Ubuntu 24 LLDP使用方法 - Knowlege Database

概要
導入手順
- インストール
- 設定

概要†

Ubuntu24にてlldpdを使用する方法。

↑

導入手順†

↑

インストール†

パッケージ導入
```
# apt install lldpd
```

サービスの自動起動を設定する

# systemctl enable lldpd

# systemctl status lldpd  

● lldpd.service - LLDP daemon
    Loaded: loaded (/usr/lib/systemd/system/lldpd.service; enabled; preset: enabled)
    Active: active (running) since Sat 2025-07-12 21:51:40 JST; 6min ago
      Docs: man:lldpd(8)
  Main PID: 2284 (lldpd)
     Tasks: 2 (limit: 18707)
    Memory: 2.0M (peak: 3.3M)
       CPU: 19ms
    CGroup: /system.slice/lldpd.service
            ├─2284 "lldpd: monitor. "
            └─2287 "lldpd: connected to Catalyst2960L-48TS-LL.asabiya.net."

 7月 12 21:51:40 proc-srv01 systemd[1]: Started lldpd.service - LLDP daemon.
 7月 12 21:51:40 proc-srv01 lldpd[2287]: /etc/localtime copied to chroot
 7月 12 21:51:40 proc-srv01 lldpd[2287]: protocol LLDP enabled
 7月 12 21:51:40 proc-srv01 lldpd[2287]: protocol CDPv1 disabled
 7月 12 21:51:40 proc-srv01 lldpd[2287]: protocol CDPv2 disabled
 7月 12 21:51:40 proc-srv01 lldpd[2287]: protocol SONMP disabled
 7月 12 21:51:40 proc-srv01 lldpd[2287]: protocol EDP disabled
 7月 12 21:51:40 proc-srv01 lldpd[2287]: protocol FDP disabled
 7月 12 21:51:40 proc-srv01 lldpd[2287]: libevent 2.1.12-stable initialized with epoll method
 7月 12 21:51:40 proc-srv01 lldpcli[2285]: lldpd should resume operations

サービスを起動する
```
# systemctl start lldpd
```

↑

設定†

lldpdは特に設定は不要です。

lldpd動作状況

# lldpcli show statistics

-------------------------------------------------------------------------------
LLDP statistics:
-------------------------------------------------------------------------------
Interface:    enp2s0f0
 Transmitted:  24
 Received:     24
 Discarded:    0
 Unrecognized: 0
 Ageout:       0
 Inserted:     1
 Deleted:      0
-------------------------------------------------------------------------------
Interface:    enp2s0f1
 Transmitted:  0
 Received:     0
 Discarded:    0
 Unrecognized: 0
 Ageout:       0
 Inserted:     0
 Deleted:      0
-------------------------------------------------------------------------------
Interface:    enp2s0f2
 Transmitted:  0
 Received:     0
 Discarded:    0
 Unrecognized: 0
 Ageout:       0
 Inserted:     0
 Deleted:      0
-------------------------------------------------------------------------------
Interface:    enp2s0f3
 Transmitted:  0
 Received:     0
 Discarded:    0
 Unrecognized: 0
 Ageout:       0
 Inserted:     0
 Deleted:      0
-------------------------------------------------------------------------------
Interface:    eno1
 Transmitted:  0
 Received:     0
 Discarded:    0
 Unrecognized: 0
 Ageout:       0
 Inserted:     0
 Deleted:      0
-------------------------------------------------------------------------------

隣接機器情報の表示

# lldpcli show neighbors

-------------------------------------------------------------------------------
LLDP neighbors:
-------------------------------------------------------------------------------
Interface:    enp2s0f0, via: LLDP, RID: 1, Time: 0 day, 00:12:04
 Chassis:     
   ChassisID:    mac 00:b8:b3:ac:b6:00
   SysName:      Catalyst2960L-48TS-LL.asabiya.net
   SysDescr:     Cisco IOS Software, C2960L Software (C2960L-UNIVERSALK9-M), Version 15.2(6)E, RELEASE SOFTWARE (fc4)
                 Technical Support: http://www.cisco.com/techsupport
                 Copyright (c) 1986-2017 by Cisco Systems, Inc.
                 Compiled Sat 05-Aug-17 12:46 by prod_rel_team
   MgmtIP:       192.168.1.5
   Capability:   Bridge, on
   Capability:   Router, off
 Port:        
   PortID:       ifname Gi0/29
   PortDescr:    GigabitEthernet0/29
   TTL:          120
-------------------------------------------------------------------------------