A recent trends in software defined networking (SDN) security

Software defined networking (SDN) has established a new method for creating and administering networks. It is a new architecture which has been designed to enable more agile and cost effective networks. It promotes separation of data plane and control plane. Thereby enabling network switches in the data plane to act as packet forwarding devices. It also uses logical centralized software to control the entire network behavior. SDN introduces new vulnerabilities that are not present in traditional networks such as communication bottlenecks between control plane and data plane. Current research in SDN follows several identifiable trends that are related to the state of deployment of SDN technologies. In this paper, SDN architecture, its salient features along with recent security aspects have been highlighted.