Joint Policy for Virtual Network Embedding in Distributed SDN-Enabled Cloud

Joint Policy for Virtual Network Embedding in Distributed SDN-Enabled Cloud

연구 분야: Networking

학회: Journal of Network and Systems Management

Network Virtualization (NV) has been devised as one of the key bases of operative cloud systems. Commonly, Cloud Providers (CPs) seek to design their network policy, especially in a distributed environment. Virtual Network Embedding (VNE) is a functional tool granted by the NV technologies that allows CPs to manage their physical resources based on received Virtual Networks (VNs). This paper focuses on the context when a given Virtual Network Request (VNR) needs to be shared among multiple Data Center Networks (DCNs). The proposed VNE solution executes a two-stage policy where at the first stage, the DCNs and VNRs have been managed through an explicit approach to solve the assignment problem. Then, we perform a greedy load-balancing algorithm to accomplish the VNR mapping stage. The simulation results demonstrate that the two proposed methods outperformed the similar techniques used for comparison.