A Dormant Multi-Controller Model for Software Defined Networking  

作　　者：FU Yonghong BI Jun WU Jianping CHEN Ze WANG Ke LUO Min 

机构地区：[1]Institute for Network Sciences and Cyberspace, Tsinghua University, Beijing 100084, China [2]Department of Computer Science, Tsinghua University, Beijing 100084, China [3]Tsinghua National Laboratory for Information Science and Technology (TNList), Beijing 100084, China [4]Department of Electronic Engineering, Tsinghua University, Beijing 100084, China [5]Shannon Lab, Huawei Technologies Company, Santa Clara 950950, USA

出　　处：《China Communications》2014年第3期45-55,共11页中国通信（英文版）

基　　金：the National High-tech R&D Program ("863" Program) of China，the National Science Foundation of China，National Science & Technology Pillar Program of China，the National Science Foundation of China，the Post-Doctoral Funding of China，Tsinghua-Huawei joint research project

摘　　要：In order to improve the scalability and reliability of Software Defined Networking(SDN),many studies use multiple controllers to constitute logically centralized control plane to provide load balancing and fail over.In this paper,we develop a flexible dormant multi-controller model based on the centralized multi-controller architecture.The dormant multi-controller model allows part of controllers to enter the dormant state under light traffic condition for saving system cost.Meanwhile,through queueing analysis,various performance measures of the system can be obtained.Moreover,we analyze the real traffic of China Education Network and use the results as the parameters of computer simulation and verify the effects of parameters on the system characteristics.Finally,a total expected cost function is established,and genetic algorithm is employed to find the optimal values of various parameters to minimize system cost for the deployment decision making.In order to improve the scalability and reliability of Software Defined Networking （SDN）, many studies use multiple controllers to constitute logically centralized control plane to provide load balancing and fail over. In this paper, we develop a flexible dormant multi-controller model based on the centralized multi-controller architecture. The dormant multi-controller model allows part of controllers to enter the dormant state under light traffic condition for saving system cost. Meanwhile, through queueing analysis, various performance measures of the system can be obtained. Moreover, we analyze the real traffic of China Education Network and use the results as the parameters of computer simulation and verify the effects of parameters on the system characteristics. Finally, a total expected cost function is established, and genetic algorithm is employed to find the optimal values of various parameters to minimize system cost for the deployment decision making.

关 键 词：Software Defined Networking MULTI-CONTROLLER queueing theory PERFORMANCEEVALUATION 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论] TP273[自动化与计算机技术—计算机科学与技术]