Safe Reconfiguring Data Plane via Supervision over Resource and Flow States  

作　　者：GAO Wen ZHOU Boyang WU Chunming ZHOU Haifeng JIANG Ming HONG Xiaoyan 

机构地区：[1]College of Computer Science, Zhejiang University [2]Institute of Soft. and Intelli. Tech., Hangzhou Dianzi University [3]Department of Computer Science, University of Alabama

出　　处：《Chinese Journal of Electronics》2015年第3期642-647,共6页电子学报（英文版）

基　　金：supported by the National Basic Research Program of China(973 Program)(No.2012CB315903);the Program for Key Science and Technology Innovation Team of Zhejiang Province(No.2013TD20,No.2011R50010-05);863 Program of China(No.2015AA016103);the National Natural Science Foundation of China(No.61379118)

摘　　要：In the Software-defined networking(SDN),when multiple control domains are used in control services,the transient state problem can occur causing the service flow interruption when border switches are updated asynchronously. We analyze the uniqueness of this problem for SDN, and propose a light-weight protocol for safe reconfiguration of the border switches in order to improve the availability of the services running in SDN. Our solution is designed as a generic supervision layer added in the control plane to support different types of services. To demonstrate the benefits, we implement a prototype of Informationcentric networks(ICN) with the protocol, and conduct experiments using Planet Lab. The results show the ICN service can continuously serve high volume requests for contents despite the congestions built by the heavy background traffic. The performance gains in terms of the mean and standard deviation of the content retrieve delay are40.5% and 21.56%.In the Software-defined networking(SDN),when multiple control domains are used in control services,the transient state problem can occur causing the service flow interruption when border switches are updated asynchronously. We analyze the uniqueness of this problem for SDN, and propose a light-weight protocol for safe reconfiguration of the border switches in order to improve the availability of the services running in SDN. Our solution is designed as a generic supervision layer added in the control plane to support different types of services. To demonstrate the benefits, we implement a prototype of Informationcentric networks(ICN) with the protocol, and conduct experiments using Planet Lab. The results show the ICN service can continuously serve high volume requests for contents despite the congestions built by the heavy background traffic. The performance gains in terms of the mean and standard deviation of the content retrieve delay are40.5% and 21.56%.

关 键 词：Software-defined NETWORKING NETWORK architecture NETWORK management 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]