ndn topo

#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/ndnSIM-module.h"


namespace ns3 {

/**
 * This scenario simulates a grid topology (using topology reader module)
 *
 *   /------\                                                    /------\
 *   | Src1 |<--+                                            +-->| Dst1 |
 *   \------/    \                                          /    \------/
 *                \                                        /
 *                 +-->/------\                 /------\<-+
 *                     | Rtr1 |<===============>| Rtr2 |
 *                 +-->\------/                 \------/<-+
 *                /                                        \
 *   /------\    /                                          \    /------\
 *   | Src2 |<--+                                            +-->| Dst2 |
 *   \------/                                                    \------/
 *
 *
 */

//Lifetime function
void CacheEntryRemoved(std::string context, Ptr<const ndn::cs::Entry> entry, Time lifetime)
{
   std::cout << entry->GetName() << " " << lifetime.ToDouble(Time::S) << "s" << std::endl;
}



int main(int argc, char* argv[])
{
  CommandLine cmd;
  cmd.Parse(argc, argv);

  AnnotatedTopologyReader topologyReader("", 25);
  topologyReader.SetFileName("../ns-3/src/ndnSIM/examples/topologies/topo-6-node.txt");
  //topologyReader.SetFileName("/home/christos/ndn/scenario/extensions/topo6.txt");
  topologyReader.Read();

  // Install NDN stack on all nodes
  ndn::StackHelper ndnHelper;
  //ndnHelper.SetOldContentStore("nfd:cs:lru", "MaxSize", "10000");
  ndnHelper.SetOldContentStore("ns3::ndn::cs::Stats::Fifo", "MaxSize", "50000");
  ndnHelper.InstallAll();

 // connect (each node) to lifetime trace
  Config::Connect("/Nodelist/ns3::ndn::cs::Stats::Fifo/WillRemoveEntry", MakeCallback(CacheEntryRemoved));

  // Choosing forwarding strategy
  ndn::StrategyChoiceHelper::InstallAll("/prefix", "/localhost/nfd/strategy/best-route");

  // Installing global routing interface on all nodes
  ndn::GlobalRoutingHelper ndnGlobalRoutingHelper;
  ndnGlobalRoutingHelper.InstallAll();

  // Getting containers for the consumer/producer
  Ptr<Node> consumer1 = Names::Find<Node>("Src1");
  Ptr<Node> consumer2 = Names::Find<Node>("Src2");

  Ptr<Node> producer1 = Names::Find<Node>("Dst1");
  Ptr<Node> producer2 = Names::Find<Node>("Dst2");

  ndn::AppHelper consumerHelper("ns3::ndn::ConsumerCbr");
  consumerHelper.SetAttribute("Frequency", StringValue("32")); // 32 interests a second

  // on the first consumer node install a Consumer application
  // that will express interests in /dst1 namespace
  consumerHelper.SetPrefix("/dst1");
  consumerHelper.Install(consumer1);

  // on the second consumer node install a Consumer application
  // that will express interests in /dst2 namespace
  consumerHelper.SetPrefix("/dst2");
  consumerHelper.Install(consumer2);

  ndn::AppHelper producerHelper("ns3::ndn::Producer");
  producerHelper.SetAttribute("PayloadSize", StringValue("320000"));

  // Register /dst1 prefix with global routing controller and
  // install producer that will satisfy Interests in /dst1 namespace
  ndnGlobalRoutingHelper.AddOrigins("/dst1", producer1);
  producerHelper.SetPrefix("/dst1");
  producerHelper.Install(producer1);

  // Register /dst2 prefix with global routing controller and
  // install producer that will satisfy Interests in /dst2 namespace
  ndnGlobalRoutingHelper.AddOrigins("/dst2", producer2);
  producerHelper.SetPrefix("/dst2");
  producerHelper.Install(producer2);

  // Calculate and install FIBs
  ndn::GlobalRoutingHelper::CalculateRoutes();

  Simulator::Stop(Seconds(20.0));
  //ndn::L3RateTracer::InstallAll("top_320.txt", Seconds(0.5));
  ndn::CsTracer::InstallAll("cs-trace320.txt", Seconds(0.5));
 // ndn::AppDelayTracer::InstallAll("delay320.txt");
  Simulator::Run();
  Simulator::Destroy();

  return 0;
}

} // namespace ns3

int
main(int argc, char* argv[])
{
  return ns3::main(argc, argv);
}