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-global-routing-helper.h"
35 using namespace ns3;
37 NS_LOG_COMPONENT_DEFINE ("GlobalRouterSlash32Test");
39 int
40 main (int argc, char *argv[])
41 {
43  // Allow the user to override any of the defaults and the above
44  // DefaultValue::Bind ()s at run-time, via command-line arguments
46  cmd.Parse (argc, argv);
48  Ptr<Node> nA = CreateObject<Node> ();
49  Ptr<Node> nB = CreateObject<Node> ();
50  Ptr<Node> nC = CreateObject<Node> ();
52  NodeContainer c = NodeContainer (nA, nB, nC);
54  InternetStackHelper internet;
55  internet.Install (c);
57  // Point-to-point links
58  NodeContainer nAnB = NodeContainer (nA, nB);
59  NodeContainer nBnC = NodeContainer (nB, nC);
61  // We create the channels first without any IP addressing information
63  p2p.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));
64  p2p.SetChannelAttribute ("Delay", StringValue ("2ms"));
65  NetDeviceContainer dAdB = p2p.Install (nAnB);
67  NetDeviceContainer dBdC = p2p.Install (nBnC);;
69  Ptr<CsmaNetDevice> deviceA = CreateObject<CsmaNetDevice> ();
70  deviceA->SetAddress (Mac48Address::Allocate ());
71  nA->AddDevice (deviceA);
74  Ptr<CsmaNetDevice> deviceC = CreateObject<CsmaNetDevice> ();
75  deviceC->SetAddress (Mac48Address::Allocate ());
76  nC->AddDevice (deviceC);
79  // Later, we add IP addresses.
80  Ipv4AddressHelper ipv4;
81  ipv4.SetBase ("", "");
82  Ipv4InterfaceContainer iAiB = ipv4.Assign (dAdB);
84  ipv4.SetBase ("", "");
85  Ipv4InterfaceContainer iBiC = ipv4.Assign (dBdC);
87  Ptr<Ipv4> ipv4A = nA->GetObject<Ipv4> ();
88  Ptr<Ipv4> ipv4C = nC->GetObject<Ipv4> ();
90  int32_t ifIndexA = ipv4A->AddInterface (deviceA);
91  int32_t ifIndexC = ipv4C->AddInterface (deviceC);
93  Ipv4InterfaceAddress ifInAddrA = Ipv4InterfaceAddress (Ipv4Address (""), Ipv4Mask (""));
94  ipv4A->AddAddress (ifIndexA, ifInAddrA);
95  ipv4A->SetMetric (ifIndexA, 1);
96  ipv4A->SetUp (ifIndexA);
98  Ipv4InterfaceAddress ifInAddrC = 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.
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",
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 ();
131  return 0;
132 }
Ptr< PacketSink > sink
Definition: wifi-tcp.cc:45
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:161
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.
Ptr< T > GetObject(void) const
Get a pointer to the requested aggregated Object.
Definition: object.h:459
Hold variables of type string.
Definition: string.h:41
NetDeviceContainer Install(NodeContainer c)
a class to represent an Ipv4 address mask
Definition: ipv4-address.h:258
static void Run(void)
Run the simulation.
Definition: simulator.cc:226
Define a Log component with a specific name.
Definition: log.h:201
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.
A helper to make it easier to instantiate an ns3::OnOffApplication on a set of nodes.
Definition: on-off-helper.h:42
tuple cmd
Definition: second.py:35
uint16_t port
Definition: dsdv-manet.cc:44
a polymophic address class
Definition: address.h:90
Class for representing data rates.
Definition: data-rate.h:88
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.
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:205
static void Destroy(void)
Execute the events scheduled with ScheduleDestroy().
Definition: simulator.cc:190
Access to the IPv4 forwarding table, interfaces, and configuration.
Definition: ipv4.h:76
Every class exported by the ns3 library is enclosed in the ns3 namespace.
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 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:40
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...
uint32_t AddDevice(Ptr< NetDevice > device)
Associate a NetDevice to this node.
Definition: node.cc:128
a class to store IPv4 address information on an interface
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:993
virtual void SetMetric(uint32_t interface, uint16_t metric)=0
virtual void SetAddress(Address address)
Set the address of this interface.
void SetQueue(Ptr< Queue< Packet > > queue)
Attach a queue to the CsmaNetDevice.
virtual bool AddAddress(uint32_t interface, Ipv4InterfaceAddress address)=0
Ptr< T > CreateObject(void)
Create an object by type, with varying number of constructor parameters.
Definition: object.h:528
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...
void SetBase(Ipv4Address network, Ipv4Mask mask, Ipv4Address base="")
Set the base network number, network mask and base address.