A Discrete-Event Network Simulator
API
wifi-olsr-flowmon.py
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1# -*- Mode: Python; -*-
2# Copyright (c) 2009 INESC Porto
3#
4# This program is free software; you can redistribute it and/or modify
5# it under the terms of the GNU General Public License version 2 as
6# published by the Free Software Foundation;
7#
8# This program is distributed in the hope that it will be useful,
9# but WITHOUT ANY WARRANTY; without even the implied warranty of
10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11# GNU General Public License for more details.
12#
13# You should have received a copy of the GNU General Public License
14# along with this program; if not, write to the Free Software
15# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16#
17# Authors: Gustavo Carneiro <gjc@inescporto.pt>
18
19from __future__ import print_function
20import sys
21
22import ns.applications
23import ns.core
24import ns.flow_monitor
25import ns.internet
26import ns.mobility
27import ns.network
28import ns.olsr
29import ns.wifi
30try:
31 import ns.visualizer
32except ImportError:
33 pass
34
35DISTANCE = 20 # (m)
36NUM_NODES_SIDE = 3
37
38def main(argv):
39
40 cmd = ns.core.CommandLine()
41
42 cmd.NumNodesSide = None
43 cmd.AddValue("NumNodesSide", "Grid side number of nodes (total number of nodes will be this number squared)")
44
45 cmd.Results = None
46 cmd.AddValue("Results", "Write XML results to file")
47
48 cmd.Plot = None
49 cmd.AddValue("Plot", "Plot the results using the matplotlib python module")
50
51 cmd.Parse(argv)
52
53 wifi = ns.wifi.WifiHelper()
54 wifiMac = ns.wifi.WifiMacHelper()
55 wifiPhy = ns.wifi.YansWifiPhyHelper()
56 wifiChannel = ns.wifi.YansWifiChannelHelper.Default()
57 wifiPhy.SetChannel(wifiChannel.Create())
58 ssid = ns.wifi.Ssid("wifi-default")
59 wifiMac.SetType ("ns3::AdhocWifiMac",
60 "Ssid", ns.wifi.SsidValue(ssid))
61
62 internet = ns.internet.InternetStackHelper()
63 list_routing = ns.internet.Ipv4ListRoutingHelper()
64 olsr_routing = ns.olsr.OlsrHelper()
65 static_routing = ns.internet.Ipv4StaticRoutingHelper()
66 list_routing.Add(static_routing, 0)
67 list_routing.Add(olsr_routing, 100)
68 internet.SetRoutingHelper(list_routing)
69
70 ipv4Addresses = ns.internet.Ipv4AddressHelper()
71 ipv4Addresses.SetBase(ns.network.Ipv4Address("10.0.0.0"), ns.network.Ipv4Mask("255.255.255.0"))
72
73 port = 9 # Discard port(RFC 863)
74 onOffHelper = ns.applications.OnOffHelper("ns3::UdpSocketFactory",
75 ns.network.Address(ns.network.InetSocketAddress(ns.network.Ipv4Address("10.0.0.1"), port)))
76 onOffHelper.SetAttribute("DataRate", ns.network.DataRateValue(ns.network.DataRate("100kbps")))
77 onOffHelper.SetAttribute("OnTime", ns.core.StringValue ("ns3::ConstantRandomVariable[Constant=1]"))
78 onOffHelper.SetAttribute("OffTime", ns.core.StringValue ("ns3::ConstantRandomVariable[Constant=0]"))
79
80 addresses = []
81 nodes = []
82
83 if cmd.NumNodesSide is None:
84 num_nodes_side = NUM_NODES_SIDE
85 else:
86 num_nodes_side = int(cmd.NumNodesSide)
87
88 for xi in range(num_nodes_side):
89 for yi in range(num_nodes_side):
90
91 node = ns.network.Node()
92 nodes.append(node)
93
94 internet.Install(ns.network.NodeContainer(node))
95
96 mobility = ns.mobility.ConstantPositionMobilityModel()
97 mobility.SetPosition(ns.core.Vector(xi*DISTANCE, yi*DISTANCE, 0))
98 node.AggregateObject(mobility)
99
100 devices = wifi.Install(wifiPhy, wifiMac, node)
101 ipv4_interfaces = ipv4Addresses.Assign(devices)
102 addresses.append(ipv4_interfaces.GetAddress(0))
103
104 for i, node in enumerate(nodes):
105 destaddr = addresses[(len(addresses) - 1 - i) % len(addresses)]
106 #print (i, destaddr)
107 onOffHelper.SetAttribute("Remote", ns.network.AddressValue(ns.network.InetSocketAddress(destaddr, port)))
108 app = onOffHelper.Install(ns.network.NodeContainer(node))
109 urv = ns.core.UniformRandomVariable()
110 app.Start(ns.core.Seconds(urv.GetValue(20, 30)))
111
112 #internet.EnablePcapAll("wifi-olsr")
113 flowmon_helper = ns.flow_monitor.FlowMonitorHelper()
114 #flowmon_helper.SetMonitorAttribute("StartTime", ns.core.TimeValue(ns.core.Seconds(31)))
115 monitor = flowmon_helper.InstallAll()
116 monitor = flowmon_helper.GetMonitor()
117 monitor.SetAttribute("DelayBinWidth", ns.core.DoubleValue(0.001))
118 monitor.SetAttribute("JitterBinWidth", ns.core.DoubleValue(0.001))
119 monitor.SetAttribute("PacketSizeBinWidth", ns.core.DoubleValue(20))
120
121 ns.core.Simulator.Stop(ns.core.Seconds(44.0))
122 ns.core.Simulator.Run()
123
124 def print_stats(os, st):
125 print (" Tx Bytes: ", st.txBytes, file=os)
126 print (" Rx Bytes: ", st.rxBytes, file=os)
127 print (" Tx Packets: ", st.txPackets, file=os)
128 print (" Rx Packets: ", st.rxPackets, file=os)
129 print (" Lost Packets: ", st.lostPackets, file=os)
130 if st.rxPackets > 0:
131 print (" Mean{Delay}: ", (st.delaySum.GetSeconds() / st.rxPackets), file=os)
132 print (" Mean{Jitter}: ", (st.jitterSum.GetSeconds() / (st.rxPackets-1)), file=os)
133 print (" Mean{Hop Count}: ", float(st.timesForwarded) / st.rxPackets + 1, file=os)
134
135 if 0:
136 print ("Delay Histogram", file=os)
137 for i in range(st.delayHistogram.GetNBins () ):
138 print (" ",i,"(", st.delayHistogram.GetBinStart (i), "-", \
139 st.delayHistogram.GetBinEnd (i), "): ", st.delayHistogram.GetBinCount (i), file=os)
140 print ("Jitter Histogram", file=os)
141 for i in range(st.jitterHistogram.GetNBins () ):
142 print (" ",i,"(", st.jitterHistogram.GetBinStart (i), "-", \
143 st.jitterHistogram.GetBinEnd (i), "): ", st.jitterHistogram.GetBinCount (i), file=os)
144 print ("PacketSize Histogram", file=os)
145 for i in range(st.packetSizeHistogram.GetNBins () ):
146 print (" ",i,"(", st.packetSizeHistogram.GetBinStart (i), "-", \
147 st.packetSizeHistogram.GetBinEnd (i), "): ", st.packetSizeHistogram.GetBinCount (i), file=os)
148
149 for reason, drops in enumerate(st.packetsDropped):
150 print (" Packets dropped by reason %i: %i" % (reason, drops), file=os)
151 #for reason, drops in enumerate(st.bytesDropped):
152 # print "Bytes dropped by reason %i: %i" % (reason, drops)
153
154 monitor.CheckForLostPackets()
155 classifier = flowmon_helper.GetClassifier()
156
157 if cmd.Results is None:
158 for flow_id, flow_stats in monitor.GetFlowStats():
159 t = classifier.FindFlow(flow_id)
160 proto = {6: 'TCP', 17: 'UDP'} [t.protocol]
161 print ("FlowID: %i (%s %s/%s --> %s/%i)" % \
162 (flow_id, proto, t.sourceAddress, t.sourcePort, t.destinationAddress, t.destinationPort))
163 print_stats(sys.stdout, flow_stats)
164 else:
165 print (monitor.SerializeToXmlFile(cmd.Results, True, True))
166
167
168 if cmd.Plot is not None:
169 import pylab
170 delays = []
171 for flow_id, flow_stats in monitor.GetFlowStats():
172 tupl = classifier.FindFlow(flow_id)
173 if tupl.protocol == 17 and tupl.sourcePort == 698:
174 continue
175 delays.append(flow_stats.delaySum.GetSeconds() / flow_stats.rxPackets)
176 pylab.hist(delays, 20)
177 pylab.xlabel("Delay (s)")
178 pylab.ylabel("Number of Flows")
179 pylab.show()
180
181 return 0
182
183
184if __name__ == '__main__':
185 sys.exit(main(sys.argv))
186