A Dynamic Load Balancing Architecture for SDN

Software-defined networking (SDN) can realize the separation between control and data planes. Relying on a single controller in future networks imposes a potential scalability problem. To tackle this problem, it has been proposed to use multiple controllers to manage the large wide-area network, where load balancing among the multiple controllers becomes the major challenge. This paper proposes a novel multi-controllers architecture for SDN. In this architecture a SuperController communicate with RegularControllers split into clusters. Thanks to our architecture which enables dynamic load balancing we improve the run time of the periodic operation and break the usual dependency between SuperController and RegularController existing in previous works.