H3C IS-IS for IPv6技术白皮书

IS-IS for IPv6技术白皮书
关键词：IS-IS，IS-ISv6，IPv4，IPv6
摘 要：IS-ISv6是从IS-IS扩展而来，用于支持IPv6网络的路由协议。本文介绍了IS-ISv6的扩
展及组网应用。
缩略语清单：
缩略语 英文全名 中文解释
CLNS Connectionless-mode Network Service 无连接网络服务
CONS Connection Oriented Network Service 面向连接网络服务
CLNP Connectionless-mode Network Protocol 无连接网络协议
CONP Connection Oriented Network Protocol 面向连接网络协议
IS-IS Intermediate System-to-Intermediate   System intra-domain routing information   exchange protocol
中间系统到中间系统的域内路由信息交换协议
IS-ISv6   Intermediate System to Intermediate   System Routing Protocol support for IPv6    中间系统-中间系统路由协议扩展支持IPv6
ES-IS  End System to Intermediate System Routing   Exchange Protocol   端系统-中间系统路由交换协议
IS Intermediate System 中间系统，例如路由器
ES   End System 终端系统，例如PC机
NLPID   Network Layer Protocol Identifier 网络层协议标识符


目 录
1 概述......................................................................................................................................3
2 IS-IS for IPv6技术实现...........................................................................................................3
2.1 IS-ISv6新增CLV...........................................................................................................3
2.1.1 IPv6可达性CLV（IPv6 Reachability CLV）.......................................................3
2.1.2 IPv6接口地址CLV..............................................................................................4
2.1.3 支持协议CLV.....................................................................................................5
2.2 IS-ISv6邻接关系..........................................................................................................5
3 典型组网应用.........................................................................................................................6
3.1 IS-ISv6在纯IPv6网络组网应用.....................................................................................6
3.2 IS-ISv6在IPv4和IPv6共存网络组网应用.......................................................................7
3.2.1 通过构建IPv4和IPv6共存骨干区域实现IPv4/IPv6网络共存组网方案..................7
3.2.2 通过GRE隧道技术实现IPv4/IPv6网络共存组网方案..........................................8
4 IS-IS for IPv6应用组网注意事项.............................................................................................9
5 参考文献..............................................................................................................................10