In order to analyze the performances of IP switch,the paper brings ou t a model of adaptive flow classifier(AFC). At last,it introuduces an open,event-driven network simulation platform-NS and the way to realize the AFC in NS.

• 在此基础上,构造了一个用来分析IP交换性能的IP交换流分类器的系统模型,最后介绍了开放式、事件驱动的网络仿真平台NS(NetworkSimulator),并利用NS来实现文中提出的自适应流分类器AFC的结构。