Software Defined Networks (SDN) advocates segregation of network control logic, forwarding functions and management applications into different planes to achieve programmability, automated dynamic flow in next generation networks. It promotes deployment novel augmented have flexible, robust, scalable cost-effective deployments. All these features introduce new research challenges require secure...

This paper analyzes the importance of a centralized controller based system with congestion over the network. Some previous researches show validity of the centralized controller by experiments [11]. However, the effectiveness has not proved analytically. Therefore, this paper provides an idea for the congestion control over the path instead of over coming it from the congested node. When delay...