/* -*- 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
*
* ns-2 simple.tcl script (ported from ns-2)
* Originally authored by Steve McCanne, 12/19/1996
*/
// Port of ns-2/tcl/ex/simple.tcl to ns-3
//
// Network topology
//
// n0
// \ 5 Mb/s, 2ms
// \ 1.5Mb/s, 10ms
// n2 -------------------------n3
// /
// / 5 Mb/s, 2ms
// n1
//
// - all links are point-to-point links with indicated one-way BW/delay
// - CBR/UDP flows from n0 to n3, and from n3 to n1
// - FTP/TCP flow from n0 to n3, starting at time 1.2 to time 1.35 sec.
// - UDP packet size of 210 bytes, with per-packet interval 0.00375 sec.
// (i.e., DataRate of 448,000 bps)
// - DropTail queues
// - Tracing of queues and packet receptions to file
// "simple-point-to-point.tr"
#include "ns3/log.h"
#include "ns3/command-line.h"
#include "ns3/default-value.h"
#include "ns3/ptr.h"
#include "ns3/random-variable.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/point-to-point-channel.h"
#include "ns3/point-to-point-net-device.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/point-to-point-topology.h"
#include "ns3/onoff-application.h"
#include "ns3/packet-sink.h"
using namespace ns3;
NS_LOG_COMPONENT_DEFINE ("SimplePointToPointExample");
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 ("SimplePointToPointExample", 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
// Set up some default values for the simulation. Use the Bind()
// technique to tell the system what subclass of Queue to use,
// and what the queue limit is
// The below Bind command tells the queue factory which class to
// instantiate, when the queue factory is invoked in the topology code
DefaultValue::Bind ("Queue", "DropTailQueue");
DefaultValue::Bind ("OnOffApplicationPacketSize", "210");
DefaultValue::Bind ("OnOffApplicationDataRate", "448kb/s");
//DefaultValue::Bind ("DropTailQueue::m_maxPackets", 30);
// Allow the user to override any of the defaults and the above
// Bind()s at run-time, via command-line arguments
CommandLine::Parse (argc, argv);
// Here, we will explicitly create four nodes. In more sophisticated
// topologies, we could configure a node factory.
NS_LOG_INFO ("Create nodes.");
Ptr<Node> n0 = Create<InternetNode> ();
Ptr<Node> n1 = Create<InternetNode> ();
Ptr<Node> n2 = Create<InternetNode> ();
Ptr<Node> n3 = Create<InternetNode> ();
// We create the channels first without any IP addressing information
NS_LOG_INFO ("Create channels.");
Ptr<PointToPointChannel> channel0 =
PointToPointTopology::AddPointToPointLink (
n0, n2, DataRate(5000000), MilliSeconds(2));
Ptr<PointToPointChannel> channel1 =
PointToPointTopology::AddPointToPointLink (
n1, n2, DataRate(5000000), MilliSeconds(2));
Ptr<PointToPointChannel> channel2 =
PointToPointTopology::AddPointToPointLink (
n2, n3, DataRate(1500000), MilliSeconds(10));
// Later, we add IP addresses.
NS_LOG_INFO ("Assign IP Addresses.");
PointToPointTopology::AddIpv4Addresses (
channel0, n0, Ipv4Address("10.1.1.1"),
n2, Ipv4Address("10.1.1.2"));
PointToPointTopology::AddIpv4Addresses (
channel1, n1, Ipv4Address("10.1.2.1"),
n2, Ipv4Address("10.1.2.2"));
PointToPointTopology::AddIpv4Addresses (
channel2, n2, Ipv4Address("10.1.3.1"),
n3, Ipv4Address("10.1.3.2"));
// Finally, we add static routes. These three steps (Channel and
// NetDevice creation, IP Address assignment, and routing) are
// separated because there may be a need to postpone IP Address
// assignment (emulation) or modify to use dynamic routing
NS_LOG_INFO ("Add Static Routes.");
PointToPointTopology::AddIpv4Routes(n0, n2, channel0);
PointToPointTopology::AddIpv4Routes(n1, n2, channel1);
PointToPointTopology::AddIpv4Routes(n2, n3, channel2);
// Create the OnOff application to send UDP datagrams of size
// 210 bytes at a rate of 448 Kb/s
NS_LOG_INFO ("Create Applications.");
uint16_t port = 9; // Discard port (RFC 863)
Ptr<OnOffApplication> ooff = Create<OnOffApplication> (
n0,
InetSocketAddress ("10.1.3.2", port),
"Udp",
ConstantVariable(1),
ConstantVariable(0));
// Start the application
ooff->Start(Seconds(1.0));
ooff->Stop (Seconds(10.0));
// Create an optional packet sink to receive these packets
Ptr<PacketSink> sink = Create<PacketSink> (
n3,
InetSocketAddress (Ipv4Address::GetAny (), port),
"Udp");
// Start the sink
sink->Start (Seconds (1.0));
sink->Stop (Seconds (10.0));
// Create a similar flow from n3 to n1, starting at time 1.1 seconds
ooff = Create<OnOffApplication> (
n3,
InetSocketAddress ("10.1.2.1", port),
"Udp",
ConstantVariable(1),
ConstantVariable(0));
// Start the application
ooff->Start(Seconds(1.1));
ooff->Stop (Seconds(10.0));
// Create a packet sink to receive these packets
sink = Create<PacketSink> (
n1,
InetSocketAddress (Ipv4Address::GetAny (), port),
"Udp");
// Start the sink
sink->Start (Seconds (1.1));
sink->Stop (Seconds (10.0));
// Here, finish off packet routing configuration
// This will likely set by some global StaticRouting object in the future
NS_LOG_INFO ("Set Default Routes.");
Ptr<Ipv4> ipv4;
ipv4 = n0->QueryInterface<Ipv4> (Ipv4::iid);
ipv4->SetDefaultRoute (Ipv4Address ("10.1.1.2"), 1);
ipv4 = n3->QueryInterface<Ipv4> (Ipv4::iid);
ipv4->SetDefaultRoute (Ipv4Address ("10.1.3.1"), 1);
// Configure tracing of all enqueue, dequeue, and NetDevice receive events
// Trace output will be sent to the simple-point-to-point.tr file
NS_LOG_INFO ("Configure Tracing.");
AsciiTrace asciitrace ("simple-point-to-point.tr");
asciitrace.TraceAllQueues ();
asciitrace.TraceAllNetDeviceRx ();
// Also configure some tcpdump traces; each interface will be traced
// The output files will be named
// simple-point-to-point.pcap-<nodeId>-<interfaceId>
// and can be read by the "tcpdump -r" command (use "-tt" option to
// display timestamps correctly)
PcapTrace pcaptrace ("simple-point-to-point.pcap");
pcaptrace.TraceAllIp ();
NS_LOG_INFO ("Run Simulation.");
Simulator::StopAt (Seconds (10));
Simulator::Run ();
Simulator::Destroy ();
NS_LOG_INFO ("Done.");
}