h3c交换机环网配置.pdf

i 目 录 1 RRPP ················································································································································· 1-1 1.1 RRPP简介 ········································································································································· 1-1 1.1.1 RRPP产生背景 ······················································································································· 1-1 1.1.2 RRPP基本概念 ······················································································································· 1-1 1.1.3 RRPP协议报文 ······················································································································· 1-3 1.1.4 RRPP定时器 ··························································································································· 1-4 1.1.5 RRPP运行机制 ······················································································································· 1-4 1.1.6 RRPP典型组网 ······················································································································· 1-5 1.1.7 协议规范 ································································································································· 1-8 1.2 RRPP配置任务简介··························································································································· 1-8 1.3 创建RRPP域 ····································································································································· 1-9 1.4 配置控制VLAN ·································································································································· 1-9 1.5 配置保护VLAN ································································································································ 1-10 1.6 配置RRPP环 ··································································································································· 1-11 1.6.1 配置RRPP端口 ····················································································································· 1-11 1.6.2 配置RRPP节点 ····················································································································· 1-12 1.7 激活RRPP域 ··································································································································· 1-13 1.8 配置RRPP定时器 ···························································································································· 1-14 1.9 配置RRPP环组 ································································································································ 1-14 1.10 RRPP显示和维护 ·························································································································· 1-15 1.11 RRPP典型配置举例······················································································································· 1-16 1.11.1 单环配置举例 ······················································································································ 1-16 1.11.2 相交环配置举例 ·················································································································· 1-18 1.11.3 双边双归属环配置举例 ······································································································· 1-23 1.11.4 相交环负载分担配置举例 ···································································································· 1-32 1.12 常见配置错误举例 ························································································································· 1-41 1-1 1 RRPP 1.1 RRPP简介 RRPP（Rapid Ring Protection Protocol，快速环网保护协议）是一个专门应用于以太网环的链路 层协议。

当以太网环完整时它能够防止数据环路引起的广播风暴，而当以太网环上的链路断开时它 能迅速恢复环网上各个节点之间的通信链路，具备较高的收敛速度 1.1.1 RRPP产生背景 城域网和企业网大多采用环网来构建以提供高可靠性，但环上任意一个节点发生故障都会影响业务 环网采用的技术一般是 RPR 或以太网环RPR 需要专用硬件，成本较高；而以太网环技术日趋成 熟且成本低廉，城域网和企业网采用以太网环的趋势越来越明显 目前，解决二层网络环路问题的技术有生成树协议和 RRPP生成树协议应用比较成熟，但收敛时 间在秒级，且受网络拓扑影响；RRPP 是专门应用于以太网环的链路层协议，具有比生成树协议更 快的收敛速度，且收敛时间与环网上节点数无关，可应用于网络直径较大的网络 1.1.2 RRPP基本概念 如 图 1-1 所示，RRPP将以太网环上的设备划分为不同角色的节点，各节点之间通过收发和处理 RRPP协议报文来检测环网状态、传递环网拓扑变化信息 图1-1 RRPP 组网示意图 1. RRPP域 域 ID 是 RRPP 域的唯一标识，一个 RRPP 域由具有相同域 ID 和控制 VLAN、且相互连通的设备构 成。

一个 RRPP 域包含以下元素：主环、子环、控制 VLAN、主节点、传输节点、边缘节点、辅助 边缘节点、主端口、副端口、公共端口和边缘端口等 1-2 如 图 1-1 所示，Domain 1 就是一个RRPP域，它包含了两个RRPP环Ring 1 和Ring 2，RRPP环上 的所有节点属于这个RRPP域 2. RRPP环 一个环形连接的以太网拓扑称为一个 RRPP 环RRPP 环分为主环和子环，环的角色可以通过指定 RRPP 环的级别来设定：主环的级别为 0，子环的级别为 1一个 RRPP 域可以由单个 RRPP 环构 成，也可以由一个主环和若干个子环共同构成RRPP 环有以下两种状态： • • 健康状态：整个环网的物理链路是连通的 • • 断裂状态：环网中某处物理链路断开 如 图 1-1 所示，RRPP域Domain 1 中包含了两个RRPP环Ring 1 和Ring 2Ring 1 和Ring 2 的级 别分别配置为 0 和 1，则Ring 1 为主环，Ring 2 为子环 3. 控制VLAN和数据VLAN 控制 VLAN 和数据 VLAN 是相对而言的： • • 控制 VLAN：用来传输 RRPP 协议报文。

设备上接入 RRPP 环的端口都属于控制 VLAN，且 只有接入 RRPP 环的端口可加入此 VLAN 每个 RRPP 域都有两个控制 VLAN： 主控制 VLAN 和子控制 VLAN 主环的控制 VLAN简称主控制 VLAN， 子环的控制 VLAN简称子控制 VLAN 配置时只需指定主控制VLAN， 系统会自动将主控制VLAN的VLAN ID＋。