author | Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
Wed, 10 Dec 2008 01:34:04 -0800 | |
changeset 4002 | a12900ea255e |
parent 3793 | a5895f134543 |
child 4218 | debf1a8a96d3 |
permissions | -rw-r--r-- |
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
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/* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation; |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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*/ |
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|
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#include "ns3/core-module.h" |
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#include "ns3/simulator-module.h" |
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#include "ns3/node-module.h" |
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#include "ns3/helper-module.h" |
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#include "ns3/global-route-manager.h" |
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|
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// Network topology (default) |
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// |
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// n2 n3 n4 . |
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// \ | / . |
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// \|/ . |
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// n1--- n0---n5 . |
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// /|\ . |
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// / | \ . |
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// n8 n7 n6 . |
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// |
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|
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|
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using namespace ns3; |
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|
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NS_LOG_COMPONENT_DEFINE ("Star"); |
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|
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int |
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main (int argc, char *argv[]) |
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{ |
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// |
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// Make the random number generators generate reproducible results. |
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// |
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RandomVariable::UseGlobalSeed (1, 1, 2, 3, 5, 8); |
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|
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// |
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// Set up some default values for the simulation. |
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// |
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Config::SetDefault ("ns3::OnOffApplication::PacketSize", UintegerValue (137)); |
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|
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// ??? try and stick 15kb/s into the data rate |
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Config::SetDefault ("ns3::OnOffApplication::DataRate", StringValue ("14kb/s")); |
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|
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// |
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// Default number of nodes in the star. Overridable by command line argument. |
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// |
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uint32_t nNodes = 9; |
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CommandLine cmd; |
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cmd.AddValue("nNodes", "Number of nodes to place in the star", nNodes); |
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cmd.Parse (argc, argv); |
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NS_LOG_INFO ("Create nodes."); |
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NodeContainer hubNode; |
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NodeContainer spokeNodes; |
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hubNode.Create (1); |
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Ptr<Node> hub = hubNode.Get (0); |
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spokeNodes.Create (nNodes - 1); |
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NS_LOG_INFO ("Install internet stack on all nodes."); |
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InternetStackHelper internet; |
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internet.Install (NodeContainer (hubNode, spokeNodes)); |
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PointToPointHelper pointToPoint; |
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pointToPoint.SetDeviceAttribute ("DataRate", StringValue ("5Mbps")); |
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pointToPoint.SetChannelAttribute ("Delay", StringValue ("2ms")); |
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NS_LOG_INFO ("Build star topology."); |
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NetDeviceContainer hubDevices, spokeDevices; |
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pointToPoint.InstallStar (hubNode.Get (0), spokeNodes, hubDevices, spokeDevices); |
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NS_LOG_INFO ("Assign IP Addresses."); |
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Ipv4AddressHelper address; |
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// |
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// Assign IPv4 interfaces and IP addresses to the devices we previously |
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// created. Keep track of the resulting addresses, one for the addresses |
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// of the hub node, and one for addresses on the spoke nodes. Despite the |
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// name of the class, what is visible to clients is really the address. |
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// |
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Ipv4InterfaceContainer hubAddresses; |
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Ipv4InterfaceContainer spokeAddresses; |
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for(uint32_t i = 0; i < spokeNodes.GetN (); ++i) |
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{ |
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std::ostringstream subnet; |
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subnet << "10.1.1." << (i << 2); |
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NS_LOG_INFO ("Assign IP Addresses for point-to-point subnet " << subnet.str ()); |
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address.SetBase (subnet.str ().c_str (), "255.255.255.252"); |
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hubAddresses.Add (address.Assign (hubDevices.Get (i))); |
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spokeAddresses.Add (address.Assign (spokeDevices.Get (i))); |
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} |
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|
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NS_LOG_INFO ("Create applications."); |
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// |
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// Create a packet sink on the star "hub" to receive packets. |
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// |
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uint16_t port = 50000; |
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Address hubLocalAddress (InetSocketAddress (Ipv4Address::GetAny (), port)); |
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PacketSinkHelper packetSinkHelper ("ns3::TcpSocketFactory", hubLocalAddress); |
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ApplicationContainer hubApp = packetSinkHelper.Install (hubNode); |
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hubApp.Start (Seconds (1.0)); |
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hubApp.Stop (Seconds (10.0)); |
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|
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// |
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// Create OnOff applications to send TCP to the hub, one on each spoke node. |
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// |
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OnOffHelper onOffHelper ("ns3::TcpSocketFactory", Address ()); |
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onOffHelper.SetAttribute ("OnTime", RandomVariableValue (ConstantVariable (1))); |
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onOffHelper.SetAttribute ("OffTime", RandomVariableValue (ConstantVariable (0))); |
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ApplicationContainer spokeApps; |
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|
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for (uint32_t i = 0; i < spokeNodes.GetN (); ++i) |
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{ |
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AddressValue remoteAddress (InetSocketAddress (hubAddresses.GetAddress (i), port)); |
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onOffHelper.SetAttribute ("Remote", remoteAddress); |
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spokeApps.Add (onOffHelper.Install (spokeNodes.Get (i))); |
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} |
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spokeApps.Start (Seconds (1.0)); |
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spokeApps.Stop (Seconds (10.0)); |
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|
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NS_LOG_INFO ("Enable static global routing."); |
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// |
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// Turn on global static routing so we can actually be routed across the star. |
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// |
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GlobalRouteManager::PopulateRoutingTables (); |
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|
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NS_LOG_INFO ("Enable pcap tracing."); |
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// |
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// Do pcap tracing on all devices on all nodes. |
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// |
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PointToPointHelper::EnablePcapAll ("star"); |
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|
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NS_LOG_INFO ("Run Simulation."); |
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Simulator::Run (); |
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Simulator::Destroy (); |
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NS_LOG_INFO ("Done."); |
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151 |
|
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return 0; |
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} |