Network simulator

Question

Hi, I'm looking for a network simulator that will simulate a single point-tp-point link between two nodes.

I want to be able to: 1. define the sequence of elements from 'a' to 'b' (like: 'a'-encoder-wireless medium-decoder-'b'). 2. define the protocol 'a' is using

and from that get some sort of estimate on the packet loss rate of the defined system.

I know what I just gave was a very simplistic description, but I think you got my jist. Anyone knows of a tool that can help me with this?

Answer 1

ns-3 can do what you want, and so much more: http://www.nsnam.org/

In fact, as I write this, there's a simulation instance running in the background on my machine.

You can even hook up tun/tap devices and virtual machines running real operating systems.

Answer 2

GNS3 is very good for cisco related networking.