基于NS-2的组播技术教学实验设计

摘要

In the view of the characteristics of experiment teaching in the course of computer communication networks,a performance analysis experiment for multicast technique is developed by means of the network simulation software NS-2.The network simulation model and the way to program the simulation script files are presented for the multicast performance analysis experiment.By comparison with unicast technique,parameters of throughput,delay and jitter are analyzed based on the simulation results.Through programming the simulation script files and analyzing the simulation results,the students can effectively understand the network communication protocols,and the students＇ innovation ability can be raised.%本文针对＂计算机通信网＂课程实验教学的特点,利用NS-2网络仿真软件设计了一个组播性能分析实验,给出了组播性能分析实验的网络仿真模型、网络仿真脚本文件的编写方法。该实验采用与单播技术对比的方式,从吞吐量、分组时延和时延抖动等方面分析了仿真结果。通过编写仿真程序和分析实验数据,帮助学生掌握网络通信协议,培养学生的创新能力。