Not getting any data in trace file.

[shraddha more]

I am new for ns3..i have written code in ns3 for sending data using TCP as i use  PacketSinkHelper and  BulkSendHelper class in my code.  While running the code it shows successfully build also shows trace file but that generated trace file is empty.

 Please someone look into my code and suggest what is missing in my code to generate data in trace file.

#include "ns3/lte-helper.h"
#include "ns3/epc-helper.h"
#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/ipv4-global-routing-helper.h"
#include "ns3/internet-module.h"
#include "ns3/mobility-module.h"
#include "ns3/lte-module.h"
#include "ns3/applications-module.h"
#include "ns3/point-to-point-helper.h"
#include "ns3/config-store.h"
#include "ns3/packet-sink.h"
//#include "ns3/gtk-config-store.h"

using namespace ns3;

/**
 * Sample simulation script for LTE+EPC. It instantiates several eNodeB,
 * attaches one UE per eNodeB starts a flow for each UE to  and from a remote host.
 * It also  starts yet another flow between each UE pair.
 */

int
main (int argc, char *argv[])
{

  uint16_t numberOfNodes = 10;
  double simTime = 1.1;
  double distance = 60.0;
  uint32_t maxBytes = 0;

  // Command line arguments
  CommandLine cmd;
  cmd.AddValue("numberOfNodes", "Number of eNodeBs + UE pairs", numberOfNodes);
  cmd.AddValue("simTime", "Total duration of the simulation [s])", simTime);
  cmd.AddValue("distance", "Distance between eNBs [m]", distance);
  cmd.AddValue ("maxBytes","Total number of bytes for application to send", maxBytes); 
  cmd.Parse(argc, argv);

  Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();
  Ptr<PointToPointEpcHelper>  epcHelper = CreateObject<PointToPointEpcHelper> ();
  lteHelper->SetEpcHelper (epcHelper);

  ConfigStore inputConfig;
  inputConfig.ConfigureDefaults();

  // parse again so you can override default values from the command line
  cmd.Parse(argc, argv);

  Ptr<Node> pgw = epcHelper->GetPgwNode ();

   // Create a single RemoteHost
  NodeContainer remoteHostContainer;
  remoteHostContainer.Create (1);
  Ptr<Node> remoteHost = remoteHostContainer.Get (0);
  InternetStackHelper internet;
  internet.Install (remoteHostContainer);

  // Create the Internet
  PointToPointHelper p2ph;
  p2ph.SetDeviceAttribute ("DataRate", DataRateValue (DataRate ("100Gb/s")));
  p2ph.SetDeviceAttribute ("Mtu", UintegerValue (1500));
  p2ph.SetChannelAttribute ("Delay", TimeValue (Seconds (0.010)));
  NetDeviceContainer internetDevices = p2ph.Install (pgw, remoteHost);
  Ipv4AddressHelper ipv4h;
  ipv4h.SetBase ("1.0.0.0", "255.0.0.0");
  Ipv4InterfaceContainer internetIpIfaces = ipv4h.Assign (internetDevices);
  // interface 0 is localhost, 1 is the p2p device
  Ipv4Address remoteHostAddr = internetIpIfaces.GetAddress (1);

  Ipv4StaticRoutingHelper ipv4RoutingHelper;
  Ptr<Ipv4StaticRouting> remoteHostStaticRouting = ipv4RoutingHelper.GetStaticRouting (remoteHost->GetObject<Ipv4> ());
  remoteHostStaticRouting->AddNetworkRouteTo (Ipv4Address ("7.0.0.0"), Ipv4Mask ("255.0.0.0"), 1);

  NodeContainer ueNodes;
  NodeContainer enbNodes;
  enbNodes.Create(numberOfNodes);
  ueNodes.Create(numberOfNodes);

  // Install Mobility Model
  Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator> ();
  for (uint16_t i = 0; i < numberOfNodes; i++)
    {
      positionAlloc->Add (Vector(distance * i, 0, 0));
    }
  MobilityHelper mobility;
  mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
  mobility.SetPositionAllocator(positionAlloc);
  mobility.Install(enbNodes);
  mobility.Install(ueNodes);

  // Install LTE Devices to the nodes
  NetDeviceContainer enbLteDevs = lteHelper->InstallEnbDevice (enbNodes);
  NetDeviceContainer ueLteDevs = lteHelper->InstallUeDevice (ueNodes);

  // Install the IP stack on the UEs
  internet.Install (ueNodes);
  Ipv4InterfaceContainer ueIpIface;
  ueIpIface = epcHelper->AssignUeIpv4Address (NetDeviceContainer (ueLteDevs));
  // Assign IP address to UEs, and install applications
  for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
    {
      Ptr<Node> ueNode = ueNodes.Get (u);
      // Set the default gateway for the UE
      Ptr<Ipv4StaticRouting> ueStaticRouting = ipv4RoutingHelper.GetStaticRouting (ueNode->GetObject<Ipv4> ());
      ueStaticRouting->SetDefaultRoute (epcHelper->GetUeDefaultGatewayAddress (), 1);
    }

  // Attach one UE per eNodeB
  for (uint16_t i = 0; i < numberOfNodes; i++)
      {
        lteHelper->Attach (ueLteDevs.Get(i), enbLteDevs.Get(i));
        // side effect: the default EPS bearer will be activated
      }


  // Install and start applications on UEs and remote host
  uint16_t dlPort = 1234;
  uint16_t ulPort = 2000;
  uint16_t otherPort = 3000;
  ApplicationContainer clientApps;
  ApplicationContainer serverApps;
  for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
    {
      ++ulPort;
      ++otherPort;
      PacketSinkHelper dlPacketSinkHelper ("ns3::TcpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), dlPort));
      PacketSinkHelper ulPacketSinkHelper ("ns3::TcpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), ulPort));
      PacketSinkHelper packetSinkHelper ("ns3::TcpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), otherPort));
      serverApps.Add (dlPacketSinkHelper.Install (ueNodes.Get(u)));
      serverApps.Add (ulPacketSinkHelper.Install (remoteHost));
      serverApps.Add (packetSinkHelper.Install (ueNodes.Get(u)));

      BulkSendHelper dlClient ("ns3::TcpSocketFactory", InetSocketAddress(ueIpIface.GetAddress (u), dlPort));
      dlClient.SetAttribute ("MaxBytes", UintegerValue(maxBytes));

      BulkSendHelper ulClient ("ns3::TcpSocketFactory",InetSocketAddress(remoteHostAddr, ulPort));
      ulClient.SetAttribute ("MaxBytes", UintegerValue(maxBytes));

      BulkSendHelper client ("ns3::TcpSocketFactory",InetSocketAddress(ueIpIface.GetAddress (u), otherPort));
      client.SetAttribute ("MaxBytes", UintegerValue(maxBytes));

      clientApps.Add (dlClient.Install (remoteHost));
      clientApps.Add (ulClient.Install (ueNodes.Get(u)));
      if (u+1 < ueNodes.GetN ())
        {
          clientApps.Add (client.Install (ueNodes.Get(u+1)));
        }
      else
        {
          clientApps.Add (client.Install (ueNodes.Get(0)));
        }
    }
  serverApps.Start (Seconds (0.01));
  clientApps.Start (Seconds (0.01));

  serverApps.Stop (Seconds (10.0));
  clientApps.Stop (Seconds (10.0));


  lteHelper->EnableTraces ();
  // Uncomment to enable PCAP tracing
  //p2ph.EnablePcapAll("lena-epc-first");

  Simulator::Stop(Seconds(simTime));
  Simulator::Run();

  /*GtkConfigStore config;
  config.ConfigureAttributes();*/

  Simulator::Destroy();
  return 0;

}

[Carlos Jr]

Hey shraddha, I have the same problem.

I'm trying to use de lena-simple-epc, but when do execute the command ./was --run lena-simple-epc Not getting any data in the trace file.

Did you resolve your problem? Could you help me?