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csma-ping.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * This program is free software; you can redistribute it and/or modify
4  * it under the terms of the GNU General Public License version 2 as
5  * published by the Free Software Foundation;
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7  * This program is distributed in the hope that it will be useful,
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9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10  * GNU General Public License for more details.
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13  * along with this program; if not, write to the Free Software
14  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15  */
16 
17 // Network topology
18 //
19 // n0 n1 n2 n3
20 // | | | |
21 // =====================
22 //
23 // node n0,n1,n3 pings to node n2
24 // node n0 generates protocol 2 (IGMP) to node n3
25 
26 #include <iostream>
27 #include <fstream>
28 #include <string>
29 #include <cassert>
30 
31 #include "ns3/core-module.h"
32 #include "ns3/network-module.h"
33 #include "ns3/csma-module.h"
34 #include "ns3/applications-module.h"
35 #include "ns3/internet-module.h"
36 
37 using namespace ns3;
38 
39 NS_LOG_COMPONENT_DEFINE ("CsmaPingExample");
40 
41 static void SinkRx (Ptr<const Packet> p, const Address &ad)
42 {
43  //std::cout << *p << std::endl;
44 }
45 
46 static void PingRtt (std::string context, Time rtt)
47 {
48  //std::cout << context << " " << rtt << std::endl;
49 }
50 
51 int
52 main (int argc, char *argv[])
53 {
54 
55  CommandLine cmd;
56  cmd.Parse (argc, argv);
57 
58  // Here, we will explicitly create four nodes.
59  NS_LOG_INFO ("Create nodes.");
60  NodeContainer c;
61  c.Create (4);
62 
63  // connect all our nodes to a shared channel.
64  NS_LOG_INFO ("Build Topology.");
65  CsmaHelper csma;
66  csma.SetChannelAttribute ("DataRate", DataRateValue (DataRate (5000000)));
67  csma.SetChannelAttribute ("Delay", TimeValue (MilliSeconds (2)));
68  csma.SetDeviceAttribute ("EncapsulationMode", StringValue ("Llc"));
69  NetDeviceContainer devs = csma.Install (c);
70 
71  // add an ip stack to all nodes.
72  NS_LOG_INFO ("Add ip stack.");
73  InternetStackHelper ipStack;
74  ipStack.Install (c);
75 
76  // assign ip addresses
77  NS_LOG_INFO ("Assign ip addresses.");
78  Ipv4AddressHelper ip;
79  ip.SetBase ("192.168.1.0", "255.255.255.0");
80  Ipv4InterfaceContainer addresses = ip.Assign (devs);
81 
82  NS_LOG_INFO ("Create Source");
83  Config::SetDefault ("ns3::Ipv4RawSocketImpl::Protocol", StringValue ("2"));
84  InetSocketAddress dst = InetSocketAddress (addresses.GetAddress (3));
85  OnOffHelper onoff = OnOffHelper ("ns3::Ipv4RawSocketFactory", dst);
86  onoff.SetConstantRate (DataRate (15000));
87  onoff.SetAttribute ("PacketSize", UintegerValue (1200));
88 
89 
90  ApplicationContainer apps = onoff.Install (c.Get (0));
91  apps.Start (Seconds (1.0));
92  apps.Stop (Seconds (10.0));
93 
94  NS_LOG_INFO ("Create Sink.");
95  PacketSinkHelper sink = PacketSinkHelper ("ns3::Ipv4RawSocketFactory", dst);
96  apps = sink.Install (c.Get (3));
97  apps.Start (Seconds (0.0));
98  apps.Stop (Seconds (11.0));
99 
100  NS_LOG_INFO ("Create pinger");
101  V4PingHelper ping = V4PingHelper (addresses.GetAddress (2));
102  NodeContainer pingers;
103  pingers.Add (c.Get (0));
104  pingers.Add (c.Get (1));
105  pingers.Add (c.Get (3));
106  apps = ping.Install (pingers);
107  apps.Start (Seconds (2.0));
108  apps.Stop (Seconds (5.0));
109 
110  NS_LOG_INFO ("Configure Tracing.");
111  // first, pcap tracing in non-promiscuous mode
112  csma.EnablePcapAll ("csma-ping", false);
113 
114  // then, print what the packet sink receives.
115  Config::ConnectWithoutContext ("/NodeList/3/ApplicationList/0/$ns3::PacketSink/Rx",
116  MakeCallback (&SinkRx));
117  // finally, print the ping rtts.
118  Config::Connect ("/NodeList/*/ApplicationList/*/$ns3::V4Ping/Rtt",
119  MakeCallback (&PingRtt));
120 
121  Packet::EnablePrinting ();
122 
123 
124  NS_LOG_INFO ("Run Simulation.");
125  Simulator::Run ();
126  Simulator::Destroy ();
127  NS_LOG_INFO ("Done.");
128 }