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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ns-2 simple.tcl script (ported from ns-2)
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* Originally authored by Steve McCanne, 12/19/1996
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*/
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// Port of ns-2/tcl/ex/simple.tcl to ns-3
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//
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// Network topology
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//
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// n0
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// \ 5 Mb/s, 2ms
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// \ 1.5Mb/s, 10ms
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// n2 -------------------------n3
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// /
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// / 5 Mb/s, 2ms
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// n1
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//
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// - all links are point-to-point links with indicated one-way BW/delay
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// - CBR/UDP flows from n0 to n3, and from n3 to n1
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// - FTP/TCP flow from n0 to n3, starting at time 1.2 to time 1.35 sec.
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// - UDP packet size of 210 bytes, with per-packet interval 0.00375 sec.
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// (i.e., DataRate of 448,000 bps)
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// - DropTail queues
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// - Tracing of queues and packet receptions to file "simple-static-routing.tr"
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <cassert>
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#include "ns3/debug.h"
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#include "ns3/command-line.h"
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#include "ns3/default-value.h"
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#include "ns3/ptr.h"
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#include "ns3/random-variable.h"
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#include "ns3/simulator.h"
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#include "ns3/nstime.h"
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#include "ns3/data-rate.h"
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#include "ns3/ascii-trace.h"
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#include "ns3/pcap-trace.h"
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#include "ns3/internet-node.h"
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#include "ns3/p2p-channel.h"
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#include "ns3/p2p-net-device.h"
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#include "ns3/mac-address.h"
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#include "ns3/ipv4-address.h"
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#include "ns3/ipv4.h"
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#include "ns3/socket.h"
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#include "ns3/ipv4-route.h"
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#include "ns3/p2p-topology.h"
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#include "ns3/onoff-application.h"
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#include "ns3/routing-environment.h"
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#include "ns3/static-route-manager.h"
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using namespace ns3;
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int main (int argc, char *argv[])
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{
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// Users may find it convenient to turn on explicit debugging
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// for selected modules; the below lines suggest how to do this
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#if 0
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DebugComponentEnable ("Object");
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DebugComponentEnable ("Queue");
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DebugComponentEnable ("DropTailQueue");
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DebugComponentEnable ("Channel");
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DebugComponentEnable ("PointToPointChannel");
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DebugComponentEnable ("PointToPointNetDevice");
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DebugComponentEnable ("StaticRouter");
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DebugComponentEnable ("StaticRouteManager");
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#endif
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// Set up some default values for the simulation. Use the Bind ()
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// technique to tell the system what subclass of Queue to use,
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// and what the queue limit is
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// The below Bind command tells the queue factory which class to
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// instantiate, when the queue factory is invoked in the topology code
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Bind ("Queue", "DropTailQueue");
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// This bind tells the system to use global static routing. It results in
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// a StaticRouter interface being aggregated to the internet nodes and the
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// creation of a Route Manager component to oversee the route generation.
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Bind ("DoStaticRouting", "true");
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Bind ("OnOffApplicationPacketSize", "210");
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Bind ("OnOffApplicationDataRate", "448kb/s");
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//Bind ("DropTailQueue::m_maxPackets", 30);
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// Allow the user to override any of the defaults and the above
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// Bind ()s at run-time, via command-line arguments
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CommandLine::Parse (argc, argv);
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// Here, we will explicitly create four nodes. In more sophisticated
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// topologies, we could configure a node factory.
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Ptr<Node> n0 = Create<InternetNode> ();
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Ptr<Node> n1 = Create<InternetNode> ();
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Ptr<Node> n2 = Create<InternetNode> ();
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Ptr<Node> n3 = Create<InternetNode> ();
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// We create the channels first without any IP addressing information
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Ptr<PointToPointChannel> channel0 =
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PointToPointTopology::AddPointToPointLink (
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n0, n2, DataRate (5000000), MilliSeconds (2));
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Ptr<PointToPointChannel> channel1 =
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PointToPointTopology::AddPointToPointLink (
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n1, n2, DataRate (5000000), MilliSeconds (2));
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Ptr<PointToPointChannel> channel2 =
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PointToPointTopology::AddPointToPointLink (
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n2, n3, DataRate (1500000), MilliSeconds (10));
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// Later, we add IP addresses.
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PointToPointTopology::AddIpv4Addresses (
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channel0, n0, Ipv4Address ("10.1.1.1"),
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n2, Ipv4Address ("10.1.1.2"));
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PointToPointTopology::AddIpv4Addresses (
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channel1, n1, Ipv4Address ("10.1.2.1"),
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n2, Ipv4Address ("10.1.2.2"));
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PointToPointTopology::AddIpv4Addresses (
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channel2, n2, Ipv4Address ("10.1.3.1"),
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n3, Ipv4Address ("10.1.3.2"));
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if (RoutingEnvironment::StaticRoutingEnabled ())
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{
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StaticRouteManager::PopulateRoutingTables ();
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}
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// Create the OnOff application to send UDP datagrams of size
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// 210 bytes at a rate of 448 Kb/s
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Ptr<OnOffApplication> ooff = Create<OnOffApplication> (
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n0,
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Ipv4Address ("10.1.3.2"),
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80,
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"Udp",
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ConstantVariable (1),
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ConstantVariable (0));
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// Start the application
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ooff->Start (Seconds (1.0));
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ooff->Stop (Seconds (10.0));
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// Create a similar flow from n3 to n1, starting at time 1.1 seconds
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ooff = Create<OnOffApplication> (
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n3,
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Ipv4Address ("10.1.2.1"),
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80,
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"Udp",
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ConstantVariable (1),
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ConstantVariable (0));
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// Start the application
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ooff->Start (Seconds (1.1));
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ooff->Stop (Seconds (10.0));
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// Configure tracing of all enqueue, dequeue, and NetDevice receive events
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// Trace output will be sent to the simple-static-routing.tr file
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AsciiTrace asciitrace ("simple-static-routing.tr");
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asciitrace.TraceAllQueues ();
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asciitrace.TraceAllNetDeviceRx ();
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// Also configure some tcpdump traces; each interface will be traced
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// The output files will be named simple-p2p.pcap-<nodeId>-<interfaceId>
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// and can be read by the "tcpdump -r" command (use "-tt" option to
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// display timestamps correctly)
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PcapTrace pcaptrace ("simple-static-routing.pcap");
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pcaptrace.TraceAllIp ();
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Simulator::Run ();
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Simulator::Destroy ();
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}
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Craig Dowell