软件定义网络分布式控制平面部署问题研究综述

Summary of Distributed Control Plane Placement Research in Software Defined Networks

介绍了分布式控制平面部署问题的产生,对目前的研究方法进行了分类,分析了目前研究中遇到的问题及解决方案,并对其今后的研究和发展进行了展望。

Software defined network （SDN） advocates a centralized network control, where a controller manages a network from a global view of the network. However, in a large-scale WAN deployment, this rudimentary centralized approach has several limitations related to performance and scalability. So the study of distributed control plane has drawn the attention of researchers ; specifically controller placement has become a researching hot spot. This paper firstly introduces the causes of distributed control plane placement problem and presents the classification of current research methods, and then analyzes the problems and solutions encountered in the present study. Finally, it summarizes the future research and development trend.