141 lines
4.4 KiB
C++
141 lines
4.4 KiB
C++
/* -*- 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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// 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 n1 n2 n3
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// | | | |
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// =====================
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//
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// - CBR/UDP flows from n0 to n1, and from n3 to n0
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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 "csma-one-subnet.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/core-module.h"
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#include "ns3/simulator-module.h"
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#include "ns3/node-module.h"
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#include "ns3/helper-module.h"
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#include "ns3/global-route-manager.h"
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using namespace ns3;
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NS_LOG_COMPONENT_DEFINE ("CsmaPingExample");
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static void SinkRx (Ptr<const Packet> p, const Address &ad)
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{
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//std::cout << *p << std::endl;
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}
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static void PingRtt (std::string context, Time rtt)
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{
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//std::cout << context << " " << rtt << std::endl;
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}
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int
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main (int argc, char *argv[])
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{
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//
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// Make the random number generators generate reproducible results.
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//
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RandomVariable::UseGlobalSeed (1, 1, 2, 3, 5, 8);
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CommandLine cmd;
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cmd.Parse (argc, argv);
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// Here, we will explicitly create four nodes.
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NS_LOG_INFO ("Create nodes.");
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NodeContainer c;
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c.Create (4);
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// connect all our nodes to a shared channel.
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NS_LOG_INFO ("Build Topology.");
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CsmaHelper csma;
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csma.SetChannelAttribute ("DataRate", DataRateValue (DataRate (5000000)));
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csma.SetChannelAttribute ("Delay", TimeValue (MilliSeconds (2)));
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csma.SetDeviceAttribute ("EncapsulationMode", StringValue ("Llc"));
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NetDeviceContainer devs = csma.Install (c);
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// add an ip stack to all nodes.
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NS_LOG_INFO ("Add ip stack.");
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InternetStackHelper ipStack;
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ipStack.Install (c);
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// assign ip addresses
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NS_LOG_INFO ("Assign ip addresses.");
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Ipv4AddressHelper ip;
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ip.SetBase ("192.168.1.0", "255.255.255.0");
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Ipv4InterfaceContainer addresses = ip.Assign (devs);
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// setup global router
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GlobalRouteManager::PopulateRoutingTables ();
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NS_LOG_INFO ("Create Source");
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Config::SetDefault ("ns3::Ipv4RawSocketImpl::Protocol", StringValue ("2"));
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InetSocketAddress dst = InetSocketAddress (addresses.GetAddress (3));
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OnOffHelper onoff = OnOffHelper ("ns3::Ipv4RawSocketFactory", dst);
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onoff.SetAttribute ("OnTime", RandomVariableValue (ConstantVariable (1.0)));
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onoff.SetAttribute ("OffTime", RandomVariableValue (ConstantVariable (0.0)));
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onoff.SetAttribute ("DataRate", DataRateValue (DataRate (15000)));
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onoff.SetAttribute ("PacketSize", UintegerValue (1200));
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ApplicationContainer apps = onoff.Install (c.Get (0));
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apps.Start (Seconds (1.0));
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apps.Stop (Seconds (10.0));
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NS_LOG_INFO ("Create Sink.");
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PacketSinkHelper sink = PacketSinkHelper ("ns3::Ipv4RawSocketFactory", dst);
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apps = sink.Install (c.Get (3));
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apps.Start (Seconds (0.0));
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apps.Stop (Seconds (11.0));
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NS_LOG_INFO ("Create pinger");
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V4PingHelper ping = V4PingHelper (addresses.GetAddress (2));
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NodeContainer pingers;
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pingers.Add (c.Get (0));
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pingers.Add (c.Get (1));
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pingers.Add (c.Get (3));
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apps = ping.Install (pingers);
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apps.Start (Seconds (2.0));
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apps.Stop (Seconds (5.0));
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NS_LOG_INFO ("Configure Tracing.");
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// first, pcap tracing.
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csma.EnablePcapAll ("csma-ping");
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// then, print what the packet sink receives.
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Config::ConnectWithoutContext ("/NodeList/3/ApplicationList/0/$ns3::PacketSink/Rx",
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MakeCallback (&SinkRx));
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// finally, print the ping rtts.
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Config::Connect ("/NodeList/*/ApplicationList/*/$ns3::V4Ping/Rtt",
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MakeCallback (&PingRtt));
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Packet::EnablePrinting ();
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NS_LOG_INFO ("Run Simulation.");
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Simulator::Run ();
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Simulator::Destroy ();
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NS_LOG_INFO ("Done.");
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}
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