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《Journal of Software》 2015-01
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State-of-the-Art Survey on Software-Defined Networking(SDN)

ZHANG Chao-Kun;CUI Yong;TANG He-Yi;WU Jian-Ping;Department of Computer Science and Technology,Tsinghua University;  
Network abstraction brings about the naissance of software-defined networking. SDN decouples data plane and control plane, and simplifies network management. The paper starts with a discussion on the background in the naissance and developments of SDN, combing its architecture that includes data layer, control layer and application layer. Then their key technologies are elaborated according to the hierarchical architecture of SDN. The characteristics of consistency, availability, and tolerance are especially analyzed. Moreover, latest achievements for profiled scenes are introduced. The future works are summarized in the end.
【Fund】: 国家自然科学基金(61120106008 61161140454);; 国家高技术研究发展计划(863)(2013AA010401);; 国家下一代互联网示范工程(CNGI-12-03-003)
【CateGory Index】: TP393.02
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