A Discrete-Event Network Simulator
API
star.cc
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1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License version 2 as
4 * published by the Free Software Foundation;
5 *
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
10 *
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
14 *
15 */
16
17#include "ns3/applications-module.h"
18#include "ns3/core-module.h"
19#include "ns3/internet-module.h"
20#include "ns3/netanim-module.h"
21#include "ns3/network-module.h"
22#include "ns3/point-to-point-layout-module.h"
23#include "ns3/point-to-point-module.h"
24
25// Network topology (default)
26//
27// n2 n3 n4 .
28// \ | / .
29// \|/ .
30// n1--- n0---n5 .
31// /|\ .
32// / | \ .
33// n8 n7 n6 .
34//
35
36using namespace ns3;
37
39
40int
41main(int argc, char* argv[])
42{
43 //
44 // Set up some default values for the simulation.
45 //
46 Config::SetDefault("ns3::OnOffApplication::PacketSize", UintegerValue(137));
47
48 // ??? try and stick 15kb/s into the data rate
49 Config::SetDefault("ns3::OnOffApplication::DataRate", StringValue("14kb/s"));
50
51 //
52 // Default number of nodes in the star. Overridable by command line argument.
53 //
54 uint32_t nSpokes = 8;
55
56 CommandLine cmd(__FILE__);
57 cmd.AddValue("nSpokes", "Number of nodes to place in the star", nSpokes);
58 cmd.Parse(argc, argv);
59
60 NS_LOG_INFO("Build star topology.");
62 pointToPoint.SetDeviceAttribute("DataRate", StringValue("5Mbps"));
63 pointToPoint.SetChannelAttribute("Delay", StringValue("2ms"));
65
66 NS_LOG_INFO("Install internet stack on all nodes.");
67 InternetStackHelper internet;
68 star.InstallStack(internet);
69
70 NS_LOG_INFO("Assign IP Addresses.");
71 star.AssignIpv4Addresses(Ipv4AddressHelper("10.1.1.0", "255.255.255.0"));
72
73 NS_LOG_INFO("Create applications.");
74 //
75 // Create a packet sink on the star "hub" to receive packets.
76 //
77 uint16_t port = 50000;
78 Address hubLocalAddress(InetSocketAddress(Ipv4Address::GetAny(), port));
79 PacketSinkHelper packetSinkHelper("ns3::TcpSocketFactory", hubLocalAddress);
80 ApplicationContainer hubApp = packetSinkHelper.Install(star.GetHub());
81 hubApp.Start(Seconds(1.0));
82 hubApp.Stop(Seconds(10.0));
83
84 //
85 // Create OnOff applications to send TCP to the hub, one on each spoke node.
86 //
87 OnOffHelper onOffHelper("ns3::TcpSocketFactory", Address());
88 onOffHelper.SetAttribute("OnTime", StringValue("ns3::ConstantRandomVariable[Constant=1]"));
89 onOffHelper.SetAttribute("OffTime", StringValue("ns3::ConstantRandomVariable[Constant=0]"));
90
91 ApplicationContainer spokeApps;
92
93 for (uint32_t i = 0; i < star.SpokeCount(); ++i)
94 {
95 AddressValue remoteAddress(InetSocketAddress(star.GetHubIpv4Address(i), port));
96 onOffHelper.SetAttribute("Remote", remoteAddress);
97 spokeApps.Add(onOffHelper.Install(star.GetSpokeNode(i)));
98 }
99 spokeApps.Start(Seconds(1.0));
100 spokeApps.Stop(Seconds(10.0));
101
102 NS_LOG_INFO("Enable static global routing.");
103 //
104 // Turn on global static routing so we can actually be routed across the star.
105 //
106 Ipv4GlobalRoutingHelper::PopulateRoutingTables();
107
108 NS_LOG_INFO("Enable pcap tracing.");
109 //
110 // Do pcap tracing on all point-to-point devices on all nodes.
111 //
112 pointToPoint.EnablePcapAll("star");
113
114 NS_LOG_INFO("Run Simulation.");
115 Simulator::Run();
116 Simulator::Destroy();
117 NS_LOG_INFO("Done.");
118
119 return 0;
120}
a polymophic address class
Definition: address.h:92
AttributeValue implementation for Address.
holds a vector of ns3::Application pointers.
void Start(Time start)
Arrange for all of the Applications in this container to Start() at the Time given as a parameter.
void Add(ApplicationContainer other)
Append the contents of another ApplicationContainer to the end of this container.
void Stop(Time stop)
Arrange for all of the Applications in this container to Stop() at the Time given as a parameter.
Parse command-line arguments.
Definition: command-line.h:232
an Inet address class
aggregate IP/TCP/UDP functionality to existing Nodes.
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
A helper to make it easier to instantiate an ns3::OnOffApplication on a set of nodes.
Definition: on-off-helper.h:44
A helper to make it easier to instantiate an ns3::PacketSinkApplication on a set of nodes.
Build a set of PointToPointNetDevice objects.
A helper to make it easier to create a star topology with PointToPoint links.
Hold variables of type string.
Definition: string.h:42
Hold an unsigned integer type.
Definition: uinteger.h:45
uint16_t port
Definition: dsdv-manet.cc:45
void SetDefault(std::string name, const AttributeValue &value)
Definition: config.cc:891
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:202
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Definition: log.h:275
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1338
pointToPoint
Definition: first.py:31
Every class exported by the ns3 library is enclosed in the ns3 namespace.
cmd
Definition: second.py:33