数据中心网络架构和协议演进分析
2021-06-28 作者:魏月华,陈晓,张征 阅读量:
数据中心网络架构和协议演进分析 - 中兴通讯技术
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数据中心网络架构和协议演进分析

作者:魏月华,陈晓,张征 阅读量:1119

数据中心网络架构和协议演进分析

魏月华,陈晓,张征
(中兴通讯股份有限公司,中国 深圳 518057)

摘要:受计算规模的驱动,数据中心物理拓扑从接入-汇聚-核心三级网络架构演进到基于Clos的Spine-and-Leaf架构。计算资源的基本单位经历了物理服务器、虚拟机、容器化3个阶段。数据中心底层(underlay)连接协议逐步从以二层协议为主演进到以IP路由协议为主。但传统路由协议存在可扩展性、拓扑可见性、自动化部署能力等诸多问题。结合链路状态和距离矢量的胖树路由协议,解决了超大规模数据中心部署的痛点问题,有望逐渐成为超大规模数据中心底层网络的主流技术。  
关键词:Spine-and-leaf;路由;数据中心  


Data Center Infrastructure and Underlay Protocol Evolution

WEI Yuehua, CHEN Xiao, ZHANG Zheng
(ZTE Corporation, Shenzhen 518057, China)

Abstract: Driven by the scale of computing, the physical topology of the data center has evolved from an access-aggregation-core three-level network architecture to a Clos-based Spine-and-Leaf architecture. The basic unit of computing resources has gone through three stages: physical server, virtual machine, and containerization. The underlay connection protocol of the data center has gradually evolved from layer 2 protocol to IP routing protocol. However, traditional routing protocols have many problems, such as scalability, topology visibility, and automated provision capabilities. The fat-tree routing protocol, which combines link state and distance vector, solves the pain points of ultra-large-scale data center deployment, and is expected to gradually become the mainstream technology for ultra-large-scale data center underlay networks.
Keywords: Spine-and-Leaf; routing; data center

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