第 31 章 使用 LLDP 来调试网络配置问题

流程

1. 使用以下内容创建 ~/enable-LLDP-enp1s0.yml 文件：

   interfaces:
     - name: enp1s0
       type: ethernet
       lldp:
         enabled: true

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2. 使用 ~/enable-LLDP-enp1s0.yml 文件来在接口 enp1s0 上启用 LLDP：

   # nmstatectl apply ~/enable-LLDP-enp1s0.yml

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3. 显示 LLDP 信息：

   # nmstatectl show enp1s0
   - name: enp1s0
     type: ethernet
     state: up
     ipv4:
       enabled: false
       dhcp: false
     ipv6:
       enabled: false
       autoconf: false
       dhcp: false
     lldp:
       enabled: true
       neighbors:
       - - type: 5
           system-name: Summit300-48
         - type: 6
           system-description: Summit300-48 - Version 7.4e.1 (Build 5)
             05/27/05 04:53:11
         - type: 7
           system-capabilities:
           - MAC Bridge component
           - Router
         - type: 1
           _description: MAC address
           chassis-id: 00:01:30:F9:AD:A0
           chassis-id-type: 4
         - type: 2
           _description: Interface name
           port-id: 1/1
           port-id-type: 5
         - type: 127
           ieee-802-1-vlans:
           - name: v2-0488-03-0505
             vid: 488
           oui: 00:80:c2
           subtype: 3
         - type: 127
           ieee-802-3-mac-phy-conf:
             autoneg: true
             operational-mau-type: 16
             pmd-autoneg-cap: 27648
           oui: 00:12:0f
           subtype: 1
         - type: 127
           ieee-802-1-ppvids:
           - 0
           oui: 00:80:c2
           subtype: 2
         - type: 8
           management-addresses:
           - address: 00:01:30:F9:AD:A0
             address-subtype: MAC
             interface-number: 1001
             interface-number-subtype: 2
         - type: 127
           ieee-802-3-max-frame-size: 1522
           oui: 00:12:0f
           subtype: 4
     mac-address: 82:75:BE:6F:8C:7A
     mtu: 1500

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4. 验证输出，以确保设置与您预期的配置匹配。例如，连接到交换机的接口的 LLDP 信息显示此主机连接的交换机端口使用 VLAN ID 448:

   - type: 127
           ieee-802-1-vlans:
           - name: v2-0488-03-0505
             vid: 488

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   如果 enp1s0 接口的网络配置使用不同的 VLAN ID，请相应地进行修改。