基于有损差分聚合的单向时延测量方法

One-way-delay measurement with a lossy difference aggregator

为了提高数据中心网络单向时延测量精度,更好地满足性能监测需求,用软件的方式实现有损差分聚合测量方法,以求只需发送少量控制报文就能测量任意端到端的单向时延,并消除丢包对时延结果产生的影响。设计搭建数据中心仿真环境进行实验,结果表明,该测量方法可以获得微秒级的精度结果,跟常用的测量方法相比可降低对网络的影响,部署代价低且使用方便。

In order to improve the accuracy of one-way-delay in data center network and to satisfy the performance measurement requirement, a lossy difference aggregator measurement method is achieved by using software way. In this method, only a few control packets are needed to be sent to measure any end-to-end one-way-delay and the results influenced by loss packets can also be handled. Data center simulation environment is then designed to conduct the experiments. The experiments show that this method can achieve results on microsecond level. Compared with common measurement methods, this method can lower the impacts on the network, has lower de- ployment costs and is more convenient for use.