Steps to implement RIP protocol in ns3

We implement Routing Information Protocol (RIP) in ns3, where we need to incorporate several steps. ns3 is a discrete-event network simulator for internet systems and it permits user to simulate various network protocols. Let us dive into the implementation of the RIP protocol using ns3 features.

Steps for implementing RIP protocol

Set up your environment

Make sure that ns3 is installed in the computer. If not, install it from the official ns3 website.

Create a new ns3 script

On your ns3 installation, create a new simulation script in the scratch directory. For Example, you can create a file named rip-simulation.cc.

cd ns-3.xx

cd scratch

touch rip-simulation.cc

Include the necessary header files

In the rip-simulation.cc file, create the necessary header files for your simulation.

#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/rip-helper.h”

using namespace ns3;

Set the network topology

Here we Set the network topology by creating the basic topology that contains three nodes which are connected in a line.

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

{

CommandLine cmd;

cmd.Parse (argc, argv);

NodeContainer nodes;

nodes.Create (3);

PointToPointHelper pointToPoint;

pointToPoint.SetDeviceAttribute (“DataRate”, StringValue (“5Mbps”));

pointToPoint.SetChannelAttribute (“Delay”, StringValue (“2ms”));

NetDeviceContainer devices;

devices = pointToPoint.Install (nodes.Get (0), nodes.Get (1));

devices.Add (pointToPoint.Install (nodes.Get (1), nodes.Get (2)));

InternetStackHelper stack;

RipHelper ripRouting;

// Install the RIP routing protocol on all nodes

stack.SetRoutingHelper (ripRouting);

stack.Install (nodes);

Ipv4AddressHelper address;

address.SetBase (“10.1.1.0”, “255.255.255.0”);

Ipv4InterfaceContainer interfaces = address.Assign (devices.Get (0));

interfaces.Add (address.Assign (devices.Get (1)));

address.SetBase (“10.1.2.0”, “255.255.255.0”);

interfaces.Add (address.Assign (devices.Get (2)));

// Set up applications (e.g., a UDP echo server and client) if needed

Simulator::Run ();

Simulator::Destroy ();

return 0;

}

Configure the RIP protocol

The RIP protocol is installed and configured using the RipHelper class, in this example. On the nodes of the RIP routing protocol, configure the RiprHelper class.

Build and run the simulation

Build and run your script after writing.

./waf build

./waf –run scratch/rip-simulation

Analyze the results

You can analyze the results based on your needs after running the simulation. Also, you can add logging or tracing to observe the behavior of the RIP protocol.

Example script for RIP protocol

Below is the example script for your reference: