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// ndn-simple.cpp
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#include "ns3/core-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 "ns3/ndnSIM-module.h"
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#include "ns3/ndnSIM/helper/ndn-link-control-helper.hpp"
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namespace ns3 {
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int
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main(int argc, char* argv[])
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{
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// setting default parameters for PointToPoint links and channels
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Config::SetDefault("ns3::PointToPointNetDevice::DataRate", StringValue("10Mbps"));
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Config::SetDefault("ns3::PointToPointChannel::Delay", StringValue("10ms"));
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Config::SetDefault("ns3::DropTailQueue::MaxPackets", StringValue("20"));
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// Read optional command-line parameters (e.g., enable visualizer with ./waf --run=<> --visualize
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CommandLine cmd;
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cmd.Parse(argc, argv);
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// Creating nodes
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NodeContainer nodes;
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nodes.Create(6);
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// Connecting nodes using two links
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PointToPointHelper p2p;
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p2p.Install(nodes.Get(0), nodes.Get(1));
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p2p.Install(nodes.Get(1), nodes.Get(2));
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p2p.Install(nodes.Get(1), nodes.Get(3));
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p2p.Install(nodes.Get(2), nodes.Get(4));
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p2p.Install(nodes.Get(3), nodes.Get(4));
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p2p.Install(nodes.Get(4), nodes.Get(5));
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// Install NDN stack on all nodes
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ndn::StackHelper ndnHelper;
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ndnHelper.SetDefaultRoutes(true);
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ndnHelper.InstallAll();
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// Choosing forwarding strategy
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ndn::StrategyChoiceHelper::InstallAll("/prefix", "/localhost/nfd/strategy/broadcast");
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// Installing applications
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// Consumer
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ndn::AppHelper consumerHelper("ns3::ndn::ConsumerCbr");
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// Consumer will request /prefix/0, /prefix/1, ...
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consumerHelper.SetPrefix("/prefix");
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consumerHelper.SetAttribute("Frequency", StringValue("10")); // 10 interests a second
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consumerHelper.Install(nodes.Get(0)); // first node
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// Producer
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ndn::AppHelper producerHelper("ns3::ndn::Producer");
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// Producer will reply to all requests starting with /prefix
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producerHelper.SetPrefix("/prefix");
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producerHelper.SetAttribute("PayloadSize", StringValue("1024"));
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// ndn::AppHelper producerHelper("Hijacker");
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producerHelper.Install(nodes.Get(5)); // last node
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// // Calculate and install FIBs
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// ndn::GlobalRoutingHelper ndnGlobalRoutingHelper;
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// ndnGlobalRoutingHelper.InstallAll();
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// ndnGlobalRoutingHelper.AddOrigins("/prefix", nodes.Get(5));
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// ndn::GlobalRoutingHelper::CalculateRoutes();
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Simulator::Schedule(Seconds(10.0), ndn::LinkControlHelper::FailLink, nodes.Get(2), nodes.Get(4));
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Simulator::Schedule(Seconds(20.0), ndn::LinkControlHelper::UpLink, nodes.Get(2), nodes.Get(4));
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Simulator::Schedule(Seconds(30.0), ndn::LinkControlHelper::FailLink, nodes.Get(4), nodes.Get(2));
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Simulator::Schedule(Seconds(40.0), ndn::LinkControlHelper::UpLink, nodes.Get(4), nodes.Get(2));
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Simulator::Schedule(Seconds(45.0), ndn::LinkControlHelper::FailLink, nodes.Get(2), nodes.Get(3));
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Simulator::Schedule(Seconds(50.0), ndn::LinkControlHelper::UpLink, nodes.Get(2), nodes.Get(3));
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Simulator::Schedule(Seconds(55.0), ndn::LinkControlHelper::FailLink, nodes.Get(3), nodes.Get(2));
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Simulator::Schedule(Seconds(60.0), ndn::LinkControlHelper::UpLink, nodes.Get(3), nodes.Get(2));
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Simulator::Stop(Seconds(100.0));
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Simulator::Run();
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Simulator::Destroy();
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return 0;
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}
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} // namespace ns3
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int
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main(int argc, char* argv[])
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{
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return ns3::main(argc, argv);
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}
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