EX交换机配置手册v1.1

EX3200/4200交换机

命令行配置指导手册

Version 1.0

目 录

1

交换机基础知识 ........................................................................................................................................... 6 1.1 认识JUNIPER交换机 ............................................................................................................................................ 6 1.2 JUNOS操作系统基础 ........................................................................................................................................... 8 1.2.1 交换机配置模式 ......................................................................................................................................... 8 1.2.2 交换机配置结构 ......................................................................................................................................... 9 1.2.3 TAB和空格键的使用 ................................................................................................................................ 12 1.2.4 用户模式和配置模式show的区别 ......................................................................................................... 13 1.2.5 如何将配置转换成set命令 .................................................................................................................... 16 1.2.6 commit和rollback .................................................................................................................................... 16 1.3 EX交换机命令菜单结构 .................................................................................................................................. 18 2

操作指导 .................................................................................................................................................... 30 2.1 通过CONSOLE线连接交换机 ............................................................................................................................. 30 2.2 SYSTEM系统参数配置 ........................................................................................................................................ 31 2.2.1 设置root密码 .......................................................................................................................................... 32 2.2.2 设置主机名 ............................................................................................................................................... 32 2.2.3 设置DNS服务器 ...................................................................................................................................... 32 2.2.4 设置日期时间 ........................................................................................................................................... 32 2.2.5 设置NTP服务器 ....................................................................................................................................... 33 2.2.6 开启远程Telnet登陆服务 ....................................................................................................................... 33 2.2.7 开启远程Ftp服务 .................................................................................................................................... 33 2.2.8 开启远程ssh登陆 .................................................................................................................................... 34 2.2.9 开启远程http登陆服务 .......................................................................................................................... 34 2.2.10 添加/删除用户 ........................................................................................................................................ 34

2.2.10.1 添加用户 ............................................................................................................................................................ 34 2.2.10.2 修改用户类别 .................................................................................................................................................... 35 2.2.10.3 修改用户密码 .................................................................................................................................................... 35 2.2.10.4 删除用户 ............................................................................................................................................................ 35

2.2.11 用户权限设置 ......................................................................................................................................... 35 2.3 VLAN配置 ......................................................................................................................................................... 36 2.3.1 VLAN配置步骤 ......................................................................................................................................... 37 2.3.2 VLAN配置规范要求 ................................................................................................................................. 37 2.3.3 添加VLAN ................................................................................................................................................. 37 2.3.4 修改端口VLAN ......................................................................................................................................... 39 2.3.5 删除VLAN ................................................................................................................................................. 39 2.3.6 配置VLAN网关IP .................................................................................................................................... 40

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2.4 TRUNK配置 ......................................................................................................................................................... 40 2.4.1 Trunk配置步骤 ......................................................................................................................................... 40 2.4.2 如何设置Trunk ......................................................................................................................................... 40 2.4.3 允许/禁止VLAN通过Trunk ..................................................................................................................... 40 2.5 端口配置 ........................................................................................................................................................... 41 2.5.1 端口配置规范要求 ................................................................................................................................... 41 2.5.2 修改端口速率 ........................................................................................................................................... 41 2.5.3 修改端口工作模式 ................................................................................................................................... 41 2.5.4 修改端口为L3模式 ................................................................................................................................. 42 2.5.5 修改端口为L2模式 ................................................................................................................................. 42 2.6 生成树配置 ....................................................................................................................................................... 42 2.6.1 STP配置实例 ............................................................................................................................................ 43 2.6.2 RSTP配置实例 .......................................................................................................................................... 44 2.6.3 MSTP配置 实例 ........................................................................................................................................ 47 2.7 端口捆绑 ........................................................................................................................................................... 50 2.7.1 端口捆绑步骤 ........................................................................................................................................... 50 2.7.2 L2端口捆绑 .............................................................................................................................................. 51 2.7.3 L3端口捆绑 .............................................................................................................................................. 51 2.8 ECMP负载均衡配置 ......................................................................................................................................... 52 2.9 路由协议配置 ................................................................................................................................................... 53 2.9.1 静态路由配置 ........................................................................................................................................... 53

2.9.1.1 添加静态路由 ...................................................................................................................................................... 53 2.9.1.2 删除静态路由 ...................................................................................................................................................... 53 2.9.1.3 调整静态路由优先值 .......................................................................................................................................... 53 2.9.1.4 设置备份静态路由 .............................................................................................................................................. 53 2.9.1.5 指定静态路由下一跳端口 .................................................................................................................................. 54

2.9.2 OSPF配置 .................................................................................................................................................. 54

2.9.2.1 OSPF配置步骤 ..................................................................................................................................................... 54 2.9.2.2 OSPF配置实例 ..................................................................................................................................................... 57 2.9.2.3 OSPF路由过滤 ..................................................................................................................................................... 59

2.10 端口镜像 ......................................................................................................................................................... 59 2.10.1 端口输入输出流量镜像 ......................................................................................................................... 60 2.10.2 带过滤条件的端口镜像 ......................................................................................................................... 60 2.11 端口MAC地址限制 ....................................................................................................................................... 61 2.12 端口广播风暴控制 ......................................................................................................................................... 61 2.13 VRRP配置 ....................................................................................................................................................... 61

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2.13.1 如何配置VRRP ....................................................................................................................................... 61 2.13.2 如何检查VRRP状态............................................................................................................................... 62 2.13.3 如何切换VRRP ....................................................................................................................................... 62 2.14 BFD配置.......................................................................................................................................................... 63 2.14.1 OSPF中配置BFD .................................................................................................................................... 63 2.14.2 静态路由中配置BFD .............................................................................................................................. 63 2.15 交换机FIREWALL限制功能 .............................................................................................................................. 64 2.15.1 限制IP地 ................................................................................................................................................ 64 2.15.2 限制MAC地址 ....................................................................................................................................... 64 2.16 VIRTUAL-CHASSIS设置 ........................................................................................................................................ 65 2.17 VC知识 ............................................................................................................................................................ 65 2.17.1 如何建立VC组 ....................................................................................................................................... 66 2.17.2 如何扩充VC组交换机 ........................................................................................................................... 67 2.17.3 如何利用uplink链路组成VC ............................................................................................................... 68 2.17.4 如何对VC组进行切换 ........................................................................................................................... 70 2.18 SNMP配置 ...................................................................................................................................................... 70 2.19 SYSLOG配置 ...................................................................................................................................................... 71 2.20 MULTI-VRF配置.................................................................................................................................................. 72 2.21 MULTI-VRF OSPF配置 ........................................................................................................................................ 73 3

交换机维护操作 ......................................................................................................................................... 73 3.1 交换机启动和关闭 ........................................................................................................................................... 74 3.1.1 重新启动 ................................................................................................................................................... 74 3.1.2 关闭 ........................................................................................................................................................... 74 3.2 配置备份和恢复 ............................................................................................................................................... 74 3.2.1 配置备份 ................................................................................................................................................... 74 3.2.2 配置恢复 ................................................................................................................................................... 75 3.3 如何升级交换机OS .......................................................................................................................................... 76 3.4 如何恢复出厂设置 ........................................................................................................................................... 76 3.5 密码恢复 ........................................................................................................................................................... 76 3.6 日常维护命令 ................................................................................................................................................... 78 3.6.1 查看序列号show chassis hardware ..................................................................................................... 78 3.6.2 查看硬件show chassis hardware ......................................................................................................... 78 3.6.3 查看软件版本show version ................................................................................................................... 78 3.6.4 查看CPU show chassis routing-engine ............................................................................................... 78 3.6.5 ping命令 ................................................................................................................................................... 78

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3.6.6 查看设备告警信息 show chassis alarms .............................................................................................. 78 3.6.7 查看详细的硬件温度及状态信息 show chassis environment ............................................................ 78 3.6.8 查看接口VRRP状态信息show vrrp ...................................................................................................... 78 3.6.9 收集CASE需要的信息request support information ............................................................................... 79 4

如何获取技术支持 ..................................................................................................................................... 79 4.1 技术资料获取 ................................................................................................................................................... 79 4.2 EX交换机故障技术支持流程 .......................................................................................................................... 79 4.2.1 故障申报流程 ........................................................................................................................................... 79

4.2.1.1 传真/电话申报..................................................................................................................................................... 80 4.2.1.2 邮件申报 .............................................................................................................................................................. 80 4.2.1.3 网上申报 .............................................................................................................................................................. 80

4.2.2 CASE客户网上处理指南 .......................................................................................................................... 80

4.2.2.1 网上登录 .............................................................................................................................................................. 80 4.2.2.2 更改密码 .............................................................................................................................................................. 80 4.2.2.3 新建CASE ............................................................................................................................................................. 81 4.2.2.4 更新CASE信息/上传附件................................................................................................................................... 82 4.2.2.5 更改CASE故障信息 ............................................................................................................................................ 84 4.2.2.6 重开CASE ............................................................................................................................................................. 85 4.2.2.7 CASE统计 ............................................................................................................................................................. 86

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