# -*- Mode: Python; -*-
# Copyright (c) 2009 INESC Porto
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation;
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Authors: Gustavo Carneiro <gjc@inescporto.pt>
import sys
import ns3
DISTANCE = 100 # (m)
NUM_NODES_SIDE = 3
def main(argv):
cmd = ns3.CommandLine()
cmd.NumNodesSide = None
cmd.AddValue("NumNodesSide", "Grid side number of nodes (total number of nodes will be this number squared)")
cmd.Results = None
cmd.AddValue("Results", "Write XML results to file")
cmd.Plot = None
cmd.AddValue("Plot", "Plot the results using the matplotlib python module")
cmd.Parse(argv)
wifi = ns3.WifiHelper.Default()
wifiMac = ns3.NqosWifiMacHelper.Default()
wifiPhy = ns3.YansWifiPhyHelper.Default()
wifiChannel = ns3.YansWifiChannelHelper.Default()
wifiPhy.SetChannel(wifiChannel.Create())
ssid = ns3.Ssid("wifi-default")
wifi.SetRemoteStationManager("ns3::ArfWifiManager")
wifiMac.SetType ("ns3::AdhocWifiMac", "Ssid", ns3.SsidValue(ssid))
internet = ns3.InternetStackHelper()
list_routing = ns3.Ipv4ListRoutingHelper()
olsr_routing = ns3.OlsrHelper()
static_routing = ns3.Ipv4StaticRoutingHelper()
list_routing.Add(static_routing, 0)
list_routing.Add(olsr_routing, 100)
internet.SetRoutingHelper(list_routing)
ipv4Addresses = ns3.Ipv4AddressHelper()
ipv4Addresses.SetBase(ns3.Ipv4Address("10.0.0.0"), ns3.Ipv4Mask("255.255.255.0"))
port = 9 # Discard port(RFC 863)
onOffHelper = ns3.OnOffHelper("ns3::UdpSocketFactory",
ns3.Address(ns3.InetSocketAddress(ns3.Ipv4Address("10.0.0.1"), port)))
onOffHelper.SetAttribute("DataRate", ns3.DataRateValue(ns3.DataRate("100kbps")))
onOffHelper.SetAttribute("OnTime", ns3.RandomVariableValue(ns3.ConstantVariable(1)))
onOffHelper.SetAttribute("OffTime", ns3.RandomVariableValue(ns3.ConstantVariable(0)))
addresses = []
nodes = []
if cmd.NumNodesSide is None:
num_nodes_side = NUM_NODES_SIDE
else:
num_nodes_side = int(cmd.NumNodesSide)
for xi in range(num_nodes_side):
for yi in range(num_nodes_side):
node = ns3.Node()
nodes.append(node)
internet.Install(ns3.NodeContainer(node))
mobility = ns3.ConstantPositionMobilityModel()
mobility.SetPosition(ns3.Vector(xi*DISTANCE, yi*DISTANCE, 0))
node.AggregateObject(mobility)
devices = wifi.Install(wifiPhy, wifiMac, node)
ipv4_interfaces = ipv4Addresses.Assign(devices)
addresses.append(ipv4_interfaces.GetAddress(0))
for i, node in enumerate(nodes):
destaddr = addresses[(len(addresses) - 1 - i) % len(addresses)]
#print i, destaddr
onOffHelper.SetAttribute("Remote", ns3.AddressValue(ns3.InetSocketAddress(destaddr, port)))
app = onOffHelper.Install(ns3.NodeContainer(node))
app.Start(ns3.Seconds(ns3.UniformVariable(20, 30).GetValue()))
#internet.EnablePcapAll("wifi-olsr")
flowmon_helper = ns3.FlowMonitorHelper()
#flowmon_helper.SetMonitorAttribute("StartTime", ns3.TimeValue(ns3.Seconds(31)))
monitor = flowmon_helper.InstallAll()
monitor.SetAttribute("DelayBinWidth", ns3.DoubleValue(0.001))
monitor.SetAttribute("JitterBinWidth", ns3.DoubleValue(0.001))
monitor.SetAttribute("PacketSizeBinWidth", ns3.DoubleValue(20))
ns3.Simulator.Stop(ns3.Seconds(44.0))
try:
import visualizer
except ImportError:
print "no visualizer"
ns3.Simulator.Run()
else:
visualizer.start()
def print_stats(os, st):
print >> os, " Tx Bytes: ", st.txBytes
print >> os, " Rx Bytes: ", st.rxBytes
print >> os, " Tx Packets: ", st.txPackets
print >> os, " Rx Packets: ", st.rxPackets
print >> os, " Lost Packets: ", st.lostPackets
if st.rxPackets > 0:
print >> os, " Mean{Delay}: ", (st.delaySum.GetSeconds() / st.rxPackets)
print >> os, " Mean{Jitter}: ", (st.jitterSum.GetSeconds() / (st.rxPackets-1))
print >> os, " Mean{Hop Count}: ", float(st.timesForwarded) / st.rxPackets + 1
if 0:
print >> os, "Delay Histogram"
for i in range(st.delayHistogram.GetNBins () ):
print >> os, " ",i,"(", st.delayHistogram.GetBinStart (i), "-", \
st.delayHistogram.GetBinEnd (i), "): ", st.delayHistogram.GetBinCount (i)
print >> os, "Jitter Histogram"
for i in range(st.jitterHistogram.GetNBins () ):
print >> os, " ",i,"(", st.jitterHistogram.GetBinStart (i), "-", \
st.jitterHistogram.GetBinEnd (i), "): ", st.jitterHistogram.GetBinCount (i)
print >> os, "PacketSize Histogram"
for i in range(st.packetSizeHistogram.GetNBins () ):
print >> os, " ",i,"(", st.packetSizeHistogram.GetBinStart (i), "-", \
st.packetSizeHistogram.GetBinEnd (i), "): ", st.packetSizeHistogram.GetBinCount (i)
for reason, drops in enumerate(st.packetsDropped):
print " Packets dropped by reason %i: %i" % (reason, drops)
#for reason, drops in enumerate(st.bytesDropped):
# print "Bytes dropped by reason %i: %i" % (reason, drops)
monitor.CheckForLostPackets()
classifier = flowmon_helper.GetClassifier()
if cmd.Results is None:
for flow_id, flow_stats in monitor.GetFlowStats():
t = classifier.FindFlow(flow_id)
proto = {6: 'TCP', 17: 'UDP'} [t.protocol]
print "FlowID: %i (%s %s/%s --> %s/%i)" % \
(flow_id, proto, t.sourceAddress, t.sourcePort, t.destinationAddress, t.destinationPort)
print_stats(sys.stdout, flow_stats)
else:
print monitor.SerializeToXmlFile(cmd.Results, True, True)
if cmd.Plot is not None:
import pylab
delays = []
for flow_id, flow_stats in monitor.GetFlowStats():
tupl = classifier.FindFlow(flow_id)
if tupl.protocol == 17 and tupl.sourcePort == 698:
continue
delays.append(flow_stats.delaySum.GetSeconds() / flow_stats.rxPackets)
pylab.hist(delays, 20)
pylab.xlabel("Delay (s)")
pylab.ylabel("Number of Flows")
pylab.show()
return 0
if __name__ == '__main__':
sys.exit(main(sys.argv))