An Efficacy of Multi-Controller Model Deployment Strategy in Software-Defined Networks

Abstract

Software-Defined Networking (SDN) has emerged as a promising strategy for increasing network flexibility and manageability. The choice of controller architecture significantly impacts network performance within the SDN domain. This study aims to evaluate the performance of centralized and multi-controller architectures in SDN using the Mininet emulator and Ryu Controller as experimental instruments. The research focuses on significant performance metrics, including throughput, volatility, and memory consumption. The outcomes indicate that the selection of controller architecture has a major impact on network performance. The centralized architecture had a greater throughput but a greater memory consumption. In specific scenarios, the multi-controller equal role configuration utilized a lower amount of memory but exhibited slightly higher jitter. These results highlight the importance of designing and optimizing controller architectures in SDNs with concern to obtain desired performance results.