Resource Allocation Scheme for SDN-Based Cloud Data Center Network

Abstract

Cloud Data Center Network (CDCN) is receiving considerable attention and becomes one of the hottest topics among academia and industry. It is difficult to deliver the new emerging network services in a flexible way and to fulfill the huge amount of demand with better performance in a current data center network. Traditional routing cannot provide accessible performance for all traffic types, and it can cause excessive link utilization in the network. In this paper, we propose the resource allocation scheme to support Quality of Service (QoS) for various types of traffic while maintaining the network link utilization as much as high. We present a resource allocation scheme based on Software Defined Networking (SDN) that integrates the proposed scheme to provide better performance in CDCN. We demonstrate the effectiveness of the proposed scheme on the emulated SDN network. The proposed scheme is compared with the conventional shortest path scheme. Emulation results showed that the proposed scheme provides better performance in term of packet loss rate for the QoS traffics and great improvement in link utilization.