软件定义网络可扩展性研究综述  

Scalability of software defined network

作　　者：付永红[1,2,3] 毕军[1,2,3] 张克尧[1,2,3] 吴建平[1,2,3] FU Yong-hong;BI Jun;ZHANG Ke-yao;WU Jian-ping(Institute for Network Sciences and Cyberspace, Tsinghua University, Beijing 100084, China;Department of Computer Science and Technology, Tsinghua University, Beijing 100084, China;Tsinghua National Laboratory for Information Science and Technology (TNList), Beijing 100084, China)

机构地区：[1]清华大学信息网络科学与网络空间研究院,北京100084 [2]清华大学计算机科学与技术系,北京100084 [3]清华信息技术国家实验室,北京100084

出　　处：《通信学报》2017年第7期141-154,共14页Journal on Communications

基　　金：国家自然科学基金资助项目(No.61472213)~~

摘　　要：随着软件定义网络的发展,可扩展性成为软件定义网络面临的重要问题之一。主要研究由于SDN的自身特征导致应用于大规模网络时面临的可扩展性问题。首先,讨论了导致SDN可扩展问题的3个主要方面原因:控制平面和数据平面分离、逻辑集中的控制以及细粒度的流管控。其次,从性能可扩展、地理位置可扩展、管控可扩展3个方面介绍了当前SDN可扩展性问题的研究进展。再次,讨论了SDN可扩展性评价方面的进展。最后,展望了SDN可扩展性的未来研究方向。With the development of software-defined networking(SDN),its scalability has become one of the most important issues of SDN.The features of SDN was studied which lead to its scalability problem when SDN was applied to large-scale network.The three main causes leading to scalability problem were discussed:control plane and data plane separation,logical centralized control and fine-grained flow control.Meanwhile,the studies which focus on the scalability of SDN from three aspects:scalability of performance,scalability of geographic and scalability of control was presented.Further,the studies on the performance evaluation of the scalability of SDN were introduced.Finally,the future work was discussed.

关 键 词：软件定义网络 可扩展性 控制平面 数据平面 综述 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]