基于分类的软件定义网络流表更新一致性方案  

Classification Based Consistent Flow Update Scheme in Software Defined Network

作　　者：周烨[1] 杨旭[1] 李勇[1] 苏厉[1] 金德鹏[1] 曾烈光[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《电子与信息学报》2013年第7期1746-1752,共7页Journal of Electronics & Information Technology

基　　金：国家973计划项目(2013CB3291005);国家自然科学基金(61171065;61021001);国家863计划项目(2013AA010601;2013AA010605);中兴通讯股份有限公司产学研合作基金资助课题

摘　　要：软件定义网络是近年来的研究热点,流表更新问题则是其中的一个重要问题。该文提出基于分类的流表更新一致性方案,在保证更新一致性的同时,具有通用性强、有效减轻控制负载等特点。文中引入逻辑证明来验证所提方案能够保证流表更新一致性。多个场景的仿真结果显示,与相关研究相比,该文方案有更好的通用性,更新时间基本一致,能有效降低控制负载。Software Defined Network（SDN） becomes a hot topic in recent years,in which flow update is one of important issues.In this paper,a classification based consistent flow update scheme is proposed,which has the advantage of strong generality and efficiently lightening working load on controller.The logic synthesis is also used to demonstrate how the scheme maintains consistency in the whole updating process.Simulation results in multiple scenarios show that the proposed scheme achieves better generality than existing schemes in related work.In addition,the scheme reduces significantly working load on controller while only costs nearly the same time in the update process as compared schemes.

关 键 词：软件定义网络 流表更新 流表更新一致性 

分 类 号：TP393.0[自动化与计算机技术—计算机应用技术]