大规模高速网络流量测量研究

随着互联网的发展,理解网络行为对于网络管理、规划和发展都有重要意义,网络流量测量是研究网络行为的基础。根据网络测量流量的不同,测量方法分为主动测量和被动测量,每种测量方法有其应用背景和优缺点。为了从不同角度研究网络行为需要定义不同的测度,IETF的IPPM工作组现已经定义了一整套用于流量行为测量的测度。根据测量的环境和应用背景的区别,国外不同的研究机构建立了不同的测量体系结构和测量工具。同时,由于网络带宽越来越大,全流量测量和分析研究越来越困难,为了解决这一问题,近几年,流量抽样测量研究现已成为高速网络流量测量的研究重点。

A Research on Traffic Measurement in a Large-scale High-speed Network

It is very important to understand network behavior while the development of networks due to network management ,network planning and network development.And the measurement of network traffic is the base of the study of network behavior.According to the difference of measured traffic,measurement method is consisted of passive measurement and active measurement that have their advantage and disadvantage.It must define a number of metrics to study the different network traffic behavior.The IPPM of IETF has defined a number of metrics to study traffic behavior.Due to the difference of measured environment and application,many organizations have built various measure architectures and measure tools.In addition,it is more difficult to measure and analysis full traffic trace while the bandwidth is increasing larger,so the traffic sampling measure becomes the focus of the study of high-speed network traffic measurement in recent years.