Research On Electric Power Data Center Architecture Based On SDN Technology And Performance Analysis

The China State Grid Corp actively carry out "SG186" construction since the 11 th five-year plan, bagan to build a data center. During the 12 th five-year plan, they proposed the construction of strong smart grid and group management in the planning, construction, operation, maintenance, marketing five aspects and centralized management in human, financial, material three aspects and amajor measure to further improve information and communication ability, ensure that relevant supporting information system capable of stable operation. Since the implementation of these policies,the amount of data in electric power data center will surge。With the surge of data,the size of electric power data center will continue to increase and the data exchange will continue to accelerate,this will propose higher demands for storage and process of massive smart grid information. However, the traditional data center network existence scattered resources, limited bandwidth, low routing efficiency and some other shortcomings does not meet the power company’s highly scalable, high robustness, flexible topology and other demand of network under the new situation. The network architecture of electric power data center in urgent need of improvement. Due to the proposed of software defined network(SDN) technology and successfully applied in Google data center, a new solution has been provided to solve the bottleneck problem of electric power data center. SDN using Open Flow protocol constitutes a control/forwarding separated networks to meet the intensive server requires centralized management in data center.This paper first analysis the current status of electric power data center, according to the issues this paper will research on applying Open Flow-based SDN technology to electric power data center Because there are many switches in electric power data center, it requires the use of a distributed multi-controller to manage, however there is currently no mechanism for these controllers to cooperate with the each other. When a cross-domain requests appear, often using flooding mechanisms for data transmission, so that not only transport for a long time and likely to cause network congestion, greatly reducing the transmission efficiency. Based on these questions this paper presents a collaborative model for multi-domains Open Flow networks, which allows different network domains to collaborate with each other in an efficient way. Finally, test the performance of proposed model, we select Mininet build the network topology, NOX as a controller, using Wireshark for network traffic monitoring. The proposed multi-domain Open Flow network collaboration model also has a better performance than traditional flooding mechanism the network blocking rate and path length. For Open Flow switches in the data center to improve the application of power a good theoretical basis.