Evaluation of SDN-Based Traffic Engineering in Data Center Networks Using the Weighted Product Method

The meteoric rise of cloud computing has catalysed an explosion of data traffic within Data Centre Networks (DCNs), rendering traditional management approaches inadequate. In response to this overwhelming surge, advanced traffic management solutions have become imperative. This investigation delves into the realm of Software-Defined Networking (SDN)-based Traffic Engineering for DCNs, pinpointing the urgent necessity for network management strategies that are not only efficient but also adaptable and secure. The significance of this research is underscored by SDN's potential to transform DCN management fundamentally. With its capability for programmable, centralised control over network resources, SDN offers a promising paradigm shift. As DCNs grapple with mounting demands for heightened performance, unwavering reliability, and optimal energy efficiency, the exploration of diverse SDN-based routing alternatives takes on critical importance for the optimisation of network operations. Employing the Weighted Product Method (WPM), this study rigorously evaluates six routing alternatives: OSPF, ECMP, Hedera, MicroTE, Mahout, and ANS. This methodological approach is characterised by a thorough examination of pivotal performance metrics, including throughput, fault tolerance, network security, energy consumption, cost, and latency. Through the application of the WPM, the research presents a systematic comparison of these alternatives, unveiling insights into their relative efficacy within the unique context of DCNs. The findings illuminate a distinct hierarchy among the scrutinised routing options. Hedera emerges resplendently as the top contender, boasting a remarkable preference score of 0.946974, and showcasing unparalleled prowess across all evaluated criteria. In the ensuing ranks, OSPF routing and Mahout claim the second and third positions, respectively, demonstrating commendable performance in key areas such as latency optimisation and bolstered security. While Hedera asserts itself as the premier choice for SDN-based Traffic Engineering in DCNs, the selection of the most suitable routing alternative must be meticulously tailored to the specific demands of individual data centre environments. This study furnishes invaluable insights, steering the decision-making processes in network management and paving the way for more robust and efficient data centre networks amidst the burgeoning cloud computing landscape.