simulation using animation

i am trying to create a applet to simulate the TCP/IP

protocol suite. I want to have two computers on screen with messages going between them. One computer will send a message and the other will send an acknowledgement back, this will have a counter and if the acknowledgement is not received within a certain amount of time the message will be retransmitted. could you please give me some idea as to where to start with this. I'm assuming i use two animation loops and threads.

Many thanks

Deirdre McKenna

[532 byte] By [deirdre-mckenna] at [2007-9-27 16:15:17]