Traffic Flow on Nodes in NS2 In this tutorial, we are going to create some nodes and then enable the flow of traffic on those nodes. There are two ways to flow the traffic i.e. through TCP and UDP. We will use both in this tutorial. #Create a simulator object set ns [new Simulator] #Define different colors for data flows (for NAM) $ns color 1 Blue $ns color 2 Red $ns color 3 Black #Open the NAM trace file set nf [open out.nam w] $ns namtrace-all $nf #Define a finish procedure proc finish {} { global ns nf $ns flush-trace #Close the NAM trace file close $nf #Execute NAM on the trace file exec nam out.nam & exit 0 } #Create four nodes set n0 [$ns node] set n1 [$ns node] set n2...