SDN网络中控制器放置问题综述  

Survey of controller placement problem in software defined network

作　　者：高先明[1] 王宝生[1] 邓文平[1] 陶静[1] GAO Xian-ming;WANG Bao-sheng;DENG Wen-ping;TAO Jing(Department of Computer, National University of Defense Technology, Changsha 410073, China)

机构地区：[1]国防科学技术大学计算机学院,湖南长沙410073

出　　处：《通信学报》2017年第7期155-164,共10页Journal on Communications

基　　金：国家重点基础研究发展计划("973"计划)基金资助项目(No.2012CB315906);国家自然科学基金资助项目(No.61373039)~~

摘　　要：为了改变当前Internet网络管理复杂度高的局面,提出软件定义网络(SDN,software defined network),通过控制器生成流策略来直接控制数据流的转发行为。随着SDN网络部署与实践,研究人员发现控制器在网络中部署位置能直接影响到网络性能。近年来,围绕控制器放置问题的研究已逐步展开,研究内容集中在性能尺度以及搜索算法这2个方面。结合当前研究现状,对已有的控制器放置问题的研究进行系统性归纳总结,为后续进一步研究提供参考。In order to change situation of high management complexity in current Internet,software defined network(SDN)was proposed,which mainly aimed to directly control forwarding behaviors of data-flow by using flow strategies generated by controllers.With the deployment and applications of SDN,research communities found that the controller placement in SDN network could directly affect network performance.In recent years,controller placement problem(CPP)has become a hot topic,where performance metric and searching algorithms are important research areas.Based on current researches,the existing controller placement problem was systematically analyzed and summarized,which was expected to be helpful for the follow-up research.

关 键 词：软件定义网络 多控制器 控制器放置 性能尺度 搜索算法 

分 类 号：TP393.0[自动化与计算机技术—计算机应用技术]