'Microsoft Network Monitor 3', and 'Sim Wiz'

Microsoft Network Monitor 3

Network Protocol Analyzer is a tool to allow capturing and protocol analysis of network traffic.

http://www.microsoft.com/downloads

Sim Wiz

SimWiz defines, validates, communicates and runs simulation models. Its accompanying tutorial is sufficient to guide the novice in numerous representative applications of simulation, including traffic, call centers, factory floor, maintenance, inventory, hospital.

http://my.jce.ac.il/bani/