A Discrete-Event Network Simulator
API
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Properties Friends Macros Groups Pages
fragmentation-ipv6.cc
Go to the documentation of this file.
1 /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2008-2009 Strasbourg University
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation;
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  *
18  * Author: David Gross <gdavid.devel@gmail.com>
19  * Sebastien Vincent <vincent@clarinet.u-strasbg.fr>
20  */
21 
22 // Network topology
23 // //
24 // // n0 r n1
25 // // | _ |
26 // // ====|_|====
27 // // router
28 // //
29 // // - Tracing of queues and packet receptions to file "fragmentation-ipv6.tr"
30 
31 #include <fstream>
32 #include "ns3/core-module.h"
33 #include "ns3/internet-module.h"
34 #include "ns3/csma-module.h"
35 #include "ns3/applications-module.h"
36 #include "ns3/ipv6-static-routing-helper.h"
37 
38 #include "ns3/ipv6-routing-table-entry.h"
39 
40 using namespace ns3;
41 
42 NS_LOG_COMPONENT_DEFINE ("FragmentationIpv6Example");
43 
44 
45 int main (int argc, char** argv)
46 {
47  bool verbose = false;
48 
49  CommandLine cmd;
50  cmd.AddValue ("verbose", "turn on log components", verbose);
51  cmd.Parse (argc, argv);
52 
53  if (verbose)
54  {
55  LogComponentEnable ("Ipv6L3Protocol", LOG_LEVEL_ALL);
56  LogComponentEnable ("Icmpv6L4Protocol", LOG_LEVEL_ALL);
57  LogComponentEnable ("Ipv6StaticRouting", LOG_LEVEL_ALL);
58  LogComponentEnable ("Ipv6Interface", LOG_LEVEL_ALL);
59  LogComponentEnable ("Ping6Application", LOG_LEVEL_ALL);
60  }
61 
62  NS_LOG_INFO ("Create nodes.");
63  Ptr<Node> n0 = CreateObject<Node> ();
64  Ptr<Node> r = CreateObject<Node> ();
65  Ptr<Node> n1 = CreateObject<Node> ();
66 
67  NodeContainer net1 (n0, r);
68  NodeContainer net2 (r, n1);
69  NodeContainer all (n0, r, n1);
70 
71  NS_LOG_INFO ("Create IPv6 Internet Stack");
72  InternetStackHelper internetv6;
73  internetv6.Install (all);
74 
75  NS_LOG_INFO ("Create channels.");
76  CsmaHelper csma;
77  csma.SetChannelAttribute ("DataRate", DataRateValue (5000000));
78  csma.SetChannelAttribute ("Delay", TimeValue (MilliSeconds (2)));
79  NetDeviceContainer d1 = csma.Install (net1);
80  NetDeviceContainer d2 = csma.Install (net2);
81 
82  NS_LOG_INFO ("Create networks and assign IPv6 Addresses.");
83  Ipv6AddressHelper ipv6;
84  ipv6.SetBase (Ipv6Address ("2001:1::"), Ipv6Prefix (64));
85  Ipv6InterfaceContainer i1 = ipv6.Assign (d1);
86  i1.SetForwarding (1, true);
87  i1.SetDefaultRouteInAllNodes (1);
88  ipv6.SetBase (Ipv6Address ("2001:2::"), Ipv6Prefix (64));
89  Ipv6InterfaceContainer i2 = ipv6.Assign (d2);
90  i2.SetForwarding (0, true);
91  i2.SetDefaultRouteInAllNodes (0);
92 
93  Ipv6StaticRoutingHelper routingHelper;
94  Ptr<OutputStreamWrapper> routingStream = Create<OutputStreamWrapper> (&std::cout);
95  routingHelper.PrintRoutingTableAt (Seconds (0), n0, routingStream);
96 
97  /* Create a Ping6 application to send ICMPv6 echo request from n0 to n1 via r */
98  uint32_t packetSize = 4096;
99  uint32_t maxPacketCount = 5;
100  Time interPacketInterval = Seconds (1.0);
101  Ping6Helper ping6;
102 
103  ping6.SetLocal (i1.GetAddress (0, 1));
104  ping6.SetRemote (i2.GetAddress (1, 1));
105 
106  ping6.SetAttribute ("MaxPackets", UintegerValue (maxPacketCount));
107  ping6.SetAttribute ("Interval", TimeValue (interPacketInterval));
108  ping6.SetAttribute ("PacketSize", UintegerValue (packetSize));
109  ApplicationContainer apps = ping6.Install (net1.Get (0));
110  apps.Start (Seconds (2.0));
111  apps.Stop (Seconds (20.0));
112 
113  AsciiTraceHelper ascii;
114  csma.EnableAsciiAll (ascii.CreateFileStream ("fragmentation-ipv6.tr"));
115  csma.EnablePcapAll (std::string ("fragmentation-ipv6"), true);
116 
117  NS_LOG_INFO ("Run Simulation.");
118  Simulator::Run ();
119  Simulator::Destroy ();
120  NS_LOG_INFO ("Done.");
121 }
122