网络与信息安全学报2017，Vol.3Issue(5)：70-76,7.DOI:10.11959/j.issn.2096-109x.2017.00167
TPEFD:an SDN-based efficient elephant flow detection method
TPEFD: an SDN-based efficient elephant flow detection method
摘要
Abstract
Software-defined networking (SDN) is a new approach to configure and operate programmable switches of the networks (especially the data center networks) through a centralized software controller.Elephant flows normally exist in data center networks and take up a large amount of network bandwidth,so the elephant flow detection is very important to ease network congestion.A two-phase real-time detection (TPEFD) method was proposed to detect the elephant flows in the SDN-based network.First,the controller obtained aggregated statistics and shrank sample scope until it was small enough,packets were sampled in the scope in switches.In order to identify the elephant flows,the sFlow sampling results were compared with the dynamic threshold.If the sampling value exceeded the threshold value,the flow was recognized as an elephant flow.The efficiency of our method in an SDN experimental environment was evaluated.The experimental results indicated that the proposed method was feasible and the detection time was efficient.关键词
OpenFlow/elephant flows/flow detection/data centerKey words
OpenFlow/elephant flows/flow detection/data center引用本文复制引用
TIAN Yu,LIU Jing,LAI Ying-xu,BAO Zhen-shan,ZHANG Wen-bo..TPEFD:an SDN-based efficient elephant flow detection method[J].网络与信息安全学报,2017,3(5):70-76,7.基金项目
The Natural Science Foundation of Beijing (No.4162006),The Natural Science Foundation of Qinghai Province (No.2017-ZJ-912) （No.4162006）
