ICS 33.040.40 CCS L 78 YD 中 华 人 民 共 和 国 通 信 行 业 标 准 YD/T XXXXX—XXXX 基于SRv6的报文头压缩技术要求 Technical Specification for compressed SRv6 header （报批稿） XXXX - XX - XX发布 XXXX - XX - XX实施 中华人民共和国工业和信息化部 发 布 YD/T XXXXX—XXXX I目 次 前 言 ............................................................................................................................................................ III 1 范围 .................................................................................................................................................................. 1 2 规范性引用文件 .............................................................................................................................................. 1 3 术语及缩略语 .................................................................................................................................................. 1 3.1 术语 ............................................................................. 1 3.2 缩略语 ........................................................................... 2 4 SRv6头压缩总体要求 ..................................................................................................................................... 3 4.1 兼容SRv6 ........................................................................ 3 4.2 高效压缩 ......................................................................... 3 4.3 支持地址规划 ..................................................................... 3 4.4 兼容IPv6 ........................................................................ 4 4.5 支持SR-MPLS演进 ................................................................. 4 4.6 支持多种 SID压缩 ................................................................. 5 5 SRv6头压缩段标识结构 ................................................................................................................................. 5 5.1 SRv6段标识格式 .................................................................. 5 5.2 SRv6头压缩段标识格式 ............................................................ 6 5.3 G-SID与128bit SRv6 SID的关系 ................................................... 6 6 SRv6头压缩数据面转发要求 ......................................................................................................................... 7 6.1 新增flavor类型 .................................................................. 7 6.2 新增SI定义 ...................................................................... 8 6.3 编码规则及转发规则 ............................................................... 9 7 SRv6头压缩控制面要求 ............................................................................................................................... 10 7.1 IS-IS协议扩展要求 .............................................................. 10 7.2 BGP-LS协议扩展要求 ............................................................. 14 7.3 BGP SR Policy扩展要求 .......................................................... 16 7.4 PCEP SR Policy扩展要求 ......................................................... 18 8 SRv6头压缩跨域场景要求 ........................................................................................................................... 20 8.1 SRv6头压缩跨域方式 ............................................................. 20 8.2 SRv6头压缩跨域控制器组网 ....................................................... 24 9 SRv6头压缩可靠性要求 ............................................................................................................................... 26 9.1 SRv6头压缩可靠性概述 ........................................................... 26 9.2 SRv6头压缩本地保护 ............................................................. 26 9.3 SRv6头压缩端到端保护 ........................................................... 27 YD/T XXXXX—XXXX II10 SRv6头压缩OAM要求 ................................................................................................................................. 29 10.1 SRv6头压缩Ping的要求 ......................................................... 29 10