网络与信息安全学报 ›› 2017, Vol. 3 ›› Issue (12): 62-78.doi: 10.11959/j.issn.2096-109x.2017.00223

• 学术论文 • 上一篇    

Flow consistency in an intensive SDN security architecture with multiple controllers

LVYing-ying,GUOYun-fei,QIChao,WUQi,WANGYa-wen   

  1. National Digital Switching System Engineering&Technological R&D Center,Zhengzhou 450002,China
  • 修回日期:2017-11-08 出版日期:2017-12-01 发布日期:2018-01-12
  • 作者简介:LV Yingying (1993-),born in Jiangxi. He is working on his master degree at National Digital Switching System Engineering Technology Research Center. His research interests include cyber security and software-defined|GUO Yunfei(1963-),born in Henan. He is a Ph.D supervisor and professor at National Digital Switching System Engineering Technology Research Center. His main research interests include cloud security,telecommunication network security and cyber security.|QI Chao(1991-),born in Jiangxi.He is working on his Ph.D degree at National Digital Switching System Engineering Technology Research Center. His research interests include cyber security and software-defined network.|WU Qi (1991-),born in Jiangsu. He is working on his Ph.D degree at National Digital Switching System Engineering Technology Research Center. His research interests include cyber security and software-defined network.|WANG Yawen (1990-),born in Henan. He is working on his Ph.D degree at National Digital Switching System Engineering Technology Research Center. His research interests include cloud computing and cyber security.

Flow consistency in an intensive SDN security architecture with multiple controllers

Ying-ying LV,Yun-fei GUO,Chao QI,Qi WU,Ya-wen WANG   

  • Revised:2017-11-08 Online:2017-12-01 Published:2018-01-12
  • Supported by:
    The National Natural Science Foundation of China(61521003);The National Natural Science Foundation of China(61602509);The National Key R&D Program of China(2016YFB0800100);The National Key R&D Program of China(2016YFB0800101);The Key Technologies Research and Development of Program of Henan Province(172102210615)

摘要:

Abstract:

As critical components in SDN,controllers are prone to suffer from a series of potential attacks which result in system crashes.To prevent the compromise caused by single failure of controller or flow-tampering attacks,Mcad-SA,an aware decision-making security architecture with multiple controllers was proposed,which coordinates heterogeneous controllers internally as an“associated”controller.This architecture extends existing control plane and takes advantage of various controllers’merits to improve the difficulty and cost of probes and attacks from attackers.In this framework,flow rules distributed to switches are no longer relying on a single controller but according to the vote results from the majority of controllers,which significantly enhances the reliability of flow rules.As to the vote process of flow rules,segmentation and grading is adopted to pick up the most trustful one from multiple flow rules and implement flow consistency.This mechanism avoids comparison between rules via bit by bit which is impractical among several controllers.Theory analysis and simulation results demonstrates the effectiveness,availability and resilience of the proposed methods and their better security gain over general SDN architectures.

Key words: multi-controller, security, Mcad-SA, flow consistency

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