基于ibdump的InfiniBand网络拥塞控制观测方法研究  

Research on Observation Mechanism for Congestion Control in InfiniBand Network Based on ibdump

作　　者：曹光权[1] 张子文[1] 孙志刚[1] 陈洪义[1] 胥庆杰[1] 

机构地区：[1]国防科学技术大学计算机学院,长沙410073

出　　处：《计算机科学》2013年第4期47-50,共4页Computer Science

基　　金：国家"863"重点基础研究发展规划(2011AA01A10)资助

摘　　要：在InfiniBand(IB)体系网络中,拥塞控制(Congestion Control,CC)能够确保高性能和资源利用率,避免拥塞传播对于无辜流的性能损害。首先分析IB网络采用的ECN(Explicit Congestion Notification)拥塞控制机制,然后提出一种集中控制的多点流量发生器CTBG(Central Traffic Behavior Generator),它提供了对流量的统计能力。为了进一步剖析IB网络拥塞控制的细粒度行为,提出了基于ibdump和wireshark的观测方法。实验表明,提出的测量机制能够细粒度、低开销地观测IB网络的拥塞控制行为,其对拥塞控制机制的研究具有重要的指导意义。Congestion control in InfiniBand network can guarantee high performance and resource utilization.It avoids performance damage of congestion spreading to victim flow.This paper first introduced the InfiniBand congestion control mechanism of ECN（Explicit Congestion Notification）.Then,a new tool named CTBG（Central Traffic Behavior Generator） was proposed to generate congestion traffic from multiple nodes and analyze the result in a central controller mode.In order to further investigate the congestion control behavior of InfiniBand,we proposed the new observation method based on ibdump and wireshark.The experiment indicates the observation method in this paper can observe the InfiniBand congestion control behavior with fine granularity and low cost.This method has important significance for the research of the InfiniBand congestion control mechanism.

关 键 词：INFINIBAND 拥塞控制 观测 ECN ibdump 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]