CS-470

Modeling and Simulation

Lab 4

OpNet Modeler

Date: April 2, 2002

Due: April 16, 2002

For this lab assignment, you’ll need to teach yourself enough about a very powerful simulation package named OpNet Modeler (available on the workstations in CC-35) in order to validate your M/M/1 model from the previous lab. OpNet is now the industry-leading package for graphically modeling discrete event systems. Its specialty is in modeling and simulating communication networks. Begin first by firing up OpNet Modeler and running a few of the tutorials available in the online help system. One of them addresses M/M/1 systems in particular. Then, once you’ve completed the tutorial(s) build an M/M/1 model in OpNet and test it with the same M/M/1 model you programmed for the previous lab. You should be able to validate your results in OpNet against the experimental values produced by your simulation program and verify that they match the expected results that come from Markov’s equations for steady state M/M/1 systems.

As an aid to doing this lab, Prof. Tran has written a step-by-step sequence of instructions that shows how to set up an M/M/1 system in OpNet and instrument it with probes to measure the output from the running model. A link to this document is also provided on the course web page.

As usual, a written report is required (one per team) that summarizes your results on this experiment.