A Discrete-Event Network Simulator
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17// Test program for this 3-router scenario, using global routing
19// (a.a.a.a/32)A<--x.x.x.0/30-->B<--y.y.y.0/30-->C(c.c.c.c/32)
21#include "ns3/applications-module.h"
22#include "ns3/core-module.h"
23#include "ns3/csma-net-device.h"
24#include "ns3/internet-module.h"
25#include "ns3/ipv4-global-routing-helper.h"
26#include "ns3/network-module.h"
27#include "ns3/point-to-point-module.h"
29#include <cassert>
30#include <fstream>
31#include <iostream>
32#include <string>
34using namespace ns3;
39main(int argc, char* argv[])
41 // Allow the user to override any of the defaults and the above
42 // DefaultValue::Bind ()s at run-time, via command-line arguments
43 CommandLine cmd(__FILE__);
44 cmd.Parse(argc, argv);
46 Ptr<Node> nA = CreateObject<Node>();
47 Ptr<Node> nB = CreateObject<Node>();
48 Ptr<Node> nC = CreateObject<Node>();
50 NodeContainer c = NodeContainer(nA, nB, nC);
52 InternetStackHelper internet;
53 internet.Install(c);
55 // Point-to-point links
56 NodeContainer nAnB = NodeContainer(nA, nB);
57 NodeContainer nBnC = NodeContainer(nB, nC);
59 // We create the channels first without any IP addressing information
61 p2p.SetDeviceAttribute("DataRate", StringValue("5Mbps"));
62 p2p.SetChannelAttribute("Delay", StringValue("2ms"));
63 NetDeviceContainer dAdB = p2p.Install(nAnB);
65 NetDeviceContainer dBdC = p2p.Install(nBnC);
67 Ptr<CsmaNetDevice> deviceA = CreateObject<CsmaNetDevice>();
68 deviceA->SetAddress(Mac48Address::Allocate());
69 nA->AddDevice(deviceA);
70 deviceA->SetQueue(CreateObject<DropTailQueue<Packet>>());
72 Ptr<CsmaNetDevice> deviceC = CreateObject<CsmaNetDevice>();
73 deviceC->SetAddress(Mac48Address::Allocate());
74 nC->AddDevice(deviceC);
75 deviceC->SetQueue(CreateObject<DropTailQueue<Packet>>());
77 // Later, we add IP addresses.
79 ipv4.SetBase("", "");
80 Ipv4InterfaceContainer iAiB = ipv4.Assign(dAdB);
82 ipv4.SetBase("", "");
83 Ipv4InterfaceContainer iBiC = ipv4.Assign(dBdC);
85 Ptr<Ipv4> ipv4A = nA->GetObject<Ipv4>();
86 Ptr<Ipv4> ipv4C = nC->GetObject<Ipv4>();
88 int32_t ifIndexA = ipv4A->AddInterface(deviceA);
89 int32_t ifIndexC = ipv4C->AddInterface(deviceC);
91 Ipv4InterfaceAddress ifInAddrA =
92 Ipv4InterfaceAddress(Ipv4Address(""), Ipv4Mask(""));
93 ipv4A->AddAddress(ifIndexA, ifInAddrA);
94 ipv4A->SetMetric(ifIndexA, 1);
95 ipv4A->SetUp(ifIndexA);
97 Ipv4InterfaceAddress ifInAddrC =
98 Ipv4InterfaceAddress(Ipv4Address(""), Ipv4Mask(""));
99 ipv4C->AddAddress(ifIndexC, ifInAddrC);
100 ipv4C->SetMetric(ifIndexC, 1);
101 ipv4C->SetUp(ifIndexC);
103 // Create router nodes, initialize routing database and set up the routing
104 // tables in the nodes.
105 Ipv4GlobalRoutingHelper::PopulateRoutingTables();
107 // Create the OnOff application to send UDP datagrams of size
108 // 210 bytes at a rate of 448 Kb/s
109 uint16_t port = 9; // Discard port (RFC 863)
110 OnOffHelper onoff("ns3::UdpSocketFactory",
111 Address(InetSocketAddress(ifInAddrC.GetLocal(), port)));
112 onoff.SetConstantRate(DataRate(6000));
113 ApplicationContainer apps = onoff.Install(nA);
114 apps.Start(Seconds(1.0));
115 apps.Stop(Seconds(10.0));
117 // Create a packet sink to receive these packets
118 PacketSinkHelper sink("ns3::UdpSocketFactory",
119 Address(InetSocketAddress(Ipv4Address::GetAny(), port)));
120 apps = sink.Install(nC);
121 apps.Start(Seconds(1.0));
122 apps.Stop(Seconds(10.0));
124 AsciiTraceHelper ascii;
125 p2p.EnableAsciiAll(ascii.CreateFileStream("global-routing-slash32.tr"));
126 p2p.EnablePcapAll("global-routing-slash32");
128 Simulator::Run();
129 Simulator::Destroy();
131 return 0;
a polymophic address class
Definition: address.h:100
holds a vector of ns3::Application pointers.
void Start(Time start)
Start all of the Applications in this container at the start time given as a parameter.
void Stop(Time stop)
Arrange for all of the Applications in this container to Stop() at the Time given as a parameter.
void EnableAsciiAll(std::string prefix)
Enable ascii trace output on each device (which is of the appropriate type) in the set of all nodes c...
Manage ASCII trace files for device models.
Definition: trace-helper.h:173
Ptr< OutputStreamWrapper > CreateFileStream(std::string filename, std::ios::openmode filemode=std::ios::out)
Create and initialize an output stream object we'll use to write the traced bits.
Parse command-line arguments.
Definition: command-line.h:232
an Inet address class
aggregate IP/TCP/UDP functionality to existing Nodes.
void Install(std::string nodeName) const
Aggregate implementations of the ns3::Ipv4, ns3::Ipv6, ns3::Udp, and ns3::Tcp classes onto the provid...
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
void SetBase(Ipv4Address network, Ipv4Mask mask, Ipv4Address base="")
Set the base network number, network mask and base address.
Ipv4InterfaceContainer Assign(const NetDeviceContainer &c)
Assign IP addresses to the net devices specified in the container based on the current network prefix...
Ipv4 addresses are stored in host order in this class.
Definition: ipv4-address.h:43
Access to the IPv4 forwarding table, interfaces, and configuration.
Definition: ipv4.h:79
a class to store IPv4 address information on an interface
Ipv4Address GetLocal() const
Get the local address.
holds a vector of std::pair of Ptr<Ipv4> and interface index.
a class to represent an Ipv4 address mask
Definition: ipv4-address.h:258
holds a vector of ns3::NetDevice pointers
keep track of a set of node pointers.
uint32_t AddDevice(Ptr< NetDevice > device)
Associate a NetDevice to this node.
Definition: node.cc:138
Ptr< T > GetObject() const
Get a pointer to the requested aggregated Object.
Definition: object.h:471
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.
void EnablePcapAll(std::string prefix, bool promiscuous=false)
Enable pcap output on each device (which is of the appropriate type) in the set of all nodes created ...
Build a set of PointToPointNetDevice objects.
void SetDeviceAttribute(std::string name, const AttributeValue &value)
Set an attribute value to be propagated to each NetDevice created by the helper.
void SetChannelAttribute(std::string name, const AttributeValue &value)
Set an attribute value to be propagated to each Channel created by the helper.
NetDeviceContainer Install(NodeContainer c)
Hold variables of type string.
Definition: string.h:56
uint16_t port
Definition: dsdv-manet.cc:45
Define a Log component with a specific name.
Definition: log.h:202
void(* DataRate)(DataRate oldValue, DataRate newValue)
TracedValue callback signature for DataRate.
Definition: data-rate.h:328
Ptr< T > CreateObject(Args &&... args)
Create an object by type, with varying number of constructor parameters.
Definition: object.h:579
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1336
Every class exported by the ns3 library is enclosed in the ns3 namespace.
Definition: second.py:33
Ptr< PacketSink > sink
Pointer to the packet sink application.
Definition: wifi-tcp.cc:55