Performance analysis of SDN vs OSPF in diverse network environments

Abstract

Network convergence is an important aspect in networks because it can limit the damage resulting from network failures and changes. Consequently, a lot of research considered comparing the performance of different routing protocols, whether in IP or SDN, to assess their convergence speed and reaction to failures. We previously modeled OSPF vs SDN networks in general network deployments and studied their comparative convergence delays for different network conditions. However, the type of network and the architecture choices also affect performance. Consequently in this paper, we model network convergence for two network architectures, datacenters and WANs, to discern the difference in SDN and IP convergence processes and speeds when the network type and characteristics change.

An Efficient Network Resource Management in SDN for Cloud Services

“…According to their results, the routing convergence time in SDN architecture is less than that in the distributed legacy network architecture. In [13], the authors similarly analyzed the performance of the network convergence in the legacy network and the SDN architectures.…”

“…We also do not focus on the performance comparison of routing protocols with the legacy network and the SDN either in symmetry. The performance of routing protocols in the legacy network and the SDN was symmetrically compared and analyzed well in [12,13]. In this study, we focus on efficient network resource management with SDN and propose a new network resource allocation mechanism that can be used in SDN.…”

“…architecture. In [13], the authors similarly analyzed the performance of the network convergence in the legacy network and the SDN architectures.…”

“…For performance comparison, we also implemented the OSPF, which is the most commonly used in the conventional path selection algorithms. Many researchers have investigated its performance in the SDN environment [12,13] and compared their proposals with the OSPF [14]. In our study, we also evaluate the OSPF and compare it with our proposed algorithm.…”