HANDLING CONTROLLER PLACEMENT PROBLEM USING GAMING THEORY IN SOFTWARE DEFINED WIDE AREA NETWORK (SD-WAN)

Software defined Wide Area Networking (SD-WAN) is considered as a novel architecture and key technology for future network model. The baseline model for SDN is used to couple data and control plane, facilitating flexible, centralized and networking control. Even though, Wide Area Network such as data centre network have various like SDN, it is still measured as crisis to deploy SDN in Wide area networks (WANs). Prevailing works like multiple controllers are needed in WANs with covering SDN domain. Moreover, SDN controller placement and domain partition problems have to be addressed. Therefore, this work proposed Game theory model based Nash equilibrium concept for placement and partition algorithms that may partition huge network into numerous small SDWAN effectually and efficiently. In this algorithm, Nash equilibrium is utilized stability and discovers SDN and determine optimal amount of SDN automatically. To compute this model, a new experimental structure is structured with WAN topologies. The outcomes demonstrate efficiency of algorithm for controller placement and domain partition crisis.