Journal on Communications ›› 2017, Vol. 38 ›› Issue (11): 188-198.doi: 10.11959/j.issn.1000-436x.2017224

• Correspondences • Previous Articles    

Multi-controller balancing deployment strategy based on reliability evaluation in SDN

Tao HU,Jian-hui ZHANG,Teng MA,Wei ZHAO   

  1. National Digital Switching System Engineering R&D Center,Zhengzhou 450002,China
  • Revised:2017-06-07 Online:2017-11-01 Published:2017-12-13
  • Supported by:
    The National Natural Science Foundation of China(61521003);The National Natural Science Foundation of China(61372121);The National Natural Science Foundation of China(61572519);The National Key Technology R&D Program of China(2014BAH30B01);The National High Technology Research and Development Program of China (863 Program)(2015AA016102);The National High Technology Research and Development Program of China (863 Program)(2013AA013505);Key Scientific and Technological Project of Henan Province(162102210034)

Abstract:

The control plane has low reliability and controller loads were unbalanced in distributed software defined networks,and a multi-controller balancing deployment strategy based on reliability evaluation was proposed.Firstly,node reliability was evaluated by weighting node efficiency and path quality,optimizing the controller location with balancing factor.Then based on improved k-center clustering,the redundant functions was introduced and the switch allocation was completed according to node attractiveness degree and controller load balancing rate,achieving a reasonable SDN sub-domain planning.The simulations show that compared with the existing strategy the number of required controllers is reduced by an average of 22.1%.The control plane elasticity is enhanced,and the controller load balancing performance has been improved significantly.

Key words: software defined networking, controller, reliability, load balancing

CLC Number: 

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