Energy Efficiency of Data Center Network Based on Software Defined Network

Energy efficiency in Data Center Network (DCN) realizes the concept of green computing in saving energy use and costs. Servers and networks are DCN elements that use the most energy. Thus, energy efficiency methods use the Virtual Machine (VM) assignment approach for servers, and traffic engineering for networks. Both of these methods are developed on the concept of DCN as the current network paradigm with a traffic-aware and end-host solution approach. This paper used descriptive method to explain three methods of energy efficiency in DCN applied to SDN network. The methods are ElasticTree, CARPO, and Honeyguide which use Fat-Tree as DCN topology. The ElasticTree and CARPO methods use the traffic-aware solution approach for saving energy on DCN network while the Honeyguide is as an end-host aware solution for combining servers and networks. The result of this paper, we Figure out the relationship between energy efficiency methods in DCN and SDN in Fat-Tree topology, so that it can be the basis for the development of the next method.