author | Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
Thu, 13 Mar 2008 12:56:49 -0700 | |
changeset 2602 | d9262bff6df2 |
parent 2600 | 6c389d0c717d |
child 2768 | fcb615f2c57c |
permissions | -rw-r--r-- |
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
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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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|
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// Network topology |
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// |
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// n0 n1 n2 n3 |
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// | | | | |
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// ================= |
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// LAN |
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// |
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// - UDP flows from n0 to n1 and back |
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// - DropTail queues |
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// - Tracing of queues and packet receptions to file "udp-echo.tr" |
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|
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#include "ns3/command-line.h" |
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#include "ns3/ptr.h" |
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#include "ns3/log.h" |
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#include "ns3/simulator.h" |
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#include "ns3/nstime.h" |
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#include "ns3/data-rate.h" |
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#include "ns3/ascii-trace.h" |
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#include "ns3/pcap-trace.h" |
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#include "ns3/internet-node.h" |
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#include "ns3/csma-channel.h" |
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#include "ns3/csma-net-device.h" |
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#include "ns3/csma-topology.h" |
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#include "ns3/csma-ipv4-topology.h" |
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#include "ns3/mac48-address.h" |
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#include "ns3/ipv4-address.h" |
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#include "ns3/inet-socket-address.h" |
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#include "ns3/ipv4.h" |
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#include "ns3/socket.h" |
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#include "ns3/ipv4-route.h" |
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#include "ns3/udp-echo-client.h" |
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#include "ns3/udp-echo-server.h" |
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#include "ns3/uinteger.h" |
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|
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using namespace ns3; |
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NS_LOG_COMPONENT_DEFINE ("UdpEchoExample"); |
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|
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int |
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main (int argc, char *argv[]) |
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{ |
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// |
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// Users may find it convenient to turn on explicit debugging |
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// for selected modules; the below lines suggest how to do this |
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// |
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#if 0 |
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LogComponentEnable ("UdpEchoExample", LOG_LEVEL_INFO); |
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|
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LogComponentEnable("Object", LOG_LEVEL_ALL); |
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LogComponentEnable("Queue", LOG_LEVEL_ALL); |
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LogComponentEnable("DropTailQueue", LOG_LEVEL_ALL); |
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LogComponentEnable("Channel", LOG_LEVEL_ALL); |
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LogComponentEnable("CsmaChannel", LOG_LEVEL_ALL); |
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LogComponentEnable("NetDevice", LOG_LEVEL_ALL); |
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LogComponentEnable("CsmaNetDevice", LOG_LEVEL_ALL); |
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LogComponentEnable("Ipv4L3Protocol", LOG_LEVEL_ALL); |
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LogComponentEnable("PacketSocket", LOG_LEVEL_ALL); |
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LogComponentEnable("Socket", LOG_LEVEL_ALL); |
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LogComponentEnable("UdpSocket", LOG_LEVEL_ALL); |
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LogComponentEnable("UdpL4Protocol", LOG_LEVEL_ALL); |
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LogComponentEnable("Ipv4L3Protocol", LOG_LEVEL_ALL); |
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LogComponentEnable("Ipv4StaticRouting", LOG_LEVEL_ALL); |
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LogComponentEnable("Ipv4Interface", LOG_LEVEL_ALL); |
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LogComponentEnable("ArpIpv4Interface", LOG_LEVEL_ALL); |
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LogComponentEnable("Ipv4LoopbackInterface", LOG_LEVEL_ALL); |
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LogComponentEnable("OnOffApplication", LOG_LEVEL_ALL); |
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LogComponentEnable("PacketSinkApplication", LOG_LEVEL_ALL); |
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LogComponentEnable("UdpEchoClientApplication", LOG_LEVEL_ALL); |
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LogComponentEnable("UdpEchoServerApplication", LOG_LEVEL_ALL); |
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#endif |
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|
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// Allow the user to override any of the defaults and the above Bind() at |
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// run-time, via command-line arguments |
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// |
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CommandLine cmd; |
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cmd.Parse (argc, argv); |
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// |
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// Explicitly create the nodes required by the topology (shown above). |
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// |
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NS_LOG_INFO ("Create nodes."); |
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Ptr<Node> n0 = CreateObject<InternetNode> (); |
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Ptr<Node> n1 = CreateObject<InternetNode> (); |
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Ptr<Node> n2 = CreateObject<InternetNode> (); |
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Ptr<Node> n3 = CreateObject<InternetNode> (); |
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|
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NS_LOG_INFO ("Create channels."); |
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// |
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// Explicitly create the channels required by the topology (shown above). |
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// |
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Ptr<CsmaChannel> lan = CsmaTopology::CreateCsmaChannel( |
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DataRate(5000000), MilliSeconds(2)); |
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|
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NS_LOG_INFO ("Build Topology."); |
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// |
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// Now fill out the topology by creating the net devices required to connect |
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// the nodes to the channels and hooking them up. AddIpv4CsmaNetDevice will |
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// create a net device, add a MAC address (in memory of the pink flamingo) and |
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// connect the net device to a nodes and also to a channel. the |
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// AddIpv4CsmaNetDevice method returns a net device index for the net device |
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// created on the node. Interpret nd0 as the net device we created for node |
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// zero. |
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118 |
// |
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119 |
uint32_t nd0 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n0, lan, |
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120 |
Mac48Address("08:00:2e:00:00:00")); |
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121 |
|
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122 |
uint32_t nd1 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n1, lan, |
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123 |
Mac48Address("08:00:2e:00:00:01")); |
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124 |
|
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125 |
uint32_t nd2 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n2, lan, |
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126 |
Mac48Address("08:00:2e:00:00:02")); |
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127 |
|
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128 |
uint32_t nd3 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n3, lan, |
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129 |
Mac48Address("08:00:2e:00:00:03")); |
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130 |
// |
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131 |
// We've got the "hardware" in place. Now we need to add IP addresses. |
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132 |
// |
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133 |
NS_LOG_INFO ("Assign IP Addresses."); |
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134 |
// |
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|
135 |
// XXX BUGBUG |
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|
136 |
// Need a better way to get the interface index. The point-to-point topology |
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137 |
// as implemented can't return the index since it creates interfaces on both |
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138 |
// sides (i.e., it does AddIpv4Addresses, not AddIpv4Address). We need a |
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|
139 |
// method on Ipv4 to find the interface index corresponding to a given ipv4 |
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140 |
// address. |
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|
141 |
// |
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|
142 |
// Assign IP addresses to the net devices and associated interfaces |
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143 |
// on the lan. The AddIpv4Address method returns an Ipv4 interface index |
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144 |
// which we do not need here. |
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145 |
// |
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146 |
CsmaIpv4Topology::AddIpv4Address (n0, nd0, Ipv4Address("10.1.1.1"), |
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147 |
Ipv4Mask("255.255.255.0")); |
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|
148 |
|
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149 |
CsmaIpv4Topology::AddIpv4Address (n1, nd1, Ipv4Address("10.1.1.2"), |
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150 |
Ipv4Mask("255.255.255.0")); |
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|
151 |
|
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152 |
CsmaIpv4Topology::AddIpv4Address (n2, nd2, Ipv4Address("10.1.1.3"), |
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153 |
Ipv4Mask("255.255.255.0")); |
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|
154 |
|
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|
155 |
CsmaIpv4Topology::AddIpv4Address (n3, nd3, Ipv4Address("10.1.1.4"), |
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|
156 |
Ipv4Mask("255.255.255.0")); |
1497 | 157 |
|
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158 |
NS_LOG_INFO ("Create Applications."); |
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159 |
// |
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160 |
// Create a UdpEchoServer application on node one. |
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161 |
// |
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162 |
uint16_t port = 9; // well-known echo port number |
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163 |
|
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164 |
Ptr<UdpEchoServer> server = CreateObject<UdpEchoServer> ("Port", Uinteger (port)); |
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165 |
n1->AddApplication (server); |
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166 |
// |
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167 |
// Create a UdpEchoClient application to send UDP datagrams from node zero to |
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168 |
// node one. |
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169 |
// |
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170 |
uint32_t packetSize = 1024; |
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171 |
uint32_t maxPacketCount = 1; |
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172 |
Time interPacketInterval = Seconds (1.); |
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173 |
|
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|
174 |
Ptr<UdpEchoClient> client = |
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175 |
CreateObject<UdpEchoClient> ("RemoteIpv4", Ipv4Address ("10.1.1.2"), |
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176 |
"RemotePort", Uinteger (port), |
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177 |
"MaxPackets", Uinteger (maxPacketCount), |
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178 |
"Interval", interPacketInterval, |
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179 |
"PacketSize", Uinteger (packetSize)); |
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|
180 |
n0->AddApplication (client); |
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181 |
// |
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182 |
// Tell the applications when to start and stop. |
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|
183 |
// |
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|
184 |
server->Start(Seconds(1.)); |
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185 |
client->Start(Seconds(2.)); |
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|
186 |
|
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|
187 |
server->Stop (Seconds(10.)); |
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|
188 |
client->Stop (Seconds(10.)); |
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|
189 |
// |
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|
190 |
// Configure tracing of all enqueue, dequeue, and NetDevice receive events. |
1497 | 191 |
// Trace output will be sent to the file "udp-echo.tr" |
1496
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|
192 |
// |
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|
193 |
NS_LOG_INFO ("Configure Tracing."); |
1497 | 194 |
AsciiTrace asciitrace ("udp-echo.tr"); |
1496
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|
195 |
asciitrace.TraceAllNetDeviceRx (); |
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|
196 |
asciitrace.TraceAllQueues (); |
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|
197 |
// |
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|
198 |
// Also configure some tcpdump traces; each interface will be traced. |
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|
199 |
// The output files will be named: |
1497 | 200 |
// udp-echo.pcap-<nodeId>-<interfaceId> |
1496
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|
201 |
// and can be read by the "tcpdump -r" command (use "-tt" option to |
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|
202 |
// display timestamps correctly) |
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|
203 |
// |
1497 | 204 |
PcapTrace pcaptrace ("udp-echo.pcap"); |
1496
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|
205 |
pcaptrace.TraceAllIp (); |
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|
206 |
// |
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|
207 |
// Now, do the actual simulation. |
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|
208 |
// |
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|
209 |
NS_LOG_INFO ("Run Simulation."); |
1496
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|
210 |
Simulator::Run (); |
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changeset
|
211 |
Simulator::Destroy (); |
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|
212 |
NS_LOG_INFO ("Done."); |
1496
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|
213 |
} |