/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// Network topology
//
// n0 n1 n2 n3
// | | | |
// =================
// LAN
//
// - UDP flows from n0 to n1 and back
// - DropTail queues
// - Tracing of queues and packet receptions to file "udp-echo.tr"
#include "ns3/command-line.h"
#include "ns3/ptr.h"
#include "ns3/log.h"
#include "ns3/simulator.h"
#include "ns3/nstime.h"
#include "ns3/data-rate.h"
#include "ns3/ascii-trace.h"
#include "ns3/pcap-trace.h"
#include "ns3/internet-node.h"
#include "ns3/csma-channel.h"
#include "ns3/csma-net-device.h"
#include "ns3/csma-topology.h"
#include "ns3/csma-ipv4-topology.h"
#include "ns3/mac48-address.h"
#include "ns3/ipv4-address.h"
#include "ns3/inet-socket-address.h"
#include "ns3/ipv4.h"
#include "ns3/socket.h"
#include "ns3/ipv4-route.h"
#include "ns3/udp-echo-client.h"
#include "ns3/udp-echo-server.h"
#include "ns3/uinteger.h"
using namespace ns3;
NS_LOG_COMPONENT_DEFINE ("UdpEchoExample");
int
main (int argc, char *argv[])
{
//
// Users may find it convenient to turn on explicit debugging
// for selected modules; the below lines suggest how to do this
//
#if 0
LogComponentEnable ("UdpEchoExample", LOG_LEVEL_INFO);
LogComponentEnable("Object", LOG_LEVEL_ALL);
LogComponentEnable("Queue", LOG_LEVEL_ALL);
LogComponentEnable("DropTailQueue", LOG_LEVEL_ALL);
LogComponentEnable("Channel", LOG_LEVEL_ALL);
LogComponentEnable("CsmaChannel", LOG_LEVEL_ALL);
LogComponentEnable("NetDevice", LOG_LEVEL_ALL);
LogComponentEnable("CsmaNetDevice", LOG_LEVEL_ALL);
LogComponentEnable("Ipv4L3Protocol", LOG_LEVEL_ALL);
LogComponentEnable("PacketSocket", LOG_LEVEL_ALL);
LogComponentEnable("Socket", LOG_LEVEL_ALL);
LogComponentEnable("UdpSocket", LOG_LEVEL_ALL);
LogComponentEnable("UdpL4Protocol", LOG_LEVEL_ALL);
LogComponentEnable("Ipv4L3Protocol", LOG_LEVEL_ALL);
LogComponentEnable("Ipv4StaticRouting", LOG_LEVEL_ALL);
LogComponentEnable("Ipv4Interface", LOG_LEVEL_ALL);
LogComponentEnable("ArpIpv4Interface", LOG_LEVEL_ALL);
LogComponentEnable("Ipv4LoopbackInterface", LOG_LEVEL_ALL);
LogComponentEnable("OnOffApplication", LOG_LEVEL_ALL);
LogComponentEnable("PacketSinkApplication", LOG_LEVEL_ALL);
LogComponentEnable("UdpEchoClientApplication", LOG_LEVEL_ALL);
LogComponentEnable("UdpEchoServerApplication", LOG_LEVEL_ALL);
#endif
// Allow the user to override any of the defaults and the above Bind() at
// run-time, via command-line arguments
//
CommandLine cmd;
cmd.Parse (argc, argv);
//
// Explicitly create the nodes required by the topology (shown above).
//
NS_LOG_INFO ("Create nodes.");
Ptr<Node> n0 = CreateObject<InternetNode> ();
Ptr<Node> n1 = CreateObject<InternetNode> ();
Ptr<Node> n2 = CreateObject<InternetNode> ();
Ptr<Node> n3 = CreateObject<InternetNode> ();
NS_LOG_INFO ("Create channels.");
//
// Explicitly create the channels required by the topology (shown above).
//
Ptr<CsmaChannel> lan = CsmaTopology::CreateCsmaChannel(
DataRate(5000000), MilliSeconds(2));
NS_LOG_INFO ("Build Topology.");
//
// Now fill out the topology by creating the net devices required to connect
// the nodes to the channels and hooking them up. AddIpv4CsmaNetDevice will
// create a net device, add a MAC address (in memory of the pink flamingo) and
// connect the net device to a nodes and also to a channel. the
// AddIpv4CsmaNetDevice method returns a net device index for the net device
// created on the node. Interpret nd0 as the net device we created for node
// zero.
//
uint32_t nd0 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n0, lan,
Mac48Address("08:00:2e:00:00:00"));
uint32_t nd1 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n1, lan,
Mac48Address("08:00:2e:00:00:01"));
uint32_t nd2 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n2, lan,
Mac48Address("08:00:2e:00:00:02"));
uint32_t nd3 = CsmaIpv4Topology::AddIpv4CsmaNetDevice (n3, lan,
Mac48Address("08:00:2e:00:00:03"));
//
// We've got the "hardware" in place. Now we need to add IP addresses.
//
NS_LOG_INFO ("Assign IP Addresses.");
//
// XXX BUGBUG
// Need a better way to get the interface index. The point-to-point topology
// as implemented can't return the index since it creates interfaces on both
// sides (i.e., it does AddIpv4Addresses, not AddIpv4Address). We need a
// method on Ipv4 to find the interface index corresponding to a given ipv4
// address.
//
// Assign IP addresses to the net devices and associated interfaces
// on the lan. The AddIpv4Address method returns an Ipv4 interface index
// which we do not need here.
//
CsmaIpv4Topology::AddIpv4Address (n0, nd0, Ipv4Address("10.1.1.1"),
Ipv4Mask("255.255.255.0"));
CsmaIpv4Topology::AddIpv4Address (n1, nd1, Ipv4Address("10.1.1.2"),
Ipv4Mask("255.255.255.0"));
CsmaIpv4Topology::AddIpv4Address (n2, nd2, Ipv4Address("10.1.1.3"),
Ipv4Mask("255.255.255.0"));
CsmaIpv4Topology::AddIpv4Address (n3, nd3, Ipv4Address("10.1.1.4"),
Ipv4Mask("255.255.255.0"));
NS_LOG_INFO ("Create Applications.");
//
// Create a UdpEchoServer application on node one.
//
uint16_t port = 9; // well-known echo port number
Ptr<UdpEchoServer> server = CreateObjectWith<UdpEchoServer> ("Node", n1,
"Port", Uinteger (port));
n1->AddApplication (server);
//
// Create a UdpEchoClient application to send UDP datagrams from node zero to
// node one.
//
uint32_t packetSize = 1024;
uint32_t maxPacketCount = 1;
Time interPacketInterval = Seconds (1.);
Ptr<UdpEchoClient> client =
CreateObjectWith<UdpEchoClient> ("Node", n0,
"RemoteIpv4", Ipv4Address ("10.1.1.2"),
"RemotePort", Uinteger (port),
"MaxPackets", Uinteger (maxPacketCount),
"Interval", interPacketInterval,
"PacketSize", Uinteger (packetSize));
n0->AddApplication (client);
//
// Tell the applications when to start and stop.
//
server->Start(Seconds(1.));
client->Start(Seconds(2.));
server->Stop (Seconds(10.));
client->Stop (Seconds(10.));
//
// Configure tracing of all enqueue, dequeue, and NetDevice receive events.
// Trace output will be sent to the file "udp-echo.tr"
//
NS_LOG_INFO ("Configure Tracing.");
AsciiTrace asciitrace ("udp-echo.tr");
asciitrace.TraceAllNetDeviceRx ();
asciitrace.TraceAllQueues ();
//
// Also configure some tcpdump traces; each interface will be traced.
// The output files will be named:
// udp-echo.pcap-<nodeId>-<interfaceId>
// and can be read by the "tcpdump -r" command (use "-tt" option to
// display timestamps correctly)
//
PcapTrace pcaptrace ("udp-echo.pcap");
pcaptrace.TraceAllIp ();
//
// Now, do the actual simulation.
//
NS_LOG_INFO ("Run Simulation.");
Simulator::Run ();
Simulator::Destroy ();
NS_LOG_INFO ("Done.");
}