Survey on Scalability of Control Plane in Software-Defined Networking
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National Key Basic Research Program (973) (2013CB329104); National Natural Science Foundation of China (61521003, 61502530, 61372121); National High Technology Research and Development Program of China (863) (2015AA016102)

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    Abstract:

    Software-defined networking (SDN) is an emerging paradigm that decouples control and data plane. The control plane advocates a centralized approach of network control, which provides both flexibility and high efficiency, but suffers from serious scalability problems. The state-of-art works on the scalability of control plane in SDN is surveyed in this paper. First, the factors that influence the scalability of control plane are analyzed, and some approaches for improvement are revealed accordingly. Next, current researches and solutions are introduced from the following 4 aspects:Cache optimization on data plane, high-performance controller, distributed control plane and control resource allocation optimization. Finally, a brief summary of current technology is provided along with a discussion on future research directions.

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张少军,兰巨龙,胡宇翔,江逸茗.软件定义网络控制平面可扩展性研究进展.软件学报,2018,29(1):160-175

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History
  • Received:June 16,2016
  • Revised:February 03,2017
  • Adopted:
  • Online: July 20,2017
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