01-04 MPLS L2VPN故障处理

2020-04-14 16:46

VRP

故障处理 VPN篇

4 MPLS L2VPN故障处理 ............................................................................................................. 4-1

4.1 MPLS L2VPN简介 ...................................................................................................................................... 4-2 4.1.1 MPLS L2VPN概述 ............................................................................................................................. 4-2 4.1.2 CCC方式MPLS L2VPN .................................................................................................................... 4-3 4.1.3 SVC方式MPLS L2VPN .................................................................................................................... 4-3 4.1.4 Martini方式MPLS L2VPN ................................................................................................................ 4-4 4.1.5 PWE3方式MPLS L2VPN ................................................................................................................. 4-5 4.1.6 Kompella方式MPLS L2VPN ............................................................................................................ 4-5 4.1.7 MPLS L2VPN异种介质互通 ............................................................................................................. 4-6 4.2 L2VPN故障处理 ......................................................................................................................................... 4-7 4.2.1 典型组网环境 ..................................................................................................................................... 4-8 4.2.2 配置注意事项 ................................................................................................................................... 4-10 4.2.3 故障诊断流程 ................................................................................................................................... 4-12 4.2.4 故障处理步骤 ................................................................................................................................... 4-14 4.3 故障处理案例 ............................................................................................................................................ 4-16 4.3.1 ATM子接口建立PW，VC Type为Unsupport .............................................................................. 4-17 4.3.2 静态PW不能与其它PW进行交换 ............................................................................................... 4-19 4.3.3 配置交换PW，Switch-L2VC的状态为Down .............................................................................. 4-21 4.3.4 执行reset pw命令不能改变PW属性 ........................................................................................... 4-22 4.3.5 VC状态Up，但是PPP会话不能Up ............................................................................................. 4-26 4.3.6 改变链路层协议后，接口下的VC消失了 ................................................................................... 4-27 4.3.7 Session和AC的状态为Up，但VC不能Up ................................................................................ 4-29 4.3.8 Ethernet与ATM互连，VC状态Up，但CE-CE间ping不通 .................................................... 4-33 4.3.9 CE使用VLAN接入不能互通......................................................................................................... 4-34 4.3.10 Static-VC Up，但CE不能互访 ..................................................................................................... 4-35 4.3.11 AC Up，VC状态为Down ............................................................................................................. 4-36 4.3.12 L2VPN两端CE间大报文丢失 ..................................................................................................... 4-37 4.3.13 RIP-1作为L2VPN骨干网 IGP， PE之间的MPLS LDP会话建立不成功 ............................ 4-38 4.4 FAQ ............................................................................................................................................................. 4-40 4.5 故障诊断工具 ............................................................................................................................................ 4-43

文档版本 04 (2007-12-25) 华为技术有限公司 i

VRP

故障处理 VPN篇

4.5.1 display命令 ....................................................................................................................................... 4-43

ii 华为技术有限公司文档版本 04 (2007-12-25)

VRP

故障处理 VPN篇

插图目录

图4-1 MPLS L2VPN组网示意图 ..................................................................................................................... 4-2 图4-2 MPLS L2VPN标签栈处理 ..................................................................................................................... 4-3 图4-3 Martini的信令过程................................................................................................................................. 4-4 图4-4 PWE3的信令过程 .................................................................................................................................. 4-5 图4-5 本地连接组网图..................................................................................................................................... 4-8 图4-6 远端连接组网图..................................................................................................................................... 4-8 图4-7 多跳连接组网图..................................................................................................................................... 4-9 图4-8 跨域组网图 .......................................................................................................................................... 4-10 图4-9 MPLS L2VPN远程连接故障诊断流程图 ........................................................................................... 4-12 图4-10 MPLS L2VPN本地连接故障诊断流程图 ......................................................................................... 4-14 图4-11 SVC远程连接标签示意图 ................................................................................................................. 4-15 图4-12 CCC远程连接标签示意图 ................................................................................................................. 4-15 图4-13 静态PW与动态PW交换组网图 ..................................................................................................... 4-19 图4-14 Switch-L2VC的状态为Down故障组网图 ....................................................................................... 4-21 图4-15 PPP会话不能Up的简单组网 ........................................................................................................... 4-26 图4-16 组网图 ................................................................................................................................................ 4-29 图4-17 Ethernet与ATM互连的L2VPN组网 .............................................................................................. 4-33 图4-18 IP地址正确的配置方法 ..................................................................................................................... 4-34 图4-19 RIP作为L2VPN骨干网 IGP的简单组网 ....................................................................................... 4-38 图4-20 CE和PE上的接口类型为DCE和DTE时的组网方案 ................................................................. 4-41

文档版本 04 (2007-12-25) 华为技术有限公司 iii

VRP

故障处理 VPN篇

表格目录

表4-1 display mpls l2vc interface命令输出信息描述 .................................................................................... 4-44 表4-2 display tunnel-info命令输出信息描述 ................................................................................................ 4-46 表4-3 display bgp l2vpn命令输出信息描述 .................................................................................................. 4-47 表4-4 display mpls ldp lsp命令输出信息描述 ............................................................................................... 4-47 表4-5 display mpls ldp命令输出信息描述 .................................................................................................... 4-48 表4-6 display mpls l2vpn connection命令输出信息描述 .............................................................................. 4-49 表4-7 display mpls l2vpn connection interface命令输出的远程连接信息描述 ........................................... 4-51 表4-8 display mpls l2vpn connection interface命令输出的本地连接信息描述 ........................................... 4-52 表4-9 display mpls l2vpn connection summary命令输出信息描述 .............................................................. 4-52 表4-10 display mpls l2vpn命令输出信息描述 .............................................................................................. 4-53 表4-11 display mpls l2vpn vpn-instance-name命令输出信息描述 ............................................................... 4-54 表4-12 display mpls l2vpn vpn-name local-ce命令输出信息描述 ................................................................ 4-54 表4-13 display mpls l2vpn vpn-name remote-ce命令输出信息描述 ............................................................. 4-55

文档版本 04 (2007-12-25) 华为技术有限公司 v

共8页:

01-04 MPLS L2VPN故障处理.doc 将本文的Word文档下载到电脑下载失败或者文档不完整，请联系客服人员解决！

下载这篇word文档