examples/csma-broadcast.cc
author Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
Tue, 06 Nov 2007 16:16:18 +0100
changeset 2084 24cfc21bda99
parent 1514 addb79f47ba5
child 2230 9f13ac3291e0
permissions -rw-r--r--
use the holland set of modes.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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// Example of the sending of a datagram to a broadcast address
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//
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// Network topology
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//     ==============
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//       |          |
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//       n0    n1   n2   
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//       |     |       
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//     ==========
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//
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//   n0 originates UDP broadcast to 255.255.255.255/discard port, which 
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//   is replicated and received on both n1 and n2
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <cassert>
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#include "ns3/command-line.h"
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#include "ns3/default-value.h"
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#include "ns3/ptr.h"
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#include "ns3/random-variable.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/onoff-application.h"
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#include "ns3/packet-sink.h"
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using namespace ns3;
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NS_LOG_COMPONENT_DEFINE ("CsmaBroadcastExample");
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int 
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main (int argc, char *argv[])
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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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#if 0
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  LogComponentEnable ("CsmaBroadcastExample", LOG_LEVEL_INFO);
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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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    84
  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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    88
  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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    91
  // Enable the below logging command to see the packets being received
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  LogComponentEnable("PacketSinkApplication", LOG_LEVEL_ALL);
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    93
#endif
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    94
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    95
  // Set up some default values for the simulation.  Use the Bind()
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    96
  // technique to tell the system what subclass of Queue to use,
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    97
  // and what the queue limit is
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    98
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    99
  // The below Bind command tells the queue factory which class to
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   100
  // instantiate, when the queue factory is invoked in the topology code
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   101
  DefaultValue::Bind ("Queue", "DropTailQueue");
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   102
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   103
  // Allow the user to override any of the defaults and the above
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   104
  // Bind()s at run-time, via command-line arguments
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   105
  CommandLine::Parse (argc, argv);
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   106
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   107
  // Here, we will explicitly create four nodes.  In more sophisticated
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   108
  // topologies, we could configure a node factory.
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   109
  NS_LOG_INFO ("Create nodes.");
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   110
  Ptr<Node> n0 = Create<InternetNode> ();
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   111
  Ptr<Node> n1 = Create<InternetNode> (); 
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   112
  Ptr<Node> n2 = Create<InternetNode> (); 
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   113
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   114
  // We create the channels first without any IP addressing information
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   115
  NS_LOG_INFO ("Create channels.");
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   116
  Ptr<CsmaChannel> channel0 = 
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   117
    CsmaTopology::CreateCsmaChannel(
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   118
      DataRate(5000000), MilliSeconds(2));
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   119
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   120
  // We create the channels first without any IP addressing information
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  Ptr<CsmaChannel> channel1 = 
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   122
    CsmaTopology::CreateCsmaChannel(
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   123
      DataRate(5000000), MilliSeconds(2));
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   124
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   125
  NS_LOG_INFO ("Build Topology.");
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  uint32_t n0ifIndex0 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n0, channel0, 
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   127
                                         Mac48Address("10:54:23:54:0:50"));
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  uint32_t n0ifIndex1 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n0, channel1, 
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                                         Mac48Address("10:54:23:54:0:51"));
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  uint32_t n1ifIndex = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n1, channel0,
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                                         Mac48Address("10:54:23:54:23:51"));
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  uint32_t n2ifIndex = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n2, channel1,
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                                         Mac48Address("10:54:23:54:23:52"));
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   134
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   135
  // Later, we add IP addresses.  
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   136
  NS_LOG_INFO ("Assign IP Addresses.");
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   137
  CsmaIpv4Topology::AddIpv4Address (
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   138
      n0, n0ifIndex0, Ipv4Address("10.1.0.1"), Ipv4Mask("255.255.0.0"));
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   139
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   140
  CsmaIpv4Topology::AddIpv4Address (
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   141
      n1, n1ifIndex, Ipv4Address("10.1.0.2"), Ipv4Mask("255.255.0.0"));
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   142
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   143
  CsmaIpv4Topology::AddIpv4Address (
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   144
      n0, n0ifIndex1, Ipv4Address("192.168.1.1"), Ipv4Mask("255.255.255.0"));
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   145
  
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   146
  CsmaIpv4Topology::AddIpv4Address (
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   147
      n2, n2ifIndex, Ipv4Address("192.168.1.2"), Ipv4Mask("255.255.255.0"));
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   148
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   149
  // RFC 863 discard port ("9") indicates packet should be thrown away
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   150
  // by the system.  We allow this silent discard to be overridden
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   151
  // by the PacketSink application.
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   152
  uint16_t port = 9;
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   153
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   154
  // Create the OnOff application to send UDP datagrams of size
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   155
  // 512 bytes (default) at a rate of 500 Kb/s (default) from n0
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   156
  NS_LOG_INFO ("Create Applications.");
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   157
  Ptr<OnOffApplication> ooff = Create<OnOffApplication> (
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   158
    n0, 
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   159
    InetSocketAddress ("255.255.255.255", port), 
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   160
    "Udp",
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   161
    ConstantVariable(1), 
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   162
    ConstantVariable(0));
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   163
  // Start the application
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   164
  ooff->Start(Seconds(1.0));
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  ooff->Stop (Seconds(10.0));
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  // Create an optional packet sink to receive these packets
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  Ptr<PacketSink> sink = Create<PacketSink> (
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    n1,
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    InetSocketAddress (Ipv4Address::GetAny (), port),
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    "Udp");
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  // Start the sink
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  sink->Start (Seconds (1.0));
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  sink->Stop (Seconds (10.0));
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  // Create an optional packet sink to receive these packets
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  sink = Create<PacketSink> (
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    n2,
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    InetSocketAddress (Ipv4Address::GetAny (), port),
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    "Udp");
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  // Start the sink
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  sink->Start (Seconds (1.0));
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  sink->Stop (Seconds (10.0));
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  NS_LOG_INFO ("Configure Tracing.");
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  // Configure tracing of all enqueue, dequeue, and NetDevice receive events
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  // Trace output will be sent to the csma-broadcast.tr file
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  AsciiTrace asciitrace ("csma-broadcast.tr");
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  asciitrace.TraceAllNetDeviceRx ();
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  asciitrace.TraceAllQueues ();
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  // Also configure some tcpdump traces; each interface will be traced
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  // The output files will be named 
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  // simple-point-to-point.pcap-<nodeId>-<interfaceId>
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  // and can be read by the "tcpdump -r" command (use "-tt" option to
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  // display timestamps correctly)
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  PcapTrace pcaptrace ("csma-broadcast.pcap");
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  pcaptrace.TraceAllIp ();
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  NS_LOG_INFO ("Run Simulation.");
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  Simulator::Run ();    
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  Simulator::Destroy ();
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  NS_LOG_INFO ("Done.");
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}