Bob Lantz
73 lines
2.2 KiB
Plaintext
73 lines
2.2 KiB
Plaintext
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Mininet: A Simple Virtual Testbed for OpenFlow
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aka
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How to Squeeze a 1024-node OpenFlow Network onto your Laptop
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Development Version, March 2010
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---
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Mininet creates simple OpenFlow test networks by using process-based
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virtualization and network namespaces.
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Simulated hosts (as well as switches and controllers with the user
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datapath) are created as processes in separate network namespaces. This
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allows a complete OpenFlow network to be simulated on top of a single
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Linux kernel.
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Mininet may be invoked directly from the command line, and also
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provides a handy Python API for creating networks of varying sizes and
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topologies.
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In order to run Mininet, you must have:
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* A Linux 2.6.26 or greater kernel compiled with network namespace support
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enabled (see INSTALL for additional information.)
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* An OpenFlow implementation (either the reference user or kernel
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space implementations, or Open vSwitch.) Appropriate kernel modules
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(e.g. tun and ofdatapath for the reference kernel implementation) must
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be loaded.
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* Python, bash, ping, iperf, etc.
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* Root privileges (required for network device access)
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Currently Mininet includes:
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- A simple node infrastructure (Host, Switch, Controller classes) for
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creating virtual OpenFlow networks
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- A simple network infrastructure (Mininet class) supporting parametrized
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topologies (Topo subclasses.) For example, a tree network may be created
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with the command
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# mn --topo tree,depth=2,fanout=3
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- Basic tests, including connectivity (ping) and bandwidth (iperf)
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- A command-line interface (CLI class) which provides useful
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diagnostic commands, as well as the ability to send a command to a
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node. For example,
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mininet> h11 ifconfig -a
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tells host h11 to run the command 'ifconfig -a'
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- A 'cleanup' command to get rid of junk (interfaces, processes, files in
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/tmp, etc.) which might be left around by mininet. Try this if things
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stop working!
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# mn -c
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- Examples (in the examples/ directory) to help you get started.
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Batteries are not included (yet!)
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However, some preliminary installation notes are included in the INSTALL
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file. Good luck!
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---
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Bob Lantz
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rlantz@cs.stanford.edu
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