Comparison of Virtualization Algorithms and Topologies for Data Center Networks

Data centers are core infrastructure of cloud computing. Network virtualization in these centers is a promising solution that enables coexistence of multiple virtual networks on a shared infrastructure. It offers flexible management, lower implementation cost, higher network scalability, increased resource utilization, and improved energy efficiency. In this paper, we consider switch-centric data center network topologies and evaluate their use for network virtualization by comparing Deterministic (D-ViNE) and Randomized (R-ViNE) Virtual Network Embedding, Global Resource Capacity (GRC), and Global Resource Capacity-Multicommodity (GRC-M) Flow algorithms.