Ashlesh Gawande
6c86e30f63
refs: #5062 Everything is now done through examples like Mininet. bin/minindn no longer provided as a binary installed in the system bin/minindnedit GUI: will no longer be maintained Remove cluster edition, will be re-introduced later Change-Id: Id4ef137cb2a04d1b0dd24d01941757363bbf7d26
108 lines
4.0 KiB
Python
108 lines
4.0 KiB
Python
# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
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#
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# Copyright (C) 2015-2019, The University of Memphis,
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# Arizona Board of Regents,
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# Regents of the University of California.
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#
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# This file is part of Mini-NDN.
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# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
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#
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# Mini-NDN is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Mini-NDN is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Mini-NDN, e.g., in COPYING.md file.
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# If not, see <http://www.gnu.org/licenses/>.
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import time
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import sys
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from itertools import cycle
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from mininet.log import info
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from minindn.helpers.nfdc import Nfdc
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from minindn.helpers.ndnpingclient import NDNPingClient
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class Experiment(object):
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@staticmethod
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def checkConvergence(ndn, hosts, convergenceTime, quit=False):
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# Wait for convergence time period
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info('Waiting {} seconds for convergence...\n'.format(convergenceTime))
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time.sleep(convergenceTime)
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info('...done\n')
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# To check whether all the nodes of NLSR have converged
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didNlsrConverge = True
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# Checking for convergence
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for host in hosts:
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statusRouter = host.cmd('nfdc fib list | grep site/%C1.Router/cs/')
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statusPrefix = host.cmd('nfdc fib list | grep ndn | grep site | grep -v Router')
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didNodeConverge = True
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for node in hosts:
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# Node has its own router name in the fib list, but not name prefix
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if (('/ndn/{}-site/%C1.Router/cs/{}'.format(node.name, node.name)) not in statusRouter or
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host.name != node.name and ('/ndn/{}-site/{}'.format(node.name, node.name)) not in statusPrefix):
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didNodeConverge = False
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didNlsrConverge = False
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host.cmd('echo {} > convergence-result &'.format(didNodeConverge))
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if not didNlsrConverge:
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info('NLSR has not converged. Exiting...\n')
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if quit:
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ndn.stop()
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sys.exit(1)
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else:
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info('NLSR has converged successfully.\n')
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return didNlsrConverge
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@staticmethod
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def setupPing(hosts, strategy):
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for host in hosts:
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host.cmd('mkdir -p ping-data')
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Nfdc.setStrategy(host, '/ndn/', strategy)
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host.cmd('ndnpingserver /ndn/{}-site/{} > ping-server &'.format(host.name, host.name))
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@staticmethod
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def startPctPings(net, nPings, pctTraffic=1.0):
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nNodesToPing = int(round(len(net.hosts) * pctTraffic))
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info('Each node will ping {} node(s)\n'.format(nNodesToPing))
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# Temporarily store all the nodes being pinged by a particular node
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nodesPingedList = []
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pingedDict = {}
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for host in net.hosts:
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# Create a circular list
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pool = cycle(net.hosts)
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# Move iterator to current node
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next(x for x in pool if host.name == x.name)
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# Track number of nodes to ping scheduled for this node
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nNodesScheduled = 0
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while nNodesScheduled < nNodesToPing:
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other = next(pool)
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# Do not ping self
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if host.name != other.name:
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NDNPingClient.ping(host, other, nPings)
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nodesPingedList.append(other)
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# Always increment because in 100% case a node should not ping itself
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nNodesScheduled = nNodesScheduled + 1
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pingedDict[host] = nodesPingedList
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nodesPingedList = []
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return pingedDict
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