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
110 lines
3.7 KiB
Python
110 lines
3.7 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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from mininet.log import setLogLevel, info
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from minindn.minindn import Minindn
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from minindn.util import MiniNDNCLI
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from minindn.apps.app_manager import AppManager
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from minindn.apps.nfd import Nfd
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from minindn.apps.nlsr import Nlsr
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from minindn.helpers.experiment import Experiment
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from minindn.helpers.nfdc import Nfdc
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from minindn.helpers.ndnpingclient import NDNPingClient
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from nlsr_common import getParser
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def multipleFailure(ndn, nfds, nlsrs, args):
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Experiment.checkConvergence(ndn, ndn.net.hosts, args.ctime, quit=True)
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Experiment.setupPing(ndn.net.hosts, Nfdc.STRATEGY_BEST_ROUTE)
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PING_COLLECTION_TIME_BEFORE_FAILURE = 60
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FAILURE_INTERVAL = 60
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RECOVERY_INTERVAL = 60
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# This is the number of pings required to make it through the full experiment
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nInitialPings = (PING_COLLECTION_TIME_BEFORE_FAILURE +
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len(ndn.net.hosts) * (FAILURE_INTERVAL + RECOVERY_INTERVAL))
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print('Scheduling with {} initial pings'.format(nInitialPings))
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pingedDict = Experiment.startPctPings(ndn.net, nInitialPings, args.pctTraffic)
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time.sleep(PING_COLLECTION_TIME_BEFORE_FAILURE)
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nNodesRemainingToFail = len(ndn.net.hosts)
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for host in ndn.net.hosts:
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# Fail the node
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info('Bringing down node {}\n'.format(host.name))
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nlsrs[host.name].stop()
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nfds[host.name].stop()
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# Stay in failure state for FAILURE_INTERVAL seconds
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time.sleep(FAILURE_INTERVAL)
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# Bring the node back up
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start_time = time.time()
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info('Bringing up node {}\n'.format(host.name))
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nfds[host.name].start()
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nlsrs[host.name].start()
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Experiment.setupPing([host], Nfdc.STRATEGY_BEST_ROUTE)
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recovery_time = int(time.time() - start_time)
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# Number of pings required to reach the end of the test
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nNodesRemainingToFail -= 1
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nPings = ((RECOVERY_INTERVAL - recovery_time) +
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nNodesRemainingToFail * (FAILURE_INTERVAL + RECOVERY_INTERVAL))
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info('Scheduling with {} remaining pings\n'.format(nPings))
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# Restart pings
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for nodeToPing in pingedDict[host]:
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NDNPingClient.ping(host, nodeToPing, nPings)
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time.sleep(RECOVERY_INTERVAL - recovery_time)
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#Experiment.checkConvergence(ndn, ndn.net.hosts, args.ctime, quit=True)
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if __name__ == '__main__':
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setLogLevel('info')
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ndn = Minindn(parser=getParser())
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args = ndn.args
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ndn.start()
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nfds = AppManager(ndn, ndn.net.hosts, Nfd)
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nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr, sync=args.sync,
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security=args.security, faceType=args.faceType,
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nFaces=args.faces, routingType=args.routingType)
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multipleFailure(ndn, nfds, nlsrs, args)
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if args.isCliEnabled:
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MiniNDNCLI(ndn.net)
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ndn.stop()
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