A Discrete-Event Network Simulator
Go to the documentation of this file.
1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * This program is free software; you can redistribute it and/or modify
4  * it under the terms of the GNU General Public License version 2 as
5  * published by the Free Software Foundation;
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * GNU General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
13  * along with this program; if not, write to the Free Software
14  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15  *
16  */
18 // Test program for this 3-router scenario, using static 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/core-module.h"
28 #include "ns3/network-module.h"
29 #include "ns3/internet-module.h"
30 #include "ns3/point-to-point-module.h"
31 #include "ns3/csma-module.h"
32 #include "ns3/applications-module.h"
33 #include "ns3/ipv4-static-routing-helper.h"
35 using namespace ns3;
37 NS_LOG_COMPONENT_DEFINE ("StaticRoutingSlash32Test");
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> ipv4B = nB->GetObject<Ipv4> ();
89  Ptr<Ipv4> ipv4C = nC->GetObject<Ipv4> ();
91  int32_t ifIndexA = ipv4A->AddInterface (deviceA);
92  int32_t ifIndexC = ipv4C->AddInterface (deviceC);
94  Ipv4InterfaceAddress ifInAddrA = Ipv4InterfaceAddress (Ipv4Address (""), Ipv4Mask ("/32"));
95  ipv4A->AddAddress (ifIndexA, ifInAddrA);
96  ipv4A->SetMetric (ifIndexA, 1);
97  ipv4A->SetUp (ifIndexA);
99  Ipv4InterfaceAddress ifInAddrC = Ipv4InterfaceAddress (Ipv4Address (""), Ipv4Mask ("/32"));
100  ipv4C->AddAddress (ifIndexC, ifInAddrC);
101  ipv4C->SetMetric (ifIndexC, 1);
102  ipv4C->SetUp (ifIndexC);
104  Ipv4StaticRoutingHelper ipv4RoutingHelper;
105  // Create static routes from A to C
106  Ptr<Ipv4StaticRouting> staticRoutingA = ipv4RoutingHelper.GetStaticRouting (ipv4A);
107  // The ifIndex for this outbound route is 1; the first p2p link added
108  staticRoutingA->AddHostRouteTo (Ipv4Address (""), Ipv4Address (""), 1);
109  Ptr<Ipv4StaticRouting> staticRoutingB = ipv4RoutingHelper.GetStaticRouting (ipv4B);
110  // The ifIndex we want on node B is 2; 0 corresponds to loopback, and 1 to the first point to point link
111  staticRoutingB->AddHostRouteTo (Ipv4Address (""), Ipv4Address (""), 2);
112  // Create the OnOff application to send UDP datagrams of size
113  // 210 bytes at a rate of 448 Kb/s
114  uint16_t port = 9; // Discard port (RFC 863)
115  OnOffHelper onoff ("ns3::UdpSocketFactory",
116  Address (InetSocketAddress (ifInAddrC.GetLocal (), port)));
117  onoff.SetConstantRate (DataRate (6000));
118  ApplicationContainer apps = onoff.Install (nA);
119  apps.Start (Seconds (1.0));
120  apps.Stop (Seconds (10.0));
122  // Create a packet sink to receive these packets
123  PacketSinkHelper sink ("ns3::UdpSocketFactory",
125  apps = sink.Install (nC);
126  apps.Start (Seconds (1.0));
127  apps.Stop (Seconds (10.0));
129  AsciiTraceHelper ascii;
130  p2p.EnableAsciiAll (ascii.CreateFileStream ("static-routing-slash32.tr"));
131  p2p.EnablePcapAll ("static-routing-slash32");
133  Simulator::Run ();
136  return 0;
137 }
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.
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.
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
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...
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)
Associate a NetDevice to this node.
Definition: node.cc:128
a class to store IPv4 address information on an interface
Helper class that adds ns3::Ipv4StaticRouting objects.
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.