计算机应用研究2016，Vol.33Issue(5)：1461-1467,7.DOI:10.3969/j.issn.1001-3695.2016.05.042
基于路径及反馈的软件定义网络策略更新方案
Path and feedback based policy update scheme for SDN
摘要
Abstract
Although software-defined networking has the network architecture of logically centralized control,its underlying network still has the characteristics of distributed systems,and the resulting problem of policy update inconsistency will lead to an error processing of data packets,thereby causing a series of incorrect network behaviors.At this point,the proposed path and feedback based update scheme accurately tracked the location of old flows to achieve the parallel transmission of old and new flows,and the established network performance feedback model which based on BP neural network could dynamically ad-just the packets re-released timing according to the network status.It aimed this scheme to obtain better network performance as well as the consistency guarantee.Based on POX,Mininet and MATLAB,the simulation and training results show that the feedback model can accurately depict changes in network performance,and compare with similar studies,this scheme has bet-ter network performance,efficiency,commonality,isolation and considerably lower rule-space consumption.关键词
软件定义网络/OpenFlow/一致性更新/策略更新Key words
software-defined networking (SDN)/OpenFlow/consistency update/policy update分类
信息技术与安全科学引用本文复制引用
李玲芮,李俊,常向青,刘鹏..基于路径及反馈的软件定义网络策略更新方案[J].计算机应用研究,2016,33(5):1461-1467,7.基金项目
国家“973”计划资助项目（2012CB315803）；中国科学院网络信息中心“一三五”重点培育项目 （）
