一种光电混合架构下数据中心机架内流量调度方案

With the deployment of cloud computing, virtualization and other emerging businesses in the data center, the traffic in the data center is growing rapidly. ToR (Top of Rack) of access layer, commonly known as "Rack", occupies about 80% of traffic activities in the data center, and the Rack is facing severe traffic forwarding pressure. The existing rack design based on the electric packet switching network is difficult to cope with the forwarding demand of high throughput, and the switch port queue frequently blocks and loses packets, which seriously affects the service quality and service performance. In order to alleviate the traffic pressure at the top of the stack switch, this paper introduces the photoelectric hybrid architecture into the data center rack, which makes use of the high bandwidth and low delay of the optical network to make up the deficiency of the electrical network, and proposes a data center rack traffic scheduling scheme based on MEMS. Experimental and simulation results show that the proposed traffic scheduling scheme in the photoelectric hybrid architecture can effectively alleviate the congestion in the frame, reduce the end-to-end delay of data, and reduce the packet loss rate in the access layer.