Exercises on ”ns-2”

The code provided between the lines is not complete. You are asked to add your own code. Consider a simple network composed of only two nodes (S and D), and one link connecting them. The link connecting the two nodes has a speed of 1Mbps, a propagation delay of 100 ms, and a DropTail buffer at its input of very large size. $ns duplex-link $S $D 1Mb 100ms DropTail $ns queue-limit $S $D 10000 We run on node S a Poisson source of traffic. The destination of the packets being node D. Let λ be the intensity of the Poisson traffic in terms of packets/s. Take λ = 1200 packets/s and set the packet size of the Poisson source to a fixed value 100 bytes. Write the code of a simulation of this scenario, then run the simulation for 1000 seconds. The Poisson source can be created as follows: set udp [new Agent/UDP] $ns attach-agent $S $udp set null [new Agent/Null] $ns attach-agent $D $null $ns connect $udp $null set poisson [new Application/Traffic/Poisson] $poisson attach-agent $udp $ns at 0 ''$poisson start'' Don't forget the ns run !