C++ NodeContainer::Create方法代码示例

bool
Ns3WimaxSimpleOFDMTestCase::DoRunOnce (double FrameDuration)
{
  WimaxHelper::SchedulerType scheduler = WimaxHelper::SCHED_TYPE_SIMPLE;
  NodeContainer ssNodes;
  NodeContainer bsNodes;
  ssNodes.Create (3);
  bsNodes.Create (1);

  WimaxHelper wimax;

  NetDeviceContainer ssDevs, bsDevs;

  ssDevs = wimax.Install (ssNodes, WimaxHelper::DEVICE_TYPE_SUBSCRIBER_STATION,
                          WimaxHelper::SIMPLE_PHY_TYPE_OFDM, scheduler, FrameDuration);
  bsDevs = wimax.Install (bsNodes, WimaxHelper::DEVICE_TYPE_BASE_STATION,
                          WimaxHelper::SIMPLE_PHY_TYPE_OFDM, scheduler, FrameDuration);

  Simulator::Stop (Seconds (1));
  Simulator::Run ();
  for (int i = 0; i < 3; i++)
    {
      if (ssDevs.Get (i)->GetObject<SubscriberStationNetDevice> ()->IsRegistered ()
          == false)
        {
          NS_LOG_DEBUG ("SS[" << i << "] not registered");
          return true; // Test fail because SS[i] is not registered
        }
    }
  Simulator::Destroy ();
  return (false); // Test was ok, all the SSs are registered

}

int 
main (int argc, char *argv[])
{
  NodeContainer nodes;
  nodes.Create (2);

  PointToPointHelper pointToPoint;
  NetDeviceContainer devices;
  devices = pointToPoint.Install (nodes);

  InternetStackHelper stack;
  stack.Install (nodes);
  Ipv4AddressHelper address;
  address.SetBase ("10.1.1.0", "255.255.255.252");
  Ipv4InterfaceContainer interfaces = address.Assign (devices);

  uint16_t sinkPort = 8080;
  Address sinkAddress (InetSocketAddress (interfaces.GetAddress (1), sinkPort));

  Ptr<PacketSink> receiverApplication = CreateObject<PacketSink> ();
  receiverApplication->SetAttribute ("Local", AddressValue (InetSocketAddress (Ipv4Address::GetAny(), 8080)));
  receiverApplication->SetAttribute ("Protocol", TypeIdValue(TcpSocketFactory::GetTypeId()));
  receiverApplication->TraceConnectWithoutContext ("Rx", MakeCallback (&CountRx));
  nodes.Get(1)->AddApplication(receiverApplication);

  Ptr<MyApp> app = CreateObject<MyApp> (nodes.Get (0), sinkAddress);
  nodes.Get (0)->AddApplication (app);

  Simulator::Stop ();
  Simulator::Run ();
  Simulator::Destroy ();

  return 0;
}

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


  NodeContainer c;
  c.Create (10000);

  MobilityHelper mobility;
  mobility.SetPositionAllocator ("ns3::RandomDiscPositionAllocator",
                                 "X", StringValue ("100.0"),
                                 "Y", StringValue ("100.0"),
                                 "Rho", StringValue ("ns3::UniformRandomVariable[Min=0|Max=30]"));
  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
  mobility.Install (c);

  Config::Connect ("/NodeList/*/$ns3::MobilityModel/CourseChange",
                   MakeCallback (&CourseChange));

  Simulator::Stop (Seconds (100.0));

  Simulator::Run ();

  Simulator::Destroy ();
  return 0;
}

int main (int argc, char *argv[])
{
#ifdef NS3_CLICK
  NodeContainer csmaNodes;
  csmaNodes.Create (2);

  // Setup CSMA channel between the nodes
  CsmaHelper csma;
  csma.SetChannelAttribute ("DataRate", DataRateValue (DataRate (5000000)));
  csma.SetChannelAttribute ("Delay", TimeValue (MilliSeconds (2)));
  NetDeviceContainer csmaDevices = csma.Install (csmaNodes);

  // Install normal internet stack on node B
  InternetStackHelper internet;
  internet.Install (csmaNodes.Get (1));

  // Install Click on node A
  ClickInternetStackHelper clickinternet;
  clickinternet.SetClickFile (csmaNodes.Get (0), "src/click/examples/nsclick-lan-single-interface.click");
  clickinternet.SetRoutingTableElement (csmaNodes.Get (0), "rt");
  clickinternet.Install (csmaNodes.Get (0));

  // Configure IP addresses for the nodes
  Ipv4AddressHelper ipv4;
  ipv4.SetBase ("172.16.1.0", "255.255.255.0");
  ipv4.Assign (csmaDevices);

  // Configure traffic application and sockets
  Address LocalAddress (InetSocketAddress (Ipv4Address::GetAny (), 50000));
  PacketSinkHelper packetSinkHelper ("ns3::TcpSocketFactory", LocalAddress);
  ApplicationContainer recvapp = packetSinkHelper.Install (csmaNodes.Get (1));
  recvapp.Start (Seconds (5.0));
  recvapp.Stop (Seconds (10.0));

  OnOffHelper onOffHelper ("ns3::TcpSocketFactory", Address ());
  onOffHelper.SetAttribute ("OnTime", StringValue ("ns3::ConstantRandomVariable[Constant=1]"));
  onOffHelper.SetAttribute ("OffTime", StringValue ("ns3::ConstantRandomVariable[Constant=0]"));

  ApplicationContainer appcont;

  AddressValue remoteAddress (InetSocketAddress (Ipv4Address ("172.16.1.2"), 50000));
  onOffHelper.SetAttribute ("Remote", remoteAddress);
  appcont.Add (onOffHelper.Install (csmaNodes.Get (0)));

  appcont.Start (Seconds (5.0));
  appcont.Stop (Seconds (10.0));

  // For tracing
  csma.EnablePcap ("nsclick-simple-lan", csmaDevices, false);

  Simulator::Stop (Seconds (20.0));
  Simulator::Run ();

  Simulator::Destroy ();
  return 0;
#else
  NS_FATAL_ERROR ("Can't use ns-3-click without NSCLICK compiled in");
#endif
}

//
// Network topology
//
//       n0    n1   n2   n3
//       |     |    |    |
//     =====================
//
// - Packet socket flow from n0 to n1 and from node n3 to n0
// -- We will test reception at node n0
// - Default 512 byte packets generated by traffic generator
//
void
CsmaPacketSocketTestCase::DoRun (void)
{
  // Here, we will explicitly create four nodes.
  NodeContainer nodes;
  nodes.Create (4);

  PacketSocketHelper packetSocket;
  packetSocket.Install (nodes);

  // create the shared medium used by all csma devices.
  Ptr<CsmaChannel> channel = CreateObjectWithAttributes<CsmaChannel> (
      "DataRate", DataRateValue (DataRate (5000000)),
      "Delay", TimeValue (MilliSeconds (2)));

  // use a helper function to connect our nodes to the shared channel.
  CsmaHelper csma;
  csma.SetDeviceAttribute ("EncapsulationMode", StringValue ("Llc"));
  NetDeviceContainer devs = csma.Install (nodes, channel);

  // Create the OnOff application to send raw datagrams
  //
  // Make packets be sent about every DefaultPacketSize / DataRate = 
  // 4096 bits / (5000 bits/second) = 0.82 second.
  PacketSocketAddress socket;
  socket.SetSingleDevice (devs.Get (0)->GetIfIndex ());
  socket.SetPhysicalAddress (devs.Get (1)->GetAddress ());
  socket.SetProtocol (2);
  OnOffHelper onoff ("ns3::PacketSocketFactory", Address (socket));
  onoff.SetConstantRate (DataRate (5000));
  ApplicationContainer apps = onoff.Install (nodes.Get (0));
  apps.Start (Seconds (1.0));
  apps.Stop (Seconds (10.0));

  socket.SetSingleDevice (devs.Get (3)->GetIfIndex ());
  socket.SetPhysicalAddress (devs.Get (0)->GetAddress ());
  socket.SetProtocol (3);
  onoff.SetAttribute ("Remote", AddressValue (socket));
  apps = onoff.Install (nodes.Get (3));
  apps.Start (Seconds (1.0));
  apps.Stop (Seconds (10.0));

  PacketSinkHelper sink = PacketSinkHelper ("ns3::PacketSocketFactory",
                                            socket);
  apps = sink.Install (nodes.Get (0));
  apps.Start (Seconds (0.0));
  apps.Stop (Seconds (20.0));

  // Trace receptions
  Config::Connect ("/NodeList/0/ApplicationList/*/$ns3::PacketSink/Rx",
                   MakeCallback (&CsmaPacketSocketTestCase::SinkRx, this));
 
  Simulator::Run ();
  Simulator::Destroy ();

  // We should have received 10 packets on node 0
  NS_TEST_ASSERT_MSG_EQ (m_count, 10, "Node 0 should have received 10 packets");
}

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);

  // Connecting nodes using two links
  PointToPointHelper p2p;
  p2p.Install(nodes.Get(0), nodes.Get(1));
  p2p.Install(nodes.Get(1), nodes.Get(2));

  // Install NDN stack on all nodes
  ndn::StackHelper ndnHelper;
  ndnHelper.SetDefaultRoutes(true);
  ndnHelper.SetOldContentStore(
    "ns3::ndn::cs::Freshness::Lru"); // don't set up max size here, will use default value = 100
  ndnHelper.InstallAll();

  // set up max sizes, after NDN stack is installed
  Config::Set("/NodeList/0/$ns3::ndn::ContentStore/MaxSize",
              UintegerValue(
                1)); // number after nodeList is global ID of the node (= node->GetId ())
  Config::Set("/NodeList/1/$ns3::ndn::ContentStore/MaxSize", UintegerValue(2));
  Config::Set("/NodeList/2/$ns3::ndn::ContentStore/MaxSize", UintegerValue(200));

  // Installing applications

  // Consumer
  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
  consumerHelper.Install(nodes.Get(0));                        // first node

  // Producer
  ndn::AppHelper producerHelper("ns3::ndn::Producer");
  // Producer will reply to all requests starting with /prefix
  producerHelper.SetPrefix("/prefix");
  producerHelper.SetAttribute("PayloadSize", StringValue("1024"));
  producerHelper.Install(nodes.Get(2)); // last node

  Simulator::Stop(Seconds(20.0));

  Simulator::Run();
  Simulator::Destroy();

  return 0;
}

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

  //
  // We are interacting with the outside, real, world.  This means we have to 
  // interact in real-time and therefore means we have to use the real-time
  // simulator and take the time to calculate checksums.
  //
  GlobalValue::Bind ("SimulatorImplementationType", StringValue ("ns3::RealtimeSimulatorImpl"));
  GlobalValue::Bind ("ChecksumEnabled", BooleanValue (true));

  //
  // Create two ghost nodes.  The first will represent the virtual machine host
  // on the left side of the network; and the second will represent the VM on 
  // the right side.
  //
  NodeContainer nodes;
  nodes.Create (2);

  //
  // Use a CsmaHelper to get a CSMA channel created, and the needed net 
  // devices installed on both of the nodes.  The data rate and delay for the
  // channel can be set through the command-line parser.  For example,
  //
  // ./waf --run "tap=csma-virtual-machine --ns3::CsmaChannel::DataRate=10000000"
  //
  CsmaHelper csma;
  NetDeviceContainer devices = csma.Install (nodes);

  //
  // Use the TapBridgeHelper to connect to the pre-configured tap devices for 
  // the left side.  We go with "UseBridge" mode since the CSMA devices support
  // promiscuous mode and can therefore make it appear that the bridge is 
  // extended into ns-3.  The install method essentially bridges the specified
  // tap to the specified CSMA device.
  //
  TapBridgeHelper tapBridge;
  tapBridge.SetAttribute ("Mode", StringValue ("UseBridge"));
  tapBridge.SetAttribute ("DeviceName", StringValue ("tap-left"));
  tapBridge.Install (nodes.Get (0), devices.Get (0));

  //
  // Connect the right side tap to the right side CSMA device on the right-side
  // ghost node.
  //
  tapBridge.SetAttribute ("DeviceName", StringValue ("tap-right"));
  tapBridge.Install (nodes.Get (1), devices.Get (1));

  //
  // Run the simulation for ten minutes to give the user time to play around
  //
  Simulator::Stop (Seconds (600.));
  Simulator::Run ();
  Simulator::Destroy ();
}

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);

  // Connecting nodes using two links
  PointToPointHelper p2p;
  p2p.Install(nodes.Get(0), nodes.Get(1));
  p2p.Install(nodes.Get(1), nodes.Get(2));

  // Install NDN stack on all nodes
  StackHelper ndnHelper;
  ndnHelper.InstallAll();

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

  // Installing applications

  // Consumer
  ndn::AppHelper consumerHelper("PingClientApp");
  consumerHelper.SetAttribute("Prefix", StringValue("/ping"));
  consumerHelper.SetAttribute("nPings", StringValue("3"));
  consumerHelper.Install(nodes.Get(0)).Start(Seconds(2));

  // Producer
  ndn::AppHelper producerHelper("PingServerApp");
  producerHelper.SetAttribute("Prefix", StringValue("/ping"));
  producerHelper.SetAttribute("nMaxPings", StringValue("3"));
  producerHelper.Install(nodes.Get(2)).Start(Seconds(0.1));

  ndnGlobalRoutingHelper.AddOrigins("/ping", nodes.Get(2));

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

  Simulator::Stop(Seconds(20.0));

  Simulator::Run();
  Simulator::Destroy();

  return 0;
}

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::QueueBase::MaxPackets", UintegerValue(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);

  // Connecting nodes using two links
  PointToPointHelper p2p;
  p2p.Install(nodes.Get(0), nodes.Get(1));
  p2p.Install(nodes.Get(1), nodes.Get(2));

  // Install NDN stack on all nodes
  ndn::StackHelper ndnHelper;
  ndnHelper.SetDefaultRoutes(true);
  ndnHelper.InstallAll();

  // Installing applications

  // Consumer
  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
  consumerHelper.Install(nodes.Get(0));                        // first node

  // Producer
  ndn::AppHelper producerHelper("ns3::ndn::Producer");
  // Producer will reply to all requests starting with /prefix
  producerHelper.SetPrefix("/prefix");
  producerHelper.SetAttribute("PayloadSize", StringValue("1024"));
  producerHelper.SetAttribute("Signature", UintegerValue(100));
  producerHelper.SetAttribute("KeyLocator", StringValue("/unique/key/locator"));
  producerHelper.Install(nodes.Get(2)); // last node

  PcapWriter trace("ndn-simple-trace.pcap");
  Config::ConnectWithoutContext("/NodeList/*/DeviceList/*/$ns3::PointToPointNetDevice/MacTx",
                                MakeCallback(&PcapWriter::TracePacket, &trace));

  Simulator::Stop(Seconds(20.0));

  Simulator::Run();
  Simulator::Destroy();

  return 0;
}

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);

  // Connecting nodes using two links
  PointToPointHelper p2p;
  p2p.Install(nodes.Get(0), nodes.Get(1));
  p2p.Install(nodes.Get(1), nodes.Get(2));

  // Install NDN stack on all nodes
  ndn::StackHelper ndnHelper;
  ndnHelper.SetDefaultRoutes(true);
  ndnHelper.InstallAll();

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

  // Installing applications

  // Consumer
  ndn::AppHelper consumerHelper("ns3::ndn::ConsumerCbr");
  // Consumer will request /prefix/0, /prefix/1, ...
  consumerHelper.SetPrefix("/prefix");
  consumerHelper.SetAttribute("Frequency", StringValue("1")); // 10 interests a second
  consumerHelper.SetAttribute("MaxSeq",IntegerValue(5));
  consumerHelper.Install(nodes.Get(0));                        // first node

  // Producer
  ndn::AppHelper producerHelper("ns3::ndn::Producer");
  // Producer will reply to all requests starting with /prefix
  producerHelper.SetPrefix("/prefix");
  producerHelper.SetAttribute("PayloadSize", StringValue("1024"));
  producerHelper.Install(nodes.Get(2)); // last node

  Simulator::Stop(Seconds(20.0));

  Simulator::Run();
  Simulator::Destroy();

  return 0;
}

//
// Network topology
//    (sender)         (receiver)
//       n0    n1   n2   n3
//       |     |    |    |
//     =====================
//
// Node n0 sends data to node n3 over a raw IP socket.  The protocol
// number used is 2.
//
void
CsmaRawIpSocketTestCase::DoRun (void)
{
  // Here, we will explicitly create four nodes.
  NodeContainer c;
  c.Create (4);

  // connect all our nodes to a shared channel.
  CsmaHelper csma;
  csma.SetChannelAttribute ("DataRate", DataRateValue (DataRate (5000000)));
  csma.SetChannelAttribute ("Delay", TimeValue (MilliSeconds (2)));
  csma.SetDeviceAttribute ("EncapsulationMode", StringValue ("Llc"));
  NetDeviceContainer devs = csma.Install (c);

  // add an ip stack to all nodes.
  InternetStackHelper ipStack;
  ipStack.Install (c);

  // assign ip addresses
  Ipv4AddressHelper ip;
  ip.SetBase ("192.168.1.0", "255.255.255.0");
  Ipv4InterfaceContainer addresses = ip.Assign (devs);

  // IP protocol configuration
  //
  // Make packets be sent about every DefaultPacketSize / DataRate = 
  // 4096 bits / (5000 bits/second) = 0.82 second.
  Config::SetDefault ("ns3::Ipv4RawSocketImpl::Protocol", StringValue ("2"));
  InetSocketAddress dst = InetSocketAddress (addresses.GetAddress (3));
  OnOffHelper onoff = OnOffHelper ("ns3::Ipv4RawSocketFactory", dst);
  onoff.SetConstantRate (DataRate (5000));

  ApplicationContainer apps = onoff.Install (c.Get (0));
  apps.Start (Seconds (1.0));
  apps.Stop (Seconds (10.0));

  PacketSinkHelper sink = PacketSinkHelper ("ns3::Ipv4RawSocketFactory", dst);
  apps = sink.Install (c.Get (3));
  apps.Start (Seconds (0.0));
  apps.Stop (Seconds (12.0));

  // Trace receptions
  Config::ConnectWithoutContext ("/NodeList/3/ApplicationList/0/$ns3::PacketSink/Rx", 
                                 MakeCallback (&CsmaRawIpSocketTestCase::SinkRx, this));

  Simulator::Run ();
  Simulator::Destroy ();

  // We should have sent and received 10 packets
  NS_TEST_ASSERT_MSG_EQ (m_count, 10, "Node 3 should have received 10 packets");
}

int
main (int argc, char *argv[])
{
  Time::SetResolution (Time::NS);
  LogComponentEnable ("UdpEchoClientApplication", LOG_LEVEL_INFO);
  LogComponentEnable ("UdpEchoServerApplication", LOG_LEVEL_INFO);

  NodeContainer nodes;
  nodes.Create (2);

  PointToPointHelper pointToPoint;
  pointToPoint.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));
  pointToPoint.SetChannelAttribute ("Delay", StringValue ("2ms"));

  NetDeviceContainer devices;
  devices = pointToPoint.Install (nodes);

  InternetStackHelper stack;
  stack.Install (nodes);

  Ipv4AddressHelper address;
  address.SetBase ("10.1.1.0", "255.255.255.0");

  Ipv4InterfaceContainer interfaces = address.Assign (devices);

  UdpEchoServerHelper echoServer (9);

  ApplicationContainer serverApps = echoServer.Install (nodes.Get (1));
  serverApps.Start (Seconds (1.0));
  serverApps.Stop (Seconds (10.0));

  UdpEchoClientHelper echoClient (interfaces.GetAddress (1), 9);
  echoClient.SetAttribute ("MaxPackets", UintegerValue (1));
  echoClient.SetAttribute ("Interval", TimeValue (Seconds (1.0)));
  echoClient.SetAttribute ("PacketSize", UintegerValue (1024));

  ApplicationContainer clientApps = echoClient.Install (nodes.Get (0));
  clientApps.Start (Seconds (2.0));
  clientApps.Stop (Seconds (10.0));

  Simulator::Run ();
  Simulator::Destroy ();
  return 0;
}

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);

  // Connecting nodes using two links
  PointToPointHelper p2p;
  p2p.Install(nodes.Get(0), nodes.Get(1));
  p2p.Install(nodes.Get(1), nodes.Get(2));

  // Install NDN stack on all nodes
  StackHelper ndnHelper;
  ndnHelper.SetDefaultRoutes(true);
  ndnHelper.InstallAll();

  // Installing applications

  // Consumer
  auto consumer = CreateObject<ApiApp<PingClient>>();
  nodes.Get(0)->AddApplication(consumer);
  // consumer->SetStopTime(Seconds(15.0));

  auto producer = CreateObject<ApiApp<PingServer>>();
  nodes.Get(2)->AddApplication(producer);
  // producer->SetStartTime(Seconds(0.5));

  Simulator::Stop(Seconds(20.0));

  Simulator::Run();
  Simulator::Destroy();

  return 0;
}

void
MobilityTraceTestCase::DoRun (void)
{
  //***************************************************************************
  // Create the new mobility trace.
  //***************************************************************************

  NodeContainer sta;
  sta.Create (4);
  MobilityHelper mobility;
  mobility.SetPositionAllocator ("ns3::GridPositionAllocator",
                                 "MinX", DoubleValue (1.0),
                                 "MinY", DoubleValue (1.0),
                                 "DeltaX", DoubleValue (5.0),
                                 "DeltaY", DoubleValue (5.0),
                                 "GridWidth", UintegerValue (3),
                                 "LayoutType", StringValue ("RowFirst"));
  mobility.SetMobilityModel ("ns3::RandomWalk2dMobilityModel",
                             "Mode", StringValue ("Time"),
                             "Time", StringValue ("2s"),
                             "Speed", StringValue ("ns3::ConstantRandomVariable[Constant=1.0]"),
                             "Bounds", RectangleValue (Rectangle (0.0, 20.0, 0.0, 20.0)));
  mobility.Install (sta);
  // Set mobility random number streams to fixed values
  mobility.AssignStreams (sta, 0);

  SetDataDir (NS_TEST_SOURCEDIR);
  std::string referenceMobilityFilePath = CreateDataDirFilename ("mobility-trace-example.mob");
  std::string testMobilityFilePath      = CreateTempDirFilename ("mobility-trace-test.mob");

  AsciiTraceHelper ascii;
  MobilityHelper::EnableAsciiAll (ascii.CreateFileStream (testMobilityFilePath));
  Simulator::Stop (Seconds (5.0));
  Simulator::Run ();
  Simulator::Destroy ();


  //***************************************************************************
  // Test the new mobility trace against the reference mobility trace.
  //***************************************************************************

  NS_ASCII_TEST_EXPECT_EQ (testMobilityFilePath, referenceMobilityFilePath);
}

void
AodvExample::CreateNodes ()
{
  std::cout << "Creating " << (unsigned)size << " nodes " << step << " m apart.\n";
  nodes.Create (size);
  // Name nodes
  for (uint32_t i = 0; i < size; ++i)
    {
      std::ostringstream os;
      os << "node-" << i;
      Names::Add (os.str (), nodes.Get (i));
    }
  // Create static grid
  MobilityHelper mobility;
  mobility.SetPositionAllocator ("ns3::GridPositionAllocator",
                                 "MinX", DoubleValue (0.0),
                                 "MinY", DoubleValue (0.0),
                                 "DeltaX", DoubleValue (step),
                                 "DeltaY", DoubleValue (0),
                                 "GridWidth", UintegerValue (size),
                                 "LayoutType", StringValue ("RowFirst"));
  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
  mobility.Install (nodes);
}