How to set metric

[Bruno Scrivo]

Hello guys, I neet to assign the metric to the links. I use LSR as protocol routing and this is my code

#include <iostream>

#include <fstream>

#include <string>

#include <cassert>

#include "ns3/core-module.h"

#include "ns3/network-module.h"

#include "ns3/csma-module.h"

#include "ns3/internet-module.h"

#include "ns3/point-to-point-module.h"

#include "ns3/applications-module.h"

#include "ns3/ipv4-global-routing-helper.h"

#include "ns3/packet-sink.h"

#include "ns3/olsr-routing-protocol.h"

#include "ns3/olsr-helper.h"

using namespace ns3;

NS_LOG_COMPONENT_DEFINE ("DynamicGlobalRoutingExample");

int main (int argc, char *argv[])

{

  // The below value configures the default behavior of global routing.

  // By default, it is disabled.  To respond to interface events, set to true

  Config::SetDefault ("ns3::Ipv4GlobalRouting::RespondToInterfaceEvents", BooleanValue (true));

  /*

  LogComponentEnable ("UdpTraceClient", LOG_LEVEL_INFO);

  LogComponentEnable ("UdpServer", LOG_LEVEL_INFO);

   LogComponentEnable ("PacketSink", LOG_LEVEL_INFO);

   LogComponentEnable("PacketSocketClient", LOG_LEVEL_INFO);

   LogComponentEnable("RttEstimator", LOG_LEVEL_INFO);

   LogComponentEnable("DataRate", LOG_LEVEL_INFO);

   LogComponentEnable("InternetStackHelper", LOG_LEVEL_INFO);

   LogComponentEnable("GlobalRoutingHelper", LOG_LEVEL_INFO);

   LogComponentEnable("Ipv4ListRouting", LOG_LEVEL_INFO);

   */

  // Allow the user to override any of the defaults and the above

  // Bind ()s at run-time, via command-line arguments

  CommandLine cmd;

  cmd.Parse (argc, argv);

  NS_LOG_INFO ("Create nodes.");

  NodeContainer c;

  c.Create (15);

  

  /* Nodi sorgente/destinazione */

  /* Nodo sorgente H1 Nodo destinazione H2 */

  NodeContainer n0n11 =  NodeContainer (c.Get (0), c.Get (11)); //R1 - N1 

  NodeContainer n10n14 =  NodeContainer (c.Get (10), c.Get (14)); //R11 - N2

  

  NodeContainer n6n12 =  NodeContainer (c.Get (6), c.Get (12)); //R7 - N3 Client

  NodeContainer n2n13 =  NodeContainer (c.Get (2), c.Get (13)); //R3 - N4 Server

  

  Address serverAddress;

  /* Routers */

  NodeContainer n0n3 = NodeContainer (c.Get (0), c.Get (3));

  NodeContainer n0n7 = NodeContainer (c.Get (0), c.Get (7));

  NodeContainer n1n3 = NodeContainer (c.Get (1), c.Get (3));

  NodeContainer n1n6 = NodeContainer (c.Get (1), c.Get (6));

  NodeContainer n1n9 = NodeContainer (c.Get (1), c.Get (9));

  NodeContainer n1n2 = NodeContainer (c.Get (1), c.Get (2));

  NodeContainer n6n2 = NodeContainer (c.Get (6), c.Get (2));

  NodeContainer n5n3 = NodeContainer (c.Get (5), c.Get (3));

  NodeContainer n9n2 = NodeContainer (c.Get (9), c.Get (2));  

  NodeContainer n9n5 = NodeContainer (c.Get (9), c.Get (5));

  NodeContainer n5n8 = NodeContainer (c.Get (5), c.Get (8));

  NodeContainer n9n4 = NodeContainer (c.Get (9), c.Get (4));

  NodeContainer n2n7 = NodeContainer (c.Get (2), c.Get (7));

  NodeContainer n7n4 = NodeContainer (c.Get (7), c.Get (4));  

  NodeContainer n7n10 = NodeContainer (c.Get (7), c.Get (10));

  NodeContainer n8n10 = NodeContainer (c.Get (8), c.Get (10));

  

  NS_LOG_INFO ("Enabling OLSR Routing.");

OlsrHelper olsr;

Ipv4StaticRoutingHelper staticRouting;

Ipv4ListRoutingHelper list;

list.Add (staticRouting, 0);

list.Add (olsr, 10);

InternetStackHelper internet;

internet.SetRoutingHelper (list);

internet.Install (c);

  // We create the channels first without any IP addressing information

  NS_LOG_INFO ("Create channels.");

  PointToPointHelper p2p;

  p2p.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));

  p2p.SetChannelAttribute ("Delay", StringValue ("2ms"));

  /* Link sui Router Point to Point */

  NetDeviceContainer d0d3 = p2p.Install(n0n3);

  NetDeviceContainer d0d7 = p2p.Install(n0n7);

  NetDeviceContainer d1d3 = p2p.Install(n1n3);

  NetDeviceContainer d1d6 = p2p.Install(n1n6);

  NetDeviceContainer d1d9 = p2p.Install(n1n9);

  NetDeviceContainer d1d2 = p2p.Install(n1n2);

  NetDeviceContainer d6d2 = p2p.Install(n6n2);

  NetDeviceContainer d5d3 = p2p.Install(n5n3);

  NetDeviceContainer d9d2 = p2p.Install(n9n2);  

  NetDeviceContainer d9d5 = p2p.Install(n9n5);

  NetDeviceContainer d5d8 = p2p.Install(n5n8);

  NetDeviceContainer d9d4 = p2p.Install(n9n4);

  NetDeviceContainer d2d7 = p2p.Install(n2n7);

  NetDeviceContainer d7d4 = p2p.Install(n7n4); 

  NetDeviceContainer d7d10 = p2p.Install(n7n10);

  NetDeviceContainer d8d10 = p2p.Install(n8n10);

  /* Link sugli Host*/

  NetDeviceContainer d0d11 = p2p.Install(n0n11); // Client

  NetDeviceContainer d10d14 = p2p.Install(n10n14); //Server

  

    /* Link sugli Host*/

  NetDeviceContainer d6d12 = p2p.Install(n6n12); // Client

  NetDeviceContainer d2d13 = p2p.Install(n2n13); //Server

  // Later, we add IP addresses.

  NS_LOG_INFO ("Assign IP Addresses.");

  Ipv4AddressHelper ipv4;

  

  

  ipv4.SetBase ("10.1.1.0", "255.255.255.252");

   

  Ipv4InterfaceContainer i0i3 = ipv4.Assign (d0d3);

  i0i3.SetMetric (0, 3);

  i0i3.SetMetric (1, 3);

  

  ipv4.SetBase ("10.1.1.4", "255.255.255.252");

  Ipv4InterfaceContainer i0i7 = ipv4.Assign (d0d7);

  i0i7.SetMetric (0, 3);

  i0i7.SetMetric (1, 3);

  ipv4.SetBase ("10.1.1.8", "255.255.255.252");

  Ipv4InterfaceContainer i1i3 = ipv4.Assign (d1d3);

  i1i3.SetMetric(0,1);

  i1i3.SetMetric (1, 3);

  

  ipv4.SetBase ("10.1.1.12", "255.255.255.252");

  Ipv4InterfaceContainer i1i6 = ipv4.Assign (d1d6);

  i1i6.SetMetric (0, 3);

  i1i6.SetMetric (1, 3);

Ipv4Interface qs = Ipv4Interface ();

qs.SetDevice(d1d6.Get(0));

qs.SetMetric(3);

  

  ipv4.SetBase ("10.1.1.16", "255.255.255.252");

  Ipv4InterfaceContainer i1i9 = ipv4.Assign (d1d9);

  i1i9.SetMetric (0, 3);

  i1i9.SetMetric (1, 3);

  

  

  ipv4.SetBase ("10.1.1.20", "255.255.255.252");

  Ipv4InterfaceContainer i1i2 = ipv4.Assign (d1d2);

  i1i2.SetMetric (0, 3);

  i1i2.SetMetric (1, 3);

  

  

  ipv4.SetBase ("10.1.1.24", "255.255.255.252");

  Ipv4InterfaceContainer i6i2 = ipv4.Assign (d6d2);

  i6i2.SetMetric (0, 3);

  i6i2.SetMetric (1, 3);

  

  

  ipv4.SetBase ("10.1.1.28", "255.255.255.252");

  Ipv4InterfaceContainer i5i3 = ipv4.Assign (d5d3);

  i5i3.SetMetric (0, 3);

  i5i3.SetMetric (1, 3);

  

  

  ipv4.SetBase ("10.1.1.32", "255.255.255.252");

  Ipv4InterfaceContainer i9i2 = ipv4.Assign (d9d2);

  i9i2.SetMetric (0, 3);

  i9i2.SetMetric (1, 3);

  

  

  ipv4.SetBase ("10.1.1.36", "255.255.255.252");

  Ipv4InterfaceContainer i9i5 = ipv4.Assign (d9d5);

  i9i5.SetMetric (0, 3);

  i9i5.SetMetric (1, 3);

  

  

  ipv4.SetBase ("10.1.1.40", "255.255.255.252");

  Ipv4InterfaceContainer i5i8 = ipv4.Assign (d5d8);

  i5i8.SetMetric (0, 3);

  i5i8.SetMetric (1, 3);

  

  

  

  ipv4.SetBase ("10.1.1.44", "255.255.255.252");

  Ipv4InterfaceContainer i9i4 = ipv4.Assign (d9d4);

  i9i4.SetMetric (0, 3);

  i9i4.SetMetric (1, 3);

  

  

  ipv4.SetBase ("10.1.1.48", "255.255.255.252");

  Ipv4InterfaceContainer i2i7 = ipv4.Assign (d2d7);

  i2i7.SetMetric (0, 3);

  i2i7.SetMetric (1, 3);

  

  

  ipv4.SetBase ("10.1.1.56", "255.255.255.252");

  Ipv4InterfaceContainer i7i4 = ipv4.Assign (d7d4);

  i7i4.SetMetric (0, 3);

  i7i4.SetMetric (1, 3);

  

  

  ipv4.SetBase ("10.1.1.60", "255.255.255.252");

  Ipv4InterfaceContainer i7i10 = ipv4.Assign (d7d10);

  i7i10.SetMetric (0, 3);

  i7i10.SetMetric (1, 3);

  

  

  

  ipv4.SetBase ("10.1.1.64", "255.255.255.252");

  Ipv4InterfaceContainer i8i10 = ipv4.Assign (d8d10);

  i8i10.SetMetric (0, 3);

  i8i10.SetMetric (1, 3);

  

  /* Assegno l'indirizzo al collegamento client */

  ipv4.SetBase ("10.1.2.0", "255.255.255.128");

  ipv4.Assign  (d0d11);

  /* Assegno l'indirizzo al collegamento server */

  ipv4.SetBase ("10.1.3.0", "255.255.255.0");

  Ipv4InterfaceContainer i = ipv4.Assign (d10d14);

  serverAddress = Address (i.GetAddress (1));

  /* Assegno l'indirizzo al collegamento client */

  ipv4.SetBase ("10.1.4.0", "255.255.255.128");

  ipv4.Assign  (d6d12);

  /* Assegno l'indirizzo al collegamento server */

  ipv4.SetBase ("10.1.5.0", "255.255.255.0");

  Ipv4InterfaceContainer i1 = ipv4.Assign (d2d13);

  // Create router nodes, initialize routing database and set up the routing

  // tables in the nodes.

  // Ipv4GlobalRoutingHelper::PopulateRoutingTables ();

NS_LOG_INFO ("Create Applications.");

//

// Create one udpServer applications on node one.

//

/* Server UDP */

  uint16_t port = 4000;

  uint32_t MaxPacketSize = 1472;  // Back off 20 (IP) + 8 (UDP) bytes from MTU

  UdpServerHelper server (port);

  ApplicationContainer apps = server.Install (c.Get (14));

  apps.Start (Seconds (502.0));

  apps.Stop (Seconds (1000.0));

  

/* Client UDP */

  UdpTraceClientHelper client (serverAddress, port,"");

  client.SetAttribute ("MaxPacketSize", UintegerValue (MaxPacketSize));

  apps = client.Install (c.Get (11));

  apps.Start (Seconds (502.0));

  apps.Stop (Seconds (1000.0));

 

  

  /* Client TCP */

 // serverAddress1 = Address ();

    uint16_t port1 = 9;  // well-known echo port number

    BulkSendHelper source ("ns3::TcpSocketFactory",

                         InetSocketAddress (i1.GetAddress (1), port1));

  source.SetAttribute ("MaxBytes", UintegerValue (MaxPacketSize));

  ApplicationContainer sourceApps = source.Install (c.Get (12));

  sourceApps.Start (Seconds (502.0));

  sourceApps.Stop (Seconds (1000.0));

    

  /* Server TCP */

  PacketSinkHelper sink ("ns3::TcpSocketFactory",

                         InetSocketAddress (Ipv4Address::GetAny (), port1));

  ApplicationContainer sinkApps = sink.Install (c.Get (13));

  sinkApps.Start (Seconds (502.0));

  sinkApps.Stop (Seconds (10000.0));

  // Trace routing tables 

  

  Ptr<OutputStreamWrapper> routingStream = Create<OutputStreamWrapper> ("dynamic-global-routing.routes", std::ios::out);

  staticRouting.PrintRoutingTableAllEvery(Seconds (1), routingStream);

  

//

// Now, do the actual simulation.

//

  NS_LOG_INFO ("Run Simulation.");

  Simulator::Run ();

  Simulator::Destroy ();

  NS_LOG_INFO ("Done.");

}

Also, this is "dynamic-global-routing.routes" file generated by ns3.

Node: 0 Time: 1s Ipv4ListRouting table

  Priority: 10 Protocol: ns3::olsr::RoutingProtocol

Destination NextHop Interface Distance

 HNA Routing Table:

  Priority: 0 Protocol: ns3::Ipv4StaticRouting

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface

127.0.0.0       0.0.0.0         255.0.0.0       U     0      -      -   0

10.1.1.0        0.0.0.0         255.255.255.252 U     0      -      -   1

10.1.1.4        0.0.0.0         255.255.255.252 U     0      -      -   2

10.1.2.0        0.0.0.0         255.255.255.128 U     0      -      -   3

Node: 1 Time: 1s Ipv4ListRouting table

  Priority: 10 Protocol: ns3::olsr::RoutingProtocol

Destination NextHop Interface Distance

 HNA Routing Table:

  Priority: 0 Protocol: ns3::Ipv4StaticRouting

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface

127.0.0.0       0.0.0.0         255.0.0.0       U     0      -      -   0

10.1.1.8        0.0.0.0         255.255.255.252 U     0      -      -   1

10.1.1.12       0.0.0.0         255.255.255.252 U     0      -      -   2

10.1.1.16       0.0.0.0         255.255.255.252 U     0      -      -   3

10.1.1.20       0.0.0.0         255.255.255.252 U     0      -      -   4

All metrics values ​​are 0. I need to change this value...how i do?

My network: http://i57.tinypic.com/b3sade.jpg

Thank you so much :)

[Konstantinos]

Hi,

Current implementation of OLSR in NS-3 considers only hop-count as metric.

[Bruno Scrivo]

Hi
Thank you very much for reply.