Virtual network embeddings in data center networks
Soroush Haeri, Ljiljana Trajković · 2016
Network visualization enables coexistence of multiple virtual networks on a shared infrastructure without requiring unified protocols, applications, and control and management planes. Recent approaches such as Software Defined Networking have enabled cloud service providers to offer virtualized network services that require embedding virtual network requests in data centers. In this paper, we employ R-Vine, D-Vine, and Global Resource Capacity (GRC) algorithms to perform a series of virtual net work embeddings on BCube and Fat-Tree substrate networks. We compare these two data center network topologies to determine the topology that is better suited for virtual network embeddings. Simulation results show that the Fat-Tree network is capable of hosting additional virtual network requests, resulting in higher substrate node and link utilization.