光通信研究Issue(5)：92-97,6.DOI:10.13756/j.gtxyj.2024.230117
光互连数据中心网络架构与业务路由技术研究
Research on Intra-rack Architecture and Routing Technology of Optical Interconnection Networks for Data Centers
摘要
Abstract
[Objective]At present,most of the proposed data center optical interconnection network architectures use optical networks for inter-rack communication among switches,while the intra-rack communication among servers is still realized by electrical Ethernet switches.Due to the large power and large number of electrical Ethernet switches,the existing data center optical interconnection networks have the problems of high energy consumption,low bandwidth provision and large packet de-lay.[Methods]In order to further improve the performance of data center optical interconnection network,this paper proposes an in-rack optical interconnection network architecture based on a rearrangeable non-blocking Clos network.In this architec-ture,servers in the rack are connected to each other through a three-stage Clos network.Non-blocking communication between servers in the rack can be achieved by the proposed multi-wavelength routing algorithm.[Results]In this paper,OMNET++software is used for simulation verification.The simulation results show that the throughput of the proposed architecture is 20%higher than that of the traditional in-rack electrical switching under the same conditions.The average end-to-end delay is reduced by 90%,and the energy consumption is reduced by 67%.[Conclusion]It also demonstrates that the proposed architec-ture can improve the performance of bandwidth usage,packet delay and energy consumption in a data center optical intercon-nection network.关键词
光互连/数据中心网络/架内通信/多级交换/波长路由Key words
optical interconnection/data center network/intra-rack communication/multistage switching/wavelength routing分类
信息技术与安全科学引用本文复制引用
王金涛,刘逢清..光互连数据中心网络架构与业务路由技术研究[J].光通信研究,2024,(5):92-97,6.基金项目
国家自然科学基金资助项目(62004105) （62004105）
