A Discrete-Event Network Simulator
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nix-simple.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;
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10  * GNU General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
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 #include "ns3/core-module.h"
18 #include "ns3/network-module.h"
19 #include "ns3/internet-module.h"
20 #include "ns3/point-to-point-module.h"
21 #include "ns3/applications-module.h"
22 #include "ns3/ipv4-static-routing-helper.h"
23 #include "ns3/ipv4-list-routing-helper.h"
24 #include "ns3/ipv4-nix-vector-helper.h"
25 
26 /*
27  * Simple point to point links:
28  *
29  * n0 -- n1 -- n2 -- n3
30  *
31  * n0 has UdpEchoClient
32  * n3 has UdpEchoServer
33  *
34  * n0 IP: 10.1.1.1
35  * n1 IP: 10.1.1.2, 10.1.2.1
36  * n2 IP: 10.1.2.2, 10.1.3.1
37  * n3 IP: 10.1.3.2
38  *
39  */
40 
41 using namespace ns3;
42 
43 NS_LOG_COMPONENT_DEFINE ("NixSimpleExample");
44 
45 int
46 main (int argc, char *argv[])
47 {
48  LogComponentEnable ("UdpEchoClientApplication", LOG_LEVEL_INFO);
49  LogComponentEnable ("UdpEchoServerApplication", LOG_LEVEL_INFO);
50 
51  NodeContainer nodes12;
52  nodes12.Create (2);
53 
54  NodeContainer nodes23;
55  nodes23.Add (nodes12.Get (1));
56  nodes23.Create (1);
57 
58  NodeContainer nodes34;
59  nodes34.Add (nodes23.Get (1));
60  nodes34.Create (1);
61 
62  PointToPointHelper pointToPoint;
63  pointToPoint.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));
64  pointToPoint.SetChannelAttribute ("Delay", StringValue ("2ms"));
65 
66  NodeContainer allNodes = NodeContainer (nodes12, nodes23.Get (1), nodes34.Get (1));
67 
68  // NixHelper to install nix-vector routing
69  // on all nodes
70  Ipv4NixVectorHelper nixRouting;
71  Ipv4StaticRoutingHelper staticRouting;
72 
73  Ipv4ListRoutingHelper list;
74  list.Add (staticRouting, 0);
75  list.Add (nixRouting, 10);
76 
77  InternetStackHelper stack;
78  stack.SetRoutingHelper (list); // has effect on the next Install ()
79  stack.Install (allNodes);
80 
81  NetDeviceContainer devices12;
82  NetDeviceContainer devices23;
83  NetDeviceContainer devices34;
84  devices12 = pointToPoint.Install (nodes12);
85  devices23 = pointToPoint.Install (nodes23);
86  devices34 = pointToPoint.Install (nodes34);
87 
88  Ipv4AddressHelper address1;
89  address1.SetBase ("10.1.1.0", "255.255.255.0");
90  Ipv4AddressHelper address2;
91  address2.SetBase ("10.1.2.0", "255.255.255.0");
92  Ipv4AddressHelper address3;
93  address3.SetBase ("10.1.3.0", "255.255.255.0");
94 
95  address1.Assign (devices12);
96  address2.Assign (devices23);
97  Ipv4InterfaceContainer interfaces = address3.Assign (devices34);
98 
99  UdpEchoServerHelper echoServer (9);
100 
101  ApplicationContainer serverApps = echoServer.Install (nodes34.Get (1));
102  serverApps.Start (Seconds (1.0));
103  serverApps.Stop (Seconds (10.0));
104 
105  UdpEchoClientHelper echoClient (interfaces.GetAddress (1), 9);
106  echoClient.SetAttribute ("MaxPackets", UintegerValue (1));
107  echoClient.SetAttribute ("Interval", TimeValue (Seconds (1.)));
108  echoClient.SetAttribute ("PacketSize", UintegerValue (1024));
109 
110  ApplicationContainer clientApps = echoClient.Install (nodes12.Get (0));
111  clientApps.Start (Seconds (2.0));
112  clientApps.Stop (Seconds (10.0));
113 
114  // Trace routing tables
115  Ptr<OutputStreamWrapper> routingStream = Create<OutputStreamWrapper> ("nix-simple.routes", std::ios::out);
116  nixRouting.PrintRoutingTableAllAt (Seconds (8), routingStream);
117 
118  Simulator::Run ();
119  Simulator::Destroy ();
120  return 0;
121 }