IP城域网流量分析方法和实践

文章在对IP网络几种主要的流量测量和分析技术进行比较的基础上,以上海电信IP城域网为对象,通过流交换(netflowswitchin)g方法收集流量信息,进而利用工具分析了流量流向、流量应用分布等现网流量的特点。对流交换数据量与网络流量之间的定量关系也做了实测估计。

Based on comparison of some available network traffic flow measurement and analysis technologies for IP network,the traffic characteristics of Shanghai Telecom IP MAN are analyzed. The netflow switching is used as a chief method for collecting traffic information. The flow-based traffic analysis system can provide detailed views of network behavior, such as traffic routing, protocol-port or application distribution. The quantitative relation between netflow exoort data and network traffic flow is also estimated.