Internet流分类方法的比较研究

Internet流分类是网络测量、流量监控中的一个重要环节.本文分析了几种典型的流分类方法：基于特定端口号、基于应用层特征字段和基于传输层的方法,其中第二种方法专门用于识别当前日益增多的对等网络应用流量.从准确性、完整性、实时性以及可扩展性等方面对这三种方法进行了比较,分别指出它们的优势和不足.最后提出了一种实用型流分类方案,并对流分类领域的发展提出了看法.

Comparison Research on the Methods of Internet Traffic Classification

Internet traffic classification has always been an important part of network measurement and control.We first analyzed some typical methods of traffic classification,which separately based on default port numbers,application signatures and transport layer characteristics.Then we showed the advantages and disadvantages of each method through the comparison of their veracity,integrality,the peculiarity of real-time and expansibility.Finally,we presented a practical traffic classification scheme and gave some suggestions for the development of this field.