面向流数据处理的数据中心网络拓扑研究

摘要

Astheunderlyinghardwareplatformofnetworkservices,networktopologicalstructureandworkingmechanismofdatacentre plays decisive roles in the performance of upper layer application services.The tree-like hierarchical structure in traditional data centre can no longer meet the demand of the next-generation network services,in particular,the traditional network structure is not applicable to data stream more.Therefore,we propose a new construction means of modular data centre topology for data stream processing,and design the server-centricrouting algorithm.The scheme uses low-cost business-class switches to build data centre networks,while reducing the construction costs it increases network throughput and fault tolerance.Experiments show that the new topology structure and routing algorithm have better network throughput performance and fault tolerance in data stream processing than the traditional tree-like structure.%作为网络服务的底层硬件平台，数据中心的网络拓扑结构及工作机制对于上层的应用服务的性能具有决定性的作用。传统数据中心采用的树形分层结构已经难以满足新一代网络服务的需求，特别是在数据流的应用上传统的网络结构更加无法适用。因此，提出一种针对流数据处理的新型模块化数据中心拓扑构建方式并设计以服务器为中心的路由算法。该方案采用低造价的商业级交换机构建数据中心网络，在降低构建造价的同时提高网络的吞吐量及容错性能。实验表明，所提出的拓扑结构及路由算法在流数据处理上的网络吞吐量表现优于传统的树形结构并且具有更好的容错性能。