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作为网络互联的核心设备 ,路由器必须以吉比特乃至更高的速度对 IP包进行处理 .网络应用的发展要求路由器除了具备传统的路由转发功能之外 ,还必须有能力支持防火墙、提供 Qo S、流量计费等一系列功能 .这些都要求路由器根据包头对 IP包进行分类 ,根据分类完成对数据包的不同处理 .本文全面地介绍了 IP分类技术研究的最新成果 ,总结了解决 IP分类问题的一般思想和并详细介绍了 IP分类的典型算法 .本文对其中三种算法在虚拟环境下做了评测 ,比较了它们的优缺点 ,最后指出了进一步的研究方向 .
As the core equipment of network interconnection, the router must deal with the IP packet with the speed of gigabit or even higher.Development of the network application requires that the router not only has the traditional routing and forwarding functions, but also must be able to support the firewall and provide QoS, Traffic accounting and a series of functions which all require the router to classify the IP packets according to the header and finish the different processing of the data packets according to the classification.This paper introduces the latest achievements of IP classification technology and summarizes the problems of IP classification General idea and detailed introduction of the typical IP classification algorithm.In this paper, three algorithms are evaluated in the virtual environment, their advantages and disadvantages are compared, and finally the further research directions are pointed out.