How to Start Tutorials Point Routing Projects Using OMNeT++

To start a routing project using OMNeT++, we follow these detailed tutorial methods like those on Tutorials Point which need to know the basics, set up the environment, and execute or replicate the routing protocols. Below is a structured approach to get started:

Steps to Start Tutorials Point Routing Projects in OMNeT++

  1. Understand the Basics

We know the following fundamentals before executing the project:

  • OMNeT++ Basics: We get more knowledge about OMNeT++, their IDE, and simulation aspects.
  • Routing Protocols: Study routing protocols fundamentals like Distance Vector Routing, Link-State Routing, or custom algorithms such as least-cost routing.

Key Resources:

  • We refer to OMNeT++ User Guide: OMNeT++ Documentation
  • Tutorials Point networking section: Tutorials Point Networking
  1. Install and Set Up OMNeT++
  1. Install OMNeT++:
    • We should download and install the OMNeT++ environment on the system.
    • Adhere to provided installation guidance based on OS.
  2. Install INET Framework:
    • We can install the INET framework which supports OMNeT++ version.
    • Construct the framework:

make makefiles

make

  1. Choose a Routing Protocol

Choose a routing protocol to replicate. For example:

  • Static Routing: Fixed paths for packet transmitting in static routing.
  • Dynamic Routing: Routes are dynamically determined using Bellman-Ford, Dijkstra, or custom algorithms.
  1. Create a New OMNeT++ Project
  1. Open OMNeT++ IDE:
    • Choose File > New > OMNeT++ Project.
    • Name it to the project as TutorialsPointRouting and select Finish.
  2. Add INET Framework:
    • Right-click on the project by navigating Project → Properties > Project References.
    • Confirm the INET framework.
  1. Set Up Network Topology

Create a network topology using a .ned file:

  1. Create a .ned File:
    • Right-click on the src folder → New > File → Name it as TutorialNetwork.ned.
  2. Define the Network Topology:

network TutorialNetwork

{

submodules:

node[5]: StandardHost {

parameters:

@display(“i=device/router”);

routingProtocol = “StaticRouting”;

}

connections:

node[0].pppg++ <–> { delay = 10ms; datarate = 10Mbps; } <–> node[1].pppg++;

node[1].pppg++ <–> { delay = 5ms; datarate = 1Mbps; } <–> node[2].pppg++;

node[2].pppg++ <–> { delay = 15ms; datarate = 5Mbps; } <–> node[3].pppg++;

node[3].pppg++ <–> { delay = 20ms; datarate = 2Mbps; } <–> node[4].pppg++;

}

  1. Implement the Routing Protocol
  1. Use an Existing Protocol:
    • INET protocols offer built-in protocols like OSPF, RIP, and static routing.
  2. Custom Implementation:
    • Make a new routing module like TutorialRouting.cc and integrate it to the project.
  3. Example: Static Routing Logic:

class StaticRouting : public cSimpleModule {

protected:

virtual void initialize() override {

EV << “Initializing static routing…\n”;

// Define static routes manually

}

virtual void handleMessage(cMessage *msg) override {

// Forward packet based on static routes

EV << “Forwarding packet…\n”;

send(msg, “out”);

}

};

  1. Configure the Simulation
  1. Edit omnetpp.ini:
    • Set the simulation metrics using .ini files.
    • Instance:

[Config RoutingSimulation]

network = TutorialNetwork

**.node[*].numApps = 1

**.node[*].app[0].typename = “UdpApp”

**.node[*].app[0].destAddresses = “node[4]”

**.node[*].app[0].messageLength = 512B

simulation.timeLimit = 100s

  1. Run the Simulation
  1. Start the Simulation:
    • Execute the simulation to utilise Tkenv (GUI) or Cmdenv (command-line).
  2. Observe Results:
    • Monitor the packet flows, routing table updates, and records.
  1. Analyze and Visualize Results
  1. Performance Metrics:
    • We will need to estimate the performance indicators like delay, throughput, and packet loss.
    • Examine the routing table updates and behavior of packet forwarding.
  2. Export Data:
    • Transfer simulation outcomes into external OMNeT++ tools such as MATLAB, Excel, or Python for in-depth analysis.
  1. Extend and Optimize
  1. Dynamic Routing:
    • Integrate algorithms such as Dijkstra or Bellman-Ford for dynamic route calculation.
  2. Scalability:
    • We need to replicate the larger networks including diverse traffic patterns.
  3. Fault Tolerance:
    • Launch link/node failures and then examine the retrieval mechanisms for tolerance.

An outlined structure has been provided for executing, simulating and analysis the Tutorial Point Routing Projects with the support of OMNeT++ environment. According to your requirements, we will offer innovative and comprehensive approach on this topic.Get in touch with us for more of your project help . We will get back to you immediately for more simulation help.