[ndnSIM] ndnSIM Digest, Vol 41, Issue 11
Narges Mehran
narges.mehran at gmail.com
Mon Apr 11 09:47:25 PDT 2016
Hello
Zeinab
,
I had the same problem.
I think that for seeing the details, U should lower the trace time; e.g.,
set
Seconds(
0.0
1)
in the following line:
ndn::CsTracer::InstallAll("cs-simple2-trace.txt", Seconds(1));
Regards
On Mon, Apr 11, 2016 at 6:38 AM, <ndnsim-request at lists.cs.ucla.edu> wrote:
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> 1. receive zero for cacheHit value (Zeinab Rezaeifar)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 11 Apr 2016 11:08:42 +0900
> From: Zeinab Rezaeifar <z.rezaiefar at yahoo.com>
> To: ndnsim at lists.cs.ucla.edu
> Subject: [ndnSIM] receive zero for cacheHit value
> Message-ID: <EE51540C-ED05-4DA1-89B0-61354D8CF0F1 at yahoo.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hello everyone,
> I have run below scenario, but i received zero for cache hit ( in
> cs-simple2-trace.txt file) . is there any one that knows what is the reason.
> any help will be appreciate
> thanks
> best regards
> zeinab
>
> scenario
> ?????????
>
> #include "ns3/core-module.h"
> #include "ns3/network-module.h"
> #include "ns3/point-to-point-module.h"
> #include "ns3/ndnSIM-module.h"
>
> using namespace ns3;
> //for trace
> class PcapWriter {
> public:
> PcapWriter(const std::string& file)
> {
> PcapHelper helper;
> m_pcap = helper.CreateFile(file, std::ios::out, PcapHelper::DLT_PPP);
> }
>
> void
> TracePacket(Ptr<const Packet> packet)
> {
> static PppHeader pppHeader;
> pppHeader.SetProtocol(0x0077);
>
> m_pcap->Write(Simulator::Now(), pppHeader, packet);
> }
>
> private:
> Ptr<PcapFileWrapper> m_pcap;
> };
>
> int
> main (int argc, char *argv[])
> {
> // setting default parameters for PointToPoint links and channels
> Config::SetDefault ("ns3::PointToPointNetDevice::DataRate", StringValue
> ("1Mbps"));
> Config::SetDefault ("ns3::PointToPointChannel::Delay", StringValue
> ("10ms"));
> Config::SetDefault ("ns3::DropTailQueue::MaxPackets", StringValue
> ("20"));
>
> // Read optional command-line parameters (e.g., enable visualizer with
> ./waf --run=<> --visualize
> CommandLine cmd;
> cmd.Parse (argc, argv);
>
> // Creating nodes
> // NodeContainer nodes;
> //nodes.Create (3);
> NodeContainer routerNodes;
> NodeContainer producerNodes;
> NodeContainer consumerNodes;
>
> routerNodes.Create(9);
> producerNodes.Create(3);
> consumerNodes.Create(6);
>
> // Connecting nodes using two links
> // PointToPointHelper p2p;
> //p2p.Install (nodes.Get (0), nodes.Get (1));
> //p2p.Install (nodes.Get (1), nodes.Get (2));
> PointToPointHelper p2p;
>
>
> //Router 0
> p2p.Install(routerNodes.Get(0),
> routerNodes.Get(1));
> p2p.Install(routerNodes.Get(0),
> routerNodes.Get(2));
> p2p.Install(routerNodes.Get(0),
> routerNodes.Get(3));
> p2p.Install(routerNodes.Get(0),
> routerNodes.Get(6));
>
> //Router 1
> p2p.Install(routerNodes.Get(1),
> routerNodes.Get(2));
> p2p.Install(routerNodes.Get(1),
> routerNodes.Get(4));
> p2p.Install(routerNodes.Get(1),
> routerNodes.Get(7));
>
> //Router 2
> p2p.Install(routerNodes.Get(2),
> routerNodes.Get(5));
> p2p.Install(routerNodes.Get(2),
> routerNodes.Get(8));
>
> //Router 3
> //Router 4
> //Router 5
> //Router 6
> //Router 7
> //Router 8
>
> //Producers
> p2p.Install(routerNodes.Get(3),
> producerNodes.Get(0));
> p2p.Install(routerNodes.Get(4),
> producerNodes.Get(1));
> p2p.Install(routerNodes.Get(5),
> producerNodes.Get(2));
>
> //Consumers
> p2p.Install(consumerNodes.Get(0),
> routerNodes.Get(6));
> p2p.Install(consumerNodes.Get(1),
> routerNodes.Get(7));
> p2p.Install(consumerNodes.Get(2),
> routerNodes.Get(8));
> p2p.Install(consumerNodes.Get(3),
> routerNodes.Get(3));
> p2p.Install(consumerNodes.Get(4),
> routerNodes.Get(4));
> p2p.Install(consumerNodes.Get(5),
> routerNodes.Get(5));
>
> // Install NDN stack on all nodes
> ndn::StackHelper ccnxHelper;
> ccnxHelper.SetContentStore("ns3::ndn::cs::Lru", "MaxSize", "10000");
> //set the life time for satisfied interest message
> ccnxHelper.SetPit ("ns3::ndn::pit::Lru","PitEntryPruningTimout","20");
> /*ccnxHelper.Install(routerNodes);
> ccnxHelper.SetContentStore("ns3::ndn::cs::Nocache");
> ccnxHelper.Install(producerNodes);
> ccnxHelper.Install(consumerNodes);*/
> //ccnxHelper.InstallAll ();
>
> // ccnxHelper.SetDefaultRoutes (true);
> //ccnxHelper.InstallAll ();
> // Install NDN stack on all nodes
> // ndn::StackHelper ndnHelper;
> ccnxHelper.SetForwardingStrategy ("ns3::ndn::fw::BestRoute");
> ccnxHelper.InstallAll ();
> // Installing global routing interface on all nodes
> ndn::GlobalRoutingHelper ndnGlobalRoutingHelper;
> ndnGlobalRoutingHelper.InstallAll ();
>
> // Installing applications
>
> // Consumer
> for ( int i=0; i<6; i++)
> { ndn::AppHelper consumerHelper ("ns3::ndn::ConsumerCbr");
> // Consumer will request /prefix/0, /prefix/1, ...
> consumerHelper.SetPrefix ("/prefix");
> consumerHelper.SetAttribute ("Frequency", StringValue ("10")); // 10
> interests a second
> //for interest life time
> consumerHelper.SetAttribute ("LifeTime", StringValue ("20s"));
> //consumerHelper.Install (nodes.Get (0)); // first node
> ApplicationContainer consumer =
> consumerHelper.Install(consumerNodes.Get(i));
> consumer.Start(Seconds(0.01 * i));
> // consumer.Start(Seconds(2)); // start consumers at 0s, 1s, 2s, 3s
> // consumer.Stop(Seconds(19.0));
> }
>
>
> // Producer
> ndn::AppHelper producerHelper ("ns3::ndn::Producer");
> ApplicationContainer producers;
> // Producer will reply to all requests starting with /prefix
> /* producerHelper.SetPrefix ("/prefix");
> producerHelper.SetAttribute ("PayloadSize", StringValue("1024"));
> producerHelper.Install (nodes.Get (2)); // last node*/
> for (unsigned i=0; i<producerNodes.GetN(); i++) {
> // Producer will reply to all requests starting with /prefix
> producerHelper.SetPrefix("/prefix");
> producerHelper.SetAttribute("PayloadSize", StringValue("1024"));
> producers = producerHelper.Install(producerNodes.Get(i));}
> // Add /prefix origins to ndn::GlobalRouter
> ndnGlobalRoutingHelper.AddOrigins("/prefix", producerNodes.Get(0));
> ndnGlobalRoutingHelper.AddOrigins("/prefix", producerNodes.Get(1));
> ndnGlobalRoutingHelper.AddOrigins("/prefix", producerNodes.Get(2));
>
> // Calculate and install FIBs
> ndn::GlobalRoutingHelper::CalculateRoutes();
> //for trace
> PcapWriter trace("ndn-simple-trace.pcap");
>
> Config::ConnectWithoutContext("/NodeList/*/DeviceList/*/$ns3::PointToPointNetDevice/MacTx",
> MakeCallback(&PcapWriter::TracePacket,
> &trace));
>
> Simulator::Stop (Seconds (20.0));
> ndn::CsTracer::InstallAll("cs-simple2-trace.txt", Seconds(1));
>
> Simulator::Run ();
> Simulator::Destroy ();
>
> return 0;
> }
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