A Discrete-Event Network Simulator
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18 // Test program for this 3-router scenario, using global routing
19 //
20 // (a.a.a.a/32)A<--x.x.x.0/30-->B<--y.y.y.0/30-->C(c.c.c.c/32)
22 #include <iostream>
23 #include <fstream>
24 #include <string>
25 #include <cassert>
27 #include "ns3/csma-net-device.h"
28 #include "ns3/core-module.h"
29 #include "ns3/network-module.h"
30 #include "ns3/internet-module.h"
31 #include "ns3/point-to-point-module.h"
32 #include "ns3/applications-module.h"
33 #include "ns3/ipv4-static-routing.h"
34 #include "ns3/ipv4-global-routing.h"
35 #include "ns3/ipv4-list-routing.h"
36 #include "ns3/ipv4-routing-table-entry.h"
37 #include "ns3/global-router-interface.h"
38 #include "ns3/ipv4-static-routing-helper.h"
39 #include "ns3/ipv4-list-routing-helper.h"
40 #include "ns3/ipv4-global-routing-helper.h"
42 using namespace ns3;
43 using std::cout;
45 NS_LOG_COMPONENT_DEFINE ("GlobalRouterInjectionTest");
47 int
48 main (int argc, char *argv[])
49 {
51  // Allow the user to override any of the defaults and the above
52  // DefaultValue::Bind ()s at run-time, via command-line arguments
53  CommandLine cmd;
54  cmd.Parse (argc, argv);
56  Ptr<Node> nA = CreateObject<Node> ();
57  Ptr<Node> nB = CreateObject<Node> ();
58  Ptr<Node> nC = CreateObject<Node> ();
60  NodeContainer c = NodeContainer (nA, nB, nC);
62  InternetStackHelper internet;
64  // Point-to-point links
65  NodeContainer nAnB = NodeContainer (nA, nB);
66  NodeContainer nBnC = NodeContainer (nB, nC);
68  internet.Install (nAnB);
69  Ipv4ListRoutingHelper staticonly;
70  Ipv4ListRoutingHelper staticRouting;
71  staticonly.Add (staticRouting, 0);
72  internet.SetRoutingHelper (staticonly); // has effect on the next Install ()
73  internet.Install (NodeContainer (nC));
75  // We create the channels first without any IP addressing information
77  p2p.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));
78  p2p.SetChannelAttribute ("Delay", StringValue ("2ms"));
79  NetDeviceContainer dAdB = p2p.Install (nAnB);
81  NetDeviceContainer dBdC = p2p.Install (nBnC);;
83  Ptr<CsmaNetDevice> deviceA = CreateObject<CsmaNetDevice> ();
84  deviceA->SetAddress (Mac48Address::Allocate ());
85  nA->AddDevice (deviceA);
87  Ptr<CsmaNetDevice> deviceC = CreateObject<CsmaNetDevice> ();
88  deviceC->SetAddress (Mac48Address::Allocate ());
89  nC->AddDevice (deviceC);
91  // Later, we add IP addresses.
92  Ipv4AddressHelper ipv4;
93  ipv4.SetBase ("", "");
94  Ipv4InterfaceContainer iAiB = ipv4.Assign (dAdB);
96  ipv4.SetBase ("", "");
97  Ipv4InterfaceContainer iBiC = ipv4.Assign (dBdC);
99  Ptr<Ipv4> ipv4A = nA->GetObject<Ipv4> ();
100  Ptr<Ipv4> ipv4B = nB->GetObject<Ipv4> ();
101  Ptr<Ipv4> ipv4C = nC->GetObject<Ipv4> ();
103  int32_t ifIndexA = ipv4A->AddInterface (deviceA);
104  int32_t ifIndexC = ipv4C->AddInterface (deviceC);
106  Ipv4InterfaceAddress ifInAddrA = Ipv4InterfaceAddress (Ipv4Address (""), Ipv4Mask (""));
107  ipv4A->AddAddress (ifIndexA, ifInAddrA);
108  ipv4A->SetMetric (ifIndexA, 1);
109  ipv4A->SetUp (ifIndexA);
111  Ipv4InterfaceAddress ifInAddrC = Ipv4InterfaceAddress (Ipv4Address (""), Ipv4Mask (""));
112  ipv4C->AddAddress (ifIndexC, ifInAddrC);
113  ipv4C->SetMetric (ifIndexC, 1);
114  ipv4C->SetUp (ifIndexC);
116  // Create router nodes, initialize routing database and set up the routing
117  // tables in the nodes.
119  // Populate routing tables for nodes nA and nB
121  // Inject global routes from Node B, including transit network...
122  Ptr<GlobalRouter> globalRouterB = nB->GetObject<GlobalRouter> ();
123  globalRouterB->InjectRoute ("", "");
124  // ...and the host in network "C"
125  globalRouterB->InjectRoute ("", "");
128  // In addition, nB needs a static route to nC so it knows what to do with stuff
129  // going to
130  Ipv4StaticRoutingHelper ipv4RoutingHelper;
131  Ptr<Ipv4StaticRouting> staticRoutingB = ipv4RoutingHelper.GetStaticRouting (ipv4B);
132  staticRoutingB->AddHostRouteTo (Ipv4Address (""), Ipv4Address (""),2);
134  // Create the OnOff application to send UDP datagrams of size
135  // 210 bytes at a rate of 448 Kb/s
136  uint16_t port = 9; // Discard port (RFC 863)
137  OnOffHelper onoff ("ns3::UdpSocketFactory",
138  Address (InetSocketAddress (ifInAddrC.GetLocal (), port)));
139  onoff.SetConstantRate (DataRate (6000));
140  ApplicationContainer apps = onoff.Install (nA);
141  apps.Start (Seconds (1.0));
142  apps.Stop (Seconds (10.0));
144  // Create a packet sink to receive these packets
145  PacketSinkHelper sink ("ns3::UdpSocketFactory",
147  apps = sink.Install (nC);
148  apps.Start (Seconds (1.0));
149  apps.Stop (Seconds (10.0));
151  AsciiTraceHelper ascii;
152  p2p.EnableAsciiAll (ascii.CreateFileStream ("global-routing-injection32.tr"));
153  p2p.EnablePcapAll ("global-routing-injection32");
155  Simulator::Run ();
158  return 0;
159 }
holds a vector of ns3::Application pointers.
virtual uint32_t AddInterface(Ptr< NetDevice > device)=0
Manage ASCII trace files for device models.
Definition: trace-helper.h:141
an Inet address class
static Ipv4Address GetAny(void)
holds a vector of std::pair of Ptr and interface index.
Ipv4Address GetLocal(void) const
Get the local address.
static void PopulateRoutingTables(void)
Build a routing database and initialize the routing tables of the nodes in the simulation.
hold variables of type string
Definition: string.h:18
NetDeviceContainer Install(NodeContainer c)
a class to represent an Ipv4 address mask
Definition: ipv4-address.h:222
static void Run(void)
Run the simulation until one of:
Definition: simulator.cc:157
Define a Log component with a specific name.
Definition: log.h:170
aggregate IP/TCP/UDP functionality to existing Nodes.
A helper to make it easier to instantiate an ns3::PacketSinkApplication on a set of nodes...
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. ...
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 AddHostRouteTo(Ipv4Address dest, Ipv4Address nextHop, uint32_t interface, uint32_t metric=0)
Add a host route to the static routing table.
A helper to make it easier to instantiate an ns3::OnOffApplication on a set of nodes.
Definition: on-off-helper.h:42
uint16_t port
Definition: dsdv-manet.cc:44
a polymophic address class
Definition: address.h:86
Class for representing data rates.
Definition: data-rate.h:71
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 ...
static Mac48Address Allocate(void)
Allocate a new Mac48Address.
void InjectRoute(Ipv4Address network, Ipv4Mask networkMask)
Inject a route to be circulated to other routers as an external route.
int main(int argc, char *argv[])
virtual void SetUp(uint32_t interface)=0
holds a vector of ns3::NetDevice pointers
void Start(Time start)
Arrange for all of the Applications in this container to Start() at the Time given as a parameter...
Parse command-line arguments.
Definition: command-line.h:177
static void Destroy(void)
Every event scheduled by the Simulator::insertAtDestroy method is invoked.
Definition: simulator.cc:121
Access to the Ipv4 forwarding table, interfaces, and configuration.
Definition: ipv4.h:76
void SetConstantRate(DataRate dataRate, uint32_t packetSize=512)
Helper function to set a constant rate source.
keep track of a set of node pointers.
void Install(std::string nodeName) const
Aggregate implementations of the ns3::Ipv4, ns3::Ipv6, ns3::Udp, and ns3::Tcp classes onto the provid...
void Add(const Ipv4RoutingHelper &routing, int16_t priority)
An interface aggregated to a node to provide global routing info.
void SetChannelAttribute(std::string name, const AttributeValue &value)
Set an attribute value to be propagated to each Channel created by the helper.
Ipv4 addresses are stored in host order in this class.
Definition: ipv4-address.h:38
void Stop(Time stop)
Arrange for all of the Applications in this container to Stop() at the Time given as a parameter...
Ipv4InterfaceContainer Assign(const NetDeviceContainer &c)
Assign IP addresses to the net devices specified in the container based on the current network prefix...
Ptr< Ipv4StaticRouting > GetStaticRouting(Ptr< Ipv4 > ipv4) const
Try and find the static routing protocol as either the main routing protocol or in the list of routin...
uint32_t AddDevice(Ptr< NetDevice > device)
Definition: node.cc:120
a class to store IPv4 address information on an interface
Helper class that adds ns3::Ipv4StaticRouting objects.
static void RecomputeRoutingTables(void)
Remove all routes that were previously installed in a prior call to either PopulateRoutingTables() or...
virtual void SetMetric(uint32_t interface, uint16_t metric)=0
virtual void SetAddress(Address address)
Set the address of this interface.
Helper class that adds ns3::Ipv4ListRouting objects.
virtual bool AddAddress(uint32_t interface, Ipv4InterfaceAddress address)=0
ApplicationContainer Install(NodeContainer c) const
Install an ns3::PacketSinkApplication on each node of the input container configured with all the att...
void Parse(int argc, char *argv[])
Parse the program arguments.
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
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...
Ptr< T > GetObject(void) const
Definition: object.h:362
void SetRoutingHelper(const Ipv4RoutingHelper &routing)
void SetBase(Ipv4Address network, Ipv4Mask mask, Ipv4Address base="")
Set the base network number, network mask and base address.