Practical 7:: Defualt Network Topology (Point-to-Point)

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#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”

//netAnimation

#include “ns3/netanim-module.

h” #include “ns3/mobility-module.h”

// Default Network Topology

//

// 10.1.1.0

// n0 n1

// point-to-point

//

using namespace ns3;

NS_LOG_COMPONENT_DEFINE (“FirstScriptExample”); int

main (int argc, char *argv[])

{

CommandLine cmd ( FILE );

cmd.Parse (argc, 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));MobilityHelper mobility;

mobility.SetMobilityModel(“ns3::ConstantPositionMobilityModel”);

mobility.Install(nodes);

AnimationInterface anim(“first.xml”);

AnimationInterface::SetConstantPosition (nodes.Get(0), 10, 25);

AnimationInterface::SetConstantPosition(nodes.Get(1), 40,25);

anim.EnablePacketMetadata(true);

pointToPoint.EnablePcapAll(“first”);

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

}

Output:

To Generate the Graph refer data.txt file

gplot.plt file to Generate Graph

set terminal png

set output “Lalit.png”

set title “Point to Point Toplogy end to end delay” set xlabel “nodes”

set ylabel “end to end delay”

plot “data.txt” using 1: 5 with linespoint title “TimeDelay” lw 4,”data.txt” using 1: 6 with linespoint title “DBR “ lw 2

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