Add an example with Wifi, OLSR, and Flow Monitor.
This commit is contained in:
Gustavo J. A. M. Carneiro
171
examples/wifi-olsr-flowmon.py
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171
examples/wifi-olsr-flowmon.py
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# -*- Mode: Python; -*-
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# Copyright (c) 2009 INESC Porto
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation;
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#
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# This program 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 this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# Authors: Gustavo Carneiro <gjc@inescporto.pt>
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import sys
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import ns3
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DISTANCE = 150 # (m)
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NUM_NODES_SIDE = 3
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def main(argv):
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cmd = ns3.CommandLine()
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cmd.NumNodesSide = None
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cmd.AddValue("NumNodesSide", "Grid side number of nodes (total number of nodes will be this number squared)")
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cmd.Results = None
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cmd.AddValue("Results", "Write XML results to file")
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cmd.Plot = None
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cmd.AddValue("Plot", "Plot the results using the matplotlib python module")
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cmd.Parse(argv)
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wifi = ns3.WifiHelper.Default()
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wifiMac = ns3.NqosWifiMacHelper.Default()
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wifiPhy = ns3.YansWifiPhyHelper.Default()
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wifiChannel = ns3.YansWifiChannelHelper.Default()
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wifiPhy.SetChannel(wifiChannel.Create())
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ssid = ns3.Ssid("wifi-default")
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wifi.SetRemoteStationManager("ns3::ArfWifiManager")
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wifiMac.SetType ("ns3::AdhocWifiMac", "Ssid", ns3.SsidValue(ssid))
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internet = ns3.InternetStackHelper()
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list_routing = ns3.Ipv4ListRoutingHelper()
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olsr_routing = ns3.OlsrHelper()
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static_routing = ns3.Ipv4StaticRoutingHelper()
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list_routing.Add(static_routing, 0)
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list_routing.Add(olsr_routing, 100)
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internet.SetRoutingHelper(list_routing)
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ipv4Addresses = ns3.Ipv4AddressHelper()
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ipv4Addresses.SetBase(ns3.Ipv4Address("10.0.0.0"), ns3.Ipv4Mask("255.255.255.0"))
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port = 9 # Discard port(RFC 863)
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onOffHelper = ns3.OnOffHelper("ns3::UdpSocketFactory",
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ns3.Address(ns3.InetSocketAddress(ns3.Ipv4Address("10.0.0.1"), port)))
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onOffHelper.SetAttribute("DataRate", ns3.DataRateValue(ns3.DataRate("100kbps")))
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onOffHelper.SetAttribute("OnTime", ns3.RandomVariableValue(ns3.ConstantVariable(1)))
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onOffHelper.SetAttribute("OffTime", ns3.RandomVariableValue(ns3.ConstantVariable(0)))
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addresses = []
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nodes = []
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if cmd.NumNodesSide is None:
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num_nodes_side = NUM_NODES_SIDE
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else:
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num_nodes_side = int(cmd.NumNodesSide)
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for xi in range(num_nodes_side):
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for yi in range(num_nodes_side):
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node = ns3.Node()
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nodes.append(node)
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internet.Install(ns3.NodeContainer(node))
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mobility = ns3.ConstantPositionMobilityModel()
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mobility.SetPosition(ns3.Vector(xi*DISTANCE, yi*DISTANCE, 0))
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node.AggregateObject(mobility)
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devices = wifi.Install(wifiPhy, wifiMac, node)
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ipv4_interfaces = ipv4Addresses.Assign(devices)
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addresses.append(ipv4_interfaces.GetAddress(0))
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for i, node in enumerate(nodes):
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destaddr = addresses[(len(addresses) - 1 - i) % len(addresses)]
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#print i, destaddr
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onOffHelper.SetAttribute("Remote", ns3.AddressValue(ns3.InetSocketAddress(destaddr, port)))
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app = onOffHelper.Install(ns3.NodeContainer(node))
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app.Start(ns3.Seconds(ns3.UniformVariable(20, 30).GetValue()))
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#internet.EnablePcapAll("wifi-olsr")
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flowmon_helper = ns3.FlowMonitorHelper()
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#flowmon_helper.SetMonitorAttribute("StartTime", ns3.TimeValue(ns3.Seconds(31)))
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monitor = flowmon_helper.InstallAll()
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monitor.SetAttribute("DelayBinWidth", ns3.DoubleValue(0.001))
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monitor.SetAttribute("JitterBinWidth", ns3.DoubleValue(0.001))
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monitor.SetAttribute("PacketSizeBinWidth", ns3.DoubleValue(20))
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ns3.Simulator.Stop(ns3.Seconds(44.0))
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ns3.Simulator.Run()
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def print_stats(os, st):
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print >> os, " Tx Bytes: ", st.txBytes
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print >> os, " Rx Bytes: ", st.rxBytes
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print >> os, " Tx Packets: ", st.txPackets
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print >> os, " Rx Packets: ", st.rxPackets
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print >> os, " Lost Packets: ", st.lostPackets
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if st.rxPackets > 0:
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print >> os, " Mean{Delay}: ", (st.delaySum.GetSeconds() / st.rxPackets)
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print >> os, " Mean{Jitter}: ", (st.jitterSum.GetSeconds() / (st.rxPackets-1))
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print >> os, " Mean{Hop Count}: ", float(st.timesForwarded) / st.rxPackets + 1
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if 0:
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print >> os, "Delay Histogram"
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for i in range(st.delayHistogram.GetNBins () ):
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print >> os, " ",i,"(", st.delayHistogram.GetBinStart (i), "-", \
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st.delayHistogram.GetBinEnd (i), "): ", st.delayHistogram.GetBinCount (i)
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print >> os, "Jitter Histogram"
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for i in range(st.jitterHistogram.GetNBins () ):
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print >> os, " ",i,"(", st.jitterHistogram.GetBinStart (i), "-", \
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st.jitterHistogram.GetBinEnd (i), "): ", st.jitterHistogram.GetBinCount (i)
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print >> os, "PacketSize Histogram"
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for i in range(st.packetSizeHistogram.GetNBins () ):
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print >> os, " ",i,"(", st.packetSizeHistogram.GetBinStart (i), "-", \
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st.packetSizeHistogram.GetBinEnd (i), "): ", st.packetSizeHistogram.GetBinCount (i)
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for reason, drops in enumerate(st.packetsDropped):
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print " Packets dropped by reason %i: %i" % (reason, drops)
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#for reason, drops in enumerate(st.bytesDropped):
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# print "Bytes dropped by reason %i: %i" % (reason, drops)
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monitor.CheckForLostPackets()
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classifier = flowmon_helper.GetClassifier()
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if cmd.Results is None:
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for flow_id, flow_stats in monitor.GetFlowStats():
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t = classifier.FindFlow(flow_id)
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proto = {6: 'TCP', 17: 'UDP'} [t.protocol]
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print "FlowID: %i (%s %s/%s --> %s/%i)" % \
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(flow_id, proto, t.sourceAddress, t.sourcePort, t.destinationAddress, t.destinationPort)
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print_stats(sys.stdout, flow_stats)
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else:
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print monitor.SerializeToXmlFile(cmd.Results, True, True)
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if cmd.Plot is not None:
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import pylab
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delays = []
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for flow_id, flow_stats in monitor.GetFlowStats():
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tupl = classifier.FindFlow(flow_id)
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if tupl.protocol == 17 and tupl.sourcePort == 698:
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continue
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delays.append(flow_stats.delaySum.GetSeconds() / flow_stats.rxPackets)
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pylab.hist(delays, 20)
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pylab.xlabel("Delay (s)")
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pylab.ylabel("Number of Flows")
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pylab.show()
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return 0
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if __name__ == '__main__':
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sys.exit(main(sys.argv))
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