论文部分内容阅读
针对校园网出口链路拥塞压力不断增长,粗粒度的流控策略难以适应变化中的校园网流量环境的问题,分析了目前校园网出口高带宽占用比的几种网络协议的流量特征,从时间、区域、接入、链路多个维度对校园网的总体流量行为进行了深入的分析,根据分析结果提出了更细粒度的流量优化策略.结果显示:校园网入流量中HTTP流媒体(HTTP Streaming)流量占比最高且增长迅速,用户入带宽分布呈幂律分布特征,不同的区域、接入方式、ISP链路对网络应用协议的偏好度不同,更细粒度的流量优化策略可以有效缓解校园网出口拥塞,优化网络性能.
In view of the increasing congestion pressure on the egress link of campus network and the coarse-grained flow control strategy, it is difficult to adapt to the changing campus network traffic environment. This paper analyzes the traffic characteristics of several network protocols that occupy the high bandwidth of campus network at present, , Area, access and link, the paper analyzes the overall traffic behavior of campus network deeply and puts forward a more granular traffic optimization strategy based on the analysis results.The results show that: HTTP streaming media (HTTP Streaming traffic accounts for the highest proportion and rapid growth. The user-inband distribution is power-law distributed. Different regions, access methods, and ISP links have different preferences for the network application protocol. A finer granular traffic optimization strategy can effectively alleviate Campus network export congestion, optimize network performance.