在城域网重构背景下的虚拟化家庭网关实现方式  

Implementation of Virtualized Residential Gateways in the Context of Metropolitan Area Network Re-architecture

作　　者：徐伟杰 戴佰琼 周振伟 余晓颖 XU Weijie;Dai Baiqiong;ZHOU Zhenwei;YU Xiaoying(l.Huaxin Consulting and Designing Institute Co.,Ltd.,Hangzhou 310051,China;Quzhou Branch of China Telecom Co.,Ltd.,Quzhou 324003,China)

机构地区：[1]华信咨询设计研究院有限公司,浙江杭州310051 [2]中国电信股份有限公司衢州分公司,浙江衢州324003

出　　处：《长江信息通信》2022年第11期210-213,共4页Changjiang Information & Communications

摘　　要：虚拟化家庭网关由实体网关和虚拟网关构成,两者通过逻辑用户连接互联。研究了城域网络重构背景下虚拟化家庭网关的实现方式,首先对传统家庭网关进行测试,证实某运营商现网的光猫大部分在配置成网桥模式并关闭DHCP功能后可以作为实体网关使用,然后提出可以从功能集中式独立服务器模式平滑演进到功能分布式模式的虚拟网关部署方案,最后使用VxLAN、EVPN VPLS技术跨IP网络承载逻辑用户连接以太帧,对现网影响小。此外,对基础服务、增值服务、隐私以及安全问题进行了探讨。The virtualized residential gateway is composed of both physical and virtual gateways,which are connected by logical subscriber link.The implementation of virtualized residential gateways was studied in the context of metropolitan area network re-architecture.Firstly,the existing optical modems of some telecom operators mostly can be used as physical gateways by setting up bridge mode and closing DHCP,which is proved by the testing result.Then,a proposed virtual gateway deployment strategy can smoothly evolve from function centralized independent server mode to function decentralized mode.Finally,VxLAN and EVPN VPLS are used to carry ethernet frames of logical subscriber link over the IP network,with small effect to existing network.Moreover,basic services,value-added services,privacy and security problems are discussed.

关 键 词：虚拟化家庭网关 城域网重构 NFV VxLAN EVPN VPLS 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]