A Discrete-Event Network Simulator
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second.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/csma-module.h"
20 #include "ns3/internet-module.h"
21 #include "ns3/point-to-point-module.h"
22 #include "ns3/applications-module.h"
23 #include "ns3/ipv4-global-routing-helper.h"
24 
25 // Default Network Topology
26 //
27 // 10.1.1.0
28 // n0 -------------- n1 n2 n3 n4
29 // point-to-point | | | |
30 // ================
31 // LAN 10.1.2.0
32 
33 
34 using namespace ns3;
35 
36 NS_LOG_COMPONENT_DEFINE ("SecondScriptExample");
37 
38 int
39 main (int argc, char *argv[])
40 {
41  bool verbose = true;
42  uint32_t nCsma = 3;
43 
44  CommandLine cmd;
45  cmd.AddValue ("nCsma", "Number of \"extra\" CSMA nodes/devices", nCsma);
46  cmd.AddValue ("verbose", "Tell echo applications to log if true", verbose);
47 
48  cmd.Parse (argc,argv);
49 
50  if (verbose)
51  {
52  LogComponentEnable ("UdpEchoClientApplication", LOG_LEVEL_INFO);
53  LogComponentEnable ("UdpEchoServerApplication", LOG_LEVEL_INFO);
54  }
55 
56  nCsma = nCsma == 0 ? 1 : nCsma;
57 
58  NodeContainer p2pNodes;
59  p2pNodes.Create (2);
60 
61  NodeContainer csmaNodes;
62  csmaNodes.Add (p2pNodes.Get (1));
63  csmaNodes.Create (nCsma);
64 
65  PointToPointHelper pointToPoint;
66  pointToPoint.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));
67  pointToPoint.SetChannelAttribute ("Delay", StringValue ("2ms"));
68 
69  NetDeviceContainer p2pDevices;
70  p2pDevices = pointToPoint.Install (p2pNodes);
71 
72  CsmaHelper csma;
73  csma.SetChannelAttribute ("DataRate", StringValue ("100Mbps"));
74  csma.SetChannelAttribute ("Delay", TimeValue (NanoSeconds (6560)));
75 
76  NetDeviceContainer csmaDevices;
77  csmaDevices = csma.Install (csmaNodes);
78 
79  InternetStackHelper stack;
80  stack.Install (p2pNodes.Get (0));
81  stack.Install (csmaNodes);
82 
83  Ipv4AddressHelper address;
84  address.SetBase ("10.1.1.0", "255.255.255.0");
85  Ipv4InterfaceContainer p2pInterfaces;
86  p2pInterfaces = address.Assign (p2pDevices);
87 
88  address.SetBase ("10.1.2.0", "255.255.255.0");
89  Ipv4InterfaceContainer csmaInterfaces;
90  csmaInterfaces = address.Assign (csmaDevices);
91 
92  UdpEchoServerHelper echoServer (9);
93 
94  ApplicationContainer serverApps = echoServer.Install (csmaNodes.Get (nCsma));
95  serverApps.Start (Seconds (1.0));
96  serverApps.Stop (Seconds (10.0));
97 
98  UdpEchoClientHelper echoClient (csmaInterfaces.GetAddress (nCsma), 9);
99  echoClient.SetAttribute ("MaxPackets", UintegerValue (1));
100  echoClient.SetAttribute ("Interval", TimeValue (Seconds (1.0)));
101  echoClient.SetAttribute ("PacketSize", UintegerValue (1024));
102 
103  ApplicationContainer clientApps = echoClient.Install (p2pNodes.Get (0));
104  clientApps.Start (Seconds (2.0));
105  clientApps.Stop (Seconds (10.0));
106 
107  Ipv4GlobalRoutingHelper::PopulateRoutingTables ();
108 
109  pointToPoint.EnablePcapAll ("second");
110  csma.EnablePcap ("second", csmaDevices.Get (1), true);
111 
112  Simulator::Run ();
113  Simulator::Destroy ();
114  return 0;
115 }