Add a traffic control example

Signed-off-by: Stefano Avallone <[email protected]>

examples/traffic-control/traffic-control.cc

@@ -0,0 +1,117 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2015 Universita' degli Studi di Napoli "Federico II"
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Pasquale Imputato <[email protected]>
+ * Author: Stefano Avallone <[email protected]>
+ */
+
+#include "ns3/core-module.h"
+#include "ns3/network-module.h"
+#include "ns3/internet-module.h"
+#include "ns3/point-to-point-module.h"
+#include "ns3/applications-module.h"
+#include "ns3/traffic-control-module.h"
+
+// This simple example shows how to use TrafficContorlHelper to install a QueueDisc on a device.
+// The default QueueDisc is a pfifo_fast with max number of packets equal to 1000 (as in Linux)
+//
+// Network topology
+//
+//       10.1.1.0
+// n0 -------------- n1
+//    point-to-point
+
+using namespace ns3;
+
+NS_LOG_COMPONENT_DEFINE ("TrafficControlExample");
+
+void
+PacketsInQueueTrace (uint32_t oldValue, uint32_t newValue)
+{
+  std::cout << "PacketsInQueue " << oldValue << " to " << newValue << std::endl;
+}
+
+int
+main (int argc, char *argv[])
+{
+  double simulationTime = 10; //seconds
+
+  NodeContainer nodes;
+  nodes.Create (2);
+
+  PointToPointHelper pointToPoint;
+  pointToPoint.SetDeviceAttribute ("DataRate", StringValue ("10Mbps"));
+  pointToPoint.SetChannelAttribute ("Delay", StringValue ("2ms"));
+  pointToPoint.SetQueue ("ns3::DropTailQueue", "Mode", StringValue ("QUEUE_MODE_PACKETS"), "MaxPackets", UintegerValue (1000));
+
+  NetDeviceContainer devices;
+  devices = pointToPoint.Install (nodes);
+
+  InternetStackHelper stack;
+  stack.Install (nodes);
+
+  QueueDiscHelper qdh;
+  qdh.SetQueueDiscType ("ns3::PfifoFastQueueDisc");
+  qdh.SetAttribute ("Band0", PointerValue (CreateObjectWithAttributes<DropTailQueue> ("MaxPackets", UintegerValue (1000))));
+  qdh.SetAttribute ("Band1", PointerValue (CreateObjectWithAttributes<DropTailQueue> ("MaxPackets", UintegerValue (1000))));
+  qdh.SetAttribute ("Band2", PointerValue (CreateObjectWithAttributes<DropTailQueue> ("MaxPackets", UintegerValue (1000))));
+  QueueDiscContainer qdiscs = qdh.Install (devices);
+
+  Ptr<QueueDisc> q = qdiscs.Get (0);
+  q->TraceConnectWithoutContext ("PacketsInQueue", MakeCallback (&PacketsInQueueTrace));
+
+  Ipv4AddressHelper address;
+  address.SetBase ("10.1.1.0", "255.255.255.0");
+
+  Ipv4InterfaceContainer interfaces = address.Assign (devices);
+
+  //Flow
+  uint16_t port = 7;
+  Address localAddress (InetSocketAddress (Ipv4Address::GetAny (), port));
+  PacketSinkHelper packetSinkHelper ("ns3::TcpSocketFactory", localAddress);
+  ApplicationContainer sinkApp = packetSinkHelper.Install (nodes.Get (0));
+
+  sinkApp.Start (Seconds (0.0));
+  sinkApp.Stop (Seconds (simulationTime + 0.1));
+
+  uint32_t payloadSize = 1448;
+  Config::SetDefault ("ns3::TcpSocket::SegmentSize", UintegerValue (payloadSize));
+
+  OnOffHelper onoff ("ns3::TcpSocketFactory",Ipv4Address::GetAny ());
+  onoff.SetAttribute ("OnTime",  StringValue ("ns3::ConstantRandomVariable[Constant=1]"));
+  onoff.SetAttribute ("OffTime", StringValue ("ns3::ConstantRandomVariable[Constant=0]"));
+  onoff.SetAttribute ("PacketSize", UintegerValue (payloadSize));
+  onoff.SetAttribute ("DataRate", DataRateValue (1000000000)); //bit/s
+  ApplicationContainer apps;
+
+  AddressValue remoteAddress (InetSocketAddress (interfaces.GetAddress (0), port));
+  onoff.SetAttribute ("Remote", remoteAddress);
+  apps.Add (onoff.Install (nodes.Get (1)));
+  apps.Start (Seconds (1.0));
+  apps.Stop (Seconds (simulationTime + 0.1));
+
+  Simulator::Stop (Seconds (simulationTime + 0.1));
+  Simulator::Run ();
+  Simulator::Destroy ();
+
+  double thr = 0;
+  uint32_t totalPacketsThr = DynamicCast<PacketSink> (sinkApp.Get (0))->GetTotalRx ();
+  thr = totalPacketsThr * 8 / (simulationTime * 1000000.0); //Mbit/s
+  std::cout << thr << " Mbit/s" <<std::endl;
+
+  return 0;
+}

examples/traffic-control/wscript

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+## -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
+
+def build(bld):
+    obj = bld.create_ns3_program('traffic-control',
+                                 ['internet', 'point-to-point', 'applications', 'traffic-control'])
+    obj.source = 'traffic-control.cc'