SOFTWARE-DEFINED NETWORK SECURITY AND ROUTING MECHANISMS: AN OVERVIEW

Abstract

The Data Plane (DP) and network Control Planes (CP) are separated by Software Defined Networking (SDN). Applications are separated from the underlying network infrastructure, which is conceptually centralised in terms of network intelligence and state. By providing global insight into the network state and facilitating easy conflict resolution from the logically centralised control plane, SDN improves network security. As a result, the SDN design gives networks the ability to actively monitor traffic and identify dangers, which makes it easier to do network forensics. To examine risks to the SDN's application, CP, and DP in this study. Various security techniques for network-wide security in SDN are described after the security platforms that safeguard each of the planes. The focus on Deep Reinforcement Learning (DRL) for optimizing routing in SDN involves the application techniques to improve network performance and adaptability.   In summary, this article outlines the routing difficulties that SDN faces today and in the future, as well as potential paths for safe SDN.