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DPCell: Constructing Novel Architectures of Data Center Networks on Dual-Port Servers
IEEE NETWORK ( IF 9.3 ) Pub Date : 2021-07-05 , DOI: 10.1109/mnet.011.1500102
Deshun Li , Heng Qi , Yanming Shen , Keqiu Li

To store and process big data, large-scale data centers are built to interconnect a huge number of servers, which is a challenging task due to the network scalability and performance. In this article, we study the underlying common principles behind the existing data center network architectures on dual-port servers. We find that the existing architectures hardly achieve both large scalability and bisection width simultaneously. As a result, we propose a novel fabric of switches (FoS), which is recursively constructed on the flexible division of switch ports by means of a complete graph. The novel FoS benefits data center networks by flexible design space and double-exponential scalability, as well as small diameter and large bisection width. DPCell is constructed by inserting a dual-port server between any two adjacent switches in the novel FoS, which inherits good properties of the embedded FoS. Comparison with other architectures shows DPCell can achieve both large scalability and bisection width with a small diameter. Evaluation results show that DPCell demonstrates good performance in average routing delay and average load on servers under different degrees of network traffic.

中文翻译:

DPCell:在双端口服务器上构建新型数据中心网络架构

为了存储和处理大数据,构建大型数据中心以互连大量服务器,由于网络可扩展性和性能,这是一项具有挑战性的任务。在本文中,我们研究了双端口服务器上现有数据中心网络架构背后的基本共同原则。我们发现现有架构很难同时实现大的可扩展性和二分宽度。因此,我们提出了一种新颖的交换机结构(FoS),它是通过完整图在交换机端口的灵活划分上递归构建的。新型 FoS 通过灵活的设计空间和双指数可扩展性以及小直径和大对分宽度使数据中心网络受益。DPCell 是通过在新型 FoS 中任意两个相邻交换机之间插入一个双端口服务器来构建的,它继承了嵌入式 FoS 的良好特性。与其他架构的比较表明,DPCell 可以以小直径实现大的可扩展性和二等分宽度。评估结果表明,DPCell在不同网络流量下的平均路由延迟和服务器平均负载方面表现出良好的性能。
更新日期:2021-08-24
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