Design and Implementation of Distributed Controller Clustering for Solving the Issue of Single Failure in SDN Networks

Abstract

Software-Defined Networks (SDN) It is a centralized control structure in the network that opens up new possibilities that did not exist before. The significant characteristic of this innovative approach is the focus on the capability of proposing networks of high dynamicity and programmability to transform the intelligence of underlying systems to the networks via controllers. The main issue of the SDN approach is found in its security, mainly due to its central-controlling architecture since the entire network is controlled from a central point. This makes it very vulnerable to single-point failure. In this paper, a fully Distributed SDN controller is proposed for solving the one point failure which exists within the single SDN controller. In general, the concept involves forming cluster of distributed controllers whereby each controller controls its domain and can thereby share the load within the network. The experimental results of the proposed system show an increase and enhancement in the performance of the network. The single-point failure issues have been overcome. The throughput of the proposed system increased with 20% while the packet loss rate was minimize with 33%.

Detection and Mitigation Distribution Denial of Service Attack Based on Blockchain Concept

“…Another one is traffic analysis which is considered one of the network-based approaches [11,13,14]. Additionally, machine learning and artificial intelligence techniques are widely used today to detect distributed denialof-service attacks, in addition to blockchain technology [2,4,15,16]. Intelligence techniques are widely used today to detect distributed denial-of-service attacks, In addition to blockchain technology [2,4].…”