Enhancing Recovery Scheme in Software-Defined Network using Segment Routing

Abstract

Software-Defined Networking (SDN) based architectures, such as Open Flow, offer a chance to design such a control plane. The SDN controller performs all complex functions, including routing and security checks. Segment Routing is a new emerging technology that enables source routing. Segment Routing (SR) technology can enable networks to achieve scalable SDN and traffic engineering solutions. The problem of computing bandwidth guaranteed paths for given flow requests is a challenge. This proposed system presents fast rerouting algorithm exploiting the link or node failure to compute the optimal backup path (active backup path). In this system, failure in network link or node is detected by using the Open Flow switches and recomputed the new optimal path using fast reroute with segment routing. The goal of this algorithm is to reduce the failure recovery time with low complexity and decreases the packet overhead in case of failure.