Here, for simplicity, we have created a sample node. We can create any number of nodes require.Similarly, out.nam files are use by NAM to show the packet transmission.Here, trace-all procedure is used to store all the simulation result in result.dat file. Here, we have used “finish” as an assignment variable. First line Open result.dat will open the file and write it to W.Commands for opening the files is given as: To store the result, first we need to open the files.This command will create a simulator object and assign it to variable ns. Now, let’s see the commands to create simulator class object. Every simulation script in NS2 is based on simulator object which works as scheduler to schedule the events.Wired Simulation in NS2: To create simulator class object: For wireless simulation, refer our other articles in this site. Here, we are going to explain about how to work with wired simulation. Wired simulation and wireless simulation in NS-2. To work with NS-2, you must focus on two aspects of NS-2 i.e. GNS3 network simulation tool is available for Windows, Linux & Mac.

For other particular information about NS2, refer our other articles. GNS3 is one of the best network simulation tools to build, design, configure, and test your network scenarios in a completely risk-free virtual environment. Here, we have emphasize on how to create a simple script in NS2.

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