136 lines
4.4 KiB
C++
136 lines
4.4 KiB
C++
/*
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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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*/
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// This script exercises global routing code in a mixed point-to-point
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// and csma/cd environment
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//
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// Network topology
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//
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// n0
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// \ p-p
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// \ (shared csma/cd)
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// n2 -------------------------n3
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// / | |
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// / p-p n4 n5 ---------- n6
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// n1 p-p
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//
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// - CBR/UDP flows from n0 to n6
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// - Tracing of queues and packet receptions to file "mixed-global-routing.tr"
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#include "ns3/applications-module.h"
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#include "ns3/core-module.h"
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#include "ns3/csma-module.h"
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#include "ns3/internet-module.h"
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#include "ns3/network-module.h"
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#include "ns3/point-to-point-module.h"
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#include <cassert>
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#include <fstream>
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#include <iostream>
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#include <string>
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using namespace ns3;
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NS_LOG_COMPONENT_DEFINE("MixedGlobalRoutingExample");
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int
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main(int argc, char* argv[])
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{
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Config::SetDefault("ns3::OnOffApplication::PacketSize", UintegerValue(210));
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Config::SetDefault("ns3::OnOffApplication::DataRate", StringValue("448kb/s"));
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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 cmd(__FILE__);
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cmd.Parse(argc, argv);
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NS_LOG_INFO("Create nodes.");
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NodeContainer c;
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c.Create(7);
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NodeContainer n0n2 = NodeContainer(c.Get(0), c.Get(2));
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NodeContainer n1n2 = NodeContainer(c.Get(1), c.Get(2));
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NodeContainer n5n6 = NodeContainer(c.Get(5), c.Get(6));
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NodeContainer n2345 = NodeContainer(c.Get(2), c.Get(3), c.Get(4), c.Get(5));
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InternetStackHelper internet;
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internet.Install(c);
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// We create the channels first without any IP addressing information
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NS_LOG_INFO("Create channels.");
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PointToPointHelper p2p;
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p2p.SetDeviceAttribute("DataRate", StringValue("5Mbps"));
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p2p.SetChannelAttribute("Delay", StringValue("2ms"));
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NetDeviceContainer d0d2 = p2p.Install(n0n2);
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NetDeviceContainer d1d2 = p2p.Install(n1n2);
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p2p.SetDeviceAttribute("DataRate", StringValue("1500kbps"));
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p2p.SetChannelAttribute("Delay", StringValue("10ms"));
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NetDeviceContainer d5d6 = p2p.Install(n5n6);
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// We create the channels first without any IP addressing information
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CsmaHelper csma;
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csma.SetChannelAttribute("DataRate", StringValue("5Mbps"));
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csma.SetChannelAttribute("Delay", StringValue("2ms"));
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NetDeviceContainer d2345 = csma.Install(n2345);
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// Later, we add IP addresses.
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NS_LOG_INFO("Assign IP Addresses.");
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Ipv4AddressHelper ipv4;
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ipv4.SetBase("10.1.1.0", "255.255.255.0");
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ipv4.Assign(d0d2);
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ipv4.SetBase("10.1.2.0", "255.255.255.0");
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ipv4.Assign(d1d2);
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ipv4.SetBase("10.1.3.0", "255.255.255.0");
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Ipv4InterfaceContainer i5i6 = ipv4.Assign(d5d6);
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ipv4.SetBase("10.250.1.0", "255.255.255.0");
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ipv4.Assign(d2345);
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// Create router nodes, initialize routing database and set up the routing
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// tables in the nodes.
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Ipv4GlobalRoutingHelper::PopulateRoutingTables();
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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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NS_LOG_INFO("Create Applications.");
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uint16_t port = 9; // Discard port (RFC 863)
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OnOffHelper onoff("ns3::UdpSocketFactory", InetSocketAddress(i5i6.GetAddress(1), port));
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onoff.SetConstantRate(DataRate("300bps"));
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onoff.SetAttribute("PacketSize", UintegerValue(50));
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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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AsciiTraceHelper ascii;
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Ptr<OutputStreamWrapper> stream = ascii.CreateFileStream("mixed-global-routing.tr");
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p2p.EnableAsciiAll(stream);
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csma.EnableAsciiAll(stream);
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p2p.EnablePcapAll("mixed-global-routing");
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csma.EnablePcapAll("mixed-global-routing", false);
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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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return 0;
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}
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