Analysis of OPNET simulation technology and its application

Network simulation technology is one of the efficient analysis tools to study the network project and design. Simulationsoftware provides the method for real network to interact with a simulation, it can determine whether design are feasible and robust bynetwork simulation under varied conditions. The form and characteristic of OPNET are introduced, the process of network simulationis discussed, and the application of OPNET in network design with the actual example by describing the change of delay and load is em-phatically analyzed.