Let’s start this article with the keynotes about the Tcl file based on network simulator 2 along with the source code.

Ns2 File with Source Code

To begin with, we have to create the Ns2 simulation main file in the project location along with the file extension of .tcl and we have to add the source code in the tcl based main file.

• Code to create trace file objects

set ns [new Simulator]

set tracefile [open droptail_main.tr w]

$ns trace-all $tracefile

set namfile [open droptail_main.nam w]

$ns namtrace-all $namfile

• Code to create object for UDP agents

set udp [new Agent/UDP]

set null [new Agent/Null]

$ns attach-agent $n0 $udp

$ns attach-agent $n3 $null

$ns connect $udp $null

Run Ns2 Tcl File

Subsequently, we have to change the location of tcl file through the execution of below mentioned command to run the Ns2 tcl file.

cd /home/research/tcl_simulation