数据中心网络中基于SDN的大象流负载均衡的研究

o solve the problems of network congestion and load imbalance caused by elephant flow that carries large amounts of data in data center networks. This paper proposed an SDN based load balancing mechanism of elephant flow(EFLB) . When network load exceeded the threshold, the controller split the detected elephant flows down into multiple mice flows by Openflow feature and calculated dynamically the minimum load switch according to the collected network topology and link states to ensure load balancing. Experimental results show that the EFLB achieves network load balancing by improving the network throughput and link utilization compared with ECMP((equal-cost mulit-path routing) .