Internet城域出口链路流量测量与特征分析

通过对某城域出口链路上实测的流量数据从出/入境方向、字节/数据包等不同角度进行了逐层逐协议的分析,同时采用了多种Hurst指数估计方法考察了流量的自相似特征.发现相比先前的监测结果,流量特征在构成和趋势等方面都发生了显著的变化;并且,网络流量的自相似程度甚至自相似特征是否依然存在都变得不再确定.

Internet Traffic Measurement and Characteristic Analysis on Output Link of Metro Area Network

The nature of the increasing network traffic has taken much more changes.In order to find out how these changes impact on the traffic character,we make a comprehensive analysis by using the traffic data collected with NetTurbo on an ISP WAN link.The result shows that compared to the previous analysis there are so many un-neglectable differences in the traffic characterization.More significantly,we found that despite its wide use,there is still much confusion regarding the identification of self similarity in recent teal network traffic data and whether the self similarity still exists is uncertain,which is much more difference from the previous result.