OPNET网络仿真实验设计

Design of OPNET network simulation experiment

网络仿真实验是网络设计与规划、设备研制与开发的必要环节,同时也是计算机网络课程教学的重要组成部分,通过网络仿真实验可以让学生真切地看到网络的运行过程,透彻地理解协议的工作原理。OPNET是一个性能优越的网络仿真软件,在教学、科研和生产中广泛使用。以泛洪路由算法为例阐述OPNET仿真实验的基本原理和设计过程,包括网络模型、节点模型和进程模型的设计以及有限状态机中源程序的开发过程,通过实验结果分析证实泛洪路由仿真实验系统的功能正确性。该仿真系统既可用于课堂演示又可用于协议开发。

Network simulation experiment is necessary for network design and device development.It is still very important in teaching the course of Computer Networks.With a network simulation experiment,students could clearly watch the running procedure of a network and thoroughly understand the principles of protocols.OPNET is an outstanding network simulation kit with perfect performance.It is broadly being used in teaching,researching and manufacturing.With the flooding routing algorithm as an example,this paper addresses the basic principles of OPNET as well as how to design a network simulation experiment.The design and development procedures for network model,node model,process model,and the source code in the finite state machine,are depicted in detail.Also,the analysis to experiment results proves the functional correctness.The simulation experiment system could be used for illustrating in classroom and for developing protocols as well.