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:
#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;
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;
}
Overall, we had a performance analysis on RIP (Routing Information Protocol) by simulating it and learned on implementing RIP protocol using ns3 features. Also, we offer more related coding on RIP (Routing Information Protocol).