star.cc

#include "ns3/netanim-module.h"
#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/netanim-module.h"
#include "ns3/internet-module.h"
#include "ns3/point-to-point-module.h"
#include "ns3/applications-module.h"
#include "ns3/point-to-point-layout-module.h"
#include "ns3/mobility-module.h"

// Network topology (default)
//
//        n2 n3 n4              .
//         \ | /                .
//          \|/                 .
//     n1--- n0---n5            .
//          /|\                 .
//         / | \                .
//        n8 n7 n6              .
//


using namespace ns3;

NS_LOG_COMPONENT_DEFINE ("Star");

int 
main (int argc, char *argv[])
{
  //
  // Set up some default values for the simulation.
  //
  Config::SetDefault ("ns3::OnOffApplication::PacketSize", UintegerValue (137));

  // ??? try and stick 15kb/s into the data rate
  Config::SetDefault ("ns3::OnOffApplication::DataRate", StringValue ("14kb/s"));

  //
  // Default number of nodes in the star.  Overridable by command line argument.
  //
  uint32_t nSpokes = 8;

  LogComponentEnable("Star", LOG_LEVEL_INFO);

  CommandLine cmd;
  cmd.AddValue ("nSpokes", "Number of nodes to place in the star", nSpokes);
  cmd.Parse (argc, argv);

  NS_LOG_LOGIC ("Build star topology.");
  PointToPointHelper pointToPoint;
  pointToPoint.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));
  pointToPoint.SetChannelAttribute ("Delay", StringValue ("2ms"));
  PointToPointStarHelper star (nSpokes, pointToPoint);

  NS_LOG_LOGIC ("Install internet stack on all nodes.");
  InternetStackHelper internet;
  star.InstallStack (internet);

  NS_LOG_LOGIC ("Assign IP Addresses.");
  star.AssignIpv4Addresses (Ipv4AddressHelper ("10.1.1.0", "255.255.255.0"));

  NS_LOG_LOGIC ("Create applications.");
  //
  // Create a packet sink on the star "hub" to receive packets.
  // 
  uint16_t port = 50000;
  Address hubLocalAddress (InetSocketAddress (Ipv4Address::GetAny (), port));
  PacketSinkHelper packetSinkHelper ("ns3::TcpSocketFactory", hubLocalAddress);
  ApplicationContainer hubApp = packetSinkHelper.Install (star.GetHub ());
  hubApp.Start (Seconds (1.0));
  hubApp.Stop (Seconds (10.0));

  //
  // Create OnOff applications to send TCP to the hub, one on each spoke node.
  //
  OnOffHelper onOffHelper ("ns3::TcpSocketFactory", Address ());
  onOffHelper.SetAttribute ("OnTime", StringValue ("ns3::ConstantRandomVariable[Constant=1]"));
  onOffHelper.SetAttribute ("OffTime", StringValue ("ns3::ConstantRandomVariable[Constant=0]"));

  ApplicationContainer spokeApps;

  std::cout<<"Node counts: "<<star.SpokeCount()<<std::endl;
  for (uint32_t i = 0; i < star.SpokeCount (); ++i)
    {
      AddressValue remoteAddress (InetSocketAddress (star.GetHubIpv4Address (i), port));
      onOffHelper.SetAttribute ("Remote", remoteAddress);
      spokeApps.Add (onOffHelper.Install (star.GetSpokeNode (i)));
    }
  spokeApps.Start (Seconds (1.0));
  spokeApps.Stop (Seconds (10.0));

  NS_LOG_LOGIC ("Enable static global routing.");
  //
  // Turn on global static routing so we can actually be routed across the star.
  //
  Ipv4GlobalRoutingHelper::PopulateRoutingTables ();

  NS_LOG_LOGIC ("Enable pcap tracing.");
  //
  // Do pcap tracing on all point-to-point devices on all nodes.
  //
  pointToPoint.EnablePcapAll ("star");


  MobilityHelper mobility;
  //mobility.SetPositionAllocator ("ns3::GridPositionAllocator",  
  //                                "MinX", DoubleValue (0.0),  
  //                                "MinY", DoubleValue (0.0),  
  //                                "DeltaX", DoubleValue (5.0),  
  //                                "DeltaY", DoubleValue (10.0),  
  //                                "GridWidth", UintegerValue (3),  
  //                                "LayoutType", StringValue ("RowFirst"));
  mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");

  mobility.Install(star.GetSpokeNode(0));
  mobility.Install(star.GetSpokeNode(1));
  mobility.Install(star.GetSpokeNode(2));
  mobility.Install(star.GetSpokeNode(3));
  mobility.Install(star.GetSpokeNode(4));
  mobility.Install(star.GetSpokeNode(5));
  mobility.Install(star.GetSpokeNode(6));
  mobility.Install(star.GetSpokeNode(7));
  mobility.Install(star.GetHub());
 
  AnimationInterface anim("star.xml");

  anim.SetConstantPosition(star.GetSpokeNode(0), 0,-1,0);
  anim.SetConstantPosition(star.GetSpokeNode(1), -1,-1,0);
  anim.SetConstantPosition(star.GetSpokeNode(2), -1,0,0);
  anim.SetConstantPosition(star.GetSpokeNode(3), -1,1,0);
  anim.SetConstantPosition(star.GetSpokeNode(4), 0,1,0);
  anim.SetConstantPosition(star.GetSpokeNode(5), 1,1,0);
  anim.SetConstantPosition(star.GetSpokeNode(6), 1,0,0);
  anim.SetConstantPosition(star.GetSpokeNode(7), 1,-1,0);
  anim.SetConstantPosition(star.GetHub(), 0,0,0);

  NS_LOG_LOGIC ("Run Simulation.");
  Simulator::Run ();
  Simulator::Destroy ();
  NS_LOG_LOGIC ("Done.");

  return 0;
}