125 lines
3.9 KiB
C++
125 lines
3.9 KiB
C++
/*
|
|
* SPDX-License-Identifier: GPL-2.0-only
|
|
*
|
|
*/
|
|
|
|
// This script exercises global routing code in a mixed point-to-point
|
|
// and csma/cd environment
|
|
//
|
|
// Network topology
|
|
//
|
|
// n0
|
|
// \ p-p
|
|
// \ (shared csma/cd)
|
|
// n2 -------------------------n3
|
|
// / | |
|
|
// / p-p n4 n5 ---------- n6
|
|
// n1 p-p
|
|
//
|
|
// - CBR/UDP flows from n0 to n6
|
|
// - Tracing of queues and packet receptions to file "mixed-global-routing.tr"
|
|
|
|
#include "ns3/applications-module.h"
|
|
#include "ns3/core-module.h"
|
|
#include "ns3/csma-module.h"
|
|
#include "ns3/internet-module.h"
|
|
#include "ns3/network-module.h"
|
|
#include "ns3/point-to-point-module.h"
|
|
|
|
#include <cassert>
|
|
#include <fstream>
|
|
#include <iostream>
|
|
#include <string>
|
|
|
|
using namespace ns3;
|
|
|
|
NS_LOG_COMPONENT_DEFINE("MixedGlobalRoutingExample");
|
|
|
|
int
|
|
main(int argc, char* argv[])
|
|
{
|
|
Config::SetDefault("ns3::OnOffApplication::PacketSize", UintegerValue(210));
|
|
Config::SetDefault("ns3::OnOffApplication::DataRate", StringValue("448kb/s"));
|
|
|
|
// Allow the user to override any of the defaults and the above
|
|
// Bind ()s at run-time, via command-line arguments
|
|
CommandLine cmd(__FILE__);
|
|
cmd.Parse(argc, argv);
|
|
|
|
NS_LOG_INFO("Create nodes.");
|
|
NodeContainer c;
|
|
c.Create(7);
|
|
NodeContainer n0n2 = NodeContainer(c.Get(0), c.Get(2));
|
|
NodeContainer n1n2 = NodeContainer(c.Get(1), c.Get(2));
|
|
NodeContainer n5n6 = NodeContainer(c.Get(5), c.Get(6));
|
|
NodeContainer n2345 = NodeContainer(c.Get(2), c.Get(3), c.Get(4), c.Get(5));
|
|
|
|
InternetStackHelper internet;
|
|
internet.Install(c);
|
|
|
|
// We create the channels first without any IP addressing information
|
|
NS_LOG_INFO("Create channels.");
|
|
PointToPointHelper p2p;
|
|
p2p.SetDeviceAttribute("DataRate", StringValue("5Mbps"));
|
|
p2p.SetChannelAttribute("Delay", StringValue("2ms"));
|
|
NetDeviceContainer d0d2 = p2p.Install(n0n2);
|
|
|
|
NetDeviceContainer d1d2 = p2p.Install(n1n2);
|
|
|
|
p2p.SetDeviceAttribute("DataRate", StringValue("1500kbps"));
|
|
p2p.SetChannelAttribute("Delay", StringValue("10ms"));
|
|
NetDeviceContainer d5d6 = p2p.Install(n5n6);
|
|
|
|
// We create the channels first without any IP addressing information
|
|
CsmaHelper csma;
|
|
csma.SetChannelAttribute("DataRate", StringValue("5Mbps"));
|
|
csma.SetChannelAttribute("Delay", StringValue("2ms"));
|
|
NetDeviceContainer d2345 = csma.Install(n2345);
|
|
|
|
// Later, we add IP addresses.
|
|
NS_LOG_INFO("Assign IP Addresses.");
|
|
Ipv4AddressHelper ipv4;
|
|
ipv4.SetBase("10.1.1.0", "255.255.255.0");
|
|
ipv4.Assign(d0d2);
|
|
|
|
ipv4.SetBase("10.1.2.0", "255.255.255.0");
|
|
ipv4.Assign(d1d2);
|
|
|
|
ipv4.SetBase("10.1.3.0", "255.255.255.0");
|
|
Ipv4InterfaceContainer i5i6 = ipv4.Assign(d5d6);
|
|
|
|
ipv4.SetBase("10.250.1.0", "255.255.255.0");
|
|
ipv4.Assign(d2345);
|
|
|
|
// Create router nodes, initialize routing database and set up the routing
|
|
// tables in the nodes.
|
|
Ipv4GlobalRoutingHelper::PopulateRoutingTables();
|
|
|
|
// 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)
|
|
OnOffHelper onoff("ns3::UdpSocketFactory", InetSocketAddress(i5i6.GetAddress(1), port));
|
|
onoff.SetConstantRate(DataRate("300bps"));
|
|
onoff.SetAttribute("PacketSize", UintegerValue(50));
|
|
|
|
ApplicationContainer apps = onoff.Install(c.Get(0));
|
|
apps.Start(Seconds(1));
|
|
apps.Stop(Seconds(10));
|
|
|
|
AsciiTraceHelper ascii;
|
|
Ptr<OutputStreamWrapper> stream = ascii.CreateFileStream("mixed-global-routing.tr");
|
|
p2p.EnableAsciiAll(stream);
|
|
csma.EnableAsciiAll(stream);
|
|
|
|
p2p.EnablePcapAll("mixed-global-routing");
|
|
csma.EnablePcapAll("mixed-global-routing", false);
|
|
|
|
NS_LOG_INFO("Run Simulation.");
|
|
Simulator::Run();
|
|
Simulator::Destroy();
|
|
NS_LOG_INFO("Done.");
|
|
|
|
return 0;
|
|
}
|