Implementation of a wired network topology using NS2.

For this project I decided to use Linux so I could install NS2 easily and run all the files for the simulation locally.

To run the TCL file from the command line:

$ ns Sneddon_Jason.tcl. 

This would open the nam simulation to provide a visual of the network, and then it would generate a trace file called:

Sneddon_Jason.tr. 

To execute all the AWK files:

$ awk -f < file_name >.awk Sneddon_Jason.tr

For all the AWK files, I wrote the data to the associated files and output a report of the data to the terminal to make it more interactive.

• TCL File - For the TCL file, I decided to create all nodes individually, instead of using a for loop because I wanted to distinguish between the servers, routers, and destinations.

• Servers - I also implemented the connections for Server 7, Server 12, Server 13, and Server 14 individually because I found it easier to associate a unique flow id to the connections this way.

• Nodes - For all other nodes, I created 2 procedures, one that creates the red connections and one that creates the blue connections.

• Nam Simulation - Lastly, I found it very useful to execute a nam simulation from the TCL script because it provided a deeper understanding of how the data flows through the network.