LSN DCI EVPN VxLAN组网架构研究及实现

摘要

With the rise of virtualization technology,the architecture of traditional data center is disrupted.There exit a large number of interconnected needs among the data centers,such as data center active-active,data center redundancy,data synchronous backup,data migration,integrated data store,shared virtual resource pool,virtual machine drift and so on.Thereby,a large amount of east-west flow was generated,it is necessary to build a reliable,flexible,secure,and easy to deploy layer-2 and layer-3 network to meet the requirement of DCI (data center intercormection).The network architecture of EVPN VxLAN was analyzed,there hasn't been successful large-scale business case for implementation of multi-vendor DCI EVPN VxLAN networking.Combined with current status of LSN data center of Shanghai Telecom,the deployment of DCI via existing network was proposed and achieved.%虚拟化技术的兴起,打破了传统数据中心的架构,数据中心之间存在着大量互联场景,如异地双活、数据中心容灾、数据同步备份、数据迁移、集中式存储、共享虚拟化资源池、虚拟机漂移等,由此产生了大量的东西向流量,需要构建一个可靠、灵活、安全、易于部署的二、三层网络,以满足数据中心互联需求.研究了EVPN VxLAN组网架构,在业内尚无异构多厂商规模商用组网成功案例的情况下,结合中国电信股份有限公司上海分公司LSN数据中心现状,提出并实现了适用于现网的DCI组网.