lldpd daemon doesn't start on redhat 7 #509

Hugoboubou9 · 2022-04-20T09:15:55Z

Hugoboubou9
Apr 20, 2022

I would like to start lldpd daemon to have acces at "lldpcli show neighbors" command.

But, as you can see, daemon doesn't start and i can't fix it. Could you help me please ? :D

This is what i have :

[root@toto]# systemctl start lldpd
Job for lldpd.service failed because the control process exited with error code. See "systemctl status lldpd.service" and "journalctl -xe" for details.

[root@toto]# systemctl status lldpd


● lldpd.service - LLDP daemon
   Loaded: loaded (/usr/lib/systemd/system/lldpd.service; enabled; vendor preset: disabled)
   Active: failed (Result: start-limit) since Wed 2022-04-20 10:20:30 CEST; 5s ago
     Docs: man:lldpd(8)
  Process: 32032 ExecStart=/usr/sbin/lldpd $DAEMON_ARGS $LLDPD_OPTIONS (code=exited, status=1/FAILURE)
 Main PID: 32032 (code=exited, status=1/FAILURE)

Apr 20 10:20:30 toto.com systemd[1]: Failed to start LLDP daemon.
Apr 20 10:20:30 toto.com systemd[1]: Unit lldpd.service entered failed state.
Apr 20 10:20:30 toto.com systemd[1]: lldpd.service failed.
Apr 20 10:20:30 toto.com systemd[1]: lldpd.service holdoff time over, scheduling restart.
Apr 20 10:20:30 toto.com systemd[1]: Stopped LLDP daemon.
Apr 20 10:20:30 toto.com systemd[1]: start request repeated too quickly for lldpd.service
Apr 20 10:20:30 toto.com systemd[1]: Failed to start LLDP daemon.
Apr 20 10:20:30 toto.com systemd[1]: Unit lldpd.service entered failed state.
Apr 20 10:20:30 toto.com systemd[1]: lldpd.service failed.

vincentbernat · 2022-04-20T09:27:38Z

vincentbernat
Apr 20, 2022
Maintainer

What's the output of journalctl -u lldpd?

0 replies

Hugoboubou9 · 2022-04-20T09:32:51Z

Hugoboubou9
Apr 20, 2022
Author

[root@toto etc]# journalctl -u lldpd
-- Logs begin at Thu 2022-04-07 07:46:32 CEST, end at Wed 2022-04-20 11:28:42 CEST. --
Apr 14 16:32:30 toto.com systemd[1]: Starting LLDP daemon...
Apr 14 16:32:31 toto.com systemd[1]: Started LLDP daemon.
Apr 14 16:32:31 toto.com lldpd[17812]: no libcap support, running monitor as root
Apr 14 16:32:31 toto.com lldpd[17814]: /etc/localtime copied to chroot
Apr 14 16:32:31 toto.com lldpd[17814]: protocol LLDP enabled
Apr 14 16:32:31 toto.com lldpd[17814]: protocol CDPv1 disabled
Apr 14 16:32:31 toto.com lldpd[17814]: protocol CDPv2 disabled
Apr 14 16:32:31 toto.com lldpd[17814]: protocol SONMP disabled
Apr 14 16:32:31 toto.com lldpd[17814]: protocol EDP disabled
Apr 14 16:32:31 toto.com lldpd[17814]: protocol FDP disabled
Apr 14 16:32:31 toto.com lldpd[17814]: libevent 2.0.21-stable initialized with epoll method
Apr 14 16:32:31 toto.com lldpd[17814]: cannot get ethtool link information with GLINKSETTINGS (requires 4.9+). 25G+ speeds may be missing in MAC/PHY TLVs
Apr 14 16:32:31 toto.com lldpcli[17813]: lldpd should resume operations
Apr 14 16:38:48 toto.com systemd[1]: Stopping LLDP daemon...
Apr 14 16:38:48 toto.com systemd[1]: Stopped LLDP daemon.
Apr 20 09:27:11 toto.com systemd[1]: Starting LLDP daemon...
Apr 20 09:27:11 toto.com lldpd[26895]: unable to create control socket because it already exists
Apr 20 09:27:11 toto.com lldpd[26895]: check if another instance is running
Apr 20 09:27:11 toto.com lldpd[26895]: another instance is running, please stop it
Apr 20 09:27:11 toto.com lldpd[26895]: giving up
Apr 20 09:27:11 toto.com systemd[1]: lldpd.service: main process exited, code=exited, status=1/FAILURE
Apr 20 09:27:11 toto.com systemd[1]: Failed to start LLDP daemon.
Apr 20 09:27:11 toto.com systemd[1]: Unit lldpd.service entered failed state.
Apr 20 09:27:11 toto.com systemd[1]: lldpd.service failed.
Apr 20 09:27:11 toto.com systemd[1]: lldpd.service holdoff time over, scheduling restart.
Apr 20 09:27:11 toto.com systemd[1]: Stopped LLDP daemon.
Apr 20 09:27:11 toto.com systemd[1]: Starting LLDP daemon...
Apr 20 09:27:11 toto.com lldpd[26903]: unable to create control socket because it already exists
Apr 20 09:27:11 toto.com lldpd[26903]: check if another instance is running
Apr 20 09:27:11 toto.com lldpd[26903]: another instance is running, please stop it
Apr 20 09:27:11 toto.com lldpd[26903]: giving up
Apr 20 09:27:11 toto.com systemd[1]: lldpd.service: main process exited, code=exited, status=1/FAILURE
Apr 20 09:27:11 toto.com systemd[1]: Failed to start LLDP daemon.
Apr 20 09:27:11 toto.com systemd[1]: Unit lldpd.service entered failed state.
Apr 20 09:27:11 toto.com systemd[1]: lldpd.service failed.
Apr 20 09:27:11 toto.com systemd[1]: lldpd.service holdoff time over, scheduling restart.
Apr 20 09:27:11 toto.com systemd[1]: Stopped LLDP daemon.
Apr 20 09:27:11 toto.com systemd[1]: Starting LLDP daemon...
Apr 20 09:27:11 toto.com lldpd[26907]: unable to create control socket because it already exists
Apr 20 09:27:11 toto.com lldpd[26907]: check if another instance is running
Apr 20 09:27:11 toto.com lldpd[26907]: another instance is running, please stop it
Apr 20 09:27:11 toto.com lldpd[26907]: giving up
Apr 20 09:27:11toto.com systemd[1]: lldpd.service: main process exited, code=exited, status=1/FAILURE
Apr 20 09:27:11 toto.com systemd[1]: Failed to start LLDP daemo 10000 n.
Apr 20 09:27:11 toto.com systemd[1]: Unit lldpd.service entered failed state.
Apr 20 09:27:11 toto.com systemd[1]: lldpd.service failed.
Apr 20 09:27:11 toto.com systemd[1]: lldpd.service holdoff time over, scheduling restart.
Apr 20 09:27:11 toto.com systemd[1]: Stopped LLDP daemon.
Apr 20 09:27:11 toto.com systemd[1]: Starting LLDP daemon...
Apr 20 09:27:11 toto.com lldpd[26911]: unable to create control socket because it already exists
Apr 20 09:27:11 toto.com lldpd[26911]: check if another instance is running
Apr 20 09:27:11 toto.com lldpd[26911]: another instance is running, please stop it
Apr 20 09:27:11 toto.com lldpd[26911]: giving up

1 reply

vincentbernat Apr 20, 2022
Maintainer

What's the output of ps auxww | grep lldpd? Which version are you running?

Hugoboubou9 · 2022-04-20T11:41:51Z

Hugoboubou9
Apr 20, 2022
Author

[root@toto etc]# ps auxww | grep lldpd
root 7055 0.0 0.0 118852 2324 ? Ss Apr14 0:00 lldpd
lldpd 7057 0.0 0.0 116776 1836 ? S Apr14 0:02 lldpd
root 19210 0.0 0.0 112816 972 pts/0 S+ 13:39 0:00 grep --color=auto lldpd

I installed this package : lldpd-1.0.4-1.el7.x86_64.rpm on redhat 7.9

3 replies

vincentbernat Apr 20, 2022
Maintainer

So, it's running. Maybe started manually since it's not tracked by systemd.

Hugoboubou9 Apr 20, 2022
Author

manually ? that is to say ? ( sorry i'm a beginner )

vincentbernat Apr 20, 2022
Maintainer

kill 7055, then start it again using systemctl.

Hugoboubou9 · 2022-04-20T13:14:20Z

Hugoboubou9
Apr 20, 2022
Author

Ok ! it works :D a lot of thx !!

[root@toto ~]# systemctl status lldpd
● lldpd.service - LLDP daemon
Loaded: loaded (/usr/lib/systemd/system/lldpd.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2022-04-20 15:08:21 CEST; 10s ago
Docs: man:lldpd(8)
Main PID: 27847 (lldpd)
CGroup: /system.slice/lldpd.service
├─27847 /usr/sbin/lldpd
└─27849 /usr/sbin/lldpd

Apr 20 15:08:21 toto.com systemd[1]: Started LLDP daemon.
Apr 20 15:08:21 toto.com lldpd[27847]: no libcap support, running monitor as root
Apr 20 15:08:21 toto.com lldpd[27849]: protocol LLDP enabled
Apr 20 15:08:21 toto.com lldpd[27849]: protocol CDPv1 disabled
Apr 20 15:08:21 toto.com lldpd[27849]: protocol CDPv2 disabled
Apr 20 15:08:21 toto.com lldpd[27849]: protocol SONMP disabled
Apr 20 15:08:21 toto.com lldpd[27849]: protocol EDP disabled
Apr 20 15:08:21 toto.com lldpd[27849]: protocol FDP disabled
Apr 20 15:08:21 toto.com lldpd[27849]: libevent 2.0.21-stable initialized with epoll method
Apr 20 15:08:21 toto.com lldpd[27849]: cannot get ethtool link information with GLINKSETTINGS (requires 4.9+). 25G+ speeds may be missing in MAC/PHY TLVs

The last line is problematic to achieve my goal but is a nice start :D

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