Default ipv6 action should be 'add'

This may be a useful feature, but it doesn't fit well into
the established Mininet API, which assumes a single default
IP address for each interface.

.dockerignore

@@ -1 +0,0 @@
-Dockerfile

.gitattributes

@@ -0,0 +1 @@
+*.py diff=python

.github/workflows/docker.yml

@@ -1,44 +0,0 @@
-name: Publish Docker image
-
-on:
-  push:
-    branches:
-      - master
-  workflow_dispatch:
-
-env:
-  REGISTRY: ghcr.io
-  IMAGE_NAME: ${{ github.repository }}
-
-jobs:
-  publish:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      packages: write
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Login to ${{ env.REGISTRY }}
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ env.REGISTRY }}
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Extract metadata for Docker
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-
-      - name: Build and push Docker image
-        uses: docker/build-push-action@v5
-        with:
-          context: .
-          pull: true
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}

.gitignore

@@ -1,21 +1,14 @@
-# Python
+mnexec
+*.pyc
+*~
+*.1
+*.xcodeproj
+*.xcworkspace
+\#*\#
+mininet.egg-info
 build
 dist
-Mini_NDN.egg-info
-*.pyc
+doc/html
+doc/latex
+trunk
 
-# Docs
-docs/html
-docs/latex
-docs/_build
-
-# Misc
-.DS_Store
-dl
-*.apconf
-
-# Vagrant
-.vagrant
-
-venv/
-.vscode

.pylint

@@ -0,0 +1,301 @@
+# lint Python modules using external checkers.
+#
+# This is the main checker controlling the other ones and the reports
+# generation. It is itself both a raw checker and an astng checker in order
+# to:
+# * handle message activation / deactivation at the module level
+# * handle some basic but necessary stats'data (number of classes, methods...)
+#
+[MASTER]
+
+# Specify a configuration file.
+#rcfile=
+
+# Python code to execute, usually for sys.path manipulation such as
+# pygtk.require().
+#init-hook=
+
+# Profiled execution.
+profile=no
+
+# Add <file or directory> to the black list. It should be a base name, not a
+# path. You may set this option multiple times.
+ignore=CVS
+
+# Pickle collected data for later comparisons.
+persistent=yes
+
+# List of plugins (as comma separated values of python modules names) to load,
+# usually to register additional checkers.
+load-plugins=
+
+
+[MESSAGES CONTROL]
+
+# Enable the message, report, category or checker with the given id(s). You can
+# either give multiple identifier separated by comma (,) or put this option
+# multiple time.
+#enable=
+
+# Disable the message, report, category or checker with the given id(s). You
+# can either give multiple identifier separated by comma (,) or put this option
+# multiple time (only on the command line, not in the configuration file where
+# it should appear only once).
+disable=pointless-except, invalid-name, super-init-not-called, fixme, star-args,
+        too-many-instance-attributes, too-few-public-methods, too-many-arguments,
+        too-many-locals, too-many-public-methods, duplicate-code, bad-whitespace,
+        locally-disabled
+
+[REPORTS]
+
+# Set the output format. Available formats are text, parseable, colorized, msvs
+# (visual studio) and html
+output-format=colorized
+msg-template='{path}:{line}: [{msg_id}({symbol}), {obj}] {msg}'
+
+# Include message's id in output
+include-ids=yes
+
+# Put messages in a separate file for each module / package specified on the
+# command line instead of printing them on stdout. Reports (if any) will be
+# written in a file name "pylint_global.[txt|html]".
+files-output=no
+
+# Tells wether to display a full report or only the messages
+reports=no
+
+# Python expression which should return a note less than 10 (10 is the highes
+# note). You have access to the variables errors warning, statement which
+# respectivly contain the number of errors / warnings messages and the total
+# number of statements analyzed. This is used by the global evaluation repor
+# (R0004).
+evaluation=10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)
+
+# Add a comment according to your evaluation note. This is used by the global
+# evaluation report (R0004).
+comment=no
+
+# Enable the report(s) with the given id(s).
+#enable-report=
+
+# Disable the report(s) with the given id(s).
+#disable-report=
+
+
+# checks for :
+# * doc strings
+# * modules / classes / functions / methods / arguments / variables name
+# * number of arguments, local variables, branchs, returns and statements in
+# functions, methods
+# * required module attributes
+# * dangerous default values as arguments
+# * redefinition of function / method / class
+# * uses of the global statemen
+#
+[BASIC]
+
+# Required attributes for module, separated by a comma
+required-attributes=
+
+# Regular expression which should only match functions or classes name which do
+# not require a docstring
+no-docstring-rgx=__.*__
+
+# Regular expression which should only match correct module names
+module-rgx=(([a-z_][a-z0-9_]*)|([A-Z][a-zA-Z0-9]+))$
+
+# Regular expression which should only match correct module level names
+const-rgx=(([A-Z_][A-Z0-9_]*)|(__.*__))$
+
+# Regular expression which should only match correct class names
+class-rgx=[A-Z_][a-zA-Z0-9]+$
+
+# Regular expression which should only match correct function names
+function-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression which should only match correct method names
+method-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression which should only match correct instance attribute names
+attr-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression which should only match correct argument names
+argument-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression which should only match correct variable names
+variable-rgx=[a-z_][a-z0-9_]{2,30}$
+
+# Regular expression which should only match correct list comprehension /
+# generator expression variable names
+inlinevar-rgx=[A-Za-z_][A-Za-z0-9_]*$
+
+# Good variable names which should always be accepted, separated by a comma
+good-names=i,j,k,ex,Run,_
+
+# Bad variable names which should always be refused, separated by a comma
+bad-names=foo,bar,baz,toto,tutu,tata
+
+# List of builtins function names that should not be used, separated by a comma
+bad-functions=map,filter,apply,inpu
+
+
+# try to find bugs in the code using type inference
+#
+[TYPECHECK]
+
+# Tells wether missing members accessed in mixin class should be ignored. A
+# mixin class is detected if its name ends with "mixin" (case insensitive).
+ignore-mixin-members=yes
+
+# List of classes names for which member attributes should not be checked
+# (useful for classes with attributes dynamicaly set).
+ignored-classes=SQLObjec
+
+# When zope mode is activated, add a predefined set of Zope acquired attributes
+# to generated-members.
+zope=no
+
+# List of members which are set dynamically and missed by pylint inference
+# system, and so shouldn't trigger E0201 when accessed.
+generated-members=REQUEST,acl_users,aq_paren
+
+
+# checks for
+# * unused variables / imports
+# * undefined variables
+# * redefinition of variable from builtins or from an outer scope
+# * use of variable before assigmen
+#
+[VARIABLES]
+
+# Tells wether we should check for unused import in __init__ files.
+init-import=no
+
+# A regular expression matching names used for dummy variables (i.e. not used).
+dummy-variables-rgx=_|dummy
+
+# List of additional names supposed to be defined in builtins. Remember tha
+# you should avoid to define new builtins when possible.
+additional-builtins=
+
+
+# checks for :
+# * methods without self as first argumen
+# * overridden methods signature
+# * access only to existant members via self
+# * attributes not defined in the __init__ method
+# * supported interfaces implementation
+# * unreachable code
+#
+[CLASSES]
+
+# List of interface methods to ignore, separated by a comma. This is used for
+# instance to not check methods defines in Zope's Interface base class.
+ignore-iface-methods=isImplementedBy,deferred,extends,names,namesAndDescriptions,queryDescriptionFor,getBases,getDescriptionFor,getDoc,getName,getTaggedValue,getTaggedValueTags,isEqualOrExtendedBy,setTaggedValue,isImplementedByInstancesOf,adaptWith,is_implemented_by
+
+# List of method names used to declare (i.e. assign) instance attributes.
+defining-attr-methods=__init__,__new__,setUp,build
+
+
+# checks for sign of poor/misdesign:
+# * number of methods, attributes, local variables...
+# * size, complexity of functions, methods
+#
+[DESIGN]
+
+# Maximum number of arguments for function / method
+max-args=5
+
+# Maximum number of locals for function / method body
+max-locals=15
+
+# Maximum number of return / yield for function / method body
+max-returns=6
+
+# Maximum number of branch for function / method body
+max-branchs=12
+
+# Maximum number of statements in function / method body
+max-statements=50
+
+# Maximum number of parents for a class (see R0901).
+max-parents=7
+
+# Maximum number of attributes for a class (see R0902).
+max-attributes=7
+
+# Minimum number of public methods for a class (see R0903).
+min-public-methods=2
+
+# Maximum number of public methods for a class (see R0904).
+max-public-methods=20
+
+
+# checks for
+# * external modules dependencies
+# * relative / wildcard imports
+# * cyclic imports
+# * uses of deprecated modules
+#
+[IMPORTS]
+
+# Deprecated modules which should not be used, separated by a comma
+deprecated-modules=regsub,string,TERMIOS,Bastion,rexec
+
+# Create a graph of every (i.e. internal and external) dependencies in the
+# given file (report R0402 must not be disabled)
+import-graph=
+
+# Create a graph of external dependencies in the given file (report R0402 mus
+# not be disabled)
+ext-import-graph=
+
+# Create a graph of internal dependencies in the given file (report R0402 mus
+# not be disabled)
+int-import-graph=
+
+
+# checks for :
+# * unauthorized constructions
+# * strict indentation
+# * line length
+# * use of <> instead of !=
+#
+[FORMAT]
+
+# Maximum number of characters on a single line.
+max-line-length=80
+
+# Maximum number of lines in a module
+# XXX 1500 -> 4000 for miniedit.py
+max-module-lines=4000
+
+# String used as indentation unit. This is usually " " (4 spaces) or "\t" (1
+# tab).
+indent-string='    '
+
+
+# checks for:
+# * warning notes in the code like FIXME, XXX
+# * PEP 263: source code with non ascii character but no encoding declaration
+#
+[MISCELLANEOUS]
+
+# List of note tags to take in consideration, separated by a comma.
+notes=FIXME,XXX,TODO
+
+
+# checks for similarities and duplicated code. This computation may be
+# memory / CPU intensive, so you should disable it if you experiments some
+# problems.
+#
+[SIMILARITIES]
+
+# Minimum lines number of a similarity.
+min-similarity-lines=4
+
+# Ignore comments when computing similarities.
+ignore-comments=yes
+
+# Ignore docstrings when computing similarities.
+ignore-docstrings=yes

AUTHORS.rst

@@ -1,38 +0,0 @@
-Mini-NDN Authors
-=================
-
-The following lists maintainers, primary developers, and all much-appreciated contributors to Mini-NDN in alphabetic order.
-The specific contributions of individual authors can be obtained from the git history of the [official Mini-NDN repository](https://github.com/named-data/mini-ndn).
-If you would like to become a contributor to the official repository, please follow the recommendations in https://github.com/named-data/.github/blob/master/CONTRIBUTING.md.
-
-* Alexander Afanasyev <https://users.cs.fiu.edu/~afanasyev>
-* Muktadir R. Chowdhury <https://github.com/alvyC>
-* Damian Coomes <https://github.com/dmcoomes>
-* ***(Maintainer)*** Saurab Dulal <https://dulalsaurab.github.io>
-* Laqin Fan <https://github.com/laqinfan>
-* ***(Former Maintainer)*** Ashlesh Gawande <https://www.linkedin.com/in/agawande>
-* Nicholas Gordon <https://github.com/gorgonical>
-* Giovanni Grieco <https://github.com/GiovanniGrieco>
-* ***(Maintainer)*** Alexander Lane <https://github.com/awlane>
-* Vince Lehman <http://vslehman.com>
-* Philipp Moll <https://github.com/phylib>
-* Eric Newberry <https://ericnewberry.com>
-* Junxiao Shi <https://cs.arizona.edu/~shijunxiao>
-* Jeff Thompson <https://remap.ucla.edu/jeff-thompson>
-* Yucheng Zhang <https://peterskycloud.wixsite.com/yzportfolio>
-* Italo Valcy S Brito <https://github.com/italovalcy>
-
-
-Technical Advisors
--------------------
-
-* Lan Wang <http://www.cs.memphis.edu/~lanwang>
-* Beichuan Zhang <http://cs.arizona.edu/~bzhang>
-
-
-The Mini-CCNx team
--------------------
-
-* Carlos Cabral <https://github.com/carlosmscabral>
-* Caio de Moraes Elias <https://github.com/ocaio>
-* Christian Esteve Rothenberg <http://www.dca.fee.unicamp.br/~chesteve>

CONTRIBUTORS

@@ -0,0 +1,49 @@
+Mininet Contributors
+
+Mininet is an open source project and we gratefully acknowledge
+the many contributions to the project! If you have contributed
+code into the project and are not on this list, please let us know
+or send a pull request.
+
+Contributors include:
+
+Mininet Core Team (and alumni)
+
+Bob Lantz
+Brandon Heller
+Nikhil Handigol
+Vimal Jeyakumar
+Brian O'Connor
+Cody Burkard
+
+Additional Mininet Contributors
+
+Tomasz Buchert
+Gustavo Pantuza Coelho Pinto
+Fernando Cappi
+Ryan Cox
+Shaun Crampton
+David Erickson
+Glen Gibb
+Andrew Ferguson
+Eder Leao Fernandes
+Gregory Gee
+Jon Hall
+Vitaly Ivanov
+Rich Lane
+Rémy Léone
+Zi Shen Lim
+Murphy McCauley
+José Pedro Oliveira
+James Page
+Angad Singh
+Piyush Srivastava
+Ed Swierk
+Darshan Thaker
+Andreas Wundsam
+Isaku Yamahata
+Baohua Yang
+
+Thanks also to everyone who has submitted issues and pull
+requests on github, and to our friendly mininet-discuss
+mailing list!

COPYING.md

@@ -1,674 +0,0 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The GNU General Public License is a free, copyleft license for
-software and other kinds of works.
-
-  The licenses for most software and other practical works are designed
-to take away your freedom to share and change the works.  By contrast,
-the GNU General Public License is intended to guarantee your freedom to
-share and change all versions of a program--to make sure it remains free
-software for all its users.  We, the Free Software Foundation, use the
-GNU General Public License for most of our software; it applies also to
-any other work released this way by its authors.  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-them if you wish), that you receive source code or can get it if you
-want it, that you can change the software or use pieces of it in new
-free programs, and that you know you can do these things.
-
-  To protect your rights, we need to prevent others from denying you
-these rights or asking you to surrender the rights.  Therefore, you have
-certain responsibilities if you distribute copies of the software, or if
-you modify it: responsibilities to respect the freedom of others.
-
-  For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must pass on to the recipients the same
-freedoms that you received.  You must make sure that they, too, receive
-or can get the source code.  And you must show them these terms so they
-know their rights.
-
-  Developers that use the GNU GPL protect your rights with two steps:
-(1) assert copyright on the software, and (2) offer you this License
-giving you legal permission to copy, distribute and/or modify it.
-
-  For the developers' and authors' protection, the GPL clearly explains
-that there is no warranty for this free software.  For both users' and
-authors' sake, the GPL requires that modified versions be marked as
-changed, so that their problems will not be attributed erroneously to
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-
-  Some devices are designed to deny users access to install or run
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-  The precise terms and conditions for copying, distribution and
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-
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Dockerfile

@@ -1,37 +0,0 @@
-# Setup container with Ubuntu 22.04 image
-FROM ubuntu:22.04
-
-# Set the working directory to /
-WORKDIR /
-
-# expose ports for openvswitch-switch
-EXPOSE 6633 6653 6640
-
-# Update container image
-RUN apt-get update -y && \
-    apt-get install --no-install-recommends -y \
-        lsb-release sudo \
-        zip unzip wget git ca-certificates \
-        curl iproute2 iputils-ping net-tools \
-        python3 python3-pip \
-        tcpdump vim x11-xserver-utils xterm && \
-        update-ca-certificates && \
-    rm -rf /var/lib/apt/lists/* && \
-    alias python=python3
-
-COPY . /mini-ndn
-
-RUN cd mini-ndn && \
-    pip3 install -r requirements.txt && \
-    ./install.sh -y --source && \
-    cd dl/mininet && make install && cd ../.. && \
-    cd dl/mininet-wifi && make install && cd ../.. && \
-    rm -rf dl && rm -rf /var/lib/apt/lists/* && cd /
-
-COPY docker/ENTRYPOINT.sh /
-RUN chmod +x ENTRYPOINT.sh
-
-# Change the working directory to /mini-ndn
-WORKDIR /mini-ndn
-
-ENTRYPOINT ["/ENTRYPOINT.sh"]

INSTALL

@@ -0,0 +1,179 @@
+
+Mininet Installation/Configuration Notes
+----------------------------------------
+
+Mininet 2.2.1d2
+---
+
+The supported installation methods for Mininet are 1) using a
+pre-built VM image, and 2) native installation on Ubuntu. You can also
+easily create your own Mininet VM image (4).
+
+(Other distributions may be supported in the future - if you would
+like to contribute an installation script, we would welcome it!)
+
+1. Easiest "installation" - use our pre-built VM image!
+
+   The easiest way to get Mininet running is to start with one of our
+   pre-built virtual machine images from <http://mininet.org/>
+
+   Boot up the VM image, log in, and follow the instructions on the
+   Mininet web site.
+
+   One advantage of using the VM image is that it doesn't mess with
+   your native OS installation or damage it in any way.
+
+   Although a single Mininet instance can simulate multiple networks
+   with multiple controllers, only one Mininet instance may currently
+   be run at a time, and Mininet requires root access in the machine
+   it's running on.  Therefore, if you have a multiuser system, you
+   may wish to consider running Mininet in a VM.
+
+2. Next-easiest option: use our Ubuntu package!
+
+   To install Mininet itself (i.e. `mn` and the Python API) on Ubuntu
+   12.10+:
+
+        sudo apt-get install mininet
+
+   Note: if you are upgrading from an older version of Mininet, make
+   sure you remove the old OVS from `/usr/local`:
+
+        sudo rm /usr/local/bin/ovs*
+        sudo rm /usr/local/sbin/ovs*
+
+3. Native installation from source
+
+3.1. Native installation from source on Ubuntu 12.04+
+
+   If you're reading this, you've probably already done so, but the
+   command to download the Mininet source code is:
+
+        git clone git://github.com/mininet/mininet.git
+
+   Note that the above git command will check out the latest and greatest
+   Mininet (which we recommend!) If you want to run the last tagged/released
+   version of Mininet, you can look at the release tags using
+
+        cd mininet
+        git tag
+
+    and then
+
+        git checkout <release tag>
+
+   where <release tag> is the release you want to check out.
+
+   If you are running Ubuntu, Debian, or Fedora, you may be able to use
+   our handy `install.sh` script, which is in `mininet/util`.
+
+   *WARNING: USE AT YOUR OWN RISK!*
+
+   `install.sh` is a bit intrusive and may possibly damage your OS
+   and/or home directory, by creating/modifying several directories
+   such as `mininet`, `openflow`, `oftest`, `pox`, etc.. We recommend
+   trying it in a VM before trying it on a system you use from day to day.
+
+   Although we hope it won't do anything completely terrible, you may
+   want to look at the script before you run it, and you should make
+   sure your system and home directory are backed up just in case!
+
+   To install Mininet itself, the OpenFlow reference implementation, and
+   Open vSwitch, you may use:
+
+        mininet/util/install.sh -fnv
+
+   This should be reasonably quick, and the following command should
+   work after the installation:
+
+        sudo mn --test pingall
+
+   To install ALL of the software which we use for OpenFlow tutorials,
+   including POX, the OpenFlow WireShark dissector, the `oftest`
+   framework, and other potentially useful software, you may use:
+
+        mininet/util/install.sh -a
+
+   This takes about 4 minutes on our test system.
+
+   You can change the directory where the dependencies are installed using
+   the -s <directory> flag.
+
+        mininet/util/install.sh -s <directory> -a
+
+3.2. Native installation from source on Fedora 18+.
+
+   As root execute the following operations:
+
+    * install git
+
+        yum install git
+
+    * create an user account (e.g. mininet) and add it to the wheel group
+
+        useradd [...] mininet
+        usermod -a -G wheel mininet
+
+    * change the SElinux setting to permissive. It can be done
+      temporarily with:
+
+        setenforce 0
+
+   then login with the new account (e.g. mininet) and do the following:
+
+    * clone the Mininet repository
+
+        git clone git://github.com/mininet/mininet.git
+
+    * install Mininet, the OpenFlow reference implementation, and
+      Open vSwitch
+
+        mininet/util/install.sh -fnv
+
+    * enable and start openvswitch
+
+        sudo systemctl enable openvswitch
+        sudo systemctl start openvswitch
+
+    * test the mininet installation
+
+        sudo mn --test pingall
+
+4. Creating your own Mininet/OpenFlow tutorial VM
+
+   Creating your own Ubuntu Mininet VM for use with the OpenFlow tutorial
+   is easy! First, create a new Ubuntu VM. Next, run two commands in it:
+
+        wget https://raw.github.com/mininet/mininet/master/util/vm/install-mininet-vm.sh
+        time install-mininet-vm.sh
+
+   Finally, verify that Mininet is installed and working in the VM:
+
+        sudo mn --test pingall
+
+5. Installation on other Linux distributions
+
+   Although we don't support other Linux distributions directly, it
+   should be possible to install and run Mininet with some degree of
+   manual effort.
+
+   In general, you must have:
+
+   * A Linux kernel compiled with network namespace support enabled
+
+   * An compatible software switch such as Open vSwitch or
+     the Linux bridge.
+
+   * Python, `bash`, `ping`, `iperf`, etc.
+
+   * Root privileges (required for network device access)
+
+   We encourage contribution of patches to the `install.sh` script to
+   support other Linux distributions.
+
+
+Good luck!
+
+Mininet Team
+
+---

LICENSE

@@ -0,0 +1,33 @@
+Mininet 2.2.1d2 License
+
+Copyright (c) 2013-2015 Open Networking Laboratory
+Copyright (c) 2009-2012 Bob Lantz and The Board of Trustees of
+The Leland Stanford Junior University
+
+Original authors: Bob Lantz and Brandon Heller
+
+We are making Mininet available for public use and benefit with the
+expectation that others will use, modify and enhance the Software and
+contribute those enhancements back to the community. However, since we
+would like to make the Software available for broadest use, with as few
+restrictions as possible permission is hereby granted, free of charge, to
+any person obtaining a copy of this Software to deal in the Software
+under the copyrights without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+The name and trademarks of copyright holder(s) may NOT be used in
+advertising or publicity pertaining to the Software or any derivatives
+without specific, written prior permission.

Makefile

@@ -0,0 +1,73 @@
+MININET = mininet/*.py
+TEST = mininet/test/*.py
+EXAMPLES = mininet/examples/*.py
+MN = bin/mn
+BIN = $(MN)
+PYSRC = $(MININET) $(TEST) $(EXAMPLES) $(BIN)
+MNEXEC = mnexec
+MANPAGES = mn.1 mnexec.1
+P8IGN = E251,E201,E302,E202,E126,E127,E203,E226
+BINDIR = /usr/bin
+MANDIR = /usr/share/man/man1
+DOCDIRS = doc/html doc/latex
+PDF = doc/latex/refman.pdf
+
+CFLAGS += -Wall -Wextra
+
+all: codecheck test
+
+clean:
+	rm -rf build dist *.egg-info *.pyc $(MNEXEC) $(MANPAGES) $(DOCDIRS)
+
+codecheck: $(PYSRC)
+	-echo "Running code check"
+	util/versioncheck.py
+	pyflakes $(PYSRC)
+	pylint --rcfile=.pylint $(PYSRC)
+#	Exclude miniedit from pep8 checking for now
+	pep8 --repeat --ignore=$(P8IGN) `ls $(PYSRC) | grep -v miniedit.py`
+
+errcheck: $(PYSRC)
+	-echo "Running check for errors only"
+	pyflakes $(PYSRC)
+	pylint -E --rcfile=.pylint $(PYSRC)
+
+test: $(MININET) $(TEST)
+	-echo "Running tests"
+	mininet/test/test_nets.py
+	mininet/test/test_hifi.py
+
+slowtest: $(MININET)
+	-echo "Running slower tests (walkthrough, examples)"
+	mininet/test/test_walkthrough.py -v
+	mininet/examples/test/runner.py -v
+
+mnexec: mnexec.c $(MN) mininet/net.py
+	cc $(CFLAGS) $(LDFLAGS) -DVERSION=\"`PYTHONPATH=. $(MN) --version`\" $< -o $@
+
+install: $(MNEXEC) $(MANPAGES)
+	install $(MNEXEC) $(BINDIR)
+	install $(MANPAGES) $(MANDIR)
+	python setup.py install
+
+develop: $(MNEXEC) $(MANPAGES)
+# 	Perhaps we should link these as well
+	install $(MNEXEC) $(BINDIR)
+	install $(MANPAGES) $(MANDIR)
+	python setup.py develop
+
+man: $(MANPAGES)
+
+mn.1: $(MN)
+	PYTHONPATH=. help2man -N -n "create a Mininet network." \
+	--no-discard-stderr $< -o $@
+
+mnexec.1: mnexec
+	help2man -N -n "execution utility for Mininet." \
+	-h "-h" -v "-v" --no-discard-stderr ./$< -o $@
+
+.PHONY: doc
+
+doc: man
+	doxygen doc/doxygen.cfg
+	make -C doc/latex

README.md

@@ -1,32 +1,132 @@
-Mini-NDN
-========
+Mininet: Rapid Prototyping for Software Defined Networks
+========================================================
 
-If you are new to the NDN community of software generally, read the
-[Contributor's Guide](https://github.com/named-data/.github/blob/master/CONTRIBUTING.md).
+*The best way to emulate almost any network on your laptop!*
 
-### What is Mini-NDN?
+Mininet 2.2.1d2
 
-Mini-NDN is a lightweight networking emulation tool that enables testing, experimentation, and
-research on the NDN platform based on [Mininet](https://github.com/mininet/mininet).
-Mini-NDN uses the NDN libraries, NFD, NLSR, and tools released by the
-[NDN project](http://named-data.net/codebase/platform/) to emulate an NDN network on a single system.
+### What is Mininet?
 
-Mini-NDN is open and free software licensed under the GPL 3.0 license. Mini-NDN is free to all
-users and developers. For more information about licensing details and limitations,
-please refer to [COPYING.md](COPYING.md).
+Mininet emulates a complete network of hosts, links, and switches
+on a single machine.  To create a sample two-host, one-switch network,
+just run:
 
-The first release of Mini-NDN is developed by members of the NSF-sponsored NDN project team.
-Mini-NDN is open to contribution from the public.
-For more details, please refer to [AUTHORS.rst](AUTHORS.rst).
-Bug reports and feedback are highly appreciated and can be made through our
-[Redmine site](http://redmine.named-data.net/projects/mini-ndn) and the
-[mini-ndn mailing list](http://www.lists.cs.ucla.edu/mailman/listinfo/mini-ndn).
+  `sudo mn`
+
+Mininet is useful for interactive development, testing, and demos,
+especially those using OpenFlow and SDN.  OpenFlow-based network
+controllers prototyped in Mininet can usually be transferred to
+hardware with minimal changes for full line-rate execution.
+
+### How does it work?
+
+Mininet creates virtual networks using process-based virtualization
+and network namespaces - features that are available in recent Linux
+kernels.  In Mininet, hosts are emulated as `bash` processes running in
+a network namespace, so any code that would normally run on a Linux
+server (like a web server or client program) should run just fine
+within a Mininet "Host".  The Mininet "Host" will have its own private
+network interface and can only see its own processes.  Switches in
+Mininet are software-based switches like Open vSwitch or the OpenFlow
+reference switch.  Links are virtual ethernet pairs, which live in the
+Linux kernel and connect our emulated switches to emulated hosts
+(processes).
+
+### Features
+
+Mininet includes:
+
+* A command-line launcher (`mn`) to instantiate networks.
+
+* A handy Python API for creating networks of varying sizes and
+  topologies.
+
+* Examples (in the `examples/` directory) to help you get started.
+
+* Full API documentation via Python `help()` docstrings, as well as
+  the ability to generate PDF/HTML documentation with `make doc`.
+
+* Parametrized topologies (`Topo` subclasses) using the Mininet
+  object.  For example, a tree network may be created with the
+  command:
+
+  `mn --topo tree,depth=2,fanout=3`
+
+* A command-line interface (`CLI` class) which provides useful
+  diagnostic commands (like `iperf` and `ping`), as well as the
+  ability to run a command to a node. For example,
+
+  `mininet> h11 ifconfig -a`
+
+  tells host h11 to run the command `ifconfig -a`
+
+* A "cleanup" command to get rid of junk (interfaces, processes, files
+  in /tmp, etc.) which might be left around by Mininet or Linux. Try
+  this if things stop working!
+
+  `mn -c`
+
+### New features in this release
+
+This is primarily a performance improvement and bug fix release.
+
+- Batch startup has been implemented for Open vSwitch, improving
+  startup performance.
+
+- OVS patch links have been implemented via OVSLink and --link ovs
+
+  Warning! These links have *serious limitations* compared to
+  virtual Ethernet pairs: they are not attached to real Linux
+  interfaces so you cannot use tcpdump or wireshark with them;
+  they also cannot be used in long chains - we don't recommend more
+  than 64 OVSLinks, for example --linear,64. However, they can offer
+  significantly better performance than veth pairs, for certain
+  configurations.
+
+- Additional information for this release and previous releases
+  may be found in the release notes on docs.mininet.org
+
+### Installation
+
+See `INSTALL` for installation instructions and details.
 
 ### Documentation
 
-Please refer to http://minindn.memphis.edu/ or [docs/index.rst](docs/index.rst) for installation, usage, and other documentation.
-The documentation can be built using:
+In addition to the API documentation (`make doc`), much useful
+information, including a Mininet walkthrough and an introduction
+to the Python API, is available on the
+[Mininet Web Site](http://mininet.org).
+There is also a wiki which you are encouraged to read and to
+contribute to, particularly the Frequently Asked Questions (FAQ.)
 
-    ./docs/build.sh
+### Support
+
+Mininet is community-supported. We encourage you to join the
+Mininet mailing list, `mininet-discuss` at:
+
+<https://mailman.stanford.edu/mailman/listinfo/mininet-discuss>
+
+### Join Us
+
+Mininet is an open source project and is currently hosted
+at <https://github.com/mininet>.  You are encouraged to download
+the code, examine it, modify it, and submit bug reports, bug fixes,
+feature requests, new features and other issues and pull requests.
+Thanks to everyone who has contributed code to the Mininet project
+(see CONTRIBUTORS for more info!) It is because of everyone's
+hard work that Mininet continues to grow and improve.
+
+### Enjoy Mininet
+
+Best wishes, and we look forward to seeing what you can do with
+Mininet to change the networking world!
+
+The Mininet Core Team:
+
+* Bob Lantz
+* Brian O'Connor
+* Cody Burkard
+
+Thanks again to all of the Mininet contributors, particularly Gregory
+Gee for his work on MiniEdit.
 
-and is available under `docs/_build/html`.

bin/mn

@@ -0,0 +1,403 @@
+#!/usr/bin/env python
+
+"""
+Mininet runner
+author: Brandon Heller (brandonh@stanford.edu)
+
+To see options:
+  sudo mn -h
+
+Example to pull custom params (topo, switch, etc.) from a file:
+  sudo mn --custom ~/mininet/custom/custom_example.py
+"""
+
+from optparse import OptionParser
+import os
+import sys
+import time
+
+# Fix setuptools' evil madness, and open up (more?) security holes
+if 'PYTHONPATH' in os.environ:
+    sys.path = os.environ[ 'PYTHONPATH' ].split( ':' ) + sys.path
+
+from mininet.clean import cleanup
+from mininet.cli import CLI
+from mininet.log import lg, LEVELS, info, debug, warn, error
+from mininet.net import Mininet, MininetWithControlNet, VERSION
+from mininet.node import ( Host, CPULimitedHost, Controller, OVSController,
+                           Ryu, NOX, RemoteController, findController,
+                           DefaultController,
+                           UserSwitch, OVSSwitch, OVSBridge,
+                           IVSSwitch )
+from mininet.nodelib import LinuxBridge
+from mininet.link import Link, TCLink, OVSLink
+from mininet.topo import SingleSwitchTopo, LinearTopo, SingleSwitchReversedTopo
+from mininet.topolib import TreeTopo, TorusTopo
+from mininet.util import customClass, specialClass, splitArgs
+from mininet.util import buildTopo
+
+from functools import partial
+
+# Experimental! cluster edition prototype
+from mininet.examples.cluster import ( MininetCluster, RemoteHost,
+                                       RemoteOVSSwitch, RemoteLink,
+                                       SwitchBinPlacer, RandomPlacer,
+                                       ClusterCleanup )
+from mininet.examples.clustercli import ClusterCLI
+
+PLACEMENT = { 'block': SwitchBinPlacer, 'random': RandomPlacer }
+
+# built in topologies, created only when run
+TOPODEF = 'minimal'
+TOPOS = { 'minimal': lambda: SingleSwitchTopo( k=2 ),
+          'linear': LinearTopo,
+          'reversed': SingleSwitchReversedTopo,
+          'single': SingleSwitchTopo,
+          'tree': TreeTopo,
+          'torus': TorusTopo }
+
+SWITCHDEF = 'default'
+SWITCHES = { 'user': UserSwitch,
+             'ovs': OVSSwitch,
+             'ovsbr' : OVSBridge,
+             # Keep ovsk for compatibility with 2.0
+             'ovsk': OVSSwitch,
+             'ivs': IVSSwitch,
+             'lxbr': LinuxBridge,
+             'default': OVSSwitch }
+
+HOSTDEF = 'proc'
+HOSTS = { 'proc': Host,
+          'rt': specialClass( CPULimitedHost, defaults=dict( sched='rt' ) ),
+          'cfs': specialClass( CPULimitedHost, defaults=dict( sched='cfs' ) ) }
+
+CONTROLLERDEF = 'default'
+CONTROLLERS = { 'ref': Controller,
+                'ovsc': OVSController,
+                'nox': NOX,
+                'remote': RemoteController,
+                'ryu': Ryu,
+                'default': DefaultController,  # Note: replaced below
+                'none': lambda name: None }
+
+LINKDEF = 'default'
+LINKS = { 'default': Link,
+          'tc': TCLink,
+          'ovs': OVSLink }
+
+
+# optional tests to run
+TESTS = [ 'cli', 'build', 'pingall', 'pingpair', 'iperf', 'all', 'iperfudp',
+          'none' ]
+
+ALTSPELLING = { 'pingall': 'pingAll',
+                'pingpair': 'pingPair',
+                'iperfudp': 'iperfUdp',
+                'iperfUDP': 'iperfUdp' }
+
+
+def addDictOption( opts, choicesDict, default, name, helpStr=None, **kwargs ):
+    """Convenience function to add choices dicts to OptionParser.
+       opts: OptionParser instance
+       choicesDict: dictionary of valid choices, must include default
+       default: default choice key
+       name: long option name
+       helpStr: help string
+       kwargs: additional arguments to add_option"""
+    if not helpStr:
+        helpStr = ( '|'.join( sorted( choicesDict.keys() ) ) +
+                    '[,param=value...]' )
+    params = dict( type='string', default=default, help=helpStr )
+    params.update( **kwargs )
+    opts.add_option( '--' + name, **params )
+
+def version( *_args ):
+    "Print Mininet version and exit"
+    print "%s" % VERSION
+    exit()
+
+
+class MininetRunner( object ):
+    "Build, setup, and run Mininet."
+
+    def __init__( self ):
+        "Init."
+        self.options = None
+        self.args = None  # May be used someday for more CLI scripts
+        self.validate = None
+
+        self.parseArgs()
+        self.setup()
+        self.begin()
+
+    def custom( self, _option, _opt_str, value, _parser ):
+        """Parse custom file and add params.
+           option: option e.g. --custom
+           opt_str: option string e.g. --custom
+           value: the value the follows the option
+           parser: option parser instance"""
+        files = []
+        if os.path.isfile( value ):
+            # Accept any single file (including those with commas)
+            files.append( value )
+        else:
+            # Accept a comma-separated list of filenames
+            files += value.split(',')
+
+        for fileName in files:
+            customs = {}
+            if os.path.isfile( fileName ):
+                execfile( fileName, customs, customs )
+                for name, val in customs.iteritems():
+                    self.setCustom( name, val )
+            else:
+                raise Exception( 'could not find custom file: %s' % fileName )
+
+    def setCustom( self, name, value ):
+        "Set custom parameters for MininetRunner."
+        if name in ( 'topos', 'switches', 'hosts', 'controllers' ):
+            # Update dictionaries
+            param = name.upper()
+            globals()[ param ].update( value )
+        elif name == 'validate':
+            # Add custom validate function
+            self.validate = value
+        else:
+            # Add or modify global variable or class
+            globals()[ name ] = value
+
+    def setNat( self, _option, opt_str, value, parser ):
+        "Set NAT option(s)"
+        assert self  # satisfy pylint
+        parser.values.nat = True
+        # first arg, first char != '-'
+        if parser.rargs and parser.rargs[ 0 ][ 0 ] != '-':
+            value = parser.rargs.pop( 0 )
+            _, args, kwargs = splitArgs( opt_str + ',' + value )
+            parser.values.nat_args = args
+            parser.values.nat_kwargs = kwargs
+        else:
+            parser.values.nat_args = []
+            parser.values.nat_kwargs = {}
+
+    def parseArgs( self ):
+        """Parse command-line args and return options object.
+           returns: opts parse options dict"""
+
+        desc = ( "The %prog utility creates Mininet network from the\n"
+                 "command line. It can create parametrized topologies,\n"
+                 "invoke the Mininet CLI, and run tests." )
+
+        usage = ( '%prog [options]\n'
+                  '(type %prog -h for details)' )
+
+        opts = OptionParser( description=desc, usage=usage )
+        addDictOption( opts, SWITCHES, SWITCHDEF, 'switch' )
+        addDictOption( opts, HOSTS, HOSTDEF, 'host' )
+        addDictOption( opts, CONTROLLERS, [], 'controller', action='append' )
+        addDictOption( opts, LINKS, LINKDEF, 'link' )
+        addDictOption( opts, TOPOS, TOPODEF, 'topo' )
+
+        opts.add_option( '--clean', '-c', action='store_true',
+                         default=False, help='clean and exit' )
+        opts.add_option( '--custom', action='callback',
+                         callback=self.custom,
+                         type='string',
+                         help='read custom classes or params from .py file(s)'
+                         )
+
+        opts.add_option( '--test', type='choice', choices=TESTS,
+                         default=TESTS[ 0 ],
+                         help='|'.join( TESTS ) )
+        opts.add_option( '--xterms', '-x', action='store_true',
+                         default=False, help='spawn xterms for each node' )
+        opts.add_option( '--ipbase', '-i', type='string', default='10.0.0.0/8',
+                         help='base IP address for hosts' )
+        opts.add_option( '--mac', action='store_true',
+                         default=False, help='automatically set host MACs' )
+        opts.add_option( '--arp', action='store_true',
+                         default=False, help='set all-pairs ARP entries' )
+        opts.add_option( '--verbosity', '-v', type='choice',
+                         choices=LEVELS.keys(), default = 'info',
+                         help = '|'.join( LEVELS.keys() )  )
+        opts.add_option( '--innamespace', action='store_true',
+                         default=False, help='sw and ctrl in namespace?' )
+        opts.add_option( '--listenport', type='int', default=6634,
+                         help='base port for passive switch listening' )
+        opts.add_option( '--nolistenport', action='store_true',
+                         default=False, help="don't use passive listening " +
+                         "port")
+        opts.add_option( '--pre', type='string', default=None,
+                         help='CLI script to run before tests' )
+        opts.add_option( '--post', type='string', default=None,
+                         help='CLI script to run after tests' )
+        opts.add_option( '--pin', action='store_true',
+                         default=False, help="pin hosts to CPU cores "
+                         "(requires --host cfs or --host rt)" )
+        opts.add_option( '--nat', action='callback', callback=self.setNat,
+                         help="adds a NAT to the topology that"
+                         " connects Mininet hosts to the physical network."
+                         " Warning: This may route any traffic on the machine"
+                         " that uses Mininet's"
+                         " IP subnet into the Mininet network."
+                         " If you need to change"
+                         " Mininet's IP subnet, see the --ipbase option." )
+        opts.add_option( '--version', action='callback', callback=version,
+                         help='prints the version and exits' )
+        opts.add_option( '--cluster', type='string', default=None,
+                         metavar='server1,server2...',
+                         help=( 'run on multiple servers (experimental!)' ) )
+        opts.add_option( '--placement', type='choice',
+                         choices=PLACEMENT.keys(), default='block',
+                         metavar='block|random',
+                         help=( 'node placement for --cluster '
+                                '(experimental!) ' ) )
+
+        self.options, self.args = opts.parse_args()
+
+        # We don't accept extra arguments after the options
+        if self.args:
+            opts.print_help()
+            exit()
+
+    def setup( self ):
+        "Setup and validate environment."
+
+        # set logging verbosity
+        if LEVELS[self.options.verbosity] > LEVELS['output']:
+            print ( '*** WARNING: selected verbosity level (%s) will hide CLI '
+                    'output!\n'
+                    'Please restart Mininet with -v [debug, info, output].'
+                    % self.options.verbosity )
+        lg.setLogLevel( self.options.verbosity )
+
+    # Maybe we'll reorganize this someday...
+    # pylint: disable=too-many-branches,too-many-statements
+
+    def begin( self ):
+        "Create and run mininet."
+
+        if self.options.cluster:
+            servers = self.options.cluster.split( ',' )
+            for server in servers:
+                ClusterCleanup.add( server )
+
+        if self.options.clean:
+            cleanup()
+            exit()
+
+        start = time.time()
+
+        if not self.options.controller:
+            # Update default based on available controllers
+            CONTROLLERS[ 'default' ] = findController()
+            self.options.controller = [ 'default' ]
+            if not CONTROLLERS[ 'default' ]:
+                self.options.controller = [ 'none' ]
+                if self.options.switch == 'default':
+                    info( '*** No default OpenFlow controller found '
+                          'for default switch!\n' )
+                    info( '*** Falling back to OVS Bridge\n' )
+                    self.options.switch = 'ovsbr'
+                elif self.options.switch not in ( 'ovsbr', 'lxbr' ):
+                    raise Exception( "Could not find a default controller "
+                                     "for switch %s" %
+                                     self.options.switch )
+
+        topo = buildTopo( TOPOS, self.options.topo )
+        switch = customClass( SWITCHES, self.options.switch )
+        host = customClass( HOSTS, self.options.host )
+        controller = [ customClass( CONTROLLERS, c )
+                       for c in self.options.controller ]
+        link = customClass( LINKS, self.options.link )
+
+        if self.validate:
+            self.validate( self.options )
+
+        ipBase = self.options.ipbase
+        xterms = self.options.xterms
+        mac = self.options.mac
+        arp = self.options.arp
+        pin = self.options.pin
+        listenPort = None
+        if not self.options.nolistenport:
+            listenPort = self.options.listenport
+
+        # Handle inNamespace, cluster options
+        inNamespace = self.options.innamespace
+        cluster = self.options.cluster
+        if inNamespace and cluster:
+            print "Please specify --innamespace OR --cluster"
+            exit()
+        Net = MininetWithControlNet if inNamespace else Mininet
+        cli = ClusterCLI if cluster else CLI
+        if cluster:
+            warn( '*** WARNING: Experimental cluster mode!\n'
+                  '*** Using RemoteHost, RemoteOVSSwitch, RemoteLink\n' )
+            host, switch, link = RemoteHost, RemoteOVSSwitch, RemoteLink
+            Net = partial( MininetCluster, servers=servers,
+                           placement=PLACEMENT[ self.options.placement ] )
+
+        mn = Net( topo=topo,
+                  switch=switch, host=host, controller=controller,
+                  link=link,
+                  ipBase=ipBase,
+                  inNamespace=inNamespace,
+                  xterms=xterms, autoSetMacs=mac,
+                  autoStaticArp=arp, autoPinCpus=pin,
+                  listenPort=listenPort )
+
+        if self.options.ensure_value( 'nat', False ):
+            nat = mn.addNAT( *self.options.nat_args,
+                             **self.options.nat_kwargs )
+            nat.configDefault()
+
+        if self.options.pre:
+            cli( mn, script=self.options.pre )
+
+        test = self.options.test
+        test = ALTSPELLING.get( test, test )
+
+        mn.start()
+
+        if test == 'none':
+            pass
+        elif test == 'all':
+            mn.waitConnected()
+            mn.start()
+            mn.ping()
+            mn.iperf()
+        elif test == 'cli':
+            cli( mn )
+        elif test != 'build':
+            mn.waitConnected()
+            getattr( mn, test )()
+
+        if self.options.post:
+            cli( mn, script=self.options.post )
+
+        mn.stop()
+
+        elapsed = float( time.time() - start )
+        info( 'completed in %0.3f seconds\n' % elapsed )
+
+
+if __name__ == "__main__":
+    try:
+        MininetRunner()
+    except KeyboardInterrupt:
+        info( "\n\nKeyboard Interrupt. Shutting down and cleaning up...\n\n")
+        cleanup()
+    except Exception:
+        # Print exception
+        type_, val_, trace_ = sys.exc_info()
+        errorMsg = ( "-"*80 + "\n" +
+                     "Caught exception. Cleaning up...\n\n" +
+                     "%s: %s\n" % ( type_.__name__, val_ ) +
+                     "-"*80 + "\n" )
+        error( errorMsg )
+        # Print stack trace to debug log
+        import traceback
+        stackTrace = traceback.format_exc()
+        debug( stackTrace + "\n" )
+        cleanup()

custom/README

@@ -0,0 +1,6 @@
+This directory should hold configuration files for custom mininets.
+
+See custom_example.py, which loads the default minimal topology.  The advantage of defining a mininet in a separate file is that you then use the --custom option in mn to run the CLI or specific tests with it.
+
+To start up a mininet with the provided custom topology, do:
+  sudo mn --custom custom_example.py --topo mytopo

custom/topo-2sw-2host.py

@@ -0,0 +1,34 @@
+"""Custom topology example
+
+Two directly connected switches plus a host for each switch:
+
+   host --- switch --- switch --- host
+
+Adding the 'topos' dict with a key/value pair to generate our newly defined
+topology enables one to pass in '--topo=mytopo' from the command line.
+"""
+
+from mininet.topo import Topo
+
+class MyTopo( Topo ):
+    "Simple topology example."
+
+    def __init__( self ):
+        "Create custom topo."
+
+        # Initialize topology
+        Topo.__init__( self )
+
+        # Add hosts and switches
+        leftHost = self.addHost( 'h1' )
+        rightHost = self.addHost( 'h2' )
+        leftSwitch = self.addSwitch( 's3' )
+        rightSwitch = self.addSwitch( 's4' )
+
+        # Add links
+        self.addLink( leftHost, leftSwitch )
+        self.addLink( leftSwitch, rightSwitch )
+        self.addLink( rightSwitch, rightHost )
+
+
+topos = { 'mytopo': ( lambda: MyTopo() ) }

debian/changelog

@@ -0,0 +1,33 @@
+mininet (2.1.0-0ubuntu1) saucy; urgency=low
+
+  * Add 2.1.0 final packaging
+
+ -- Bob Lantz <rlantz@cs.stanford.edu>  Wed, 18 Sep 2013 22:43:47 -0700
+
+mininet (2.1.0~rc1-0ubuntu1) saucy; urgency=low
+
+  * New upstream release candidate:
+    - d/control: Drop dependency on python-networkx, add iperf, socat
+      and cgroup-bin to Depends.
+
+ -- James Page <james.page@ubuntu.com>  Wed, 28 Aug 2013 10:10:20 +0100
+
+mininet (2.0.0-0ubuntu1) raring; urgency=low
+
+  * New upstream release.
+
+ -- James Page <james.page@ubuntu.com>  Wed, 19 Dec 2012 15:48:01 +0000
+
+mininet (2.0.0~rc1-0ubuntu1) quantal; urgency=low
+
+  * New upstream release.
+  * Update copyright to match upstream release
+  * Fix this message
+
+ -- Bob Lantz <rlantz@cs.stanford.edu>  Sun, 18 Nov 2012 00:15:09 -0800
+
+mininet (2.0.0~d4-0ubuntu1) quantal; urgency=low
+
+  * Initial release.
+
+ -- Bob Lantz <rlantz@cs.stanford.edu>  Tue, 07 Aug 2012 14:11:27 -0700

debian/compat

@@ -0,0 +1 @@
+9

debian/control

@@ -0,0 +1,31 @@
+Source: mininet
+Section: net
+Priority: extra
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Bob Lantz <rlantz@cs.stanford.edu>
+Standards-Version: 3.9.3
+Build-Depends:
+ debhelper (>= 9~),
+ help2man,
+ python-dev,
+ python-pkg-resources,
+ python-setuptools
+Homepage: http://openflow.org/mininet
+
+Package: mininet
+Architecture: any
+Depends:
+ openvswitch-switch,
+ telnet,
+ socat,
+ iperf,
+ cgroup-bin,
+ ${misc:Depends},
+ ${python:Depends},
+ ${shlibs:Depends}
+Recommends: openvswitch-controller
+Description: Process-based network emulator
+ Mininet is a network emulator which uses lightweight
+ virtualization to create virtual networks for rapid
+ prototyping of Software-Defined Network (SDN) designs
+ using OpenFlow.

debian/copyright

@@ -0,0 +1,37 @@
+Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0
+Upstream-Name: mininet
+Source: https://github.com/mininet/mininet
+
+Files: *
+Copyright: 2012-2013 Open Networking Laboratory,
+           2009-2012 Bob Lantz,
+           2009-2012 The Board of Trustees of the Leland Stanford Junior
+           University
+License:
+  Original authors: Bob Lantz and Brandon Heller
+  .
+  We are making Mininet available for public use and benefit with the
+  expectation that others will use, modify and enhance the Software and
+  contribute those enhancements back to the community. However, since we
+  would like to make the Software available for broadest use, with as few
+  restrictions as possible permission is hereby granted, free of charge, to
+  any person obtaining a copy of this Software to deal in the Software
+  under the copyrights without restriction, including without limitation
+  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+  and/or sell copies of the Software, and to permit persons to whom the
+  Software is furnished to do so, subject to the following conditions:
+  .
+  The above copyright notice and this permission notice shall be included
+  in all copies or substantial portions of the Software.
+  .
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+  .
+  The name and trademarks of copyright holder(s) may NOT be used in
+  advertising or publicity pertaining to the Software or any derivatives
+  without specific, written prior permission.

debian/docs

@@ -0,0 +1 @@
+README.md

debian/examples

@@ -0,0 +1 @@
+examples/*

debian/install

@@ -0,0 +1 @@
+mnexec /usr/bin

debian/manpages

@@ -0,0 +1 @@
+*.1

debian/rules

@@ -0,0 +1,12 @@
+#!/usr/bin/make -f
+
+%:
+	dh $@ --buildsystem=python_distutils --with=python2 
+
+override_dh_auto_build:
+	make man
+	make mnexec
+	dh_auto_build
+
+get-orig-source:
+	uscan --force-download --rename

debian/source/format

@@ -0,0 +1 @@
+3.0 (quilt)

debian/watch

@@ -0,0 +1,3 @@
+version=3
+opts=filenamemangle=s/(.*)\/archive/$1/,uversionmangle=s/([abdr].*)\.tar\.gz/~$1/ \
+https://github.com/mininet/mininet/tags .*/archive\/(\d.*\.tar\.gz)

docker/ENTRYPOINT.sh

@@ -1,11 +0,0 @@
-#!/usr/bin/env bash
-
-# set python3 alias, but needs permanent fix in image directly
-alias python=python3
-
-service openvswitch-switch start
-ovs-vsctl set-manager ptcp:6640
-
-bash
-
-service openvswitch-switch stop

docker/README.md

@@ -1,35 +0,0 @@
-
-[comments]: The original author of Mini-NDN docker is Md Ashiqur Rahman (marahman@email.arizona.edu)
-
-## Running Mini-NDN inside Docker
-
-You can use the nightly build from GitHub package registry
-```bash
-docker run -m 4g --cpus=4 -it --privileged \
-           -v /lib/modules:/lib/modules \
-           ghcr.io/named-data/mini-ndn:master bash
-```
-
-## Building your own image
-
-The Dockerfile can be used directly to `build` an image from scratch.
-
-* Build with `Dockerfile`:
-  * Clone the repository and type.
-    ```bash
-    docker build -t minindn .
-    ```
-  * You can then access the container through shell with,
-    ```bash
-    docker run -m 4g --cpus=4 -it --privileged \
-           -v /lib/modules:/lib/modules \
-           minindn bin/bash
-    ```
-
-### Notes:
-
-* Memory (-m), CPU (--cpus) are recommended by Mini-NDN.
-* `--privileged` is mandatory for underlying [Mininet](http://mininet.org/) to utilize virtual switch
-* Root directory on `run` is `/mini-ndn` containing the installation and examples.
-* GUI may not work for now due to docker and xterm setup issues and is independent from Mini-NDN.
-If you intend to run the GUI, pass `-e DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix` to the `docker run` command.

docs/Makefile

@@ -1,20 +0,0 @@
-# Minimal makefile for Sphinx documentation
-#
-
-# You can set these variables from the command line, and also
-# from the environment for the first two.
-SPHINXOPTS    ?=
-SPHINXBUILD   ?= sphinx-build
-SOURCEDIR     = .
-BUILDDIR      = _build
-
-# Put it first so that "make" without argument is like "make help".
-help:
-	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
-
-.PHONY: help Makefile
-
-# Catch-all target: route all unknown targets to Sphinx using the new
-# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
-%: Makefile
-	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

docs/authors.rst

@@ -1 +0,0 @@
-.. include:: ../AUTHORS.rst

docs/build.sh

@@ -1,36 +0,0 @@
-#!/bin/bash
-# -*- Mode:bash; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2021, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-set -eo pipefail
-cd "$(dirname "${BASH_SOURCE[0]}")"
-
-PIP='python3 -m pip'
-
-for PIPPKG in sphinx sphinx_rtd_theme; do
-  if ! $PIP show $PIPPKG >/dev/null; then
-    sudo $PIP install $PIPPKG
-  fi
-done
-
-make clean html

docs/conf.py

@@ -1,61 +0,0 @@
-# Configuration file for the Sphinx documentation builder.
-#
-# This file only contains a selection of the most common options. For a full
-# list see the documentation:
-# https://www.sphinx-doc.org/en/master/usage/configuration.html
-
-# -- Path setup --------------------------------------------------------------
-
-# If extensions (or modules to document with autodoc) are in another directory,
-# add these directories to sys.path here. If the directory is relative to the
-# documentation root, use os.path.abspath to make it absolute, like shown here.
-#
-# import os
-# import sys
-# sys.path.insert(0, os.path.abspath('.'))
-from datetime import datetime
-from minindn import __version__
-
-# -- Project information -----------------------------------------------------
-
-project = 'Mini-NDN'
-copyright = '2015-{}, Mini-NDN. This research is partially supported by NSF.'.format(datetime.now().year)
-author = 'Mini-NDN'
-
-# The full version, including alpha/beta/rc tags
-release = __version__
-version = __version__
-
-# -- General configuration ---------------------------------------------------
-
-# Add any Sphinx extension module names here, as strings. They can be
-# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
-# ones.
-extensions = [
-]
-
-# Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
-
-# List of patterns, relative to source directory, that match files and
-# directories to ignore when looking for source files.
-# This pattern also affects html_static_path and html_extra_path.
-exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
-
-
-# -- Options for HTML output -------------------------------------------------
-
-# The theme to use for HTML and HTML Help pages.  See the documentation for
-# a list of builtin themes.
-#
-html_theme = 'sphinx_rtd_theme'
-
-# Add any paths that contain custom static files (such as style sheets) here,
-# relative to this directory. They are copied after the builtin static files,
-# so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
-
-# Need to specify the line below if custom conf.py
-# https://github.com/readthedocs/readthedocs.org/issues/2569
-# https://stackoverflow.com/questions/56336234/build-fail-sphinx-error-contents-rst-not-found
-master_doc = 'index'

docs/experiment.rst

@@ -1,274 +0,0 @@
-Experiment
-==========
-
-Configuration
--------------
-
-Mini-NDN uses a configuration file describing the topology and its parameters to setup a network.
-
-The [nodes] section:
-
-At the bare minimum, the node section describes the nodes present in the
-topology.
-
-::
-
-    [nodes]
-    a: key1=value1 key2=value2
-    b: key1=value1
-
-Any key and value passed here is accessible in Mini-NDN as:
-
-::
-
-    ndn = Minindn(...)
-    value = ndn.net.hosts[0].params['params'].get('key1', "defaultValue")
-
-One can specify log levels for each node's NFD and NLSR using this key-value system:
-
-::
-
-    [nodes]
-    a: nfd-log-level=DEBUG nlsr-log-level=DEBUG
-    b: nfd-log-level=INFO
-
-To specify a log level for certain modules of NFD, the following line can be added to `nfd.py`:
-
-::
-
-   node.cmd('infoedit -f {} -s log.Forwarder -v {}'.format(self.confFile, 'INFO'))
-
-This will turn on FORWARDER logging to INFO for all nodes.
-
-.. Todo: Add switch section
-
-The [links] section:
-
-The links section describes the links in the topology.
-
-::
-
-    e.g.)
-
-    [links]
-    a:b delay=10ms
-
-This would create a link between a and b. 'b:a' would also result in the
-same. The following parameters can be configured for a node:
-
--  delay : Delay parameter is a required parameter which defines the
-   delay of the link (1-1000ms)
-
--  bw : Bandwidth of a link (<1-1000> Mbps)
-
--  loss : Percentage of packet loss (<1-100>)
-
-Example configuration file
-
-::
-
-    [nodes]
-    a:
-    b:
-    [links]
-    a:b delay=10ms bw=100
-
-See ``ndn_utils/topologies`` for more sample files
-
-Sample
-------
-
-Sample experiment may written as follows:
-
-.. code:: python
-
-    from mininet.log import setLogLevel, info
-
-    from minindn.minindn import Minindn
-    from minindn.util import MiniNDNCLI
-    from minindn.apps.appmanager import AppManager
-    from minindn.apps.nfd import Nfd
-    from minindn.apps.nlsr import Nlsr
-    from minindn.helpers.routing_helper import IPRoutingHelper
-
-    if __name__ == '__main__':
-        setLogLevel('info')
-
-        Minindn.cleanUp()
-        Minindn.verifyDependencies()
-
-        # Can pass a custom parser, custom topology, or any Mininet params here
-        ndn = Minindn()
-
-        ndn.start()
-
-        # IP reachability if needed
-        # IPRoutingHelper.calcAllRoutes(ndn.net)
-        # info("IP routes configured, start ping\n")
-        # ndn.net.pingAll()
-
-        # Start apps with AppManager which registers a clean up function with ndn
-        info('Starting NFD on nodes\n')
-        nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-        info('Starting NLSR on nodes\n')
-        nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr)
-
-        # or can not start NLSRs with some delay in between:
-        # nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr)
-        # for host in ndn.net.hosts:
-        #     nlsrs.startOnNode(host)
-        #     time.sleep(30)
-
-        MiniNDNCLI(ndn.net)
-
-        # Calls the clean up functions registered via AppManager
-        ndn.stop()
-
-Users may look at how the NFD and NLSR applications are written as a sub class of Application
-in the ``minindn/apps`` folder. Or users may choose to directly run their application on nodes
-such as ndnpingserver is run in ``minindn/helpers/experiment.py``.
-
-**Note:** A certain log-level can be set-up for all the NFD or NLSR nodes at once by passing it as an argument during the startup.
-
-``nfds = AppManager(self.ndn, self.ndn.net.hosts, Nfd, logLevel='DEBUG')`` (same for NLSR)
-
-Execution
----------
-
-To run Mini-NDN with the default topology,
-``ndn_utils/topologies/default-topology.conf``, type:
-
-::
-
-    sudo python examples/minindn.py
-
-To run Mini-NDN with a topology file, provide the filename as the first
-argument:
-
-::
-
-    sudo python examples/minindn.py my-topology.conf
-
-After Mini-NDN is installed, users can run examples from anywhere with python directly as follows:
-
-::
-
-    sudo python /path/to/myexample.py
-
-The user no longer needs to create an experiment in the old Mini-NDN way, then install it to the system before executing it via the minindn binary. The new examples can be separate from the Mini-NDN folder if the core is not being modified.
-
-CLI Interface
-_____________
-
-During set up, the list of nodes in the network will be listed as they
-are initialized:
-
-::
-
-    *** Adding hosts:
-    a b c d
-
-After set up, the command-line interface (CLI) will display a prompt.
-
-::
-
-    mini-ndn>
-
-To interact with a node, first type the node's name and then the command
-to be executed:
-
-::
-
-    mini-ndn> a echo "Hello, world!"
-    Hello, world!
-
-To see the status of the forwarder on the node:
-
-::
-
-    mini-ndn> a nfdc status report
-
-To see the status of routing on the node:
-
-::
-
-    mini-ndn> a nlsrc status
-
-To exit Mini-NDN, type ``quit`` in the CLI or use ``ctrl + D``:
-
-::
-
-    mini-ndn> quit
-
-``Ctrl + C`` is used to quit an application run in the foreground of the command line.
-
-For a more in depth explanation of the CLI, please see the `Mininet
-Walkthrough <http://mininet.org/walkthrough/>`__.
-
-To run NDN commands from the outside the command line user can also open a new terminal
-and export the HOME folder of a node ``export HOME=/tmp/minindn/a && cd ~``
-
-Working Directory Structure
----------------------------
-
-Currently Mini-NDN uses /tmp/minindn as the working directory if not
-specified otherwise by using the option --work-dir.
-
-Each node is given a HOME directory under /tmp/minindn/<node-name> where
-<node-name> is the name of the node specified in the [nodes] section of
-the conf file.
-
-NFD
-___
-
-- NFD conf file is stored at ``/tmp/minindn/<node-name>/nfd.conf``
-
-- NFD log file is stored at ``/tmp/minindn/<node-name>/log/nfd.log``
-
-- ``.ndn`` folder is stored at ``/tmp/minindn/<node-name>/.ndn``
-
-NLSR
-____
-
-- NLSR conf file is stored at ``/tmp/minindn/<node-name>/nlsr.conf``
-- NLSR log file is stored at ``/tmp/minindn/<node-name>/log/nlsr.log``
-
-When security is enabled, NLSR security certificates are stored in:
-``/tmp/minindn/<node-name>/security`` Note that no NLSR publishes the root
-certificate, Mini-NDN installs root.cert in security folder for each
-NLSR.
-
-While a host's NLSR neighbors are by default populated by adjacent nodes in wired scenarios,
-for those running NLSR on wifi stations it is required that you specify "neighbor" faces
-manually. The framework for this is provided either via a dictionary object or through
-additional sections in topology files, and may also be used for wired experiments.
-See an example of a topo of this sort in ``mini-ndn/topologies/wifi/nlsr_wifi_example.conf``.
-NLSR faces to be created can be manually specified from topology files in a ``[faces]``
-section, with the format ``nodeA:nodeB [cost=X]``. You should then call the ``setupFaces()``
-method of an initialized Mini-NDN object to get a dictionary based on this parse in the format
-``faceA:[(faceB, cost), (faceC, cost),...]``, which can finally be passed to the NLSR
-helper via the faceDict parameter. An example experiment using this methodology is located
-at ``mini-ndn/examples/wifi/nlsr_wifi.py``. Note that the aforementioned dict can also be
-created manually in the previously established format.
-
-Routing Options
-----------------
-
-Link State Routing (NLSR)
-_________________________
-By default, Mini-NDN uses `NLSR <https://github.com/named-data/NLSR>`__ for route management i.e route computation, route installation and so on. Additionally, the command line utility ``nlsrc`` can be used to advertise and withdraw prefixes and route status.
-
-
-NDN Routing Helper
-____________________
-Computes link-state or hyperbolic route/s from a given minindn topology and installs them in the FIB. The major benefit of the routing helper is to eliminate the overhead of NLSR when using larger topology. See ``examples/static_routing_experiment.py`` on how to use the helper class.
-
-**IMPORTANT:** NLSR and NDN Routing Helper are mutually exclusive, meaning you can only use one at a time, not both.
-
-**Note:** The current version of ``ndn_routing_helper`` is still in the experimental phase. It doesn't support node or link failure and runtime prefix advertisement/withdrawal. If you find any bug please report `here <https://redmine.named-data.net/projects/mini-ndn>`__ or contact the :doc:`authors <authors>`.
-
-IP Routing Helper
-____________________
-
-The routing helper allows to run IP-based evaluations with Mini-NDN. It configures static IP routes to all nodes, which means that all nodes can reach all other nodes in the network
-reachable, even when relaying is required. Please see ``examples/ip_rounting_experiment.py`` for a simple example.

docs/faq.rst

@@ -1,48 +0,0 @@
-FAQ
-=========
-
-* ``How does Mini-NDN work?``
-
-Mini-NDN's principles of operation most heavily rely on the underlying Mininet code it relies on.
-Mininet uses a combination of limited containerization via network namespaces (which give processes
-isolated interfaces and routing tables) and emulated ethernet connections via veth connections.
-In practical terms, Mini-NDN ensures that processes running on distinct nodes will run seperately
-and without interfering with each other.
-
-* ``How does Mini-NDN apply link loss/delay/etc.?``
-
-Mini-NDN relies on Mininet's code, which in turn uses the Linux tc utility on a stations' virtualized
-interfaces to apply configurations known as qdiscs to these links. Note that these will only be applied
-on egress packets from a station where it's applied.
-For more information on qdiscs and tc, view the information `here <http://wiki.linuxwall.info/doku.php/en%3aressources%3adossiers%3anetworking%3atraffic_control>`_.
-
-* ``Why use Mini-NDN rather than a simulator such as ndnSIM?``
-
-Mini-NDN is easier and faster to use because, rather than serving as a mathematical model of a network,
-it is instead running real NDN code on a real Linux kernel. This also means it's quite useful for testing code changes, as it can more accurately test the interaction of software componenents.
-
-+--------------------------------+-----------------------------------------------------------+-----------------------------------------+
-| Criteria                       | Mini-NDN                                                  | ndnSIM                                  |
-+--------------------------------+-----------------------------------------------------------+-----------------------------------------+
-| Based On                       | Mininet                                                   | ns-3                                    |
-+--------------------------------+-----------------------------------------------------------+-----------------------------------------+
-| Language                       | Python                                                    | C++                                     |
-+--------------------------------+-----------------------------------------------------------+-----------------------------------------+
-| Library/Forwarder/Applications | Use system binaries (free to use any compatible versions) | Integrated (fixed release version)      |
-+--------------------------------+-----------------------------------------------------------+-----------------------------------------+
-| Application language           | C++ (ndn-cxx), CCL (ndn-cpp, PyNDN, ndn-js, jNDN)         | C++ (ndn-cxx)                           |
-+--------------------------------+-----------------------------------------------------------+-----------------------------------------+
-| Simulation size                | Medium - Large (cluster edition in development)           | Large (can be parallelized using MPI)   |
-+--------------------------------+-----------------------------------------------------------+-----------------------------------------+
-| Simulation time                | Real time                                                 | Quick (depending on size/memory)        |
-+--------------------------------+-----------------------------------------------------------+-----------------------------------------+
-| Porting real applications      | Drop in                                                   | Changes required                        |
-+--------------------------------+-----------------------------------------------------------+-----------------------------------------+
-| Interactivity                  | Can interact directly with NFD, NLSR or Apps              | Can show stats while running            |
-+--------------------------------+-----------------------------------------------------------+-----------------------------------------+
-| Logs                           | May need to manually setup to collect                     | Available with tracer                   |
-+--------------------------------+-----------------------------------------------------------+-----------------------------------------+
-| Post processing scripts        | Not available, users need to write their own              | Available to use to process the logs    |
-+--------------------------------+-----------------------------------------------------------+-----------------------------------------+
-| Other                          | Not yet supported (Wifi in development)                   | WiFi, LTE, etc available from ns-3      |
-+--------------------------------+-----------------------------------------------------------+-----------------------------------------+

docs/hackathon.rst

@@ -1,10 +0,0 @@
-Past NDN Hackathon projects
-===========================
-
-- 1st NDN Hackathon: `NFD integration test <http://ndncomm.github.io/mini-ndn/>`_.
-- 2st NDN Hackathon: `Mini-NDN metrics <https://github.com/2nd-ndn-hackathon/mini-ndn-metrics>`_.
-- 3rd NDN Hackathon: `Mini-NDN cluster <https://github.com/3rd-ndn-hackathon/mini-NDN-cluster>`_.
-- 4th NDN Hackathon: `Mini-NDN wifi <https://github.com/4th-ndn-hackathon/Mini-NDN-Wi-Fi>`_.
-- 7th NDN Hackathon: `Mini-NDN documentation <https://github.com/7th-ndn-hackathon/mini-ndn-documentation>`_.
-- 11th NDN Hackathon: `Mini-NDN improvements <https://11th-ndn-hackathon.named-data.net/hacks.html#8-mini-ndn-improvements>`_.
-- 12th NDN Hackathon: `Mini-NDN improvements and Refactoring <https://12th-ndn-hackathon.named-data.net/hacks.html#7-mini-ndn-improvements>`_.

docs/howtos.rst

@@ -1,128 +0,0 @@
-Howtos
-======
-
-Connect Mini-NDN nodes to an outside network
----------------------------------------------
-
-Mini-NDN nodes can be connected to an outside network indirectly by
-running NFD on the local machine:
-
-::
-
-    (Mini-NDN node) ------ (NFD running on the host machine where Mini-NDN is running) ------- (External Network)
-
-Add a node in root namespace
-____________________________
-
-For this simple example, we can use a single node topology with node 'a'
-
-If we want node 'a' to connect to the host machine, we need to add a
-"root" node which has a link with node "a."
-
-Then the following code can be used:
-
-.. code:: python
-
-    topo = Topo()
-    root = topo.addHost('root', inNamespace=False)
-    a = topo.addHost('a')
-    topo.addLink(root, a, delay='10ms')
-
-    ndn = Minindn(topo=topo)
-
-    ...
-
-Configuration
-_____________
-
-Run Mini-NDN with the above code and issue ifconfig on the local
-machine to confirm the addition of the interface. You should be able to
-locate "root-eth0":
-
-::
-
-    root-eth0 Link encap:Ethernet  HWaddr 3e:eb:77:d2:6f:1f
-              inet addr:1.0.0.9  Bcast:1.0.0.11  Mask:255.255.255.252
-              inet6 addr: fe80::3ceb:77ff:fed2:6f1f/64 Scope:Link
-              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
-              RX packets:34 errors:0 dropped:0 overruns:0 frame:0
-              TX packets:33 errors:0 dropped:0 overruns:0 carrier:0
-              collisions:0 txqueuelen:1000
-              RX bytes:2667 (2.6 KB)  TX bytes:2797 (2.7 KB)
-
-To make the IP address associated with this interface persistent, add
-the following line to /etc/network/interfaces and reboot your machine:
-
-::
-
-    iface root-eth0 inet manual
-
-Check connection
-________________
-
-After rebooting, run Mini-NDN and issue the following command:
-
-::
-
-    mini-ndn>net
-    a a-eth0:b-eth0 a-eth1:c-eth0 a-eth2:root-eth0
-
-Node "a" is connected to "root-eth0". Now issue "ifconfig a-eth2" on
-node "a":
-
-::
-
-    mini-ndn>a ifconfig a-eth2
-    a-eth2    Link encap:Ethernet  HWaddr fa:76:d4:86:d3:ba
-              inet addr:1.0.0.10  Bcast:1.0.0.11  Mask:255.255.255.252
-
-As learned from the previous step, the IP address of root-eth0 is
-1.0.0.9.
-
-::
-
-    mini-ndn>a ping 1.0.0.9
-    PING 1.0.0.9 (1.0.0.9) 56(84) bytes of data.
-    64 bytes from 1.0.0.9: icmp_seq=1 ttl=64 time=0.137 ms
-    64 bytes from 1.0.0.9: icmp_seq=2 ttl=64 time=0.123 ms
-
-The host machine will also be able to ping node "a":
-
-::
-
-    VirtualBox:~$ ping 1.0.0.10
-    PING 1.0.0.10 (1.0.0.10) 56(84) bytes of data.
-    64 bytes from 1.0.0.10: icmp_seq=1 ttl=64 time=0.086 ms
-
-Run NFD on local machine and register route
-___________________________________________
-
-Start NFD on the local machine by using:
-
-::
-
-    sudo nfd
-
-The "nfd-start" script cannot be used, since the script allows only one
-instance of NFD at a time. The NFD processes running on the Mini-NDN
-nodes will prevent the "nfd-start" script from working.
-
-Now, using "nfdc register", we can register a route from node "a" in
-Mini-NDN to the NFD process on the host machine and from the host
-machine to an external machine.
-
-Also, if the local machine has a public IP, Mini-NDN nodes can be
-reached via external machines.
-
-Generate NDN testbed topology
-___________________________________________
-
-Run the following install.sh command
-
-::
-
-    python3 util/testbed_topo_generator.py
-
-This will place a "testbed.conf" file in the topologies subdirectory,
-where it can be referenced as desired. To update the topology, simply
-rerun this command.

docs/index.rst

@@ -1,30 +0,0 @@
-.. Mini-NDN documentation master file, created by
-   sphinx-quickstart on Mon Sep 23 11:15:54 2019.
-   You can adapt this file completely to your liking, but it should at least
-   contain the root `toctree` directive.
-
-Mini-NDN: A Mininet-based NDN emulator
-======================================
-
-.. toctree::
-   :maxdepth: 2
-   :caption: Contents
-
-   introduction
-   install
-   experiment
-   howtos
-   release-notes
-   faq
-   hackathon
-   videos
-
-Helpful Links
--------------
-
-* `NDN Website <http://named-data.net/>`_
-* `NDN Contributor's Guide <https://github.com/named-data/NFD/blob/master/CONTRIBUTING.md>`_
-* `Mininet Documentation <http://mininet.org/>`_
-* `Mini-NDN redmine <https://redmine.named-data.net/projects/mini-ndn>`_
-* `Mailing list <http://www.lists.cs.ucla.edu/mailman/listinfo/mini-ndn>`_
-* :doc:`Mini-NDN Team <authors>`

docs/install.rst

@@ -1,184 +0,0 @@
-Install
-=======
-
-Prerequisites
--------------
-
-Mini-NDN is tested on the following Linux distributions:
-
-- Ubuntu 20.04 (recommended)
-- Ubuntu 22.04
-- Debian 11 (WiFi scenario does not work)
-- Fedora 33 (WiFi scenario does not work)
-
-You must have sudo privileges to install and run Mini-NDN.
-
-Using Vagrantfile
------------------
-
-With Vagrant installed, simply do ``vagrant up`` which will bring up an Ubuntu 18.04 virtual machine
-and install Mini-NDN and all its dependencies on it. Please make sure to tweak the CPU core count
-(default 4 cores) and RAM (default 4GB) according to your needs before doing vagrant up. Mini-NDN
-can be found in /home/vagrant/mini-ndn which is a symlink to /vagrant if Vagrantfile was used from within mini-ndn cloned on the host. Otherwise it is an actual clone of mini-ndn.
-
-Using install.sh
-----------------
-
-Mini-NDN has the following dependencies:
-
-- `NDN Forwarding Daemon (NFD) <https://named-data.net/doc/NFD/>`_
-- `Named Data Link State Routing (NLSR) <https://named-data.net/doc/NLSR/>`_
-- `NDN Essential Tools (ndn-tools) <https://github.com/named-data/ndn-tools>`_
-- `NDN Traffic Generator <https://github.com/named-data/ndn-traffic-generator>`_
-- `infoedit <https://github.com/NDN-Routing/infoedit>`_
-- `Mininet <http://mininet.org/>`_
-- `Mininet-WiFi <https://mininet-wifi.github.io/>`_ (optional)
-
-To install Mini-NDN and its dependencies, clone this repository and run:
-
-::
-
-    ./install.sh
-
-The script accepts various command line flags.
-Some notable flags are:
-
-- ``-y`` skips interactive confirmation before installation.
-- ``--ppa`` prefers installing NDN software from `named-data PPA <https://launchpad.net/~named-data/+archive/ubuntu/ppa>`_.
-  This shortens installation time by downloading binary packages, but is only available on Ubuntu.
-- ``--source`` prefers installing NDN software from source code.
-
-IMPORTANT: For now, Mininet-WiFi only works with ``--source`` installation because the current NFD release (0.7.1) doesn't
-incorporate `issue 5155 <https://redmine.named-data.net/issues/5155>`, a required patch for WiFi module to work properly.
-With the next NFD release, Mininet-WiFi will work with both ``source`` and ``ppa``. Alternatively, you can
-checkout (at your own risk) a third-party source "`Use NFD nightly with Mini-NDN <https://yoursunny.com/t/2021/NFD-nightly-minindn/>`", which provides
-NFD-nightly version and contains all the necessary patches. 
-
-- ``--dummy-keychain`` patches ndn-cxx to use an in-memory dummy KeyChain, which reduces CPU overhead
-  and allows you to scale up Mini-NDN experiments. Large Mini-NDN experiments would run significantly
-  faster after applying this patch. However, your experiments cannot use any NDN security related
-  features (signatures, verifier, access control, etc).
-- ``--no-wifi`` skips Mininet-WiFi dependency.
-  Currently Mininet-WiFi only works on Ubuntu, so that you must specify this option when installing on other distros.
-
-You can see all command line flags by running:
-
-::
-
-    ./install.sh -h
-
-The script uses ``setup.py develop`` to point the system install of Python packages to the codebase
-directory. Therefore, you can modify ``mininet``, ``mininet-wifi``, and ``mini-ndn``, and the
-changes will be reflected immediately.
-
-If NDN software is installed from source code (not PPA), the code is downloaded to ``dl`` directory
-under your ``mini-ndn`` clone. If you modify the source code, you need to manually recompile and
-reinstall the software (``./waf && sudo ./waf install``).
-
-
-Installing Dependencies
------------------------
-
-This section outlines how to install dependnecies manually.
-If you used ``install.sh``, you do not need to perform these steps.
-
-Mininet
-_______
-
-Mini-NDN is based on Mininet. To install Mininet:
-
-::
-
-    git clone --depth 1 https://github.com/mininet/mininet.git
-
-After Mininet source is on your system, run the following command to
-install Mininet core dependencies and Open vSwitch:
-
-::
-
-    ./util/install.sh -nv
-
-To check if Mininet is working correctly, run this test:
-
-::
-
-    sudo mn --test pingall
-
-This will print out a series of statements that show the test setup and
-the results of the test. Look for ``Results:`` two-thirds of the way
-down where it will indicate the percentage of dropped packets. Your
-results should show "0% dropped (2/2 received)".
-
-NOTE: Mini-NDN, while providing a high level of emulation of hosts,
-requires programs to be installed onto your computer. It will not work
-if they are not installed. If you do not want NDN software installed
-onto your computer, you can use a virtual machine, which can be quite
-simply set up with the provided Vagrantfile.
-
-NDN dependencies
-________________
-
-Each node in Mini-NDN will run the official implementation of NDN
-installed on your system. The following dependencies are needed:
-
-Mini-NDN uses NFD, NLSR, and ndn-tools.
-
-- To install NFD: https://named-data.net/doc/NFD/current/INSTALL.html
-- To install NLSR: https://named-data.net/doc/NLSR/current/INSTALL.html
-- To install ndn-tools: https://github.com/named-data/ndn-tools
-
-.. warning::
-    Please do not try to install NDN software from both the source (GitHub) and PPA (apt).
-    It will not work in most cases! If you used ./install.sh -a in the past but now want
-    to use apt, please run ``sudo ./waf uninstall`` in all the NDN projects before proceeding
-    with apt. Similarly, remove from apt if switching to source.
-
-Please see the :ref:`scaling-note <scaling-note>` to learn about disabling
-security for better scalability.
-
-Note that all three of these can be installed from the Named Data PPA.
-Instructions for setting it up can be found in the NFD installation
-instructions. Note that PPA and installs from source **cannot** be
-mixed. You must completely remove PPA installs from the system if switching
-to source and vice-versa.
-
-For PPA installs, if you are using a custom nfd.conf file in an experiment, you should
-place it in /usr/local/etc/ndn/ rather than /etc/ndn/. This is to avoid
-a bug from the default configuration file for the PPA, which is
-incompatible with Mini-NDN.
-
-Infoedit
-________
-
-Infoedit is used to edit configuration files for NFD and NLSR.
-To install infoedit:
-
-::
-
-    git clone --depth 1 https://github.com/NDN-Routing/infoedit
-    cd infoedit
-    make
-    sudo make install
-
-Verification
-------------
-
-You can execute the following example to bring up the Mini-NDN command line
-with NFD and NLSR running on each node:
-
-::
-
-    sudo python examples/mnndn.py
-
-You can use these steps to run the sample pingall experiment:
-
-1. Issue the command: ``sudo python examples/nlsr/pingall.py``
-2. When the ``mini-ndn>`` CLI prompt appears, the experiment has
-   finished. On the Mini-NDN CLI, issue the command ``exit`` to exit the
-   experiment.
-3. Issue the command:
-   ``grep -c content /tmp/minindn/*/ping-data/*.txt``. Each file should
-   report a count of 50.
-4. Issue the command:
-   ``grep -c timeout /tmp/minindn/*/ping-data/*.txt``. Each file should
-   report a count of 0.

docs/introduction.rst

@@ -1,40 +0,0 @@
-Introduction
-=================
-
-If you are new to the NDN community of software generally, read the
-`Contributor's Guide <https://github.com/named-data/NFD/blob/master/CONTRIBUTING.md>`_.
-
-What is Mini-NDN?
------------------
-
-Mini-NDN is a lightweight networking emulation tool that enables testing, experimentation, and
-research on the NDN platform. It was initially based on `Mini-CCNx <https://github.com/chesteve/mn-ccnx>`_ which was a fork of `Mininet <https://github.com/mininet/mininet>`_. Mini-NDN uses the NDN libraries, NFD, NLSR, and tools released by the `NDN project <http://named-data.net/codebase/platform/>`_ to emulate an NDN network on a single system.
-
-The first release of Mini-NDN is developed by members of the NSF-sponsored NDN project team.
-Mini-NDN is open to contribution from the public.
-
-.. image:: minindnnet.svg
-
-License
-_______
-
-Mini-NDN is open and free software licensed under the GPL 3.0 license. Mini-NDN is free to all
-users and developers. For more information about licensing details and limitations,
-please refer to COPYING.md.
-
-Feedback/Mailing List
-_____________________
-
-Bug reports and feedback are highly appreciated and can be made through our
-`Redmine site <http://redmine.named-data.net/projects/mini-ndn>`_ and the
-`mini-ndn mailing list <http://www.lists.cs.ucla.edu/mailman/listinfo/mini-ndn>`_.
-
-Video
-_____
-
-.. raw:: html
-
- 	<div id="video-container" class="col-md-6 ">
-        <p>Mini-NDN (content maybe outdated)</p>
-         <iframe width="600" height="345" src="https://www.youtube.com/embed/UxHPqaUwefg" frameborder="0" allowfullscreen=""></iframe>
-    </div>

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-  <text transform="matrix(0.9778213687833123,0,0,0.9501950205038839,-52.301066914088324,-76.5370021990862) " font-size="16.459864px" font-style="normal" font-weight="normal" fill="#000000" font-family="Sans" id="text4035" y="102.475413" x="322.701992" xml:space="preserve">
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-  <text transform="matrix(0.935021961689298,0,0,0.9936889310882339,-2.9798247609055646,-12.086171479984756) " font-size="11.279781px" font-style="normal" font-weight="normal" fill="#000000" font-family="Sans" xml:space="preserve" x="75.549398" y="206.131281" id="text4039">
-   <tspan stroke="null" id="tspan4041" x="76.618892" y="211.163037">Private network space</tspan>
-  </text>
-  <text transform="matrix(0.935021961689298,0,0,0.9936889310882339,-2.9798247609055646,-12.086171479984756) " font-size="11.279781px" font-style="normal" font-weight="normal" fill="#000000" font-family="Sans" id="text4043" y="206.946991" x="308.474828" xml:space="preserve">
-   <tspan stroke="null" y="211.978747" x="309.544322" id="tspan4045">Private network space</tspan>
-  </text>
-  <text transform="matrix(0.935021961689298,0,0,0.9936889310882339,-2.9798247609055646,-12.086171479984756) " font-size="11.279781px" font-style="normal" font-weight="normal" fill="#000000" font-family="Sans" xml:space="preserve" x="540.174348" y="206.131281" id="text4047">
-   <tspan stroke="null" id="tspan4049" x="541.243842" y="211.163037">Private network space</tspan>
-  </text>
-  <text xml:space="preserve" text-anchor="start" font-family="Helvetica,Arial,sans-serif" font-size="15px" id="svg_1" y="377" x="203.5" stroke-width="null" stroke="null" fill="#333">Figure: Relationship between Minindn and Mininet</text>
- </g>
-</svg>   

docs/release-notes.rst

@@ -1,286 +0,0 @@
-Release Notes
-=============
-
-Mini-NDN version 0.6.0 (Major changes since version 0.5.0)
-----------------------------------------------------------
-
-**Breaking Changes**:
-
-- Rewrite install script (`issue: 4630 <https://redmine.named-data.net/issues/4630>`__)
-
-  -  Set dependency versions: PPA, git repository & commit
-  -  Separate download and build+install steps
-  -  Don't reinstall package if it's already installed
-  -  More details `here <https://github.com/named-data/mini-ndn/blob/master/docs/install.rst>`__
-
-- `Note: <https://redmine.named-data.net/issues/5161>`__ We have dropped support for python 2, the latest Mini-NDN requires at least python 3.0
-
-**New features**:
-
--  Update Mini-NDN codebase with Mini-NDN-Wifi code (`issue: 4858 <https://redmine.named-data.net/issues/4858>`__)
-
--  Provide pre-built Mini-NDN Vagrant box and Docker container
-
--  Added several new examples:
-
-  - consumer/producer
-  - ndnping
-  - traffic generator
-  - catchunks/putchunks
-
-- Allow for creation of net object without topology (`issue: 5162 <https://redmine.named-data.net/issues/5162>`__)
-
-**Improvements and Bug Fixes**:
-
--  Support running NDN applications on mixed topologies (`issue: 5160 <https://redmine.named-data.net/issues/5160>`__)
-
--  Support route addition using face-id in `Nfdc` helper (`issue: 5130 <https://redmine.named-data.net/issues/5130>`__)
-
--  Add wrapper for `ndnpingserver` and fix passing the Mininet host object as a prefix on ndnpingclient
-
--  Show status of route calculation in `NdnRoutingHelper`
-
--  Incorporate changes of `NDNPing` Class (wrapper of pingserver and pingclient) in the examples
-
--  Support simple topology files with no additional parameters
-
-
-Mini-NDN version 0.5.0 (Major changes since version 0.4.0)
-----------------------------------------------------------
-
-**Breaking Changes**:
-
--  `Mini-NDN re-design <https://redmine.named-data.net/issues/5062>`__: simple and robust design with better quality, control, and more consistency with Mininet
-
-**New features**:
-
--  Add a script to generate up-to-date NDN testbed topologies for Mini-NDN
-
--  Add Mini-NDN utility application for PCAP logging
-
--  Add NDN routing helper to compute centralized LS and HR routes
-
--  Add routing helper to allow IP communication in experiments
-
--  Add startup experiments for NLSR and current testbed topology
-
--  Move the NDNPing wrapper method to a helper class
-
--  Create a helper class to provide a wrapper around ``nfdc``
-
-**Improvements and Bug Fixes**:
-
--  Change workDir and resultDir to be class attribute
-
--  Quiet apt install for Vagrant
-
--  Fix route computation bug in ``ndn_routing_helper``
-
--  Fix overwriting of existing prefixes in ``ndn_routing_helper``
-
--  Move log files to resultDir after evaluation finishes
-
--  Check for duplicate HR coordinates in the topology file
-
--  Check PSync integration and add a tests case for it
-
--  Bug fixes in nfdc and experiments
-
--  Added functionality to check Mini-NDN dependencies
-
--  Parser fix to avoid an infinite loop
-
--  Allow use of NFD and NLSR PPA with Mini-NDN
-
--  Remove arbitrary arguments in favor of parsing arguments from experiment files
-
--  Auto-complete command-line arguments
-
--  Add option to set CS size
-
--  Adjust to use ndn-cxx logging
-
-
-Mini-NDN version 0.4.0 (changes since version 0.3.0)
-----------------------------------------------------
-
-Release date: January 10, 2018
-
-**New features**:
-
--  Use SIGQUIT to quit Mini-NDN, SIGINT to kill programs
-
--  Use Infoedit to edit NFD and NLSR configuration files
-
--  Use nlsr.conf installed in the system
-
--  Provide a Vagrantfile to setup Mini-NDN and NDN
-
--  Provide option to disable NLSR
-
--  Provide an option to run NLSR in dry-run mode
-
--  Add option to specify whether to use TCP or UDP face in nlsr.conf
-
--  Add option to specify arbitrary arguments to use in experiments
-
--  Include a single option to install Mini-NDN and all the dependencies
-
-**Bug fixes**:
-
--  Fix "key does not exist error" after NLSR starts
-
--  Update install.sh to call ldconfig after installing ChronoSync
-
--  Add hyperbolic coordinates to default topology
-
-**Misc changes**:
-
--  Add an experiment to test nlsrc
-
--  Create faces in NFD for each neighbor in NLSR
-
--  Update to latest ndn-cxx
-
--  Use /tmp/minindn folder as default work dir instead of /tmp
-
-Mini-NDN version 0.3.0 (changes since version 0.2.0)
-----------------------------------------------------
-
-Release date: March 3, 2017
-
-**New features**:
-
--  Mini-NDN cluster edition
-
--  New experiments for making NLSR testing easier
-
-**Bug fixes**:
-
--  Set site name correctly
-
--  Install missing certificates in NLSR security config
-
--  Fix quitting of NLSR due to key not found error
-
-**Misc changes**:
-
--  Removed nlsr.conf file, generate it within the code
-
--  Use argparse instead of deprecated optparse
-
--  Update security config section for NLSR
-
--  Change mininet prompt to mini-ndn
-
--  Set network name at one place
-
--  Update install.sh script to install openssl
-
--  Update install.sh script to install cryptopp from package instead of
-   compiling from source
-
--  Update install.sh to clean build folder every time to get rid of
-   removed files such as old experiments
-
--  Fix old code - use net.hosts instead of storing hosts in a variable
-
--  Use nfdc instead of deprecated nfd-status
-
-Mini-NDN version 0.2.0 (changes since version 0.1.1)
-----------------------------------------------------
-
-Release date: August 18, 2016
-
-**New features**:
-
--  Automatic security configuration for NLSR
-
--  Use /usr/local/etc/ndn/nfd.conf as default config file for NFD
-
--  Class to monitor /proc/$PID/stat file for PID
-
--  Mini-NDN exits gracefully on SIGINT and non-convergence
-
--  Faster Mini-NDN install script - does not do apt-get update everytime
-
--  NLSR is launched with explicit config file for easier process
-   identification
-
--  Add and update more documentation
-
-**Bug fixes**:
-
--  NFD is killed correctly on exit
-
--  Best route strategy is set correctly
-
-Mini-NDN version 0.1.1 (changes since version 0.1.0)
-----------------------------------------------------
-
-Release date: November 4, 2015
-
-**New features**:
-
--  Use nfd.conf.sample from currently installed NFD
-
--  Add working directory option to allow execution environment outside
-   of /tmp
-
--  Add results directory option to store experiment results after
-   completion
-
--  Add support for switches in GUI and configuration file
-
--  Add failNode and recoverNode methods to Experiment class
-
--  Add most connected node (MCN) failure experiment
-
--  Add option to specify percentage of nodes pinged
-
-**Code changes**:
-
--  Refactor program options into container class
-
--  Remove unused "FIB Entries" option from NDN host options
-
-**Bug fixes**:
-
--  Abort start up if experiment name is invalid
-
--  Restart pings after recovery in failure experiment
-
-Mini-NDN version 0.1.0 (initial release)
-----------------------------------------
-
-Release date: July 15, 2015
-
-Mini-NDN is a lightweight networking emulation tool that enables
-testing, experimentation, and research on the NDN platform. Based on
-Mininet, Mini-NDN uses the NDN libraries, NFD, NLSR, and tools released
-by the `NDN project <http://named-data.net/codebase/platform/>`__ to
-emulate an NDN network on a single system.
-
-**Included features**:
-
--  Run a complete NDN network on a single system
-
--  Automatic configuration of NLSR to provide a routable NDN network
-
--  Supports user created NDN applications
-
--  Create a topology using the included Mini-NDN Edit GUI application
-
--  Allows individual configuration of NFD and NLSR parameters for each
-   node
-
--  Provides an experiment management framework for easy creation of
-   custom networking experiments
-
--  Uses a simple topology file format to define hosts, links, and
-   configuration values
-
--  Configure network link parameters including bandwidth, delay, and
-   loss rate
-
--  Includes a pre-configured topology file to replicate the NDN testbed

docs/videos.rst

@@ -1,18 +0,0 @@
-Video Tutorials
-===============
-
-Maybe outdated since version 0.5.0.
-
-.. raw:: html
-
-    <div id="video-container" class="col-md-6 ">
-        <p>Mini-NDN Demo at ACM, 2017</p>
-         <iframe width="400" height="230" src="https://www.youtube.com/embed/xYRPHZe18o0" frameborder="0" allowfullscreen=""></iframe>
-    </div>
-
-.. raw:: html
-
-    <div id="video-container" class="col-md-6 "">
-        <p>Mini-NDN Overview </p>
-         <iframe width="400" height="230" src="https://www.youtube.com/embed/Da7t8yBWzv0" frameborder="0" allowfullscreen=""> 
-    </div>

examples/README.md

@@ -0,0 +1,179 @@
+Mininet Examples
+========================================================
+
+These examples are intended to help you get started using
+Mininet's Python API.
+
+========================================================
+
+#### baresshd.py:
+
+This example uses Mininet's medium-level API to create an sshd
+process running in a namespace. Doesn't use OpenFlow.
+
+#### bind.py:
+
+This example shows how you can create private directories for each
+node in a Mininet topology.
+
+#### cluster.py:
+
+This example contains all of the code for experimental cluster
+edition. Remote classes and MininetCluster can be imported from
+here to create a topology with nodes on remote machines.
+
+#### clusterSanity.py:
+
+This example runs cluster edition locally as a sanity check to test
+basic functionality.
+
+#### clustercli.py:
+
+This example contains a CLI for experimental cluster edition.
+
+#### clusterdemo.py:
+
+This example is a basic demo of cluster edition on 3 servers with
+a tree topology of depth 3 and fanout 3.
+
+#### consoles.py:
+
+This example creates a grid of console windows, one for each node,
+and allows interaction with and monitoring of each console, including
+graphical monitoring.
+
+#### controllers.py:
+
+This example creates a network with multiple controllers, by
+using a custom `Switch()` subclass.
+
+#### controllers2.py:
+
+This example creates a network with multiple controllers by
+creating an empty network, adding nodes to it, and manually
+starting the switches.
+
+#### controlnet.py:
+
+This examples shows how you can model the control network as well
+as the data network, by actually creating two Mininet objects.
+
+#### cpu.py:
+
+This example tests iperf bandwidth for varying CPU limits.
+
+#### emptynet.py:
+
+This example demonstrates creating an empty network (i.e. with no
+topology object) and adding nodes to it.
+
+#### hwintf.py:
+
+This example shows how to add an interface (for example a real
+hardware interface) to a network after the network is created.
+
+#### intfoptions.py:
+
+This example reconfigures a TCIntf during runtime with different
+traffic control commands to test bandwidth, loss, and delay.
+
+#### limit.py:
+
+This example shows how to use link and CPU limits.
+
+#### linearbandwidth.py:
+
+This example shows how to create a custom topology programatically
+by subclassing Topo, and how to run a series of tests on it.
+
+#### linuxrouter.py:
+
+This example shows how to create and configure a router in Mininet
+that uses Linux IP forwarding.
+
+#### miniedit.py:
+
+This example demonstrates creating a network via a graphical editor.
+
+#### mobility.py:
+
+This example demonstrates detaching an interface from one switch and
+attaching it another as a basic way to move a host around a network.
+
+#### multiLink.py:
+
+This example demonstrates the creation of multiple links between
+nodes using a custom Topology class.
+
+#### multiping.py:
+
+This example demonstrates one method for
+monitoring output from multiple hosts, using `node.monitor()`.
+
+#### multipoll.py:
+
+This example demonstrates monitoring output files from multiple hosts.
+
+#### multitest.py:
+
+This example creates a network and runs multiple tests on it.
+
+#### nat.py:
+
+This example shows how to connect a Mininet network to the Internet
+using NAT. It also answers the eternal question "why can't I ping
+`google.com`?"
+
+#### natnet.py:
+
+This example demonstrates how to create a network using a NAT node
+to connect hosts to the internet.
+
+#### numberedports.py:
+
+This example verifies the mininet ofport numbers match up to the ovs port numbers.
+It also verifies that the port numbers match up to the interface numbers
+
+#### popen.py:
+
+This example monitors a number of hosts using `host.popen()` and
+`pmonitor()`.
+
+#### popenpoll.py:
+
+This example demonstrates monitoring output from multiple hosts using
+the `node.popen()` interface (which returns `Popen` objects) and `pmonitor()`.
+
+#### scratchnet.py, scratchnetuser.py:
+
+These two examples demonstrate how to create a network by using the lowest-
+level Mininet functions. Generally the higher-level API is easier to use,
+but scratchnet shows what is going on behind the scenes.
+
+#### simpleperf.py:
+
+A simple example of configuring network and CPU bandwidth limits.
+
+#### sshd.py:
+
+This example shows how to run an `sshd` process in each host, allowing
+you to log in via `ssh`. This requires connecting the Mininet data network
+to an interface in the root namespace (generaly the control network
+already lives in the root namespace, so it does not need to be explicitly
+connected.)
+
+#### tree1024.py:
+
+This example attempts to create a 1024-host network, and then runs the
+CLI on it. It may run into scalability limits, depending on available
+memory and `sysctl` configuration (see `INSTALL`.)
+
+#### treeping64.py:
+
+This example creates a 64-host tree network, and attempts to check full
+connectivity using `ping`, for different switch/datapath types.
+
+#### vlanhost.py:
+
+An example of how to subclass Host to use a VLAN on its primary interface.
+

examples/__init__.py

@@ -0,0 +1,4 @@
+"""
+Mininet Examples
+See README for details
+"""

examples/baresshd.py

@@ -0,0 +1,43 @@
+#!/usr/bin/python
+
+"This example doesn't use OpenFlow, but attempts to run sshd in a namespace."
+
+import sys
+from mininet.node import Host
+from mininet.util import ensureRoot, waitListening
+
+ensureRoot()
+timeout = 5
+
+print "*** Creating nodes"
+h1 = Host( 'h1' )
+
+root = Host( 'root', inNamespace=False )
+
+print "*** Creating links"
+h1.linkTo( root )
+
+print h1
+
+print "*** Configuring nodes"
+h1.setIP( '10.0.0.1', 8 )
+root.setIP( '10.0.0.2', 8 )
+
+print "*** Creating banner file"
+f = open( '/tmp/%s.banner' % h1.name, 'w' )
+f.write( 'Welcome to %s at %s\n' % ( h1.name, h1.IP() ) )
+f.close()
+
+print "*** Running sshd"
+cmd = '/usr/sbin/sshd -o UseDNS=no -u0 -o "Banner /tmp/%s.banner"' % h1.name
+# add arguments from the command line
+if len( sys.argv ) > 1:
+    cmd += ' ' + ' '.join( sys.argv[ 1: ] )
+h1.cmd( cmd )
+listening = waitListening( server=h1, port=22, timeout=timeout )
+
+if listening:
+    print "*** You may now ssh into", h1.name, "at", h1.IP()
+else:
+    print ( "*** Warning: after %s seconds, %s is not listening on port 22"
+            % ( timeout, h1.name ) )

examples/bind.py

@@ -0,0 +1,67 @@
+#!/usr/bin/python
+
+"""
+bind.py: Bind mount example
+
+This creates hosts with private directories that the user specifies.
+These hosts may have persistent directories that will be available
+across multiple mininet session, or temporary directories that will
+only last for one mininet session. To specify a persistent
+directory, add a tuple to a list of private directories:
+
+    [ ( 'directory to be mounted on', 'directory to be mounted' ) ]
+
+String expansion may be used to create a directory template for
+each host. To do this, add a %(name)s in place of the host name
+when creating your list of directories:
+
+    [ ( '/var/run', '/tmp/%(name)s/var/run' ) ]
+
+If no persistent directory is specified, the directories will default
+to temporary private directories. To do this, simply create a list of
+directories to be made private. A tmpfs will then be mounted on them.
+
+You may use both temporary and persistent directories at the same
+time. In the following privateDirs string, each host will have a
+persistent directory in the root filesystem at
+"/tmp/(hostname)/var/run" mounted on "/var/run". Each host will also
+have a temporary private directory mounted on "/var/log".
+
+    [ ( '/var/run', '/tmp/%(name)s/var/run' ), '/var/log' ]
+
+This example has both persistent directories mounted on '/var/log'
+and '/var/run'. It also has a temporary private directory mounted
+on '/var/mn'
+"""
+
+from mininet.net import Mininet
+from mininet.node import Host
+from mininet.cli import CLI
+from mininet.topo import SingleSwitchTopo
+from mininet.log import setLogLevel, info
+
+from functools import partial
+
+
+# Sample usage
+
+def testHostWithPrivateDirs():
+    "Test bind mounts"
+    topo = SingleSwitchTopo( 10 )
+    privateDirs = [ ( '/var/log', '/tmp/%(name)s/var/log' ),
+                    ( '/var/run', '/tmp/%(name)s/var/run' ),
+                      '/var/mn' ]
+    host = partial( Host,
+                    privateDirs=privateDirs )
+    net = Mininet( topo=topo, host=host )
+    net.start()
+    directories = [ directory[ 0 ] if isinstance( directory, tuple )
+                    else directory for directory in privateDirs ]
+    info( 'Private Directories:', directories, '\n' )
+    CLI( net )
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    testHostWithPrivateDirs()
+    info( 'Done.\n')

examples/chunks.py

@@ -1,95 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2021, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-"""
-This example demonstrates the functionality of the ndncatchunks and ndnputchunks. There are
-programs to transfer a file as Data segments in NDN.
-https://github.com/named-data/ndn-tools/tree/master/tools/chunks.
-"""
-
-from time import sleep
-import subprocess
-
-from mininet.log import setLogLevel, info
-from minindn.minindn import Minindn
-from minindn.util import MiniNDNCLI
-from minindn.apps.app_manager import AppManager
-from minindn.apps.nfd import Nfd
-from minindn.apps.nlsr import Nlsr
-
-def sendFile(node, prefix, file):
-    """
-    Publish a file using ndnputchunks
-     :parma mininet.node.Host node: mininet node object
-     :param string prefix: prefix to publish the chunks of the file
-     :param string file: file to publish
-    """
-    info ("File published:", file)
-    cmd = 'ndnputchunks {}/{} < {} > putchunks.log 2>&1 &'.format(prefix, "fname", file)
-    node.cmd(cmd)
-    # Sleep for appropriate time based on the file size
-    sleep(5)
-
-def receiveFile(node, prefix, filename):
-    """
-    Fetch a file using ndncatchunks
-     :parma mininet.node.Host node: mininet node object
-     :param string prefix: producer's prefix under which the file the published
-     :param string file: name given to the file that will be received
-    """
-    info ("Fething file: ", filename)
-    cmd = 'ndncatchunks {}/{} > {} 2> catchunks.log &'.format(prefix, "fname", filename)
-    node.cmd(cmd)
-
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    # Create a test file to publish
-    testFile = "/tmp/test-chunks"
-    cmd = 'echo "demonstrate file transfer using catchunks and putchunks" > {}'.format(testFile)
-    subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE).communicate()
-
-    Minindn.cleanUp()
-    Minindn.verifyDependencies()
-    ndn = Minindn()
-    ndn.start()
-
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-    nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr)
-    sleep(70)
-
-    # Default topology is used in this experiment "/topologies/default-topology.conf"
-    # lets make node "a" as a producer node, and node "c" as a conumer node
-    producer  = ndn.net['a']
-    producerPrefix = "/test-producer" # prefix under which the file will be published
-    consumer = ndn.net['c']
-
-    # Advertise the producer prefix to the network
-    producer.cmd('nlsrc advertise {}'.format(producerPrefix))
-    sleep (5) # sleep for routing convergence.
-
-    sendFile(producer, producerPrefix, testFile)
-    receiveFile(consumer, producerPrefix, "test-chunks")
-
-    MiniNDNCLI(ndn.net)
-    ndn.stop()

examples/cluster.py

@@ -0,0 +1,914 @@
+#!/usr/bin/python
+
+"""
+cluster.py: prototyping/experimentation for distributed Mininet,
+            aka Mininet: Cluster Edition
+
+Author: Bob Lantz
+
+Core classes:
+
+    RemoteNode: a Node() running on a remote server
+    RemoteOVSSwitch(): an OVSSwitch() running on a remote server
+    RemoteLink: a Link() on a remote server
+    Tunnel: a Link() between a local Node() and a RemoteNode()
+
+These are largely interoperable with local objects.
+
+- One Mininet to rule them all
+
+It is important that the same topologies, APIs, and CLI can be used
+with minimal or no modification in both local and distributed environments.
+
+- Multiple placement models
+
+Placement should be as easy as possible. We should provide basic placement
+support and also allow for explicit placement.
+
+Questions:
+
+What is the basic communication mechanism?
+
+To start with? Probably a single multiplexed ssh connection between each
+pair of mininet servers that needs to communicate.
+
+How are tunnels created?
+
+We have several options including ssh, GRE, OF capsulator, socat, VDE, l2tp,
+etc..  It's not clear what the best one is.  For now, we use ssh tunnels since
+they are encrypted and semi-automatically shared.  We will probably want to
+support GRE as well because it's very easy to set up with OVS.
+
+How are tunnels destroyed?
+
+They are destroyed when the links are deleted in Mininet.stop()
+
+How does RemoteNode.popen() work?
+
+It opens a shared ssh connection to the remote server and attaches to
+the namespace using mnexec -a -g.
+
+Is there any value to using Paramiko vs. raw ssh?
+
+Maybe, but it doesn't seem to support L2 tunneling.
+
+Should we preflight the entire network, including all server-to-server
+connections?
+
+Yes! We don't yet do this with remote server-to-server connections yet.
+
+Should we multiplex the link ssh connections?
+
+Yes, this is done automatically with ControlMaster=auto.
+
+Note on ssh and DNS:
+Please add UseDNS: no to your /etc/ssh/sshd_config!!!
+
+Things to do:
+
+- asynchronous/pipelined/parallel startup
+- ssh debugging/profiling
+- make connections into real objects
+- support for other tunneling schemes
+- tests and benchmarks
+- hifi support (e.g. delay compensation)
+"""
+
+from mininet.node import Node, Host, OVSSwitch, Controller
+from mininet.link import Link, Intf
+from mininet.net import Mininet
+from mininet.topo import LinearTopo
+from mininet.topolib import TreeTopo
+from mininet.util import quietRun, errRun
+from mininet.examples.clustercli import CLI
+from mininet.log import setLogLevel, debug, info, error
+from mininet.clean import addCleanupCallback
+
+from signal import signal, SIGINT, SIG_IGN
+from subprocess import Popen, PIPE, STDOUT
+import os
+from random import randrange
+import sys
+import re
+from itertools import groupby
+from operator import attrgetter
+from distutils.version import StrictVersion
+
+
+def findUser():
+    "Try to return logged-in (usually non-root) user"
+    return (
+            # If we're running sudo
+            os.environ.get( 'SUDO_USER', False ) or
+            # Logged-in user (if we have a tty)
+            ( quietRun( 'who am i' ).split() or [ False ] )[ 0 ] or
+            # Give up and return effective user
+            quietRun( 'whoami' ) )
+
+
+class ClusterCleanup( object ):
+    "Cleanup callback"
+
+    inited = False
+    serveruser = {}
+
+    @classmethod
+    def add( cls, server, user='' ):
+        "Add an entry to server: user dict"
+        if not cls.inited:
+            addCleanupCallback( cls.cleanup )
+        if not user:
+            user = findUser()
+        cls.serveruser[ server ] = user
+
+    @classmethod
+    def cleanup( cls ):
+        "Clean up"
+        info( '*** Cleaning up cluster\n' )
+        for server, user in cls.serveruser.iteritems():
+            if server == 'localhost':
+                # Handled by mininet.clean.cleanup()
+                continue
+            else:
+                cmd = [ 'su', user, '-c',
+                        'ssh %s@%s sudo mn -c' % ( user, server ) ]
+                info( cmd, '\n' )
+                info( quietRun( cmd ) )
+
+# BL note: so little code is required for remote nodes,
+# we will probably just want to update the main Node()
+# class to enable it for remote access! However, there
+# are a large number of potential failure conditions with
+# remote nodes which we may want to detect and handle.
+# Another interesting point is that we could put everything
+# in a mix-in class and easily add cluster mode to 2.0.
+
+class RemoteMixin( object ):
+
+    "A mix-in class to turn local nodes into remote nodes"
+
+    # ssh base command
+    # -q: don't print stupid diagnostic messages
+    # BatchMode yes: don't ask for password
+    # ForwardAgent yes: forward authentication credentials
+    sshbase = [ 'ssh', '-q',
+                '-o', 'BatchMode=yes',
+                '-o', 'ForwardAgent=yes', '-tt' ]
+
+    def __init__( self, name, server='localhost', user=None, serverIP=None,
+                  controlPath=False, splitInit=False, **kwargs):
+        """Instantiate a remote node
+           name: name of remote node
+           server: remote server (optional)
+           user: user on remote server (optional)
+           controlPath: specify shared ssh control path (optional)
+           splitInit: split initialization?
+           **kwargs: see Node()"""
+        # We connect to servers by IP address
+        self.server = server if server else 'localhost'
+        self.serverIP = ( serverIP if serverIP
+                          else self.findServerIP( self.server ) )
+        self.user = user if user else findUser()
+        ClusterCleanup.add( server=server, user=user )
+        if controlPath is True:
+            # Set a default control path for shared SSH connections
+            controlPath = '/tmp/mn-%r@%h:%p'
+        self.controlPath = controlPath
+        self.splitInit = splitInit
+        if self.user and self.server != 'localhost':
+            self.dest = '%s@%s' % ( self.user, self.serverIP )
+            self.sshcmd = [ 'sudo', '-E', '-u', self.user ] + self.sshbase
+            if self.controlPath:
+                self.sshcmd += [ '-o', 'ControlPath=' + self.controlPath,
+                                 '-o', 'ControlMaster=auto',
+                                 '-o', 'ControlPersist=' + '1' ]
+            self.sshcmd += [ self.dest ]
+            self.isRemote = True
+        else:
+            self.dest = None
+            self.sshcmd = []
+            self.isRemote = False
+        # Satisfy pylint
+        self.shell, self.pid = None, None
+        super( RemoteMixin, self ).__init__( name, **kwargs )
+
+    # Determine IP address of local host
+    _ipMatchRegex = re.compile( r'\d+\.\d+\.\d+\.\d+' )
+
+    @classmethod
+    def findServerIP( cls, server ):
+        "Return our server's IP address"
+        # First, check for an IP address
+        ipmatch = cls._ipMatchRegex.findall( server )
+        if ipmatch:
+            return ipmatch[ 0 ]
+        # Otherwise, look up remote server
+        output = quietRun( 'getent ahostsv4 %s' % server )
+        ips = cls._ipMatchRegex.findall( output )
+        ip = ips[ 0 ] if ips else None
+        return ip
+
+    # Command support via shell process in namespace
+    def startShell( self, *args, **kwargs ):
+        "Start a shell process for running commands"
+        if self.isRemote:
+            kwargs.update( mnopts='-c' )
+        super( RemoteMixin, self ).startShell( *args, **kwargs )
+        # Optional split initialization
+        self.sendCmd( 'echo $$' )
+        if not self.splitInit:
+            self.finishInit()
+
+    def finishInit( self ):
+        "Wait for split initialization to complete"
+        self.pid = int( self.waitOutput() )
+
+    def rpopen( self, *cmd, **opts ):
+        "Return a Popen object on underlying server in root namespace"
+        params = { 'stdin': PIPE,
+                   'stdout': PIPE,
+                   'stderr': STDOUT,
+                   'sudo': True }
+        params.update( opts )
+        return self._popen( *cmd, **params )
+
+    def rcmd( self, *cmd, **opts):
+        """rcmd: run a command on underlying server
+           in root namespace
+           args: string or list of strings
+           returns: stdout and stderr"""
+        popen = self.rpopen( *cmd, **opts )
+        # print 'RCMD: POPEN:', popen
+        # These loops are tricky to get right.
+        # Once the process exits, we can read
+        # EOF twice if necessary.
+        result = ''
+        while True:
+            poll = popen.poll()
+            result += popen.stdout.read()
+            if poll is not None:
+                break
+        return result
+
+    @staticmethod
+    def _ignoreSignal():
+        "Detach from process group to ignore all signals"
+        os.setpgrp()
+
+    def _popen( self, cmd, sudo=True, tt=True, **params):
+        """Spawn a process on a remote node
+            cmd: remote command to run (list)
+            **params: parameters to Popen()
+            returns: Popen() object"""
+        if type( cmd ) is str:
+            cmd = cmd.split()
+        if self.isRemote:
+            if sudo:
+                cmd = [ 'sudo', '-E' ] + cmd
+            if tt:
+                cmd = self.sshcmd + cmd
+            else:
+                # Hack: remove -tt
+                sshcmd = list( self.sshcmd )
+                sshcmd.remove( '-tt' )
+                cmd = sshcmd + cmd
+        else:
+            if self.user and not sudo:
+                # Drop privileges
+                cmd = [ 'sudo', '-E', '-u', self.user ] + cmd
+        params.update( preexec_fn=self._ignoreSignal )
+        debug( '_popen', cmd, '\n' )
+        popen = super( RemoteMixin, self )._popen( cmd, **params )
+        return popen
+
+    def popen( self, *args, **kwargs ):
+        "Override: disable -tt"
+        return super( RemoteMixin, self).popen( *args, tt=False, **kwargs )
+
+    def addIntf( self, *args, **kwargs ):
+        "Override: use RemoteLink.moveIntf"
+        kwargs.update( moveIntfFn=RemoteLink.moveIntf )
+        return super( RemoteMixin, self).addIntf( *args, **kwargs )
+
+
+class RemoteNode( RemoteMixin, Node ):
+    "A node on a remote server"
+    pass
+
+
+class RemoteHost( RemoteNode ):
+    "A RemoteHost is simply a RemoteNode"
+    pass
+
+
+class RemoteOVSSwitch( RemoteMixin, OVSSwitch ):
+    "Remote instance of Open vSwitch"
+
+    OVSVersions = {}
+
+    def __init__( self, *args, **kwargs ):
+        # No batch startup yet
+        kwargs.update( batch=True )
+        super( RemoteOVSSwitch, self ).__init__( *args, **kwargs )
+
+    def isOldOVS( self ):
+        "Is remote switch using an old OVS version?"
+        cls = type( self )
+        if self.server not in cls.OVSVersions:
+            # pylint: disable=not-callable
+            vers = self.cmd( 'ovs-vsctl --version' )
+            # pylint: enable=not-callable
+            cls.OVSVersions[ self.server ] = re.findall(
+                r'\d+\.\d+', vers )[ 0 ]
+        return ( StrictVersion( cls.OVSVersions[ self.server ] ) <
+                 StrictVersion( '1.10' ) )
+
+    @classmethod
+    def batchStartup( cls, switches, **_kwargs ):
+        "Start up switches in per-server batches"
+        key = attrgetter( 'server' )
+        for server, switchGroup in groupby( sorted( switches, key=key ), key ):
+            info( '(%s)' % server )
+            group = tuple( switchGroup )
+            switch = group[ 0 ]
+            OVSSwitch.batchStartup( group, run=switch.cmd )
+        return switches
+
+    @classmethod
+    def batchShutdown( cls, switches, **_kwargs ):
+        "Stop switches in per-server batches"
+        key = attrgetter( 'server' )
+        for server, switchGroup in groupby( sorted( switches, key=key ), key ):
+            info( '(%s)' % server )
+            group = tuple( switchGroup )
+            switch = group[ 0 ]
+            OVSSwitch.batchShutdown( group, run=switch.rcmd )
+        return switches
+
+
+class RemoteLink( Link ):
+    "A RemoteLink is a link between nodes which may be on different servers"
+
+    def __init__( self, node1, node2, **kwargs ):
+        """Initialize a RemoteLink
+           see Link() for parameters"""
+        # Create links on remote node
+        self.node1 = node1
+        self.node2 = node2
+        self.tunnel = None
+        kwargs.setdefault( 'params1', {} )
+        kwargs.setdefault( 'params2', {} )
+        self.cmd = None  # satisfy pylint
+        Link.__init__( self, node1, node2, **kwargs )
+
+    def stop( self ):
+        "Stop this link"
+        if self.tunnel:
+            self.tunnel.terminate()
+            self.intf1.delete()
+            self.intf2.delete()
+        else:
+            Link.stop( self )
+        self.tunnel = None
+
+    def makeIntfPair( self, intfname1, intfname2, addr1=None, addr2=None,
+                      node1=None, node2=None, deleteIntfs=True   ):
+        """Create pair of interfaces
+            intfname1: name of interface 1
+            intfname2: name of interface 2
+            (override this method [and possibly delete()]
+            to change link type)"""
+        node1 = self.node1 if node1 is None else node1
+        node2 = self.node2 if node2 is None else node2
+        server1 = getattr( node1, 'server', 'localhost' )
+        server2 = getattr( node2, 'server', 'localhost' )
+        if server1 == server2:
+            # Link within same server
+            return Link.makeIntfPair( intfname1, intfname2, addr1, addr2,
+                                      node1, node2, deleteIntfs=deleteIntfs )
+        # Otherwise, make a tunnel
+        self.tunnel = self.makeTunnel( node1, node2, intfname1, intfname2,
+                                       addr1, addr2 )
+        return self.tunnel
+
+    @staticmethod
+    def moveIntf( intf, node, printError=True ):
+        """Move remote interface from root ns to node
+            intf: string, interface
+            dstNode: destination Node
+            srcNode: source Node or None (default) for root ns
+            printError: if true, print error"""
+        intf = str( intf )
+        cmd = 'ip link set %s netns %s' % ( intf, node.pid )
+        node.rcmd( cmd )
+        links = node.cmd( 'ip link show' )
+        if not ' %s:' % intf in links:
+            if printError:
+                error( '*** Error: RemoteLink.moveIntf: ' + intf +
+                       ' not successfully moved to ' + node.name + '\n' )
+            return False
+        return True
+
+    def makeTunnel( self, node1, node2, intfname1, intfname2,
+                    addr1=None, addr2=None ):
+        "Make a tunnel across switches on different servers"
+        # We should never try to create a tunnel to ourselves!
+        assert node1.server != 'localhost' or node2.server != 'localhost'
+        # And we can't ssh into this server remotely as 'localhost',
+        # so try again swappping node1 and node2
+        if node2.server == 'localhost':
+            return self.makeTunnel( node2, node1, intfname2, intfname1,
+                                    addr2, addr1 )
+        # 1. Create tap interfaces
+        for node in node1, node2:
+            # For now we are hard-wiring tap9, which we will rename
+            cmd = 'ip tuntap add dev tap9 mode tap user ' + node.user
+            result = node.rcmd( cmd )
+            if result:
+                raise Exception( 'error creating tap9 on %s: %s' %
+                                 ( node, result ) )
+        # 2. Create ssh tunnel between tap interfaces
+        # -n: close stdin
+        dest = '%s@%s' % ( node2.user, node2.serverIP )
+        cmd = [ 'ssh', '-n', '-o', 'Tunnel=Ethernet', '-w', '9:9',
+                dest, 'echo @' ]
+        self.cmd = cmd
+        tunnel = node1.rpopen( cmd, sudo=False )
+        # When we receive the character '@', it means that our
+        # tunnel should be set up
+        debug( 'Waiting for tunnel to come up...\n' )
+        ch = tunnel.stdout.read( 1 )
+        if ch != '@':
+            raise Exception( 'makeTunnel:\n',
+                             'Tunnel setup failed for',
+                             '%s:%s' % ( node1, node1.dest ), 'to',
+                             '%s:%s\n' % ( node2, node2.dest ),
+                             'command was:', cmd, '\n' )
+        # 3. Move interfaces if necessary
+        for node in node1, node2:
+            if not self.moveIntf( 'tap9', node ):
+                raise Exception( 'interface move failed on node %s' % node )
+        # 4. Rename tap interfaces to desired names
+        for node, intf, addr in ( ( node1, intfname1, addr1 ),
+                                  ( node2, intfname2, addr2 ) ):
+            if not addr:
+                result = node.cmd( 'ip link set tap9 name', intf )
+            else:
+                result = node.cmd( 'ip link set tap9 name', intf,
+                                   'address', addr )
+            if result:
+                raise Exception( 'error renaming %s: %s' % ( intf, result ) )
+        return tunnel
+
+    def status( self ):
+        "Detailed representation of link"
+        if self.tunnel:
+            if self.tunnel.poll() is not None:
+                status = "Tunnel EXITED %s" % self.tunnel.returncode
+            else:
+                status = "Tunnel Running (%s: %s)" % (
+                    self.tunnel.pid, self.cmd )
+        else:
+            status = "OK"
+        result = "%s %s" % ( Link.status( self ), status )
+        return result
+
+
+# Some simple placement algorithms for MininetCluster
+
+class Placer( object ):
+    "Node placement algorithm for MininetCluster"
+
+    def __init__( self, servers=None, nodes=None, hosts=None,
+                  switches=None, controllers=None, links=None ):
+        """Initialize placement object
+           servers: list of servers
+           nodes: list of all nodes
+           hosts: list of hosts
+           switches: list of switches
+           controllers: list of controllers
+           links: list of links
+           (all arguments are optional)
+           returns: server"""
+        self.servers = servers or []
+        self.nodes = nodes or []
+        self.hosts = hosts or []
+        self.switches = switches or []
+        self.controllers = controllers or []
+        self.links = links or []
+
+    def place( self, node ):
+        "Return server for a given node"
+        assert self, node  # satisfy pylint
+        # Default placement: run locally
+        return 'localhost'
+
+
+class RandomPlacer( Placer ):
+    "Random placement"
+    def place( self, nodename ):
+        """Random placement function
+            nodename: node name"""
+        assert nodename  # please pylint
+        # This may be slow with lots of servers
+        return self.servers[ randrange( 0, len( self.servers ) ) ]
+
+
+class RoundRobinPlacer( Placer ):
+    """Round-robin placement
+       Note this will usually result in cross-server links between
+       hosts and switches"""
+
+    def __init__( self, *args, **kwargs ):
+        Placer.__init__( self, *args, **kwargs )
+        self.next = 0
+
+    def place( self, nodename ):
+        """Round-robin placement function
+            nodename: node name"""
+        assert nodename  # please pylint
+        # This may be slow with lots of servers
+        server = self.servers[ self.next ]
+        self.next = ( self.next + 1 ) % len( self.servers )
+        return server
+
+
+class SwitchBinPlacer( Placer ):
+    """Place switches (and controllers) into evenly-sized bins,
+       and attempt to co-locate hosts and switches"""
+
+    def __init__( self, *args, **kwargs ):
+        Placer.__init__( self, *args, **kwargs )
+        # Easy lookup for servers and node sets
+        self.servdict = dict( enumerate( self.servers ) )
+        self.hset = frozenset( self.hosts )
+        self.sset = frozenset( self.switches )
+        self.cset = frozenset( self.controllers )
+        # Server and switch placement indices
+        self.placement = self.calculatePlacement()
+
+    @staticmethod
+    def bin( nodes, servers ):
+        "Distribute nodes evenly over servers"
+        # Calculate base bin size
+        nlen = len( nodes )
+        slen = len( servers )
+        # Basic bin size
+        quotient = int( nlen / slen )
+        binsizes = { server: quotient for server in servers }
+        # Distribute remainder
+        remainder = nlen % slen
+        for server in servers[ 0 : remainder ]:
+            binsizes[ server ] += 1
+        # Create binsize[ server ] tickets for each server
+        tickets = sum( [ binsizes[ server ] * [ server ]
+                         for server in servers ], [] )
+        # And assign one ticket to each node
+        return { node: ticket for node, ticket in zip( nodes, tickets ) }
+
+    def calculatePlacement( self ):
+        "Pre-calculate node placement"
+        placement = {}
+        # Create host-switch connectivity map,
+        # associating host with last switch that it's
+        # connected to
+        switchFor = {}
+        for src, dst in self.links:
+            if src in self.hset and dst in self.sset:
+                switchFor[ src ] = dst
+            if dst in self.hset and src in self.sset:
+                switchFor[ dst ] = src
+        # Place switches
+        placement = self.bin( self.switches, self.servers )
+        # Place controllers and merge into placement dict
+        placement.update( self.bin( self.controllers, self.servers ) )
+        # Co-locate hosts with their switches
+        for h in self.hosts:
+            if h in placement:
+                # Host is already placed - leave it there
+                continue
+            if h in switchFor:
+                placement[ h ] = placement[ switchFor[ h ] ]
+            else:
+                raise Exception(
+                        "SwitchBinPlacer: cannot place isolated host " + h )
+        return placement
+
+    def place( self, node ):
+        """Simple placement algorithm:
+           place switches into evenly sized bins,
+           and place hosts near their switches"""
+        return self.placement[ node ]
+
+
+class HostSwitchBinPlacer( Placer ):
+    """Place switches *and hosts* into evenly-sized bins
+       Note that this will usually result in cross-server
+       links between hosts and switches"""
+
+    def __init__( self, *args, **kwargs ):
+        Placer.__init__( self, *args, **kwargs )
+        # Calculate bin sizes
+        scount = len( self.servers )
+        self.hbin = max( int( len( self.hosts ) / scount ), 1 )
+        self.sbin = max( int( len( self.switches ) / scount ), 1 )
+        self.cbin = max( int( len( self.controllers ) / scount ), 1 )
+        info( 'scount:', scount )
+        info( 'bins:', self.hbin, self.sbin, self.cbin, '\n' )
+        self.servdict = dict( enumerate( self.servers ) )
+        self.hset = frozenset( self.hosts )
+        self.sset = frozenset( self.switches )
+        self.cset = frozenset( self.controllers )
+        self.hind, self.sind, self.cind = 0, 0, 0
+
+    def place( self, nodename ):
+        """Simple placement algorithm:
+            place nodes into evenly sized bins"""
+        # Place nodes into bins
+        if nodename in self.hset:
+            server = self.servdict[ self.hind / self.hbin ]
+            self.hind += 1
+        elif nodename in self.sset:
+            server = self.servdict[ self.sind / self.sbin ]
+            self.sind += 1
+        elif nodename in self.cset:
+            server = self.servdict[ self.cind / self.cbin ]
+            self.cind += 1
+        else:
+            info( 'warning: unknown node', nodename )
+            server = self.servdict[ 0 ]
+        return server
+
+
+# The MininetCluster class is not strictly necessary.
+# However, it has several purposes:
+# 1. To set up ssh connection sharing/multiplexing
+# 2. To pre-flight the system so that everything is more likely to work
+# 3. To allow connection/connectivity monitoring
+# 4. To support pluggable placement algorithms
+
+class MininetCluster( Mininet ):
+
+    "Cluster-enhanced version of Mininet class"
+
+    # Default ssh command
+    # BatchMode yes: don't ask for password
+    # ForwardAgent yes: forward authentication credentials
+    sshcmd = [ 'ssh', '-o', 'BatchMode=yes', '-o', 'ForwardAgent=yes' ]
+
+    def __init__( self, *args, **kwargs ):
+        """servers: a list of servers to use (note: include
+           localhost or None to use local system as well)
+           user: user name for server ssh
+           placement: Placer() subclass"""
+        params = { 'host': RemoteHost,
+                   'switch': RemoteOVSSwitch,
+                   'link': RemoteLink,
+                   'precheck': True }
+        params.update( kwargs )
+        servers = params.pop( 'servers', [ 'localhost' ] )
+        servers = [ s if s else 'localhost' for s in servers ]
+        self.servers = servers
+        self.serverIP = params.pop( 'serverIP', {} )
+        if not self.serverIP:
+            self.serverIP = { server: RemoteMixin.findServerIP( server )
+                              for server in self.servers }
+        self.user = params.pop( 'user', findUser() )
+        if params.pop( 'precheck' ):
+            self.precheck()
+        self.connections = {}
+        self.placement = params.pop( 'placement', SwitchBinPlacer )
+        # Make sure control directory exists
+        self.cdir = os.environ[ 'HOME' ] + '/.ssh/mn'
+        errRun( [ 'mkdir', '-p', self.cdir ] )
+        Mininet.__init__( self, *args, **params )
+
+    def popen( self, cmd ):
+        "Popen() for server connections"
+        assert self  # please pylint
+        old = signal( SIGINT, SIG_IGN )
+        conn = Popen( cmd, stdin=PIPE, stdout=PIPE, close_fds=True )
+        signal( SIGINT, old )
+        return conn
+
+    def baddLink( self, *args, **kwargs ):
+        "break addlink for testing"
+        pass
+
+    def precheck( self ):
+        """Pre-check to make sure connection works and that
+           we can call sudo without a password"""
+        result = 0
+        info( '*** Checking servers\n' )
+        for server in self.servers:
+            ip = self.serverIP[ server ]
+            if not server or server == 'localhost':
+                continue
+            info( server, '' )
+            dest = '%s@%s' % ( self.user, ip )
+            cmd = [ 'sudo', '-E', '-u', self.user ]
+            cmd += self.sshcmd + [ '-n', dest, 'sudo true' ]
+            debug( ' '.join( cmd ), '\n' )
+            _out, _err, code = errRun( cmd )
+            if code != 0:
+                error( '\nstartConnection: server connection check failed '
+                       'to %s using command:\n%s\n'
+                        % ( server, ' '.join( cmd ) ) )
+            result |= code
+        if result:
+            error( '*** Server precheck failed.\n'
+                   '*** Make sure that the above ssh command works'
+                   ' correctly.\n'
+                   '*** You may also need to run mn -c on all nodes, and/or\n'
+                   '*** use sudo -E.\n' )
+            sys.exit( 1 )
+        info( '\n' )
+
+    def modifiedaddHost( self, *args, **kwargs ):
+        "Slightly modify addHost"
+        assert self  # please pylint
+        kwargs[ 'splitInit' ] = True
+        return Mininet.addHost( *args, **kwargs )
+
+    def placeNodes( self ):
+        """Place nodes on servers (if they don't have a server), and
+           start shell processes"""
+        if not self.servers or not self.topo:
+            # No shirt, no shoes, no service
+            return
+        nodes = self.topo.nodes()
+        placer = self.placement( servers=self.servers,
+                                 nodes=self.topo.nodes(),
+                                 hosts=self.topo.hosts(),
+                                 switches=self.topo.switches(),
+                                 links=self.topo.links() )
+        for node in nodes:
+            config = self.topo.nodeInfo( node )
+            # keep local server name consistent accross nodes
+            if 'server' in config.keys() and config[ 'server' ] is None:
+                config[ 'server' ] = 'localhost'
+            server = config.setdefault( 'server', placer.place( node ) )
+            if server:
+                config.setdefault( 'serverIP', self.serverIP[ server ] )
+            info( '%s:%s ' % ( node, server ) )
+            key = ( None, server )
+            _dest, cfile, _conn = self.connections.get(
+                        key, ( None, None, None ) )
+            if cfile:
+                config.setdefault( 'controlPath', cfile )
+
+    def addController( self, *args, **kwargs ):
+        "Patch to update IP address to global IP address"
+        controller = Mininet.addController( self, *args, **kwargs )
+        # Update IP address for controller that may not be local
+        if ( isinstance( controller, Controller)
+             and controller.IP() == '127.0.0.1'
+             and ' eth0:' in controller.cmd( 'ip link show' ) ):
+            Intf( 'eth0', node=controller ).updateIP()
+        return controller
+
+    def buildFromTopo( self, *args, **kwargs ):
+        "Start network"
+        info( '*** Placing nodes\n' )
+        self.placeNodes()
+        info( '\n' )
+        Mininet.buildFromTopo( self, *args, **kwargs )
+
+
+def testNsTunnels():
+    "Test tunnels between nodes in namespaces"
+    net = Mininet( host=RemoteHost, link=RemoteLink )
+    h1 = net.addHost( 'h1' )
+    h2 = net.addHost( 'h2', server='ubuntu2' )
+    net.addLink( h1, h2 )
+    net.start()
+    net.pingAll()
+    net.stop()
+
+# Manual topology creation with net.add*()
+#
+# This shows how node options may be used to manage
+# cluster placement using the net.add*() API
+
+def testRemoteNet( remote='ubuntu2' ):
+    "Test remote Node classes"
+    print '*** Remote Node Test'
+    net = Mininet( host=RemoteHost, switch=RemoteOVSSwitch,
+                   link=RemoteLink )
+    c0 = net.addController( 'c0' )
+    # Make sure controller knows its non-loopback address
+    Intf( 'eth0', node=c0 ).updateIP()
+    print "*** Creating local h1"
+    h1 = net.addHost( 'h1' )
+    print "*** Creating remote h2"
+    h2 = net.addHost( 'h2', server=remote )
+    print "*** Creating local s1"
+    s1 = net.addSwitch( 's1' )
+    print "*** Creating remote s2"
+    s2 = net.addSwitch( 's2', server=remote )
+    print "*** Adding links"
+    net.addLink( h1, s1 )
+    net.addLink( s1, s2 )
+    net.addLink( h2, s2 )
+    net.start()
+    print 'Mininet is running on', quietRun( 'hostname' ).strip()
+    for node in c0, h1, h2, s1, s2:
+        print 'Node', node, 'is running on', node.cmd( 'hostname' ).strip()
+    net.pingAll()
+    CLI( net )
+    net.stop()
+
+
+# High-level/Topo API example
+#
+# This shows how existing Mininet topologies may be used in cluster
+# mode by creating node placement functions and a controller which
+# can be accessed remotely. This implements a very compatible version
+# of cluster edition with a minimum of code!
+
+remoteHosts = [ 'h2' ]
+remoteSwitches = [ 's2' ]
+remoteServer = 'ubuntu2'
+
+def HostPlacer( name, *args, **params ):
+    "Custom Host() constructor which places hosts on servers"
+    if name in remoteHosts:
+        return RemoteHost( name, *args, server=remoteServer, **params )
+    else:
+        return Host( name, *args, **params )
+
+def SwitchPlacer( name, *args, **params ):
+    "Custom Switch() constructor which places switches on servers"
+    if name in remoteSwitches:
+        return RemoteOVSSwitch( name, *args, server=remoteServer, **params )
+    else:
+        return RemoteOVSSwitch( name, *args, **params )
+
+def ClusterController( *args, **kwargs):
+    "Custom Controller() constructor which updates its eth0 IP address"
+    controller = Controller( *args, **kwargs )
+    # Find out its IP address so that cluster switches can connect
+    Intf( 'eth0', node=controller ).updateIP()
+    return controller
+
+def testRemoteTopo():
+    "Test remote Node classes using Mininet()/Topo() API"
+    topo = LinearTopo( 2 )
+    net = Mininet( topo=topo, host=HostPlacer, switch=SwitchPlacer,
+                   link=RemoteLink, controller=ClusterController )
+    net.start()
+    net.pingAll()
+    net.stop()
+
+# Need to test backwards placement, where each host is on
+# a server other than its switch!! But seriously we could just
+# do random switch placement rather than completely random
+# host placement.
+
+def testRemoteSwitches():
+    "Test with local hosts and remote switches"
+    servers = [ 'localhost', 'ubuntu2']
+    topo = TreeTopo( depth=4, fanout=2 )
+    net = MininetCluster( topo=topo, servers=servers,
+                          placement=RoundRobinPlacer )
+    net.start()
+    net.pingAll()
+    net.stop()
+
+
+#
+# For testing and demo purposes it would be nice to draw the
+# network graph and color it based on server.
+
+# The MininetCluster() class integrates pluggable placement
+# functions, for maximum ease of use. MininetCluster() also
+# pre-flights and multiplexes server connections.
+
+def testMininetCluster():
+    "Test MininetCluster()"
+    servers = [ 'localhost', 'ubuntu2' ]
+    topo = TreeTopo( depth=3, fanout=3 )
+    net = MininetCluster( topo=topo, servers=servers,
+                          placement=SwitchBinPlacer )
+    net.start()
+    net.pingAll()
+    net.stop()
+
+def signalTest():
+    "Make sure hosts are robust to signals"
+    h = RemoteHost( 'h0', server='ubuntu1' )
+    h.shell.send_signal( SIGINT )
+    h.shell.poll()
+    if h.shell.returncode is None:
+        print 'OK: ', h, 'has not exited'
+    else:
+        print 'FAILURE:', h, 'exited with code', h.shell.returncode
+    h.stop()
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    # testRemoteTopo()
+    # testRemoteNet()
+    # testMininetCluster()
+    # testRemoteSwitches()
+    signalTest()

examples/clusterSanity.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+
+'''
+A sanity check for cluster edition
+'''
+
+from mininet.examples.cluster import MininetCluster
+from mininet.log import setLogLevel
+from mininet.examples.clustercli import ClusterCLI as CLI
+from mininet.topo import SingleSwitchTopo
+
+def clusterSanity():
+    "Sanity check for cluster mode"
+    topo = SingleSwitchTopo()
+    net = MininetCluster( topo=topo )
+    net.start()
+    CLI( net )
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    clusterSanity()

examples/clustercli.py

@@ -0,0 +1,100 @@
+#!/usr/bin/python
+
+"CLI for Mininet Cluster Edition prototype demo"
+
+from mininet.cli import CLI
+from mininet.log import output, error
+
+# pylint: disable=global-statement
+nx, graphviz_layout, plt = None, None, None  # Will be imported on demand
+
+
+class ClusterCLI( CLI ):
+    "CLI with additional commands for Cluster Edition demo"
+
+    @staticmethod
+    def colorsFor( seq ):
+        "Return a list of background colors for a sequence"
+        colors = [ 'red', 'lightgreen', 'cyan', 'yellow', 'orange',
+                   'magenta', 'pink', 'grey', 'brown',
+                   'white' ]
+        slen, clen = len( seq ), len( colors )
+        reps = max( 1, slen / clen )
+        colors = colors * reps
+        colors = colors[ 0 : slen ]
+        return colors
+
+    def do_plot( self, _line ):
+        "Plot topology colored by node placement"
+        # Import networkx if needed
+        global nx, plt
+        if not nx:
+            try:
+                # pylint: disable=import-error
+                import networkx
+                nx = networkx  # satisfy pylint
+                from matplotlib import pyplot
+                plt = pyplot   # satisfiy pylint
+                import pygraphviz
+                assert pygraphviz  # silence pyflakes
+                # pylint: enable=import-error
+            except ImportError:
+                error( 'plot requires networkx, matplotlib and pygraphviz - '
+                       'please install them and try again\n' )
+                return
+        # Make a networkx Graph
+        g = nx.Graph()
+        mn = self.mn
+        servers, hosts, switches = mn.servers, mn.hosts, mn.switches
+        nodes = hosts + switches
+        g.add_nodes_from( nodes )
+        links = [ ( link.intf1.node, link.intf2.node )
+                  for link in self.mn.links ]
+        g.add_edges_from( links )
+        # Pick some shapes and colors
+        # shapes = hlen * [ 's' ] + slen * [ 'o' ]
+        color = dict( zip( servers, self.colorsFor( servers ) ) )
+        # Plot it!
+        pos = nx.graphviz_layout( g )
+        opts = { 'ax': None, 'font_weight': 'bold',
+                 'width': 2, 'edge_color': 'darkblue' }
+        hcolors = [ color[ getattr( h, 'server', 'localhost' ) ]
+                    for h in hosts ]
+        scolors = [ color[ getattr( s, 'server', 'localhost' ) ]
+                    for s in switches ]
+        nx.draw_networkx( g, pos=pos, nodelist=hosts, node_size=800,
+                          label='host', node_color=hcolors, node_shape='s',
+                          **opts )
+        nx.draw_networkx( g, pos=pos, nodelist=switches, node_size=1000,
+                          node_color=scolors, node_shape='o', **opts )
+        # Get rid of axes, add title, and show
+        fig = plt.gcf()
+        ax = plt.gca()
+        ax.get_xaxis().set_visible( False )
+        ax.get_yaxis().set_visible( False )
+        fig.canvas.set_window_title( 'Mininet')
+        plt.title( 'Node Placement', fontweight='bold' )
+        plt.show()
+
+    def do_status( self, _line ):
+        "Report on node shell status"
+        nodes = self.mn.hosts + self.mn.switches
+        for node in nodes:
+            node.shell.poll()
+        exited = [ node for node in nodes
+                   if node.shell.returncode is not None ]
+        if exited:
+            for node in exited:
+                output( '%s has exited with code %d\n'
+                        % ( node, node.shell.returncode ) )
+        else:
+            output( 'All nodes are still running.\n' )
+
+    def do_placement( self, _line ):
+        "Describe node placement"
+        mn = self.mn
+        nodes = mn.hosts + mn.switches + mn.controllers
+        for server in mn.servers:
+            names = [ n.name for n in nodes if hasattr( n, 'server' )
+                      and n.server == server ]
+            output( '%s: %s\n' % ( server, ' '.join( names ) ) )

examples/clusterdemo.py

@@ -0,0 +1,22 @@
+#!/usr/bin/python
+
+"clusterdemo.py: demo of Mininet Cluster Edition prototype"
+
+from mininet.examples.cluster import MininetCluster, SwitchBinPlacer
+from mininet.topolib import TreeTopo
+from mininet.log import setLogLevel
+from mininet.examples.clustercli import ClusterCLI as CLI
+
+def demo():
+    "Simple Demo of Cluster Mode"
+    servers = [ 'localhost', 'ubuntu2', 'ubuntu3' ]
+    topo = TreeTopo( depth=3, fanout=3 )
+    net = MininetCluster( topo=topo, servers=servers,
+                          placement=SwitchBinPlacer )
+    net.start()
+    CLI( net )
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    demo()

examples/consoles.py

@@ -0,0 +1,466 @@
+#!/usr/bin/python
+
+"""
+consoles.py: bring up a bunch of miniature consoles on a virtual network
+
+This demo shows how to monitor a set of nodes by using
+Node's monitor() and Tkinter's createfilehandler().
+
+We monitor nodes in a couple of ways:
+
+- First, each individual node is monitored, and its output is added
+  to its console window
+
+- Second, each time a console window gets iperf output, it is parsed
+  and accumulated. Once we have output for all consoles, a bar is
+  added to the bandwidth graph.
+
+The consoles also support limited interaction:
+
+- Pressing "return" in a console will send a command to it
+
+- Pressing the console's title button will open up an xterm
+
+Bob Lantz, April 2010
+
+"""
+
+import re
+
+from Tkinter import Frame, Button, Label, Text, Scrollbar, Canvas, Wm, READABLE
+
+from mininet.log import setLogLevel
+from mininet.topolib import TreeNet
+from mininet.term import makeTerms, cleanUpScreens
+from mininet.util import quietRun
+
+class Console( Frame ):
+    "A simple console on a host."
+
+    def __init__( self, parent, net, node, height=10, width=32, title='Node' ):
+        Frame.__init__( self, parent )
+
+        self.net = net
+        self.node = node
+        self.prompt = node.name + '# '
+        self.height, self.width, self.title = height, width, title
+
+        # Initialize widget styles
+        self.buttonStyle = { 'font': 'Monaco 7' }
+        self.textStyle = {
+            'font': 'Monaco 7',
+            'bg': 'black',
+            'fg': 'green',
+            'width': self.width,
+            'height': self.height,
+            'relief': 'sunken',
+            'insertbackground': 'green',
+            'highlightcolor': 'green',
+            'selectforeground': 'black',
+            'selectbackground': 'green'
+        }
+
+        # Set up widgets
+        self.text = self.makeWidgets( )
+        self.bindEvents()
+        self.sendCmd( 'export TERM=dumb' )
+
+        self.outputHook = None
+
+    def makeWidgets( self ):
+        "Make a label, a text area, and a scroll bar."
+
+        def newTerm( net=self.net, node=self.node, title=self.title ):
+            "Pop up a new terminal window for a node."
+            net.terms += makeTerms( [ node ], title )
+        label = Button( self, text=self.node.name, command=newTerm,
+                        **self.buttonStyle )
+        label.pack( side='top', fill='x' )
+        text = Text( self, wrap='word', **self.textStyle )
+        ybar = Scrollbar( self, orient='vertical', width=7,
+                          command=text.yview )
+        text.configure( yscrollcommand=ybar.set )
+        text.pack( side='left', expand=True, fill='both' )
+        ybar.pack( side='right', fill='y' )
+        return text
+
+    def bindEvents( self ):
+        "Bind keyboard and file events."
+        # The text widget handles regular key presses, but we
+        # use special handlers for the following:
+        self.text.bind( '<Return>', self.handleReturn )
+        self.text.bind( '<Control-c>', self.handleInt )
+        self.text.bind( '<KeyPress>', self.handleKey )
+        # This is not well-documented, but it is the correct
+        # way to trigger a file event handler from Tk's
+        # event loop!
+        self.tk.createfilehandler( self.node.stdout, READABLE,
+                                   self.handleReadable )
+
+    # We're not a terminal (yet?), so we ignore the following
+    # control characters other than [\b\n\r]
+    ignoreChars = re.compile( r'[\x00-\x07\x09\x0b\x0c\x0e-\x1f]+' )
+
+    def append( self, text ):
+        "Append something to our text frame."
+        text = self.ignoreChars.sub( '', text )
+        self.text.insert( 'end', text )
+        self.text.mark_set( 'insert', 'end' )
+        self.text.see( 'insert' )
+        outputHook = lambda x, y: True  # make pylint happier
+        if self.outputHook:
+            outputHook = self.outputHook
+        outputHook( self, text )
+
+    def handleKey( self, event ):
+        "If it's an interactive command, send it to the node."
+        char = event.char
+        if self.node.waiting:
+            self.node.write( char )
+
+    def handleReturn( self, event ):
+        "Handle a carriage return."
+        cmd = self.text.get( 'insert linestart', 'insert lineend' )
+        # Send it immediately, if "interactive" command
+        if self.node.waiting:
+            self.node.write( event.char )
+            return
+        # Otherwise send the whole line to the shell
+        pos = cmd.find( self.prompt )
+        if pos >= 0:
+            cmd = cmd[ pos + len( self.prompt ): ]
+        self.sendCmd( cmd )
+
+    # Callback ignores event
+    def handleInt( self, _event=None ):
+        "Handle control-c."
+        self.node.sendInt()
+
+    def sendCmd( self, cmd ):
+        "Send a command to our node."
+        if not self.node.waiting:
+            self.node.sendCmd( cmd )
+
+    def handleReadable( self, _fds, timeoutms=None ):
+        "Handle file readable event."
+        data = self.node.monitor( timeoutms )
+        self.append( data )
+        if not self.node.waiting:
+            # Print prompt
+            self.append( self.prompt )
+
+    def waiting( self ):
+        "Are we waiting for output?"
+        return self.node.waiting
+
+    def waitOutput( self ):
+        "Wait for any remaining output."
+        while self.node.waiting:
+            # A bit of a trade-off here...
+            self.handleReadable( self, timeoutms=1000)
+            self.update()
+
+    def clear( self ):
+        "Clear all of our text."
+        self.text.delete( '1.0', 'end' )
+
+
+class Graph( Frame ):
+
+    "Graph that we can add bars to over time."
+
+    def __init__( self, parent=None, bg = 'white', gheight=200, gwidth=500,
+                  barwidth=10, ymax=3.5,):
+
+        Frame.__init__( self, parent )
+
+        self.bg = bg
+        self.gheight = gheight
+        self.gwidth = gwidth
+        self.barwidth = barwidth
+        self.ymax = float( ymax )
+        self.xpos = 0
+
+        # Create everything
+        self.title, self.scale, self.graph = self.createWidgets()
+        self.updateScrollRegions()
+        self.yview( 'moveto', '1.0' )
+
+    def createScale( self ):
+        "Create a and return a new canvas with scale markers."
+        height = float( self.gheight )
+        width = 25
+        ymax = self.ymax
+        scale = Canvas( self, width=width, height=height,
+                        background=self.bg )
+        opts = { 'fill': 'red' }
+        # Draw scale line
+        scale.create_line( width - 1, height, width - 1, 0, **opts )
+        # Draw ticks and numbers
+        for y in range( 0, int( ymax + 1 ) ):
+            ypos = height * (1 - float( y ) / ymax )
+            scale.create_line( width, ypos, width - 10, ypos, **opts )
+            scale.create_text( 10, ypos, text=str( y ), **opts )
+        return scale
+
+    def updateScrollRegions( self ):
+        "Update graph and scale scroll regions."
+        ofs = 20
+        height = self.gheight + ofs
+        self.graph.configure( scrollregion=( 0, -ofs,
+                              self.xpos * self.barwidth, height ) )
+        self.scale.configure( scrollregion=( 0, -ofs, 0, height ) )
+
+    def yview( self, *args ):
+        "Scroll both scale and graph."
+        self.graph.yview( *args )
+        self.scale.yview( *args )
+
+    def createWidgets( self ):
+        "Create initial widget set."
+
+        # Objects
+        title = Label( self, text='Bandwidth (Gb/s)', bg=self.bg )
+        width = self.gwidth
+        height = self.gheight
+        scale = self.createScale()
+        graph = Canvas( self, width=width, height=height, background=self.bg)
+        xbar = Scrollbar( self, orient='horizontal', command=graph.xview )
+        ybar = Scrollbar( self, orient='vertical', command=self.yview )
+        graph.configure( xscrollcommand=xbar.set, yscrollcommand=ybar.set,
+                         scrollregion=(0, 0, width, height ) )
+        scale.configure( yscrollcommand=ybar.set )
+
+        # Layout
+        title.grid( row=0, columnspan=3, sticky='new')
+        scale.grid( row=1, column=0, sticky='nsew' )
+        graph.grid( row=1, column=1, sticky='nsew' )
+        ybar.grid( row=1, column=2, sticky='ns' )
+        xbar.grid( row=2, column=0, columnspan=2, sticky='ew' )
+        self.rowconfigure( 1, weight=1 )
+        self.columnconfigure( 1, weight=1 )
+        return title, scale, graph
+
+    def addBar( self, yval ):
+        "Add a new bar to our graph."
+        percent = yval / self.ymax
+        c = self.graph
+        x0 = self.xpos * self.barwidth
+        x1 = x0 + self.barwidth
+        y0 = self.gheight
+        y1 = ( 1 - percent ) * self.gheight
+        c.create_rectangle( x0, y0, x1, y1, fill='green' )
+        self.xpos += 1
+        self.updateScrollRegions()
+        self.graph.xview( 'moveto', '1.0' )
+
+    def clear( self ):
+        "Clear graph contents."
+        self.graph.delete( 'all' )
+        self.xpos = 0
+
+    def test( self ):
+        "Add a bar for testing purposes."
+        ms = 1000
+        if self.xpos < 10:
+            self.addBar( self.xpos / 10 * self.ymax  )
+            self.after( ms, self.test )
+
+    def setTitle( self, text ):
+        "Set graph title"
+        self.title.configure( text=text, font='Helvetica 9 bold' )
+
+
+class ConsoleApp( Frame ):
+
+    "Simple Tk consoles for Mininet."
+
+    menuStyle = { 'font': 'Geneva 7 bold' }
+
+    def __init__( self, net, parent=None, width=4 ):
+        Frame.__init__( self, parent )
+        self.top = self.winfo_toplevel()
+        self.top.title( 'Mininet' )
+        self.net = net
+        self.menubar = self.createMenuBar()
+        cframe = self.cframe = Frame( self )
+        self.consoles = {}  # consoles themselves
+        titles = {
+            'hosts': 'Host',
+            'switches': 'Switch',
+            'controllers': 'Controller'
+        }
+        for name in titles:
+            nodes = getattr( net, name )
+            frame, consoles = self.createConsoles(
+                cframe, nodes, width, titles[ name ] )
+            self.consoles[ name ] = Object( frame=frame, consoles=consoles )
+        self.selected = None
+        self.select( 'hosts' )
+        self.cframe.pack( expand=True, fill='both' )
+        cleanUpScreens()
+        # Close window gracefully
+        Wm.wm_protocol( self.top, name='WM_DELETE_WINDOW', func=self.quit )
+
+        # Initialize graph
+        graph = Graph( cframe )
+        self.consoles[ 'graph' ] = Object( frame=graph, consoles=[ graph ] )
+        self.graph = graph
+        self.graphVisible = False
+        self.updates = 0
+        self.hostCount = len( self.consoles[ 'hosts' ].consoles )
+        self.bw = 0
+
+        self.pack( expand=True, fill='both' )
+
+    def updateGraph( self, _console, output ):
+        "Update our graph."
+        m = re.search( r'(\d+.?\d*) ([KMG]?bits)/sec', output )
+        if not m:
+            return
+        val, units = float( m.group( 1 ) ), m.group( 2 )
+        #convert to Gbps
+        if units[0] == 'M':
+            val *= 10 ** -3
+        elif units[0] == 'K':
+            val *= 10 ** -6
+        elif units[0] == 'b':
+            val *= 10 ** -9
+        self.updates += 1
+        self.bw += val
+        if self.updates >= self.hostCount:
+            self.graph.addBar( self.bw )
+            self.bw = 0
+            self.updates = 0
+
+    def setOutputHook( self, fn=None, consoles=None ):
+        "Register fn as output hook [on specific consoles.]"
+        if consoles is None:
+            consoles = self.consoles[ 'hosts' ].consoles
+        for console in consoles:
+            console.outputHook = fn
+
+    def createConsoles( self, parent, nodes, width, title ):
+        "Create a grid of consoles in a frame."
+        f = Frame( parent )
+        # Create consoles
+        consoles = []
+        index = 0
+        for node in nodes:
+            console = Console( f, self.net, node, title=title )
+            consoles.append( console )
+            row = index / width
+            column = index % width
+            console.grid( row=row, column=column, sticky='nsew' )
+            index += 1
+            f.rowconfigure( row, weight=1 )
+            f.columnconfigure( column, weight=1 )
+        return f, consoles
+
+    def select( self, groupName ):
+        "Select a group of consoles to display."
+        if self.selected is not None:
+            self.selected.frame.pack_forget()
+        self.selected = self.consoles[ groupName ]
+        self.selected.frame.pack( expand=True, fill='both' )
+
+    def createMenuBar( self ):
+        "Create and return a menu (really button) bar."
+        f = Frame( self )
+        buttons = [
+            ( 'Hosts', lambda: self.select( 'hosts' ) ),
+            ( 'Switches', lambda: self.select( 'switches' ) ),
+            ( 'Controllers', lambda: self.select( 'controllers' ) ),
+            ( 'Graph', lambda: self.select( 'graph' ) ),
+            ( 'Ping', self.ping ),
+            ( 'Iperf', self.iperf ),
+            ( 'Interrupt', self.stop ),
+            ( 'Clear', self.clear ),
+            ( 'Quit', self.quit )
+        ]
+        for name, cmd in buttons:
+            b = Button( f, text=name, command=cmd, **self.menuStyle )
+            b.pack( side='left' )
+        f.pack( padx=4, pady=4, fill='x' )
+        return f
+
+    def clear( self ):
+        "Clear selection."
+        for console in self.selected.consoles:
+            console.clear()
+
+    def waiting( self, consoles=None ):
+        "Are any of our hosts waiting for output?"
+        if consoles is None:
+            consoles = self.consoles[ 'hosts' ].consoles
+        for console in consoles:
+            if console.waiting():
+                return True
+        return False
+
+    def ping( self ):
+        "Tell each host to ping the next one."
+        consoles = self.consoles[ 'hosts' ].consoles
+        if self.waiting( consoles ):
+            return
+        count = len( consoles )
+        i = 0
+        for console in consoles:
+            i = ( i + 1 ) % count
+            ip = consoles[ i ].node.IP()
+            console.sendCmd( 'ping ' + ip )
+
+    def iperf( self ):
+        "Tell each host to iperf to the next one."
+        consoles = self.consoles[ 'hosts' ].consoles
+        if self.waiting( consoles ):
+            return
+        count = len( consoles )
+        self.setOutputHook( self.updateGraph )
+        for console in consoles:
+            # Sometimes iperf -sD doesn't return,
+            # so we run it in the background instead
+            console.node.cmd( 'iperf -s &' )
+        i = 0
+        for console in consoles:
+            i = ( i + 1 ) % count
+            ip = consoles[ i ].node.IP()
+            console.sendCmd( 'iperf -t 99999 -i 1 -c ' + ip )
+
+    def stop( self, wait=True ):
+        "Interrupt all hosts."
+        consoles = self.consoles[ 'hosts' ].consoles
+        for console in consoles:
+            console.handleInt()
+        if wait:
+            for console in consoles:
+                console.waitOutput()
+        self.setOutputHook( None )
+        # Shut down any iperfs that might still be running
+        quietRun( 'killall -9 iperf' )
+
+    def quit( self ):
+        "Stop everything and quit."
+        self.stop( wait=False)
+        Frame.quit( self )
+
+
+# Make it easier to construct and assign objects
+
+def assign( obj, **kwargs ):
+    "Set a bunch of fields in an object."
+    obj.__dict__.update( kwargs )
+
+class Object( object ):
+    "Generic object you can stuff junk into."
+    def __init__( self, **kwargs ):
+        assign( self, **kwargs )
+
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    network = TreeNet( depth=2, fanout=4 )
+    network.start()
+    app = ConsoleApp( network, width=4 )
+    app.mainloop()
+    network.stop()

examples/consumer-producer.py

@@ -1,70 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2021, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-from time import sleep
-
-from mininet.log import setLogLevel, info
-from minindn.minindn import Minindn
-from minindn.util import MiniNDNCLI
-from minindn.apps.app_manager import AppManager
-from minindn.apps.nfd import Nfd
-from minindn.apps.nlsr import Nlsr
-
-
-"""
-This example demonstrates a basic consumer-producer using Mini-NDN. It uses ndnpeek and ndnpoke as
-a consumer and a producer respectively. If you want to build your own consumer/producer program, you
-can take help from here: https://github.com/named-data/ndn-cxx/tree/master/examples and
-here: https://github.com/dulalsaurab/multicast-supression-ndn/tree/main/ndn-src/consumer-producer
-"""
-
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    Minindn.cleanUp()
-    Minindn.verifyDependencies()
-    ndn = Minindn()
-    ndn.start()
-
-    info('Starting nfd and nlsr on nodes')
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-    nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr)
-    sleep(90)
-
-    # Default topology is used in this experiment "/topologies/default-topology.conf"
-    # lets make node "a" as a producer node, and node "c" as a consumer node
-    producer = ndn.net['a']
-    consumer = ndn.net['c']
-
-    # start producer
-    producerPrefix = "/example"
-    producer.cmd('nlsrc advertise {}'.format(producerPrefix))
-    sleep(5) # sleep for routing convergence
-
-    # Make sure that basic consumer/producer example are compiled and installed in the system
-    info('Starting consumer and producer application')
-    producer.cmd("echo 'HELLO WORLD' | ndnpoke {} &> producer.log &".format(producerPrefix))
-    consumer.cmd("ndnpeek -p {} &> consumer.log &".format(producerPrefix))
-
-    MiniNDNCLI(ndn.net)
-    ndn.stop()

examples/controllers.py

@@ -0,0 +1,36 @@
+#!/usr/bin/python
+
+"""
+Create a network where different switches are connected to
+different controllers, by creating a custom Switch() subclass.
+"""
+
+from mininet.net import Mininet
+from mininet.node import OVSSwitch, Controller, RemoteController
+from mininet.topolib import TreeTopo
+from mininet.log import setLogLevel
+from mininet.cli import CLI
+
+setLogLevel( 'info' )
+
+# Two local and one "external" controller (which is actually c0)
+# Ignore the warning message that the remote isn't (yet) running
+c0 = Controller( 'c0', port=6633 )
+c1 = Controller( 'c1', port=6634 )
+c2 = RemoteController( 'c2', ip='127.0.0.1' )
+
+cmap = { 's1': c0, 's2': c1, 's3': c2 }
+
+class MultiSwitch( OVSSwitch ):
+    "Custom Switch() subclass that connects to different controllers"
+    def start( self, controllers ):
+        return OVSSwitch.start( self, [ cmap[ self.name ] ] )
+
+topo = TreeTopo( depth=2, fanout=2 )
+net = Mininet( topo=topo, switch=MultiSwitch, build=False )
+for c in [ c0, c1 ]:
+    net.addController(c)
+net.build()
+net.start()
+CLI( net )
+net.stop()

examples/controllers2.py

@@ -0,0 +1,61 @@
+#!/usr/bin/python
+
+"""
+This example creates a multi-controller network from semi-scratch by
+using the net.add*() API and manually starting the switches and controllers.
+
+This is the "mid-level" API, which is an alternative to the "high-level"
+Topo() API which supports parametrized topology classes.
+
+Note that one could also create a custom switch class and pass it into
+the Mininet() constructor.
+"""
+
+from mininet.net import Mininet
+from mininet.node import Controller, OVSSwitch
+from mininet.cli import CLI
+from mininet.log import setLogLevel
+
+def multiControllerNet():
+    "Create a network from semi-scratch with multiple controllers."
+
+    net = Mininet( controller=Controller, switch=OVSSwitch )
+
+    print "*** Creating (reference) controllers"
+    c1 = net.addController( 'c1', port=6633 )
+    c2 = net.addController( 'c2', port=6634 )
+
+    print "*** Creating switches"
+    s1 = net.addSwitch( 's1' )
+    s2 = net.addSwitch( 's2' )
+
+    print "*** Creating hosts"
+    hosts1 = [ net.addHost( 'h%d' % n ) for n in 3, 4 ]
+    hosts2 = [ net.addHost( 'h%d' % n ) for n in 5, 6 ]
+
+    print "*** Creating links"
+    for h in hosts1:
+        net.addLink( s1, h )
+    for h in hosts2:
+        net.addLink( s2, h )
+    net.addLink( s1, s2 )
+
+    print "*** Starting network"
+    net.build()
+    c1.start()
+    c2.start()
+    s1.start( [ c1 ] )
+    s2.start( [ c2 ] )
+
+    print "*** Testing network"
+    net.pingAll()
+
+    print "*** Running CLI"
+    CLI( net )
+
+    print "*** Stopping network"
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )  # for CLI output
+    multiControllerNet()

examples/controlnet.py

@@ -0,0 +1,158 @@
+#!/usr/bin/python
+
+"""
+controlnet.py: Mininet with a custom control network
+
+We create two Mininet() networks, a control network
+and a data network, running four DataControllers on the
+control network to control the data network.
+
+Since we're using UserSwitch on the data network,
+it should correctly fail over to a backup controller.
+
+We also use a Mininet Facade to talk to both the
+control and data networks from a single CLI.
+"""
+
+from functools import partial
+
+from mininet.net import Mininet
+from mininet.node import Controller, UserSwitch
+from mininet.cli import CLI
+from mininet.topo import Topo
+from mininet.topolib import TreeTopo
+from mininet.log import setLogLevel, info
+
+# Some minor hacks
+
+class DataController( Controller ):
+    """Data Network Controller.
+       patched to avoid checkListening error and to delete intfs"""
+
+    def checkListening( self ):
+        "Ignore spurious error"
+        pass
+
+    def stop( self, *args, **kwargs ):
+        "Make sure intfs are deleted"
+        kwargs.update( deleteIntfs=True )
+        super( DataController, self ).stop( *args, **kwargs )
+
+
+class MininetFacade( object ):
+    """Mininet object facade that allows a single CLI to
+       talk to one or more networks"""
+
+    def __init__( self, net, *args, **kwargs ):
+        """Create MininetFacade object.
+           net: Primary Mininet object
+           args: unnamed networks passed as arguments
+           kwargs: named networks passed as arguments"""
+        self.net = net
+        self.nets = [ net ] + list( args ) + kwargs.values()
+        self.nameToNet = kwargs
+        self.nameToNet['net'] = net
+
+    def __getattr__( self, name ):
+        "returns attribute from Primary Mininet object"
+        return getattr( self.net, name )
+
+    def __getitem__( self, key ):
+        "returns primary/named networks or node from any net"
+        #search kwargs for net named key
+        if key in self.nameToNet:
+            return self.nameToNet[ key ]
+        #search each net for node named key
+        for net in self.nets:
+            if key in net:
+                return net[ key ]
+
+    def __iter__( self ):
+        "Iterate through all nodes in all Mininet objects"
+        for net in self.nets:
+            for node in net:
+                yield node
+
+    def __len__( self ):
+        "returns aggregate number of nodes in all nets"
+        count = 0
+        for net in self.nets:
+            count += len(net)
+        return count
+
+    def __contains__( self, key ):
+        "returns True if node is a member of any net"
+        return key in self.keys()
+
+    def keys( self ):
+        "returns a list of all node names in all networks"
+        return list( self )
+
+    def values( self ):
+        "returns a list of all nodes in all networks"
+        return [ self[ key ] for key in self ]
+
+    def items( self ):
+        "returns (key,value) tuple list for every node in all networks"
+        return zip( self.keys(), self.values() )
+
+# A real control network!
+
+class ControlNetwork( Topo ):
+    "Control Network Topology"
+    def __init__( self, n, dataController=DataController, **kwargs ):
+        """n: number of data network controller nodes
+           dataController: class for data network controllers"""
+        Topo.__init__( self, **kwargs )
+        # Connect everything to a single switch
+        cs0 = self.addSwitch( 'cs0' )
+        # Add hosts which will serve as data network controllers
+        for i in range( 0, n ):
+            c = self.addHost( 'c%s' % i, cls=dataController,
+                              inNamespace=True )
+            self.addLink( c, cs0 )
+        # Connect switch to root namespace so that data network
+        # switches will be able to talk to us
+        root = self.addHost( 'root', inNamespace=False )
+        self.addLink( root, cs0 )
+
+
+# Make it Happen!!
+
+def run():
+    "Create control and data networks, and invoke the CLI"
+
+    info( '* Creating Control Network\n' )
+    ctopo = ControlNetwork( n=4, dataController=DataController )
+    cnet = Mininet( topo=ctopo, ipBase='192.168.123.0/24', controller=None )
+    info( '* Adding Control Network Controller\n')
+    cnet.addController( 'cc0', controller=Controller )
+    info( '* Starting Control Network\n')
+    cnet.start()
+
+    info( '* Creating Data Network\n' )
+    topo = TreeTopo( depth=2, fanout=2 )
+    # UserSwitch so we can easily test failover
+    sw = partial( UserSwitch, opts='--inactivity-probe=1 --max-backoff=1' )
+    net = Mininet( topo=topo, switch=sw, controller=None )
+    info( '* Adding Controllers to Data Network\n' )
+    for host in cnet.hosts:
+        if isinstance(host, Controller):
+            net.addController( host )
+    info( '* Starting Data Network\n')
+    net.start()
+
+    mn = MininetFacade( net, cnet=cnet )
+
+    CLI( mn )
+
+    info( '* Stopping Data Network\n' )
+    net.stop()
+
+    info( '* Stopping Control Network\n' )
+    cnet.stop()
+
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    run()

examples/cpu.py

@@ -0,0 +1,73 @@
+#!/usr/bin/python
+
+"""
+cpu.py: test iperf bandwidth for varying cpu limits
+"""
+
+from mininet.net import Mininet
+from mininet.node import CPULimitedHost
+from mininet.topolib import TreeTopo
+from mininet.util import custom, waitListening
+from mininet.log import setLogLevel, info
+
+
+def bwtest( cpuLimits, period_us=100000, seconds=5 ):
+    """Example/test of link and CPU bandwidth limits
+       cpu: cpu limit as fraction of overall CPU time"""
+
+    topo = TreeTopo( depth=1, fanout=2 )
+
+    results = {}
+
+    for sched in 'rt', 'cfs':
+        print '*** Testing with', sched, 'bandwidth limiting'
+        for cpu in cpuLimits:
+            host = custom( CPULimitedHost, sched=sched,
+                           period_us=period_us,
+                           cpu=cpu )
+            try:
+                net = Mininet( topo=topo, host=host )
+            # pylint: disable=bare-except
+            except:
+                info( '*** Skipping host %s\n' % sched )
+                break
+            net.start()
+            net.pingAll()
+            hosts = [ net.getNodeByName( h ) for h in topo.hosts() ]
+            client, server = hosts[ 0 ], hosts[ -1 ]
+            server.cmd( 'iperf -s -p 5001 &' )
+            waitListening( client, server, 5001 )
+            result = client.cmd( 'iperf -yc -t %s -c %s' % (
+                seconds, server.IP() ) ).split( ',' )
+            bps = float( result[ -1 ] )
+            server.cmdPrint( 'kill %iperf' )
+            net.stop()
+            updated = results.get( sched, [] )
+            updated += [ ( cpu, bps ) ]
+            results[ sched ] = updated
+
+    return results
+
+
+def dump( results ):
+    "Dump results"
+
+    fmt = '%s\t%s\t%s'
+
+    print
+    print fmt % ( 'sched', 'cpu', 'client MB/s' )
+    print
+
+    for sched in sorted( results.keys() ):
+        entries = results[ sched ]
+        for cpu, bps in entries:
+            pct = '%.2f%%' % ( cpu * 100 )
+            mbps = bps / 1e6
+            print fmt % ( sched, pct, mbps )
+
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    limits = [ .45, .4, .3, .2, .1 ]
+    out = bwtest( limits )
+    dump( out )

examples/emptynet.py

@@ -0,0 +1,44 @@
+#!/usr/bin/python
+
+"""
+This example shows how to create an empty Mininet object
+(without a topology object) and add nodes to it manually.
+"""
+
+from mininet.net import Mininet
+from mininet.node import Controller
+from mininet.cli import CLI
+from mininet.log import setLogLevel, info
+
+def emptyNet():
+
+    "Create an empty network and add nodes to it."
+
+    net = Mininet( controller=Controller )
+
+    info( '*** Adding controller\n' )
+    net.addController( 'c0' )
+
+    info( '*** Adding hosts\n' )
+    h1 = net.addHost( 'h1', ip='10.0.0.1' )
+    h2 = net.addHost( 'h2', ip='10.0.0.2' )
+
+    info( '*** Adding switch\n' )
+    s3 = net.addSwitch( 's3' )
+
+    info( '*** Creating links\n' )
+    net.addLink( h1, s3 )
+    net.addLink( h2, s3 )
+
+    info( '*** Starting network\n')
+    net.start()
+
+    info( '*** Running CLI\n' )
+    CLI( net )
+
+    info( '*** Stopping network' )
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    emptyNet()

examples/hwintf.py

@@ -0,0 +1,52 @@
+#!/usr/bin/python
+
+"""
+This example shows how to add an interface (for example a real
+hardware interface) to a network after the network is created.
+"""
+
+import re
+import sys
+
+from mininet.cli import CLI
+from mininet.log import setLogLevel, info, error
+from mininet.net import Mininet
+from mininet.link import Intf
+from mininet.topolib import TreeTopo
+from mininet.util import quietRun
+
+def checkIntf( intf ):
+    "Make sure intf exists and is not configured."
+    if ( ' %s:' % intf ) not in quietRun( 'ip link show' ):
+        error( 'Error:', intf, 'does not exist!\n' )
+        exit( 1 )
+    ips = re.findall( r'\d+\.\d+\.\d+\.\d+', quietRun( 'ifconfig ' + intf ) )
+    if ips:
+        error( 'Error:', intf, 'has an IP address,'
+               'and is probably in use!\n' )
+        exit( 1 )
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+
+    # try to get hw intf from the command line; by default, use eth1
+    intfName = sys.argv[ 1 ] if len( sys.argv ) > 1 else 'eth1'
+    info( '*** Connecting to hw intf: %s' % intfName )
+
+    info( '*** Checking', intfName, '\n' )
+    checkIntf( intfName )
+
+    info( '*** Creating network\n' )
+    net = Mininet( topo=TreeTopo( depth=1, fanout=2 ) )
+
+    switch = net.switches[ 0 ]
+    info( '*** Adding hardware interface', intfName, 'to switch',
+          switch.name, '\n' )
+    _intf = Intf( intfName, node=switch )
+
+    info( '*** Note: you may need to reconfigure the interfaces for '
+          'the Mininet hosts:\n', net.hosts, '\n' )
+
+    net.start()
+    CLI( net )
+    net.stop()

examples/intfoptions.py

@@ -0,0 +1,48 @@
+#!/usr/bin/python
+
+'''
+example of using various TCIntf options.
+reconfigures a single interface using intf.config()
+to use different traffic control commands to test
+bandwidth, loss, and delay
+'''
+
+from mininet.net import Mininet
+from mininet.log import setLogLevel, info
+from mininet.link import TCLink
+
+def intfOptions():
+    "run various traffic control commands on a single interface"
+    net = Mininet( autoStaticArp=True )
+    net.addController( 'c0' )
+    h1 = net.addHost( 'h1' )
+    h2 = net.addHost( 'h2' )
+    s1 = net.addSwitch( 's1' )
+    link1 = net.addLink( h1, s1, cls=TCLink )
+    net.addLink( h2, s1 )
+    net.start()
+
+    # flush out latency from reactive forwarding delay
+    net.pingAll()
+
+    info( '\n*** Configuring one intf with bandwidth of 5 Mb\n' )
+    link1.intf1.config( bw=5 )
+    info( '\n*** Running iperf to test\n' )
+    net.iperf()
+
+    info( '\n*** Configuring one intf with loss of 50%\n' )
+    link1.intf1.config( loss=50 )
+    info( '\n' )
+    net.iperf( ( h1, h2 ), l4Type='UDP' )
+
+    info( '\n*** Configuring one intf with delay of 15ms\n' )
+    link1.intf1.config( delay='15ms' )
+    info( '\n*** Run a ping to confirm delay\n' )
+    net.pingPairFull()
+
+    info( '\n*** Done testing\n' )
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    intfOptions()

examples/ip_rounting_experiment.py

@@ -1,62 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2020, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-from mininet.log import setLogLevel, info
-
-from minindn.minindn import Minindn
-from minindn.apps.app_manager import AppManager
-from minindn.apps.nfd import Nfd
-from minindn.apps.nlsr import Nlsr
-from minindn.helpers.ip_routing_helper import IPRoutingHelper
-
-"""
-This scenario demonstrates the functionality of the IPRoutingHelper. First, the routing helper
-calculates and configures routes between all nodes and then calls the `pingAll` command to
-demonstrate that all nodes are reachable.
-Successful experiments end with: `*** Results: 0% dropped`
-
-To demonstrate the IPRoutingHelper in more complex scenarios, consider starting the experiment with
-the Geant-Topology (topologies/geant.conf).
-"""
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    Minindn.cleanUp()
-    Minindn.verifyDependencies()
-
-    ndn = Minindn()
-
-    ndn.start()
-
-    info('Starting NFD on nodes\n')
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-    info('Starting NLSR on nodes\n')
-    nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr)
-
-    # Calculate all routes for IP routing
-    IPRoutingHelper.calcAllRoutes(ndn.net)
-    info("IP routes configured, start ping\n")
-
-    ndn.net.pingAll()
-
-    ndn.stop()

examples/limit.py

@@ -0,0 +1,60 @@
+#!/usr/bin/python
+
+"""
+limit.py: example of using link and CPU limits
+"""
+
+from mininet.net import Mininet
+from mininet.link import TCIntf
+from mininet.node import CPULimitedHost
+from mininet.topolib import TreeTopo
+from mininet.util import custom, quietRun
+from mininet.log import setLogLevel, info
+
+
+def testLinkLimit( net, bw ):
+    "Run bandwidth limit test"
+    info( '*** Testing network %.2f Mbps bandwidth limit\n' % bw )
+    net.iperf()
+
+def limit( bw=10, cpu=.1 ):
+    """Example/test of link and CPU bandwidth limits
+       bw: interface bandwidth limit in Mbps
+       cpu: cpu limit as fraction of overall CPU time"""
+    intf = custom( TCIntf, bw=bw )
+    myTopo = TreeTopo( depth=1, fanout=2 )
+    for sched in 'rt', 'cfs':
+        info( '*** Testing with', sched, 'bandwidth limiting\n' )
+        if sched == 'rt':
+            release = quietRun( 'uname -r' ).strip('\r\n')
+            output = quietRun( 'grep CONFIG_RT_GROUP_SCHED /boot/config-%s'
+                               % release )
+            if output == '# CONFIG_RT_GROUP_SCHED is not set\n':
+                info( '*** RT Scheduler is not enabled in your kernel. '
+                      'Skipping this test\n' )
+                continue
+        host = custom( CPULimitedHost, sched=sched, cpu=cpu )
+        net = Mininet( topo=myTopo, intf=intf, host=host )
+        net.start()
+        testLinkLimit( net, bw=bw )
+        net.runCpuLimitTest( cpu=cpu )
+        net.stop()
+
+def verySimpleLimit( bw=150 ):
+    "Absurdly simple limiting test"
+    intf = custom( TCIntf, bw=bw )
+    net = Mininet( intf=intf )
+    h1, h2 = net.addHost( 'h1' ), net.addHost( 'h2' )
+    net.addLink( h1, h2 )
+    net.start()
+    net.pingAll()
+    net.iperf()
+    h1.cmdPrint( 'tc -s qdisc ls dev', h1.defaultIntf() )
+    h2.cmdPrint( 'tc -d class show dev', h2.defaultIntf() )
+    h1.cmdPrint( 'tc -s qdisc ls dev', h1.defaultIntf() )
+    h2.cmdPrint( 'tc -d class show dev', h2.defaultIntf() )
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    limit()

examples/linearbandwidth.py

@@ -0,0 +1,126 @@
+#!/usr/bin/python
+
+"""
+Test bandwidth (using iperf) on linear networks of varying size,
+using both kernel and user datapaths.
+
+We construct a network of N hosts and N-1 switches, connected as follows:
+
+h1 <-> s1 <-> s2 .. sN-1
+       |       |    |
+       h2      h3   hN
+
+WARNING: by default, the reference controller only supports 16
+switches, so this test WILL NOT WORK unless you have recompiled
+your controller to support 100 switches (or more.)
+
+In addition to testing the bandwidth across varying numbers
+of switches, this example demonstrates:
+
+- creating a custom topology, LinearTestTopo
+- using the ping() and iperf() tests from Mininet()
+- testing both the kernel and user switches
+
+"""
+
+from mininet.net import Mininet
+from mininet.node import UserSwitch, OVSKernelSwitch, Controller
+from mininet.topo import Topo
+from mininet.log import lg
+from mininet.util import irange, quietRun
+from mininet.link import TCLink
+from functools import partial
+
+import sys
+flush = sys.stdout.flush
+
+class LinearTestTopo( Topo ):
+    "Topology for a string of N hosts and N-1 switches."
+
+    def __init__( self, N, **params ):
+
+        # Initialize topology
+        Topo.__init__( self, **params )
+
+        # Create switches and hosts
+        hosts = [ self.addHost( 'h%s' % h )
+                  for h in irange( 1, N ) ]
+        switches = [ self.addSwitch( 's%s' % s )
+                     for s in irange( 1, N - 1 ) ]
+
+        # Wire up switches
+        last = None
+        for switch in switches:
+            if last:
+                self.addLink( last, switch )
+            last = switch
+
+        # Wire up hosts
+        self.addLink( hosts[ 0 ], switches[ 0 ] )
+        for host, switch in zip( hosts[ 1: ], switches ):
+            self.addLink( host, switch )
+
+
+def linearBandwidthTest( lengths ):
+
+    "Check bandwidth at various lengths along a switch chain."
+
+    results = {}
+    switchCount = max( lengths )
+    hostCount = switchCount + 1
+
+    switches = { 'reference user': UserSwitch,
+                 'Open vSwitch kernel': OVSKernelSwitch }
+
+    # UserSwitch is horribly slow with recent kernels.
+    # We can reinstate it once its performance is fixed
+    del switches[ 'reference user' ]
+
+    topo = LinearTestTopo( hostCount )
+
+    # Select TCP Reno
+    output = quietRun( 'sysctl -w net.ipv4.tcp_congestion_control=reno' )
+    assert 'reno' in output
+
+    for datapath in switches.keys():
+        print "*** testing", datapath, "datapath"
+        Switch = switches[ datapath ]
+        results[ datapath ] = []
+        link = partial( TCLink, delay='1ms' )
+        net = Mininet( topo=topo, switch=Switch,
+                       controller=Controller, waitConnected=True,
+                       link=link )
+        net.start()
+        print "*** testing basic connectivity"
+        for n in lengths:
+            net.ping( [ net.hosts[ 0 ], net.hosts[ n ] ] )
+        print "*** testing bandwidth"
+        for n in lengths:
+            src, dst = net.hosts[ 0 ], net.hosts[ n ]
+            # Try to prime the pump to reduce PACKET_INs during test
+            # since the reference controller is reactive
+            src.cmd( 'telnet', dst.IP(), '5001' )
+            print "testing", src.name, "<->", dst.name,
+            bandwidth = net.iperf( [ src, dst ], seconds=10 )
+            print bandwidth
+            flush()
+            results[ datapath ] += [ ( n, bandwidth ) ]
+        net.stop()
+
+    for datapath in switches.keys():
+        print
+        print "*** Linear network results for", datapath, "datapath:"
+        print
+        result = results[ datapath ]
+        print "SwitchCount\tiperf Results"
+        for switchCount, bandwidth in result:
+            print switchCount, '\t\t',
+            print bandwidth[ 0 ], 'server, ', bandwidth[ 1 ], 'client'
+        print
+    print
+
+if __name__ == '__main__':
+    lg.setLogLevel( 'info' )
+    sizes = [ 1, 10, 20, 40, 60, 80, 100 ]
+    print "*** Running linearBandwidthTest", sizes
+    linearBandwidthTest( sizes  )

examples/linuxrouter.py

@@ -0,0 +1,89 @@
+#!/usr/bin/python
+
+"""
+linuxrouter.py: Example network with Linux IP router
+
+This example converts a Node into a router using IP forwarding
+already built into Linux.
+
+The example topology creates a router and three IP subnets:
+
+    - 192.168.1.0/24 (r0-eth1, IP: 192.168.1.1)
+    - 172.16.0.0/12 (r0-eth2, IP: 172.16.0.1)
+    - 10.0.0.0/8 (r0-eth3, IP: 10.0.0.1)
+
+Each subnet consists of a single host connected to
+a single switch:
+
+    r0-eth1 - s1-eth1 - h1-eth0 (IP: 192.168.1.100)
+    r0-eth2 - s2-eth1 - h2-eth0 (IP: 172.16.0.100)
+    r0-eth3 - s3-eth1 - h3-eth0 (IP: 10.0.0.100)
+
+The example relies on default routing entries that are
+automatically created for each router interface, as well
+as 'defaultRoute' parameters for the host interfaces.
+
+Additional routes may be added to the router or hosts by
+executing 'ip route' or 'route' commands on the router or hosts.
+"""
+
+from mininet.topo import Topo
+from mininet.net import Mininet
+from mininet.node import Node
+from mininet.log import setLogLevel, info
+from mininet.cli import CLI
+
+class LinuxRouter( Node ):
+    "A Node with IP forwarding enabled."
+
+    def config( self, **params ):
+        super( LinuxRouter, self).config( **params )
+        # Enable forwarding on the router
+        self.cmd( 'sysctl net.ipv4.ip_forward=1' )
+
+    def terminate( self ):
+        self.cmd( 'sysctl net.ipv4.ip_forward=0' )
+        super( LinuxRouter, self ).terminate()
+
+
+class NetworkTopo( Topo ):
+    "A LinuxRouter connecting three IP subnets"
+
+    def build( self, **_opts ):
+
+        defaultIP = '192.168.1.1/24'  # IP address for r0-eth1
+        router = self.addNode( 'r0', cls=LinuxRouter, ip=defaultIP )
+
+        s1, s2, s3 = [ self.addSwitch( s ) for s in 's1', 's2', 's3' ]
+
+        self.addLink( s1, router, intfName2='r0-eth1',
+                      params2={ 'ip' : defaultIP } )  # for clarity
+        self.addLink( s2, router, intfName2='r0-eth2',
+                      params2={ 'ip' : '172.16.0.1/12' } )
+        self.addLink( s3, router, intfName2='r0-eth3',
+                      params2={ 'ip' : '10.0.0.1/8' } )
+
+        h1 = self.addHost( 'h1', ip='192.168.1.100/24',
+                           defaultRoute='via 192.168.1.1' )
+        h2 = self.addHost( 'h2', ip='172.16.0.100/12',
+                           defaultRoute='via 172.16.0.1' )
+        h3 = self.addHost( 'h3', ip='10.0.0.100/8',
+                           defaultRoute='via 10.0.0.1' )
+
+        for h, s in [ (h1, s1), (h2, s2), (h3, s3) ]:
+            self.addLink( h, s )
+
+
+def run():
+    "Test linux router"
+    topo = NetworkTopo()
+    net = Mininet( topo=topo )  # controller is used by s1-s3
+    net.start()
+    info( '*** Routing Table on Router:\n' )
+    print net[ 'r0' ].cmd( 'route' )
+    CLI( net )
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    run()

examples/mnndn.py

@@ -1,49 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2020, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-from mininet.log import setLogLevel, info
-
-from minindn.minindn import Minindn
-from minindn.util import MiniNDNCLI
-from minindn.apps.app_manager import AppManager
-from minindn.apps.nfd import Nfd
-from minindn.apps.nlsr import Nlsr
-
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    Minindn.cleanUp()
-    Minindn.verifyDependencies()
-
-    ndn = Minindn()
-
-    ndn.start()
-
-    info('Starting NFD on nodes\n')
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-    info('Starting NLSR on nodes\n')
-    nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr)
-
-    MiniNDNCLI(ndn.net)
-
-    ndn.stop()

examples/mobility.py

@@ -0,0 +1,134 @@
+#!/usr/bin/python
+
+"""
+Simple example of Mobility with Mininet
+(aka enough rope to hang yourself.)
+
+We move a host from s1 to s2, s2 to s3, and then back to s1.
+
+Gotchas:
+
+The reference controller doesn't support mobility, so we need to
+manually flush the switch flow tables!
+
+Good luck!
+
+to-do:
+
+- think about wifi/hub behavior
+- think about clearing last hop - why doesn't that work?
+"""
+
+from mininet.net import Mininet
+from mininet.node import OVSSwitch
+from mininet.topo import LinearTopo
+from mininet.log import output, warn
+
+from random import randint
+
+
+class MobilitySwitch( OVSSwitch ):
+    "Switch that can reattach and rename interfaces"
+
+    def delIntf( self, intf ):
+        "Remove (and detach) an interface"
+        port = self.ports[ intf ]
+        del self.ports[ intf ]
+        del self.intfs[ port ]
+        del self.nameToIntf[ intf.name ]
+
+    def addIntf( self, intf, rename=False, **kwargs ):
+        "Add (and reparent) an interface"
+        OVSSwitch.addIntf( self, intf, **kwargs )
+        intf.node = self
+        if rename:
+            self.renameIntf( intf )
+
+    def attach( self, intf ):
+        "Attach an interface and set its port"
+        port = self.ports[ intf ]
+        if port:
+            if self.isOldOVS():
+                self.cmd( 'ovs-vsctl add-port', self, intf )
+            else:
+                self.cmd( 'ovs-vsctl add-port', self, intf,
+                          '-- set Interface', intf,
+                          'ofport_request=%s' % port )
+            self.validatePort( intf )
+
+    def validatePort( self, intf ):
+        "Validate intf's OF port number"
+        ofport = int( self.cmd( 'ovs-vsctl get Interface', intf,
+                                'ofport' ) )
+        if ofport != self.ports[ intf ]:
+            warn( 'WARNING: ofport for', intf, 'is actually', ofport,
+                  '\n' )
+
+    def renameIntf( self, intf, newname='' ):
+        "Rename an interface (to its canonical name)"
+        intf.ifconfig( 'down' )
+        if not newname:
+            newname = '%s-eth%d' % ( self.name, self.ports[ intf ] )
+        intf.cmd( 'ip link set', intf, 'name', newname )
+        del self.nameToIntf[ intf.name ]
+        intf.name = newname
+        self.nameToIntf[ intf.name ] = intf
+        intf.ifconfig( 'up' )
+
+    def moveIntf( self, intf, switch, port=None, rename=True ):
+        "Move one of our interfaces to another switch"
+        self.detach( intf )
+        self.delIntf( intf )
+        switch.addIntf( intf, port=port, rename=rename )
+        switch.attach( intf )
+
+
+def printConnections( switches ):
+    "Compactly print connected nodes to each switch"
+    for sw in switches:
+        output( '%s: ' % sw )
+        for intf in sw.intfList():
+            link = intf.link
+            if link:
+                intf1, intf2 = link.intf1, link.intf2
+                remote = intf1 if intf1.node != sw else intf2
+                output( '%s(%s) ' % ( remote.node, sw.ports[ intf ] ) )
+        output( '\n' )
+
+
+def moveHost( host, oldSwitch, newSwitch, newPort=None ):
+    "Move a host from old switch to new switch"
+    hintf, sintf = host.connectionsTo( oldSwitch )[ 0 ]
+    oldSwitch.moveIntf( sintf, newSwitch, port=newPort )
+    return hintf, sintf
+
+
+def mobilityTest():
+    "A simple test of mobility"
+    print '* Simple mobility test'
+    net = Mininet( topo=LinearTopo( 3 ), switch=MobilitySwitch )
+    print '* Starting network:'
+    net.start()
+    printConnections( net.switches )
+    print '* Testing network'
+    net.pingAll()
+    print '* Identifying switch interface for h1'
+    h1, old = net.get( 'h1', 's1' )
+    for s in 2, 3, 1:
+        new = net[ 's%d' % s ]
+        port = randint( 10, 20 )
+        print '* Moving', h1, 'from', old, 'to', new, 'port', port
+        hintf, sintf = moveHost( h1, old, new, newPort=port )
+        print '*', hintf, 'is now connected to', sintf
+        print '* Clearing out old flows'
+        for sw in net.switches:
+            sw.dpctl( 'del-flows' )
+        print '* New network:'
+        printConnections( net.switches )
+        print '* Testing connectivity:'
+        net.pingAll()
+        old = new
+    net.stop()
+
+if __name__ == '__main__':
+    mobilityTest()

examples/multilink.py

@@ -0,0 +1,36 @@
+#!/usr/bin/python
+
+"""
+This is a simple example that demonstrates multiple links
+between nodes.
+"""
+
+from mininet.cli import CLI
+from mininet.log import setLogLevel
+from mininet.net import Mininet
+from mininet.topo import Topo
+
+def runMultiLink():
+    "Create and run multiple link network"
+    topo = simpleMultiLinkTopo( n=2 )
+    net = Mininet( topo=topo )
+    net.start()
+    CLI( net )
+    net.stop()
+
+class simpleMultiLinkTopo( Topo ):
+    "Simple topology with multiple links"
+
+    def __init__( self, n, **kwargs ):
+        Topo.__init__( self, **kwargs )
+
+        h1, h2 = self.addHost( 'h1' ), self.addHost( 'h2' )
+        s1 = self.addSwitch( 's1' )
+
+        for _ in range( n ):
+            self.addLink( s1, h1 )
+            self.addLink( s1, h2 )
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    runMultiLink()

examples/multiping.py

@@ -0,0 +1,83 @@
+#!/usr/bin/python
+
+"""
+multiping.py: monitor multiple sets of hosts using ping
+
+This demonstrates how one may send a simple shell script to
+multiple hosts and monitor their output interactively for a period=
+of time.
+"""
+
+from mininet.net import Mininet
+from mininet.node import Node
+from mininet.topo import SingleSwitchTopo
+from mininet.log import setLogLevel
+
+from select import poll, POLLIN
+from time import time
+
+def chunks( l, n ):
+    "Divide list l into chunks of size n - thanks Stackoverflow"
+    return [ l[ i: i + n ] for i in range( 0, len( l ), n ) ]
+
+def startpings( host, targetips ):
+    "Tell host to repeatedly ping targets"
+
+    targetips = ' '.join( targetips )
+
+    # Simple ping loop
+    cmd = ( 'while true; do '
+            ' for ip in %s; do ' % targetips +
+            '  echo -n %s "->" $ip ' % host.IP() +
+            '   `ping -c1 -w 1 $ip | grep packets` ;'
+            '  sleep 1;'
+            ' done; '
+            'done &' )
+
+    print ( '*** Host %s (%s) will be pinging ips: %s' %
+            ( host.name, host.IP(), targetips ) )
+
+    host.cmd( cmd )
+
+def multiping( netsize, chunksize, seconds):
+    "Ping subsets of size chunksize in net of size netsize"
+
+    # Create network and identify subnets
+    topo = SingleSwitchTopo( netsize )
+    net = Mininet( topo=topo )
+    net.start()
+    hosts = net.hosts
+    subnets = chunks( hosts, chunksize )
+
+    # Create polling object
+    fds = [ host.stdout.fileno() for host in hosts ]
+    poller = poll()
+    for fd in fds:
+        poller.register( fd, POLLIN )
+
+    # Start pings
+    for subnet in subnets:
+        ips = [ host.IP() for host in subnet ]
+        #adding bogus to generate packet loss
+        ips.append( '10.0.0.200' )
+        for host in subnet:
+            startpings( host, ips )
+
+    # Monitor output
+    endTime = time() + seconds
+    while time() < endTime:
+        readable = poller.poll(1000)
+        for fd, _mask in readable:
+            node = Node.outToNode[ fd ]
+            print '%s:' % node.name, node.monitor().strip()
+
+    # Stop pings
+    for host in hosts:
+        host.cmd( 'kill %while' )
+
+    net.stop()
+
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    multiping( netsize=20, chunksize=4, seconds=10 )

examples/multipoll.py

@@ -0,0 +1,81 @@
+#!/usr/bin/python
+
+"""
+Simple example of sending output to multiple files and
+monitoring them
+"""
+
+from mininet.topo import SingleSwitchTopo
+from mininet.net import Mininet
+from mininet.log import setLogLevel
+
+from time import time
+from select import poll, POLLIN
+from subprocess import Popen, PIPE
+
+def monitorFiles( outfiles, seconds, timeoutms ):
+    "Monitor set of files and return [(host, line)...]"
+    devnull = open( '/dev/null', 'w' )
+    tails, fdToFile, fdToHost = {}, {}, {}
+    for h, outfile in outfiles.iteritems():
+        tail = Popen( [ 'tail', '-f', outfile ],
+                      stdout=PIPE, stderr=devnull )
+        fd = tail.stdout.fileno()
+        tails[ h ] = tail
+        fdToFile[ fd ] = tail.stdout
+        fdToHost[ fd ] = h
+    # Prepare to poll output files
+    readable = poll()
+    for t in tails.values():
+        readable.register( t.stdout.fileno(), POLLIN )
+    # Run until a set number of seconds have elapsed
+    endTime = time() + seconds
+    while time() < endTime:
+        fdlist = readable.poll(timeoutms)
+        if fdlist:
+            for fd, _flags in fdlist:
+                f = fdToFile[ fd ]
+                host = fdToHost[ fd ]
+                # Wait for a line of output
+                line = f.readline().strip()
+                yield host, line
+        else:
+            # If we timed out, return nothing
+            yield None, ''
+    for t in tails.values():
+        t.terminate()
+    devnull.close()  # Not really necessary
+
+
+def monitorTest( N=3, seconds=3 ):
+    "Run pings and monitor multiple hosts"
+    topo = SingleSwitchTopo( N )
+    net = Mininet( topo )
+    net.start()
+    hosts = net.hosts
+    print "Starting test..."
+    server = hosts[ 0 ]
+    outfiles, errfiles = {}, {}
+    for h in hosts:
+        # Create and/or erase output files
+        outfiles[ h ] = '/tmp/%s.out' % h.name
+        errfiles[ h ] = '/tmp/%s.err' % h.name
+        h.cmd( 'echo >', outfiles[ h ] )
+        h.cmd( 'echo >', errfiles[ h ] )
+        # Start pings
+        h.cmdPrint('ping', server.IP(),
+                   '>', outfiles[ h ],
+                   '2>', errfiles[ h ],
+                   '&' )
+    print "Monitoring output for", seconds, "seconds"
+    for h, line in monitorFiles( outfiles, seconds, timeoutms=500 ):
+        if h:
+            print '%s: %s' % ( h.name, line )
+    for h in hosts:
+        h.cmd('kill %ping')
+    net.stop()
+
+
+if __name__ == '__main__':
+    setLogLevel('info')
+    monitorTest()

examples/multitest.py

@@ -0,0 +1,35 @@
+#!/usr/bin/python
+
+"""
+This example shows how to create a network and run multiple tests.
+For a more complicated test example, see udpbwtest.py.
+"""
+
+from mininet.cli import CLI
+from mininet.log import lg, info
+from mininet.net import Mininet
+from mininet.node import OVSKernelSwitch
+from mininet.topolib import TreeTopo
+
+def ifconfigTest( net ):
+    "Run ifconfig on all hosts in net."
+    hosts = net.hosts
+    for host in hosts:
+        info( host.cmd( 'ifconfig' ) )
+
+if __name__ == '__main__':
+    lg.setLogLevel( 'info' )
+    info( "*** Initializing Mininet and kernel modules\n" )
+    OVSKernelSwitch.setup()
+    info( "*** Creating network\n" )
+    network = Mininet( TreeTopo( depth=2, fanout=2 ), switch=OVSKernelSwitch )
+    info( "*** Starting network\n" )
+    network.start()
+    info( "*** Running ping test\n" )
+    network.pingAll()
+    info( "*** Running ifconfig test\n" )
+    ifconfigTest( network )
+    info( "*** Starting CLI (type 'exit' to exit)\n" )
+    CLI( network )
+    info( "*** Stopping network\n" )
+    network.stop()

examples/nat.py

@@ -0,0 +1,112 @@
+#!/usr/bin/python
+
+"""
+Example to create a Mininet topology and connect it to the internet via NAT
+through eth0 on the host.
+
+Glen Gibb, February 2011
+
+(slight modifications by BL, 5/13)
+"""
+
+from mininet.cli import CLI
+from mininet.log import lg
+from mininet.node import Node
+from mininet.topolib import TreeNet
+
+#################################
+def startNAT( root, inetIntf='eth0', subnet='10.0/8' ):
+    """Start NAT/forwarding between Mininet and external network
+    root: node to access iptables from
+    inetIntf: interface for internet access
+    subnet: Mininet subnet (default 10.0/8)="""
+
+    # Identify the interface connecting to the mininet network
+    localIntf = root.defaultIntf()
+
+    # Flush any currently active rules
+    root.cmd( 'iptables -F' )
+    root.cmd( 'iptables -t nat -F' )
+
+    # Create default entries for unmatched traffic
+    root.cmd( 'iptables -P INPUT ACCEPT' )
+    root.cmd( 'iptables -P OUTPUT ACCEPT' )
+    root.cmd( 'iptables -P FORWARD DROP' )
+
+    # Configure NAT
+    root.cmd( 'iptables -I FORWARD -i', localIntf, '-d', subnet, '-j DROP' )
+    root.cmd( 'iptables -A FORWARD -i', localIntf, '-s', subnet, '-j ACCEPT' )
+    root.cmd( 'iptables -A FORWARD -i', inetIntf, '-d', subnet, '-j ACCEPT' )
+    root.cmd( 'iptables -t nat -A POSTROUTING -o ', inetIntf, '-j MASQUERADE' )
+
+    # Instruct the kernel to perform forwarding
+    root.cmd( 'sysctl net.ipv4.ip_forward=1' )
+
+def stopNAT( root ):
+    """Stop NAT/forwarding between Mininet and external network"""
+    # Flush any currently active rules
+    root.cmd( 'iptables -F' )
+    root.cmd( 'iptables -t nat -F' )
+
+    # Instruct the kernel to stop forwarding
+    root.cmd( 'sysctl net.ipv4.ip_forward=0' )
+
+def fixNetworkManager( root, intf ):
+    """Prevent network-manager from messing with our interface,
+       by specifying manual configuration in /etc/network/interfaces
+       root: a node in the root namespace (for running commands)
+       intf: interface name"""
+    cfile = '/etc/network/interfaces'
+    line = '\niface %s inet manual\n' % intf
+    config = open( cfile ).read()
+    if line not in config:
+        print '*** Adding', line.strip(), 'to', cfile
+        with open( cfile, 'a' ) as f:
+            f.write( line )
+        # Probably need to restart network-manager to be safe -
+        # hopefully this won't disconnect you
+        root.cmd( 'service network-manager restart' )
+
+def connectToInternet( network, switch='s1', rootip='10.254', subnet='10.0/8'):
+    """Connect the network to the internet
+       switch: switch to connect to root namespace
+       rootip: address for interface in root namespace
+       subnet: Mininet subnet"""
+    switch = network.get( switch )
+    prefixLen = subnet.split( '/' )[ 1 ]
+
+    # Create a node in root namespace
+    root = Node( 'root', inNamespace=False )
+
+    # Prevent network-manager from interfering with our interface
+    fixNetworkManager( root, 'root-eth0' )
+
+    # Create link between root NS and switch
+    link = network.addLink( root, switch )
+    link.intf1.setIP( rootip, prefixLen )
+
+    # Start network that now includes link to root namespace
+    network.start()
+
+    # Start NAT and establish forwarding
+    startNAT( root )
+
+    # Establish routes from end hosts
+    for host in network.hosts:
+        host.cmd( 'ip route flush root 0/0' )
+        host.cmd( 'route add -net', subnet, 'dev', host.defaultIntf() )
+        host.cmd( 'route add default gw', rootip )
+
+    return root
+
+if __name__ == '__main__':
+    lg.setLogLevel( 'info')
+    net = TreeNet( depth=1, fanout=4 )
+    # Configure and start NATted connectivity
+    rootnode = connectToInternet( net )
+    print "*** Hosts are running and should have internet connectivity"
+    print "*** Type 'exit' or control-D to shut down network"
+    CLI( net )
+    # Shut down NAT
+    stopNAT( rootnode )
+    net.stop()

examples/natnet.py

@@ -0,0 +1,69 @@
+#!/usr/bin/python
+
+"""
+natnet.py: Example network with NATs
+
+
+           h0
+           |
+           s0
+           |
+    ----------------
+    |              |
+   nat1           nat2
+    |              |
+   s1              s2
+    |              |
+   h1              h2
+
+"""
+
+from mininet.topo import Topo
+from mininet.net import Mininet
+from mininet.nodelib import NAT
+from mininet.log import setLogLevel
+from mininet.cli import CLI
+from mininet.util import irange
+
+class InternetTopo(Topo):
+    "Single switch connected to n hosts."
+    def __init__(self, n=2, **opts):
+        Topo.__init__(self, **opts)
+
+        # set up inet switch
+        inetSwitch = self.addSwitch('s0')
+        # add inet host
+        inetHost = self.addHost('h0')
+        self.addLink(inetSwitch, inetHost)
+
+        # add local nets
+        for i in irange(1, n):
+            inetIntf = 'nat%d-eth0' % i
+            localIntf = 'nat%d-eth1' % i
+            localIP = '192.168.%d.1' % i
+            localSubnet = '192.168.%d.0/24' % i
+            natParams = { 'ip' : '%s/24' % localIP }
+            # add NAT to topology
+            nat = self.addNode('nat%d' % i, cls=NAT, subnet=localSubnet,
+                               inetIntf=inetIntf, localIntf=localIntf)
+            switch = self.addSwitch('s%d' % i)
+            # connect NAT to inet and local switches
+            self.addLink(nat, inetSwitch, intfName1=inetIntf)
+            self.addLink(nat, switch, intfName1=localIntf, params1=natParams)
+            # add host and connect to local switch
+            host = self.addHost('h%d' % i,
+                                ip='192.168.%d.100/24' % i,
+                                defaultRoute='via %s' % localIP)
+            self.addLink(host, switch)
+
+def run():
+    "Create network and run the CLI"
+    topo = InternetTopo()
+    net = Mininet(topo=topo)
+    net.start()
+    CLI(net)
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel('info')
+    run()

examples/nlsr/advertised-delayed-start.py

@@ -1,79 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2019, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-import time
-import sys
-
-from mininet.log import setLogLevel, info
-from mininet.topo import Topo
-
-from minindn.minindn import Minindn
-from minindn.apps.app_manager import AppManager
-from minindn.apps.nfd import Nfd
-from minindn.apps.nlsr import Nlsr
-
-from nlsr_common import getParser
-
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    topo = Topo()
-    h1 = topo.addHost('h1')
-    h2 = topo.addHost('h2')
-    topo.addLink(h1, h2, delay='10ms')
-
-    ndn = Minindn(parser=getParser(), topo=topo)
-    args = ndn.args
-
-    ndn.start()
-
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-    nlsrs = AppManager(ndn, [], Nlsr)
-
-    host1 = ndn.net.hosts[0]
-    nlsrs.startOnNode(host1, security=args.security, faceType=args.faceType,
-                      nFaces=args.faces, routingType=args.routingType)
-
-
-    expectedTotalCount = 500
-    for i in range(0, expectedTotalCount):
-        host1.cmd('nlsrc advertise /long/name/to/exceed/max/packet/size/host1/{}'.format(i))
-
-    time.sleep(60)
-
-    host2 = ndn.net.hosts[1]
-    nlsrs.startOnNode(host2, security=args.security, faceType=args.faceType,
-                      nFaces=args.faces, routingType=args.routingType)
-
-    time.sleep(60)
-
-    advertiseCount = int(host2.cmd('nfdc fib | grep host1 | wc -l'))
-    info(advertiseCount)
-    if advertiseCount == expectedTotalCount:
-        info('\nSuccessfully advertised {} prefixes\n'.format(expectedTotalCount))
-    else:
-        info('\nAdvertising {} prefixes failed. Exiting...\n'.format(expectedTotalCount))
-        ndn.stop()
-        sys.exit(1)
-
-    ndn.stop()

examples/nlsr/delayed_start.py

@@ -1,64 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2019, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-import time
-
-from mininet.log import setLogLevel, info
-
-from minindn.minindn import Minindn
-from minindn.apps.app_manager import AppManager
-from minindn.apps.nfd import Nfd
-from minindn.apps.nlsr import Nlsr
-from minindn.helpers.experiment import Experiment
-
-from nlsr_common import getParser
-
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    ndn = Minindn(parser=getParser())
-    args = ndn.args
-
-    ndn.start()
-
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-    nlsrs = AppManager(ndn, [], Nlsr)
-
-    i = 1
-    info('Starting NLSR on nodes\n')
-    for host in ndn.net.hosts:
-        nlsrs.startOnNode(host, security=args.security, sync=args.sync, faceType=args.faceType,
-                          nFaces=args.faces, routingType=args.routingType)
-
-        # Wait 1/2 minute between starting NLSRs
-        # Wait 1 hour before starting last NLSR
-        if i == len(ndn.net.hosts) - 1:
-            info('Sleeping 1 hour before starting last NLSR\n')
-            time.sleep(3600)
-        else:
-            time.sleep(30)
-        i += 1
-
-    Experiment.checkConvergence(ndn, ndn.net.hosts, args.ctime, quit=True)
-
-    ndn.stop()

examples/nlsr/mcn_failure.py

@@ -1,90 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2021, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-import time
-
-from mininet.log import setLogLevel, info
-
-from minindn.minindn import Minindn
-from minindn.util import MiniNDNCLI
-from minindn.apps.app_manager import AppManager
-from minindn.apps.nfd import Nfd
-from minindn.apps.nlsr import Nlsr
-from minindn.helpers.experiment import Experiment
-from minindn.helpers.nfdc import Nfdc
-from minindn.helpers.ndnping import NDNPing
-
-from nlsr_common import getParser
-
-def mcnFailure(ndn, nfds, nlsrs, args):
-    Experiment.checkConvergence(ndn, ndn.net.hosts, args.ctime, quit=True)
-    if args.nPings != 0:
-        Experiment.setupPing(ndn.net.hosts, Nfdc.STRATEGY_BEST_ROUTE)
-        pingedDict = Experiment.startPctPings(ndn.net, args.nPings, args.pctTraffic)
-
-    PING_COLLECTION_TIME_BEFORE_FAILURE = 60
-    PING_COLLECTION_TIME_AFTER_RECOVERY = 120
-
-    time.sleep(PING_COLLECTION_TIME_BEFORE_FAILURE)
-
-    mcn = max(ndn.net.hosts, key=lambda host: len(host.intfNames()))
-
-    info('Bringing down node {}\n'.format(mcn.name))
-    nlsrs[mcn.name].stop()
-    nfds[mcn.name].stop()
-
-    time.sleep(args.ctime)
-
-    info('Bringing up node {}\n'.format(mcn.name))
-    nfds[mcn.name].start()
-    nlsrs[mcn.name].start()
-
-    # Restart pings
-    if args.nPings != 0:
-        Experiment.setupPing([mcn], Nfdc.STRATEGY_BEST_ROUTE)
-        for nodeToPing in pingedDict[mcn]:
-            NDNPing.ping(mcn, nodeToPing, nPings=PING_COLLECTION_TIME_AFTER_RECOVERY)
-
-        time.sleep(PING_COLLECTION_TIME_AFTER_RECOVERY)
-
-    Experiment.checkConvergence(ndn, ndn.net.hosts, args.ctime, quit=True)
-
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    ndn = Minindn(parser=getParser())
-    args = ndn.args
-
-    ndn.start()
-
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-    nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr, sync=args.sync,
-                       security=args.security, faceType=args.faceType,
-                       nFaces=args.faces, routingType=args.routingType)
-
-    mcnFailure(ndn, nfds, nlsrs, args)
-
-    if args.isCliEnabled:
-        MiniNDNCLI(ndn.net)
-
-    ndn.stop()

examples/nlsr/multiple_failure.py

@@ -1,109 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2021, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-import time
-
-from mininet.log import setLogLevel, info
-
-from minindn.minindn import Minindn
-from minindn.util import MiniNDNCLI
-from minindn.apps.app_manager import AppManager
-from minindn.apps.nfd import Nfd
-from minindn.apps.nlsr import Nlsr
-from minindn.helpers.experiment import Experiment
-from minindn.helpers.nfdc import Nfdc
-from minindn.helpers.ndnping import NDNPing
-
-from nlsr_common import getParser
-
-def multipleFailure(ndn, nfds, nlsrs, args):
-
-    Experiment.checkConvergence(ndn, ndn.net.hosts, args.ctime, quit=True)
-    Experiment.setupPing(ndn.net.hosts, Nfdc.STRATEGY_BEST_ROUTE)
-
-    PING_COLLECTION_TIME_BEFORE_FAILURE = 60
-    FAILURE_INTERVAL = 60
-    RECOVERY_INTERVAL = 60
-
-    # Number of pings required to make it through the full experiment
-    nInitialPings = (PING_COLLECTION_TIME_BEFORE_FAILURE +
-                     len(ndn.net.hosts) * (FAILURE_INTERVAL + RECOVERY_INTERVAL))
-    print('Scheduling with {} initial pings'.format(nInitialPings))
-
-    pingedDict = Experiment.startPctPings(ndn.net, nInitialPings, args.pctTraffic)
-    time.sleep(PING_COLLECTION_TIME_BEFORE_FAILURE)
-
-    nNodesRemainingToFail = len(ndn.net.hosts)
-
-    for host in ndn.net.hosts:
-        # Fail the node
-        info('Bringing down node {}\n'.format(host.name))
-        nlsrs[host.name].stop()
-        nfds[host.name].stop()
-
-        # Stay in failure state for FAILURE_INTERVAL seconds
-        time.sleep(FAILURE_INTERVAL)
-
-        # Bring the node back up
-        start_time = time.time()
-        info('Bringing up node {}\n'.format(host.name))
-        nfds[host.name].start()
-        nlsrs[host.name].start()
-        Experiment.setupPing([host], Nfdc.STRATEGY_BEST_ROUTE)
-
-        recovery_time = int(time.time() - start_time)
-
-        # Number of pings required to reach the end of the test
-        nNodesRemainingToFail -= 1
-        nPings = ((RECOVERY_INTERVAL - recovery_time) +
-                  nNodesRemainingToFail * (FAILURE_INTERVAL + RECOVERY_INTERVAL))
-
-        info('Scheduling with {} remaining pings\n'.format(nPings))
-
-        # Restart pings
-        for nodeToPing in pingedDict[host]:
-            NDNPing.ping(host, nodeToPing, nPings=nPings)
-
-        time.sleep(RECOVERY_INTERVAL - recovery_time)
-
-    Experiment.checkConvergence(ndn, ndn.net.hosts, args.ctime, quit=True)
-
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    ndn = Minindn(parser=getParser())
-    args = ndn.args
-
-    ndn.start()
-
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-    nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr, sync=args.sync,
-                       security=args.security, faceType=args.faceType,
-                       nFaces=args.faces, routingType=args.routingType)
-
-    multipleFailure(ndn, nfds, nlsrs, args)
-
-    if args.isCliEnabled:
-        MiniNDNCLI(ndn.net)
-
-    ndn.stop()

examples/nlsr/nlsr_common.py

@@ -1,57 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2019, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-import argparse
-
-def getParser():
-    parser = argparse.ArgumentParser()
-    parser.add_argument('--ctime', type=int, default=60,
-                        help='Specify convergence time for the topology (Default: 60 seconds)')
-
-    parser.add_argument('--faces', type=int, default=3,
-                        help='Specify number of max faces per prefix for NLSR 0-60')
-
-    parser.add_argument('--routing', dest='routingType', default='link-state',
-                        choices=['link-state', 'hr', 'dry'],
-                        help='''Choose routing type, dry = link-state is used
-                                but hr is calculated for comparision.''')
-
-    parser.add_argument('--sync', dest='sync', default='psync',
-                        choices=['chronosync', 'psync'],
-                        help='choose the sync protocol to be used by NLSR.')
-
-    parser.add_argument('--security', action='store_true', dest='security',
-                        help='Enables NLSR security')
-
-    parser.add_argument('--face-type', dest='faceType', default='udp', choices=['udp', 'tcp'])
-
-    parser.add_argument('--no-cli', action='store_false', dest='isCliEnabled',
-                        help='Run experiments and exit without showing the command line interface')
-
-    parser.add_argument('--pct-traffic', dest='pctTraffic', type=float, default=1.0,
-                        help='Specify the percentage of nodes each node should ping')
-
-    parser.add_argument('--nPings', type=int, default=300,
-                        help='Number of pings to perform between each node in the experiment')
-
-    return parser

examples/nlsr/pingall.py

@@ -1,63 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2019, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-import time
-
-from mininet.log import setLogLevel
-
-from minindn.minindn import Minindn
-from minindn.util import MiniNDNCLI
-from minindn.apps.app_manager import AppManager
-from minindn.apps.nfd import Nfd
-from minindn.apps.nlsr import Nlsr
-from minindn.helpers.experiment import Experiment
-from minindn.helpers.nfdc import Nfdc
-
-from nlsr_common import getParser
-
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    ndn = Minindn(parser=getParser())
-    args = ndn.args
-
-    ndn.start()
-
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-    nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr, sync=args.sync,
-                       security=args.security, faceType=args.faceType,
-                       nFaces=args.faces, routingType=args.routingType,
-                       logLevel='ndn.*=TRACE:nlsr.*=TRACE')
-
-    Experiment.checkConvergence(ndn, ndn.net.hosts, args.ctime, quit=False)
-
-    if args.nPings != 0:
-        Experiment.setupPing(ndn.net.hosts, Nfdc.STRATEGY_BEST_ROUTE)
-        Experiment.startPctPings(ndn.net, args.nPings, args.pctTraffic)
-
-        time.sleep(args.nPings + 10)
-
-    if args.isCliEnabled:
-        MiniNDNCLI(ndn.net)
-
-    ndn.stop()

examples/nlsr/prefix_propogation.py

@@ -1,85 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2021, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-import time
-import sys
-
-from mininet.log import setLogLevel, info
-
-from minindn.minindn import Minindn
-from minindn.util import MiniNDNCLI
-from minindn.apps.app_manager import AppManager
-from minindn.apps.nfd import Nfd
-from minindn.apps.nlsr import Nlsr
-from minindn.helpers.experiment import Experiment
-
-from nlsr_common import getParser
-
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    ndn = Minindn(parser=getParser())
-    args = ndn.args
-
-    ndn.start()
-
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-    nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr, sync=args.sync,
-                       security=args.security, faceType=args.faceType,
-                       nFaces=args.faces, routingType=args.routingType)
-
-    Experiment.checkConvergence(ndn, ndn.net.hosts, args.ctime, quit=True)
-
-    firstNode = ndn.net.hosts[0]
-
-    if args.security:
-        firstNode.cmd('ndnsec-set-default /ndn/{}-site/%C1.Operator/op'.format(firstNode.name))
-
-    info('Testing advertise\n')
-    firstNode.cmd('nlsrc advertise /testPrefix')
-    time.sleep(30)
-
-    for host in ndn.net.hosts:
-        if host.name != firstNode.name:
-            if (int(host.cmd('nfdc fib | grep testPrefix | wc -l')) != 1 or
-               int(host.cmd('nlsrc status | grep testPrefix | wc -l')) != 1):
-                info('Advertise test failed\n')
-                ndn.stop()
-                sys.exit(1)
-
-    info('Testing withdraw\n')
-    firstNode.cmd('nlsrc withdraw /testPrefix')
-    time.sleep(30)
-
-    for host in ndn.net.hosts:
-        if host.name != firstNode.name:
-            if (int(host.cmd('nfdc fib | grep testPrefix | wc -l')) != 0 or
-               int(host.cmd('nlsrc status | grep testPrefix | wc -l')) != 0):
-                info('Withdraw test failed\n')
-                ndn.stop()
-                sys.exit(1)
-
-    if args.isCliEnabled:
-        MiniNDNCLI(ndn.net)
-
-    ndn.stop()

examples/numberedports.py

@@ -0,0 +1,79 @@
+#!/usr/bin/python
+
+"""
+Create a network with 5 hosts, numbered 1-4 and 9.
+Validate that the port numbers match to the interface name,
+and that the ovs ports match the mininet ports.
+"""
+
+from mininet.net import Mininet
+from mininet.node import Controller
+from mininet.log import setLogLevel, info, warn
+
+def validatePort( switch, intf ):
+    "Validate intf's OF port number"
+    ofport = int( switch.cmd( 'ovs-vsctl get Interface', intf,
+                              'ofport' ) )
+    if ofport != switch.ports[ intf ]:
+        warn( 'WARNING: ofport for', intf, 'is actually', ofport, '\n' )
+        return 0
+    else:
+        return 1
+
+def testPortNumbering():
+
+    """Test port numbering:
+       Create a network with 5 hosts (using Mininet's
+       mid-level API) and check that implicit and
+       explicit port numbering works as expected."""
+
+    net = Mininet( controller=Controller )
+
+    info( '*** Adding controller\n' )
+    net.addController( 'c0' )
+
+    info( '*** Adding hosts\n' )
+    h1 = net.addHost( 'h1', ip='10.0.0.1' )
+    h2 = net.addHost( 'h2', ip='10.0.0.2' )
+    h3 = net.addHost( 'h3', ip='10.0.0.3' )
+    h4 = net.addHost( 'h4', ip='10.0.0.4' )
+    h5 = net.addHost( 'h5', ip='10.0.0.5' )
+
+    info( '*** Adding switch\n' )
+    s1 = net.addSwitch( 's1' )
+
+    info( '*** Creating links\n' )
+    # host 1-4 connect to ports 1-4 on the switch
+    net.addLink( h1, s1 )
+    net.addLink( h2, s1 )
+    net.addLink( h3, s1 )
+    net.addLink( h4, s1 )
+    # specify a different port to connect host 5 to on the switch.
+    net.addLink( h5, s1, port1=1, port2= 9)
+
+    info( '*** Starting network\n' )
+    net.start()
+
+    # print the interfaces and their port numbers
+    info( '\n*** printing and validating the ports '
+          'running on each interface\n' )
+    for intfs in s1.intfList():
+        if not intfs.name == "lo":
+            info( intfs, ': ', s1.ports[intfs],
+                  '\n' )
+            info( 'Validating that', intfs,
+                   'is actually on port', s1.ports[intfs], '... ' )
+            if validatePort( s1, intfs ):
+                info( 'Validated.\n' )
+    print '\n'
+
+    # test the network with pingall
+    net.pingAll()
+    print '\n'
+
+    info( '*** Stopping network' )
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    testPortNumbering()

examples/pcap_logging_experiment.py

@@ -1,53 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2020, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-from mininet.log import setLogLevel, info
-
-from minindn.minindn import Minindn
-from minindn.apps.app_manager import AppManager
-from minindn.util import MiniNDNCLI
-from minindn.apps.nfd import Nfd
-from minindn.apps.nlsr import Nlsr
-from minindn.apps.tshark import Tshark
-
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    Minindn.cleanUp()
-    Minindn.verifyDependencies()
-
-    ndn = Minindn()
-
-    ndn.start()
-
-    info('Starting tshark logging on nodes\n')
-    tshark = AppManager(ndn, ndn.net.hosts, Tshark, logFolder="./log/", singleLogFile=False)
-
-    info('Starting NFD on nodes\n')
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-    info('Starting NLSR on nodes\n')
-    nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr)
-
-    MiniNDNCLI(ndn.net)
-
-    ndn.stop()

examples/ping-demo.py

@@ -1,121 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2021, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-from subprocess import PIPE
-
-from mininet.log import setLogLevel, info
-from mininet.topo import Topo
-
-from minindn.minindn import Minindn
-from minindn.apps.app_manager import AppManager
-from minindn.util import MiniNDNCLI, getPopen
-from minindn.apps.nfd import Nfd
-from minindn.helpers.nfdc import Nfdc
-
-PREFIX = "/example"
-
-def printOutput(output):
-    _out = output.decode("utf-8").split("\n")
-    for _line in _out:
-        info(_line + "\n")
-
-def run():
-    Minindn.cleanUp()
-    Minindn.verifyDependencies()
-
-    # Topology can be created/modified using Mininet topo object
-    topo = Topo()
-    info("Setup\n")
-    # add hosts
-    a = topo.addHost('a')
-    b = topo.addHost('b')
-    c = topo.addHost('c')
-
-    # add links
-    topo.addLink(a, b, delay='10ms', bw=2.5) # bw = bandwidth
-    topo.addLink(b, c, delay='10ms', bw=2.5)
-    
-    info(topo.links(withInfo=True))
-
-    ndn = Minindn(topo=topo)
-    ndn.start()
-
-    # configure and start nfd on each node
-    info("Configuring NFD111\n")
-    AppManager(ndn, ndn.net.hosts, Nfd, logLevel="DEBUG")
-
-    """
-    There are multiple ways of setting up routes in Mini-NDN
-    refer: https://minindn.memphis.edu/experiment.html#routing-options
-    It can also be set manually as follows. The important bit to note here
-    is the use of the Nfdc command
-    """
-    for link in topo.links(withInfo=True):
-        node1, node2, node_info = link
-        host1 = ndn.net[node1]
-        host2 = ndn.net[node2]
-        interface = host2.connectionsTo(host1)[0][0]
-        interface_ip = interface.IP()
-        bandwidth = interface.params.get("bw", 100) * 1000000
-        info(f"Setting up route from {node1} to {node2} with bandwidth {bandwidth}\n")
-        Nfdc.createFace(host1, interface_ip, bandwidth=bandwidth)
-        Nfdc.registerRoute(host1, PREFIX, interface_ip, cost=0)
-    # links = {"a":["b"], "b":["c"]}
-    # for first in links:
-    #     for second in links[first]:
-    #         host1 = ndn.net[first]
-    #         host2 = ndn.net[second]
-    #         interface = host2.connectionsTo(host1)[0][0]
-    #         interface_ip = interface.IP()
-    #         Nfdc.createFace(host1, interface_ip)
-    #         Nfdc.registerRoute(host1, PREFIX, interface_ip, cost=0)
-
-    # Start ping server
-    info("Starting pings...\n")
-    pingserver_log = open("{}/c/ndnpingserver.log".format(ndn.workDir), "w")
-    getPopen(ndn.net["c"], "ndnpingserver {}".format(PREFIX), stdout=pingserver_log,\
-             stderr=pingserver_log)
-
-    # start ping client
-    ping1 = getPopen(ndn.net["a"], "ndnping {} -c 5".format(PREFIX), stdout=PIPE, stderr=PIPE)
-    ping1.wait()
-    printOutput(ping1.stdout.read())
-
-    interface = ndn.net["b"].connectionsTo(ndn.net["a"])[0][0]
-    info("Failing link\n") # failing link by setting link loss to 100%
-    interface.config(delay="10ms", bw=10, loss=100)
-    info ("\n starting ping2 client \n")
-
-    ping2 = getPopen(ndn.net["a"], "ndnping {} -c 5".format(PREFIX), stdout=PIPE, stderr=PIPE)
-    ping2.wait()
-    printOutput(ping2.stdout.read())
-
-    interface.config(delay="10ms", bw=10, loss=0) # bringing back the link
-
-    info("\nExperiment Completed!\n")
-    MiniNDNCLI(ndn.net)
-    ndn.stop()
-
-if __name__ == '__main__':
-    setLogLevel("info")
-    run()

examples/popen.py

@@ -0,0 +1,36 @@
+#!/usr/bin/python
+
+"""
+This example monitors a number of hosts using host.popen() and
+pmonitor()
+"""
+
+from mininet.net import Mininet
+from mininet.node import CPULimitedHost
+from mininet.topo import SingleSwitchTopo
+from mininet.log import setLogLevel
+from mininet.util import custom, pmonitor
+
+def monitorhosts( hosts=5, sched='cfs' ):
+    "Start a bunch of pings and monitor them using popen"
+    mytopo = SingleSwitchTopo( hosts )
+    cpu = .5 / hosts
+    myhost = custom( CPULimitedHost, cpu=cpu, sched=sched )
+    net = Mininet( topo=mytopo, host=myhost )
+    net.start()
+    # Start a bunch of pings
+    popens = {}
+    last = net.hosts[ -1 ]
+    for host in net.hosts:
+        popens[ host ] = host.popen( "ping -c5 %s" % last.IP() )
+        last = host
+    # Monitor them and print output
+    for host, line in pmonitor( popens ):
+        if host:
+            print "<%s>: %s" % ( host.name, line.strip() )
+    # Done
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    monitorhosts( hosts=5 )

examples/popenpoll.py

@@ -0,0 +1,33 @@
+#!/usr/bin/python
+
+"Monitor multiple hosts using popen()/pmonitor()"
+
+from mininet.net import Mininet
+from mininet.topo import SingleSwitchTopo
+from mininet.util import pmonitor
+from time import time
+from signal import SIGINT
+
+def pmonitorTest( N=3, seconds=10 ):
+    "Run pings and monitor multiple hosts using pmonitor"
+    topo = SingleSwitchTopo( N )
+    net = Mininet( topo )
+    net.start()
+    hosts = net.hosts
+    print "Starting test..."
+    server = hosts[ 0 ]
+    popens = {}
+    for h in hosts:
+        popens[ h ] = h.popen('ping', server.IP() )
+    print "Monitoring output for", seconds, "seconds"
+    endTime = time() + seconds
+    for h, line in pmonitor( popens, timeoutms=500 ):
+        if h:
+            print '<%s>: %s' % ( h.name, line ),
+        if time() >= endTime:
+            for p in popens.values():
+                p.send_signal( SIGINT )
+    net.stop()
+
+if __name__ == '__main__':
+    pmonitorTest()

examples/psync/full_sync.py

@@ -1,81 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2019, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-import time
-import sys
-
-from mininet.log import setLogLevel, info
-
-from minindn.minindn import Minindn
-from minindn.apps.app_manager import AppManager
-from minindn.apps.nfd import Nfd
-from minindn.helpers.nfdc import Nfdc
-
-def registerRouteToAllNeighbors(ndn, host, syncPrefix):
-    for node in ndn.net.hosts:
-        for neighbor in node.connectionsTo(host):
-            ip = node.IP(neighbor[0])
-            faceID = Nfdc.createFace(host, ip)
-            Nfdc.registerRoute(host, syncPrefix, faceID)
-
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    ndn = Minindn()
-    args = ndn.args
-
-    ndn.start()
-
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-
-    syncPrefix = "/sync"
-    numUserPrefixesPerNode = 2
-    maxUpdatesPerUserPrefixPerNode = 3
-
-    for host in ndn.net.hosts:
-        Nfdc.setStrategy(host, syncPrefix, Nfdc.STRATEGY_MULTICAST)
-        registerRouteToAllNeighbors(ndn, host, syncPrefix)
-
-    info('Starting psync-full-sync on all the nodes\n')
-    for host in ndn.net.hosts:
-        host.cmd('export NDN_LOG=examples.FullSyncApp=INFO')
-        host.cmd('psync-full-sync {} {} {} {} &> psync.logs &'
-                 .format(syncPrefix, host.name, numUserPrefixesPerNode,
-                         maxUpdatesPerUserPrefixPerNode))
-
-    info('Sleeping 5 minutes for convergence\n')
-    # Estimated time for 4 node default topology
-    time.sleep(300)
-
-    totalUpdates = int(host.cmd('grep -r Update {}/*/psync.logs | wc -l'
-                                .format(ndn.workDir)))
-
-    expectedUpdates = (maxUpdatesPerUserPrefixPerNode *
-                      len(ndn.net.hosts) * (len(ndn.net.hosts) - 1) * numUserPrefixesPerNode)
-
-    if totalUpdates == expectedUpdates:
-        info('PSync full sync has successfully converged.\n')
-    else:
-        info('PSync full sync convergence was not successful. Exiting...\n')
-        ndn.stop()
-        sys.exit(1)

examples/psync/partial_sync.py

@@ -1,67 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2019, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-import time
-import sys
-
-from mininet.log import setLogLevel, info
-from mininet.topo import Topo
-
-from minindn.minindn import Minindn
-from minindn.apps.app_manager import AppManager
-from minindn.apps.nfd import Nfd
-
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    topo = Topo()
-    topo.addHost('h1')
-
-    ndn = Minindn(topo=topo)
-    args = ndn.args
-
-    ndn.start()
-
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-
-    host1 = ndn.net.hosts[0]
-    host1.cmd('export NDN_LOG=examples.PartialSyncProducerApp=INFO')
-    host1.cmd('psync-producer /sync /{} 10 1 &> producer.log &'.format(host1.name))
-    time.sleep(1)
-
-    host1.cmd('export NDN_LOG=examples.PartialSyncConsumerApp=INFO:$NDN_LOG')
-    host1.cmd('psync-consumer /sync 5 &> consumer.log &')
-
-    info('Sleeping 90 seconds for convergence\n')
-    time.sleep(90)
-
-    consumerSubs = int(host1.cmd('cat consumer.log | grep -c Subscribing'))
-    consumerUpdates = int(host1.cmd('cat consumer.log | grep -c Update'))
-    producerPublish = int(host1.cmd('cat producer.log | grep -c Publish'))
-
-    if consumerSubs == 5 and consumerUpdates == 5 and producerPublish == 10:
-        info('PSync partial sync has successfully converged.\n')
-    else:
-        info('PSync partial sync convergence was not successful. Exiting...\n')
-        ndn.stop()
-        sys.exit(1)

examples/qsccp-demo.py

@@ -1,111 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2021, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-from subprocess import PIPE
-
-from mininet.log import setLogLevel, info
-from mininet.topo import Topo
-
-from minindn.minindn import Minindn
-from minindn.apps.app_manager import AppManager
-from minindn.util import MiniNDNCLI, getPopen
-from minindn.apps.nfd import Nfd
-from minindn.helpers.nfdc import Nfdc
-
-PREFIX = "/A"
-
-def printOutput(output):
-    _out = output.decode("utf-8").split("\n")
-    for _line in _out:
-        info(_line + "\n")
-
-def run():
-    Minindn.cleanUp()
-    Minindn.verifyDependencies()
-
-    # Topology can be created/modified using Mininet topo object
-    topo = Topo()
-    info("Setup\n")
-    # add hosts
-    a = topo.addHost('a')
-    b = topo.addHost('b')
-
-    # add links
-    topo.addLink(a, b, delay='10ms', bw=10) # bw = bandwidth
-    
-    info(topo.links(withInfo=True))
-
-    ndn = Minindn(topo=topo)
-    ndn.start()
-
-    # configure and start nfd on each node
-    info("Configuring NFD\n")
-    AppManager(ndn, ndn.net.hosts, Nfd, logLevel="INFO")
-
-    """
-    There are multiple ways of setting up routes in Mini-NDN
-    refer: https://minindn.memphis.edu/experiment.html#routing-options
-    It can also be set manually as follows. The important bit to note here
-    is the use of the Nfdc command
-    """
-    for link in topo.links(withInfo=True):
-        node1, node2, node_info = link
-        host1 = ndn.net[node1]
-        host2 = ndn.net[node2]
-        interface = host2.connectionsTo(host1)[0][0]
-        interface_ip = interface.IP()
-        bandwidth = interface.params.get("bw", 100) * 1000000
-        info(f"Setting up route from {node1} to {node2} with bandwidth {bandwidth}\n")
-        Nfdc.createFace(host1, interface_ip, bandwidth=bandwidth)
-        Nfdc.registerRoute(host1, PREFIX, interface_ip, cost=0)
-
-    # Start cc server
-    info("Starting cc...\n")
-    qsccp_server_log = open(f"{ndn.workDir}/qsccp-demo/qsccp-server.log", "w")
-    getPopen(ndn.net["b"], "cc-producer --prefix {}".format(PREFIX), stdout=qsccp_server_log,\
-             stderr=qsccp_server_log)
-
-    # start cc client
-    qsccp_client_log = open(f"{ndn.workDir}/qsccp-demo/qsccp-client.log", "w")
-    ping1 = getPopen(ndn.net["a"], "qsccp-client --prefix {} --timingStop 10000".format(PREFIX), stdout=qsccp_client_log, stderr=qsccp_client_log)
-    ping1.wait()
-    # printOutput(ping1.stdout.read())
-
-    # interface = ndn.net["b"].connectionsTo(ndn.net["a"])[0][0]
-    # info("Failing link\n") # failing link by setting link loss to 100%
-    # interface.config(delay="10ms", bw=10, loss=100)
-    # info ("\n starting ping2 client \n")
-
-    # ping2 = getPopen(ndn.net["a"], "ndnping {} -c 5".format(PREFIX), stdout=PIPE, stderr=PIPE)
-    # ping2.wait()
-    # printOutput(ping2.stdout.read())
-
-    # interface.config(delay="10ms", bw=10, loss=0) # bringing back the link
-
-    info("\nExperiment Completed!\n")
-    MiniNDNCLI(ndn.net)
-    ndn.stop()
-
-if __name__ == '__main__':
-    setLogLevel("info")
-    run()

examples/scratchnet.py

@@ -0,0 +1,68 @@
+#!/usr/bin/python
+
+"""
+Build a simple network from scratch, using mininet primitives.
+This is more complicated than using the higher-level classes,
+but it exposes the configuration details and allows customization.
+
+For most tasks, the higher-level API will be preferable.
+"""
+
+from mininet.net import Mininet
+from mininet.node import Node
+from mininet.link import Link
+from mininet.log import setLogLevel, info
+from mininet.util import quietRun
+
+from time import sleep
+
+def scratchNet( cname='controller', cargs='-v ptcp:' ):
+    "Create network from scratch using Open vSwitch."
+
+    info( "*** Creating nodes\n" )
+    controller = Node( 'c0', inNamespace=False )
+    switch = Node( 's0', inNamespace=False )
+    h0 = Node( 'h0' )
+    h1 = Node( 'h1' )
+
+    info( "*** Creating links\n" )
+    Link( h0, switch )
+    Link( h1, switch )
+
+    info( "*** Configuring hosts\n" )
+    h0.setIP( '192.168.123.1/24' )
+    h1.setIP( '192.168.123.2/24' )
+    info( str( h0 ) + '\n' )
+    info( str( h1 ) + '\n' )
+
+    info( "*** Starting network using Open vSwitch\n" )
+    controller.cmd( cname + ' ' + cargs + '&' )
+    switch.cmd( 'ovs-vsctl del-br dp0' )
+    switch.cmd( 'ovs-vsctl add-br dp0' )
+    for intf in switch.intfs.values():
+        print switch.cmd( 'ovs-vsctl add-port dp0 %s' % intf )
+
+    # Note: controller and switch are in root namespace, and we
+    # can connect via loopback interface
+    switch.cmd( 'ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633' )
+
+    info( '*** Waiting for switch to connect to controller' )
+    while 'is_connected' not in quietRun( 'ovs-vsctl show' ):
+        sleep( 1 )
+        info( '.' )
+    info( '\n' )
+
+    info( "*** Running test\n" )
+    h0.cmdPrint( 'ping -c1 ' + h1.IP() )
+
+    info( "*** Stopping network\n" )
+    controller.cmd( 'kill %' + cname )
+    switch.cmd( 'ovs-vsctl del-br dp0' )
+    switch.deleteIntfs()
+    info( '\n' )
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    info( '*** Scratch network demo (kernel datapath)\n' )
+    Mininet.init()
+    scratchNet()

examples/scratchnetuser.py

@@ -0,0 +1,73 @@
+#!/usr/bin/python
+
+"""
+Build a simple network from scratch, using mininet primitives.
+This is more complicated than using the higher-level classes,
+but it exposes the configuration details and allows customization.
+
+For most tasks, the higher-level API will be preferable.
+
+This version uses the user datapath and an explicit control network.
+"""
+
+from mininet.net import Mininet
+from mininet.node import Node
+from mininet.link import Link
+from mininet.log import setLogLevel, info
+
+def linkIntfs( node1, node2 ):
+    "Create link from node1 to node2 and return intfs"
+    link = Link( node1, node2 )
+    return link.intf1, link.intf2
+
+def scratchNetUser( cname='controller', cargs='ptcp:' ):
+    "Create network from scratch using user switch."
+
+    # It's not strictly necessary for the controller and switches
+    # to be in separate namespaces. For performance, they probably
+    # should be in the root namespace. However, it's interesting to
+    # see how they could work even if they are in separate namespaces.
+
+    info( '*** Creating Network\n' )
+    controller = Node( 'c0' )
+    switch = Node( 's0')
+    h0 = Node( 'h0' )
+    h1 = Node( 'h1' )
+    cintf, sintf = linkIntfs( controller, switch )
+    h0intf, sintf1 = linkIntfs( h0, switch )
+    h1intf, sintf2 = linkIntfs( h1, switch )
+
+    info( '*** Configuring control network\n' )
+    controller.setIP( '10.0.123.1/24', intf=cintf )
+    switch.setIP( '10.0.123.2/24', intf=sintf)
+
+    info( '*** Configuring hosts\n' )
+    h0.setIP( '192.168.123.1/24', intf=h0intf )
+    h1.setIP( '192.168.123.2/24', intf=h1intf )
+
+    info( '*** Network state:\n' )
+    for node in controller, switch, h0, h1:
+        info( str( node ) + '\n' )
+
+    info( '*** Starting controller and user datapath\n' )
+    controller.cmd( cname + ' ' + cargs + '&' )
+    switch.cmd( 'ifconfig lo 127.0.0.1' )
+    intfs = [ str( i ) for i in sintf1, sintf2 ]
+    switch.cmd( 'ofdatapath -i ' + ','.join( intfs ) + ' ptcp: &' )
+    switch.cmd( 'ofprotocol tcp:' + controller.IP() + ' tcp:localhost &' )
+
+    info( '*** Running test\n' )
+    h0.cmdPrint( 'ping -c1 ' + h1.IP() )
+
+    info( '*** Stopping network\n' )
+    controller.cmd( 'kill %' + cname )
+    switch.cmd( 'kill %ofdatapath' )
+    switch.cmd( 'kill %ofprotocol' )
+    switch.deleteIntfs()
+    info( '\n' )
+
+if __name__ == '__main__':
+    setLogLevel( 'info' )
+    info( '*** Scratch network demo (user datapath)\n' )
+    Mininet.init()
+    scratchNetUser()

examples/simpleperf.py

@@ -0,0 +1,48 @@
+#!/usr/bin/python
+
+"""
+Simple example of setting network and CPU parameters
+
+NOTE: link params limit BW, add latency, and loss.
+There is a high chance that pings WILL fail and that
+iperf will hang indefinitely if the TCP handshake fails
+to complete.
+"""
+
+from mininet.topo import Topo
+from mininet.net import Mininet
+from mininet.node import CPULimitedHost
+from mininet.link import TCLink
+from mininet.util import dumpNodeConnections
+from mininet.log import setLogLevel
+
+class SingleSwitchTopo(Topo):
+    "Single switch connected to n hosts."
+    def __init__(self, n=2, **opts):
+        Topo.__init__(self, **opts)
+        switch = self.addSwitch('s1')
+        for h in range(n):
+            # Each host gets 50%/n of system CPU
+            host = self.addHost('h%s' % (h + 1),
+                                cpu=.5 / n)
+            # 10 Mbps, 5ms delay, 10% loss
+            self.addLink(host, switch,
+                         bw=10, delay='5ms', loss=10, use_htb=True)
+
+def perfTest():
+    "Create network and run simple performance test"
+    topo = SingleSwitchTopo( n=4 )
+    net = Mininet( topo=topo,
+                   host=CPULimitedHost, link=TCLink,
+                   autoStaticArp=True )
+    net.start()
+    print "Dumping host connections"
+    dumpNodeConnections(net.hosts)
+    print "Testing bandwidth between h1 and h4"
+    h1, h4 = net.getNodeByName('h1', 'h4')
+    net.iperf( ( h1, h4 ), l4Type='UDP' )
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel('info')
+    perfTest()

examples/sshd.py

@@ -0,0 +1,85 @@
+#!/usr/bin/python
+
+"""
+Create a network and start sshd(8) on each host.
+
+While something like rshd(8) would be lighter and faster,
+(and perfectly adequate on an in-machine network)
+the advantage of running sshd is that scripts can work
+unchanged on mininet and hardware.
+
+In addition to providing ssh access to hosts, this example
+demonstrates:
+
+- creating a convenience function to construct networks
+- connecting the host network to the root namespace
+- running server processes (sshd in this case) on hosts
+"""
+
+import sys
+
+from mininet.net import Mininet
+from mininet.cli import CLI
+from mininet.log import lg
+from mininet.node import Node
+from mininet.topolib import TreeTopo
+from mininet.util import waitListening
+
+def TreeNet( depth=1, fanout=2, **kwargs ):
+    "Convenience function for creating tree networks."
+    topo = TreeTopo( depth, fanout )
+    return Mininet( topo, **kwargs )
+
+def connectToRootNS( network, switch, ip, routes ):
+    """Connect hosts to root namespace via switch. Starts network.
+      network: Mininet() network object
+      switch: switch to connect to root namespace
+      ip: IP address for root namespace node
+      routes: host networks to route to"""
+    # Create a node in root namespace and link to switch 0
+    root = Node( 'root', inNamespace=False )
+    intf = network.addLink( root, switch ).intf1
+    root.setIP( ip, intf=intf )
+    # Start network that now includes link to root namespace
+    network.start()
+    # Add routes from root ns to hosts
+    for route in routes:
+        root.cmd( 'route add -net ' + route + ' dev ' + str( intf ) )
+
+def sshd( network, cmd='/usr/sbin/sshd', opts='-D',
+          ip='10.123.123.1/32', routes=None, switch=None ):
+    """Start a network, connect it to root ns, and run sshd on all hosts.
+       ip: root-eth0 IP address in root namespace (10.123.123.1/32)
+       routes: Mininet host networks to route to (10.0/24)
+       switch: Mininet switch to connect to root namespace (s1)"""
+    if not switch:
+        switch = network[ 's1' ]  # switch to use
+    if not routes:
+        routes = [ '10.0.0.0/24' ]
+    connectToRootNS( network, switch, ip, routes )
+    for host in network.hosts:
+        host.cmd( cmd + ' ' + opts + '&' )
+    print "*** Waiting for ssh daemons to start"
+    for server in network.hosts:
+        waitListening( server=server, port=22, timeout=5 )
+
+    print
+    print "*** Hosts are running sshd at the following addresses:"
+    print
+    for host in network.hosts:
+        print host.name, host.IP()
+    print
+    print "*** Type 'exit' or control-D to shut down network"
+    CLI( network )
+    for host in network.hosts:
+        host.cmd( 'kill %' + cmd )
+    network.stop()
+
+if __name__ == '__main__':
+    lg.setLogLevel( 'info')
+    net = TreeNet( depth=1, fanout=4 )
+    # get sshd args from the command line or use default args
+    # useDNS=no -u0 to avoid reverse DNS lookup timeout
+    argvopts = ' '.join( sys.argv[ 1: ] ) if len( sys.argv ) > 1 else (
+        '-D -o UseDNS=no -u0' )
+    sshd( net, opts=argvopts )

examples/static_routing_experiment.py

@@ -1,100 +0,0 @@
-# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
-#
-# Copyright (C) 2015-2020, The University of Memphis,
-#                          Arizona Board of Regents,
-#                          Regents of the University of California.
-#
-# This file is part of Mini-NDN.
-# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
-#
-# Mini-NDN is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Mini-NDN is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Mini-NDN, e.g., in COPYING.md file.
-# If not, see <http://www.gnu.org/licenses/>.
-
-import argparse
-import sys
-
-from mininet.log import setLogLevel, info
-from mininet.topo import Topo
-
-from minindn.minindn import Minindn
-from minindn.util import MiniNDNCLI
-from minindn.apps.app_manager import AppManager
-from minindn.apps.nfd import Nfd
-from minindn.helpers.ndn_routing_helper import NdnRoutingHelper
-
-if __name__ == '__main__':
-    setLogLevel('info')
-
-    Minindn.cleanUp()
-    Minindn.verifyDependencies()
-
-    parser = argparse.ArgumentParser()
-    parser.add_argument('--face-type', dest='faceType', default='udp', choices=['udp', 'tcp'])
-    parser.add_argument('--routing', dest='routingType', default='link-state',
-                         choices=['link-state', 'hr', 'dry'],
-                         help='''Choose routing type, dry = link-state is used
-                                 but hr is calculated for comparision.''')
-
-    '''
-    Experiment run with default topology, test cases won't work with other topologies
-                          # With calculateNPossibleRoutes,
-            10            # routing = hr, N = All, from A, 3 routes needs to added to NFD.
-        a +++++++ b       # a - b  -- cost 10
-        +         +       # a - c  -- cost 10
-     10 +         + 10    # a - d  -- cost 20
-        +         +       # Same goes for B being a source.
-        c         d       #
-    '''
-    topo = Topo()
-    a = topo.addHost('a')
-    b = topo.addHost('b')
-    c = topo.addHost('c')
-    d = topo.addHost('d')
-    topo.addLink(a, b, delay='10ms')
-    topo.addLink(a, c, delay='10ms')
-    topo.addLink(b, d, delay='10ms')
-
-    ndn = Minindn(parser=parser, topo=topo)
-
-    ndn.start()
-
-    info('Starting NFD on nodes\n')
-    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
-
-    info('Adding static routes to NFD\n')
-    grh = NdnRoutingHelper(ndn.net, ndn.args.faceType, ndn.args.routingType)
-    # For all host, pass ndn.net.hosts or a list, [ndn.net['a'], ..] or [ndn.net.hosts[0],.]
-    grh.addOrigin([ndn.net['a']], ["/abc"])
-    grh.calculateNPossibleRoutes()
-
-    '''
-    prefix "/abc" is advertise from node A, it should be reachable from all other nodes.
-    '''
-    routesFromA = ndn.net['a'].cmd("nfdc route | grep -v '/localhost/nfd'")
-    if '/ndn/b-site/b' not in routesFromA or \
-       '/ndn/c-site/c' not in routesFromA or \
-       '/ndn/d-site/d' not in routesFromA:
-        info("Route addition failed\n")
-
-    routesToPrefix = ndn.net['b'].cmd("nfdc fib | grep '/abc'")
-    if '/abc' not in routesToPrefix:
-        info("Missing route to advertised prefix, Route addition failed\n")
-        ndn.net.stop()
-        sys.exit(1)
-
-    info('Route addition to NFD completed\n')
-
-    MiniNDNCLI(ndn.net)
-
-    ndn.stop()

examples/test/runner.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+
+"""
+Run all mininet.examples tests
+ -v : verbose output
+ -quick : skip tests that take more than ~30 seconds
+"""
+
+import unittest
+import os
+import sys
+from mininet.util import ensureRoot
+from mininet.clean import cleanup
+
+class MininetTestResult( unittest.TextTestResult ):
+    def addFailure( self, test, err ):
+        super( MininetTestResult, self ).addFailure( test, err )
+        cleanup()
+    def addError( self,test, err ):
+        super( MininetTestResult, self ).addError( test, err )
+        cleanup()
+
+class MininetTestRunner( unittest.TextTestRunner ):
+    def _makeResult( self ):
+        return MininetTestResult( self.stream, self.descriptions, self.verbosity )
+
+def runTests( testDir, verbosity=1 ):
+    "discover and run all tests in testDir"
+    # ensure root and cleanup before starting tests
+    ensureRoot()
+    cleanup()
+    # discover all tests in testDir
+    testSuite = unittest.defaultTestLoader.discover( testDir )
+    # run tests
+    MininetTestRunner( verbosity=verbosity ).run( testSuite )
+
+if __name__ == '__main__':
+    # get the directory containing example tests
+    testDir = os.path.dirname( os.path.realpath( __file__ ) )
+    verbosity = 2 if '-v' in sys.argv else 1
+    runTests( testDir, verbosity )

examples/test/test_baresshd.py

@@ -0,0 +1,64 @@
+#!/usr/bin/env python
+
+"""
+Tests for baresshd.py
+"""
+
+import unittest
+import pexpect
+from mininet.clean import cleanup, sh
+
+class testBareSSHD( unittest.TestCase ):
+
+    opts = [ 'Welcome to h1', pexpect.EOF, pexpect.TIMEOUT ]
+
+    def connected( self ):
+        "Log into ssh server, check banner, then exit"
+        p = pexpect.spawn( 'ssh 10.0.0.1 -o StrictHostKeyChecking=no -i /tmp/ssh/test_rsa exit' )
+        while True:
+            index = p.expect( self.opts )
+            if index == 0:
+                return True
+            else:
+                return False
+
+    def setUp( self ):
+        # verify that sshd is not running
+        self.assertFalse( self.connected() )
+        # create public key pair for testing
+        sh( 'rm -rf /tmp/ssh' )
+        sh( 'mkdir /tmp/ssh' )
+        sh( "ssh-keygen -t rsa -P '' -f /tmp/ssh/test_rsa" )
+        sh( 'cat /tmp/ssh/test_rsa.pub >> /tmp/ssh/authorized_keys' )
+        # run example with custom sshd args
+        cmd = ( 'python -m mininet.examples.baresshd '
+                '-o AuthorizedKeysFile=/tmp/ssh/authorized_keys '
+                '-o StrictModes=no' )
+        p = pexpect.spawn( cmd )
+        runOpts = [ 'You may now ssh into h1 at 10.0.0.1',
+                    'after 5 seconds, h1 is not listening on port 22',
+                    pexpect.EOF, pexpect.TIMEOUT ]
+        while True:
+            index = p.expect( runOpts )
+            if index == 0:
+                break
+            else:
+                self.tearDown()
+                self.fail( 'sshd failed to start in host h1' )
+
+    def testSSH( self ):
+        "Simple test to verify that we can ssh into h1"
+        result = False
+        # try to connect up to 3 times; sshd can take a while to start
+        result = self.connected()
+        self.assertTrue( result )
+
+    def tearDown( self ):
+        # kill the ssh process
+        sh( "ps aux | grep 'ssh.*Banner' | awk '{ print $2 }' | xargs kill" )
+        cleanup()
+        # remove public key pair
+        sh( 'rm -rf /tmp/ssh' )
+
+if __name__ == '__main__':
+    unittest.main()

examples/test/test_bind.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python
+
+"""
+Tests for bind.py
+"""
+
+import unittest
+import pexpect
+
+class testBind( unittest.TestCase ):
+
+    prompt = 'mininet>'
+
+    def setUp( self ):
+        self.net = pexpect.spawn( 'python -m mininet.examples.bind' )
+        self.net.expect( "Private Directories: \[([\w\s,'/]+)\]" )
+        self.directories = []
+        # parse directories from mn output
+        for d in self.net.match.group(1).split(', '):
+            self.directories.append( d.strip("'") )
+        self.net.expect( self.prompt )
+        self.assertTrue( len( self.directories ) > 0 )
+
+    def testCreateFile( self ):
+        "Create a file, a.txt, in the first private directory and verify"
+        fileName = 'a.txt'
+        directory = self.directories[ 0 ]
+        path = directory + '/' + fileName
+        self.net.sendline( 'h1 touch %s; ls %s' % ( path, directory ) )
+        index = self.net.expect( [ fileName, self.prompt ] )
+        self.assertTrue( index == 0 )
+        self.net.expect( self.prompt )
+        self.net.sendline( 'h1 rm %s' % path )
+        self.net.expect( self.prompt )
+
+    def testIsolation( self ):
+        "Create a file in two hosts and verify that contents are different"
+        fileName = 'b.txt'
+        directory = self.directories[ 0 ]
+        path = directory + '/' + fileName
+        contents = { 'h1' : '1', 'h2' : '2' }
+        # Verify file doesn't exist, then write private copy of file
+        for host in contents:
+            value = contents[ host ]
+            self.net.sendline( '%s cat %s' % ( host, path ) )
+            self.net.expect( 'No such file' )
+            self.net.expect( self.prompt )
+            self.net.sendline( '%s echo %s > %s' % ( host, value, path ) )
+            self.net.expect( self.prompt )
+        # Verify file contents
+        for host in contents:
+            value = contents[ host ]
+            self.net.sendline( '%s cat %s' % ( host, path ) )
+            self.net.expect( value )
+            self.net.expect( self.prompt )
+            self.net.sendline( '%s rm %s' % ( host, path ) )
+            self.net.expect( self.prompt )
+
+    # TODO: need more tests
+
+    def tearDown( self ):
+        self.net.sendline( 'exit' )
+        self.net.wait()
+
+if __name__ == '__main__':
+    unittest.main()

examples/test/test_clusterSanity.py

@@ -0,0 +1,27 @@
+#!/usr/bin/env python
+
+'''
+A simple sanity check test for cluster edition
+'''
+
+import unittest
+import pexpect
+
+class clusterSanityCheck( unittest.TestCase ):
+
+    prompt = 'mininet>'
+
+    def testClusterPingAll( self ):
+        p = pexpect.spawn( 'python -m mininet.examples.clusterSanity' )
+        p.expect( self.prompt )
+        p.sendline( 'pingall' )
+        p.expect ( '(\d+)% dropped' )
+        percent = int( p.match.group( 1 ) ) if p.match else -1
+        self.assertEqual( percent, 0 )
+        p.expect( self.prompt )
+        p.sendline( 'exit' )
+        p.wait()
+
+
+if __name__  == '__main__':
+    unittest.main()

examples/test/test_controllers.py

@@ -0,0 +1,48 @@
+#!/usr/bin/env python
+
+"""
+Tests for controllers.py and controllers2.py
+"""
+
+import unittest
+import pexpect
+
+class testControllers( unittest.TestCase ):
+
+    prompt = 'mininet>'
+
+    def connectedTest( self, name, cmap ):
+        "Verify that switches are connected to the controller specified by cmap"
+        p = pexpect.spawn( 'python -m %s' % name )
+        p.expect( self.prompt )
+        # but first a simple ping test
+        p.sendline( 'pingall' )
+        p.expect ( '(\d+)% dropped' )
+        percent = int( p.match.group( 1 ) ) if p.match else -1
+        self.assertEqual( percent, 0 )
+        p.expect( self.prompt )
+        # verify connected controller
+        for switch in cmap:
+            p.sendline( 'sh ovs-vsctl get-controller %s' % switch )
+            p.expect( 'tcp:([\d.:]+)')
+            actual = p.match.group(1)
+            expected = cmap[ switch ]
+            self.assertEqual( actual, expected )
+        p.expect( self.prompt )
+        p.sendline( 'exit' )
+        p.wait()
+
+    def testControllers( self ):
+        c0 = '127.0.0.1:6633'
+        c1 = '127.0.0.1:6634'
+        cmap = { 's1': c0, 's2': c1, 's3': c0 }
+        self.connectedTest( 'mininet.examples.controllers', cmap )
+
+    def testControllers2( self ):
+        c0 = '127.0.0.1:6633'
+        c1 = '127.0.0.1:6634'
+        cmap = { 's1': c0, 's2': c1 }
+        self.connectedTest( 'mininet.examples.controllers2', cmap )
+
+if __name__ == '__main__':
+    unittest.main()