A Discrete-Event Network Simulator
API
global-routing-slash32.cc
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16 
17 // Test program for this 3-router scenario, using global routing
18 //
19 // (a.a.a.a/32)A<--x.x.x.0/30-->B<--y.y.y.0/30-->C(c.c.c.c/32)
20 
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"
28 
29 #include <cassert>
30 #include <fstream>
31 #include <iostream>
32 #include <string>
33 
34 using namespace ns3;
35 
36 NS_LOG_COMPONENT_DEFINE("GlobalRouterSlash32Test");
37 
38 int
39 main(int argc, char* argv[])
40 {
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);
45 
46  Ptr<Node> nA = CreateObject<Node>();
47  Ptr<Node> nB = CreateObject<Node>();
48  Ptr<Node> nC = CreateObject<Node>();
49 
50  NodeContainer c = NodeContainer(nA, nB, nC);
51 
53  internet.Install(c);
54 
55  // Point-to-point links
56  NodeContainer nAnB = NodeContainer(nA, nB);
57  NodeContainer nBnC = NodeContainer(nB, nC);
58 
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);
64 
65  NetDeviceContainer dBdC = p2p.Install(nBnC);
66 
67  Ptr<CsmaNetDevice> deviceA = CreateObject<CsmaNetDevice>();
68  deviceA->SetAddress(Mac48Address::Allocate());
69  nA->AddDevice(deviceA);
70  deviceA->SetQueue(CreateObject<DropTailQueue<Packet>>());
71 
72  Ptr<CsmaNetDevice> deviceC = CreateObject<CsmaNetDevice>();
73  deviceC->SetAddress(Mac48Address::Allocate());
74  nC->AddDevice(deviceC);
75  deviceC->SetQueue(CreateObject<DropTailQueue<Packet>>());
76 
77  // Later, we add IP addresses.
79  ipv4.SetBase("10.1.1.0", "255.255.255.252");
80  Ipv4InterfaceContainer iAiB = ipv4.Assign(dAdB);
81 
82  ipv4.SetBase("10.1.1.4", "255.255.255.252");
83  Ipv4InterfaceContainer iBiC = ipv4.Assign(dBdC);
84 
85  Ptr<Ipv4> ipv4A = nA->GetObject<Ipv4>();
86  Ptr<Ipv4> ipv4C = nC->GetObject<Ipv4>();
87 
88  int32_t ifIndexA = ipv4A->AddInterface(deviceA);
89  int32_t ifIndexC = ipv4C->AddInterface(deviceC);
90 
91  Ipv4InterfaceAddress ifInAddrA =
92  Ipv4InterfaceAddress(Ipv4Address("172.16.1.1"), Ipv4Mask("255.255.255.255"));
93  ipv4A->AddAddress(ifIndexA, ifInAddrA);
94  ipv4A->SetMetric(ifIndexA, 1);
95  ipv4A->SetUp(ifIndexA);
96 
97  Ipv4InterfaceAddress ifInAddrC =
98  Ipv4InterfaceAddress(Ipv4Address("192.168.1.1"), Ipv4Mask("255.255.255.255"));
99  ipv4C->AddAddress(ifIndexC, ifInAddrC);
100  ipv4C->SetMetric(ifIndexC, 1);
101  ipv4C->SetUp(ifIndexC);
102 
103  // Create router nodes, initialize routing database and set up the routing
104  // tables in the nodes.
106 
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));
116 
117  // Create a packet sink to receive these packets
118  PacketSinkHelper sink("ns3::UdpSocketFactory",
120  apps = sink.Install(nC);
121  apps.Start(Seconds(1.0));
122  apps.Stop(Seconds(10.0));
123 
124  AsciiTraceHelper ascii;
125  p2p.EnableAsciiAll(ascii.CreateFileStream("global-routing-slash32.tr"));
126  p2p.EnablePcapAll("global-routing-slash32");
127 
128  Simulator::Run();
130 
131  return 0;
132 }
a polymophic address class
Definition: address.h:101
holds a vector of ns3::Application pointers.
void Start(Time start) const
Start all of the Applications in this container at the start time given as a parameter.
void Stop(Time stop) const
Arrange for all of the Applications in this container to Stop() at the Time given as a parameter.
Manage ASCII trace files for device models.
Definition: trace-helper.h:174
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
A FIFO packet queue that drops tail-end packets on overflow.
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.
Ipv4 addresses are stored in host order in this class.
Definition: ipv4-address.h:42
static Ipv4Address GetAny()
static void PopulateRoutingTables()
Build a routing database and initialize the routing tables of the nodes in the simulation.
Access to the IPv4 forwarding table, interfaces, and configuration.
Definition: ipv4.h:80
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:257
static Mac48Address Allocate()
Allocate a new Mac48Address.
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.
Build a set of PointToPointNetDevice objects.
static void Destroy()
Execute the events scheduled with ScheduleDestroy().
Definition: simulator.cc:142
static void Run()
Run the simulation.
Definition: simulator.cc:178
Hold variables of type string.
Definition: string.h:56
uint16_t port
Definition: dsdv-manet.cc:44
#define NS_LOG_COMPONENT_DEFINE(name)
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:327
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:1326
Every class exported by the ns3 library is enclosed in the ns3 namespace.
cmd
Definition: second.py:40
Ptr< PacketSink > sink
Pointer to the packet sink application.
Definition: wifi-tcp.cc:55