This article describes how to collect lcmd.log
, which is useful to troubleshoot hardware-related issues on QFX5e platform.
Note: The article is applicable to the QFX5e platform such as QFX5110 and QFX5210 that are running Junos OS 18.1R1 or later releases.
On QFX Series switch, lcmd.log
is located in the /var/log
directory of the host OS. However, on a QFX5e platform running Junos OS release 18.1R1 or later, the location of lcmd.log
has changed.
On QFX5e, the LXC (Linux container) design has been modified starting from Junos OS 18.1R1 release. Before this modification, the lcmd daemon was running on the host OS, but lcmd is spawned on LXC after the modification.
To collect lcmd.log
on QFX5e devices, which are running Junos OS 18.1R1 or later releases, use the following method:
-
Log in to the host shell. (Remember to log in to Junos OS as root user in advance.)
root@qfx5110> request app-engine host-shell
-
Check the dcpfe that is running, whether dcpfe0 or dcpfe1.
root@qfx5110:~# lxc-ls --active
dcpfe0
-
Copy lcmd.log
from dcpfe and put it in the /var/log/
directory on the host OS.
In case of dcpfe0:
root@qfx5110-node:~# scp 192.168.1.16:/var/log/lcmd.log /var/log/lcmd-dcpfe.log
In case of dcpfe1:
root@qfx5110-node:~# scp 192.168.1.17:/var/log/lcmd.log /var/log/lcmd-dcpfe.log
-
On Junos OS, copy lcmd-dcpfe.log
from the host OS to the /var/tmp
directory.
root@qfx5110> request app-engine file-copy from-jhost lcmd-dcpfe.log to-vjunos /var/tmp log
-
Collect /var/tmp/lcmd-dcpfe.log
on Junos OS and provide it to Support.
Note