大规模网络向IPv6单栈演进的技术方案

（1. 中国电信集团有限公司，中国 北京 102209；2. 清华大学, 中国 北京 100084；3. 下一代互联网国家工程中心，中国 北京100176；4. 中国电信股份有限公司重庆分公司，中国 重庆 401121）

摘要：中国互联网全面进入了互联网协议第4版/互联网协议第6版（IPv4/IPv6）双栈运行阶段，未来如何向IPv6单栈网络演进是新的技术和产业挑战。结合中国的最新政策要求，在分析已有IPv6单栈过渡技术的基础上，提出了面向大规模网络的多域纯IPv6网络的总体框架、演进路线和相关方案，并给出发展IPv6单栈网络的策略建议。  

关键词：IPv6单栈；全局映射规则；多域；SRv6；BGP4+  

Technical Solution of Transition to Large-Scale IPv6-Only Networks

XIE Chongfeng1, LI Xing2, LI Zhen3, YU Yongzhi4

(1. China Telecom Research Institute, Beijing 102209, China; 2. Tsinghua University, Beijing 100084, China; 3. China Future Internet Engineering Center, Beijing 100176, China; 4. China Telecom Chongqing Branch, Chongqing 401121, China)

Abstract: With the Internet in China fully entering the Internet protocol version 4/Internet protocol version 6 (IPv4/IPv6) dual-stack operation stage, how to evolve into IPv6 single-stack network in the future is a new technical and industrial challenge. Combined with the latest policy requirements of China and based on analyzing the existing IPv6 single-stack transition technology, the overall framework, evolution route, and related solutions of multi-domain IPv6-only network for large-scale networks are put forward, and the strategic suggestions for the development of IPv6 single-stack networks are proposed.   

Keywords: IPv6-only network; global mapping rule; multi-domain; SRv6; BGP4+