SDN Multi-Domain Supervisory Controller with Enhanced Computational Security Count

Abstract

As a new paradigm, software-defined networks (SDNs) are becoming increasingly popular in the network world. From the available research, it can be concluded that SDN multi-domain environments have been under-protected. In areas where security was not a primary concern, management and policies received the vast majority of attention. Previous studies have proposed a "distributed SDN Supervisory Controllers in Multi-Domain Environment" but still suffer from an operational count limitation. An improved framework for distributed SDN supervisory controllers operating in a multi-domain environment is the main focus of this paper. Additionally, we implemented an SDN supervisory controller on the network layer and a global SDN supervisory controller to improve operational counts for security. Furthermore, a security layer with a local and a global security controller was implemented. To test the proposed framework's compatibility, we constructed a network using Mininet, consisting of virtual hosts, switches, controllers, and links. In order to connect the various domains and the control centre, the network uses a wide area network. The switch takes an average of 120 milliseconds, with a packet loss rate of 1.89 percent on average, according to simulation and experiment results. A more efficient security architecture has been put forth, and it is superior to the one currently in place.