GB/T 44887.5-2024 IPv6演进技术要求 第5部分：基于IPv6段路由（SRv6）的虚拟专用网（VPN）

ICS 33.040.40
CCS L 78
中华人民共和国国家标准
IPv6 演进技术要求　第5 部分：基于IPv6 段路由（SRv6）的虚拟专用网（VPN）
IPv6 evolution technical requirements—
Part 5：SRv6﹘based VPN
GB/T 44887.5—2024
2024-11-28 发布2025-03-01 实施
国家市场监督管理总局
国家标准化管理委员会发 布

目　　次
前言 ····································································································· Ⅲ
引言 ····································································································· Ⅳ
1 范围 ·································································································· 1
2 规范性引用文件 ······················································································ 1
3 术语和定义 ··························································································· 1
4 缩略语 ································································································ 1
5 基于SRv6 的VPN 网络技术架构 ····································································· 2
6 SRv6 服务TLV 技术要求 ············································································· 3
6.1 SRv6 服务TLV ·················································································· 3
6.2 SRv6 服务子TLV ················································································ 4
6.3 SRv6 SID 信息子TLV ··········································································· 4
6.4 SRv6 服务数据Sub﹘Sub﹘TLV ···································································· 5
6.5 SRv6 SID 结构Sub﹘Sub﹘TLV ···································································· 5
7 基于SRv6 VPN 网络的三层服务 ····································································· 6
7.1 三层服务实现机制 ··············································································· 6
7.2 IPv4 VPN 服务 ··················································································· 7
7.3 IPv6 VPN 服务 ··················································································· 7
7.4 全球可寻址IPv4 服务 ············································································ 7
7.5 全球可寻址IPv6 服务 ············································································ 8
8 基于SRv6 VPN 网络的二层服务 ····································································· 8
8.1 二层服务实现机制 ··············································································· 8
8.2 以太网自动发现路由 ············································································· 9
8.3 MAC/IP 通告路由 ··············································································· 9
8.4 泛组播以太网标签路由 ········································································· 10
8.5 以太网分段路由 ················································································ 11
8.6 IP 前缀路由 ····················································································· 11
8.7 EVPN 组播路由 ·········