Description

QFX reported below messages when having a commit operation. This is a harmless message which you can ignore on QFX platform since it does not require JAM plugin.

JAM: JAM plugin xxx not needed on this platform - not loading

Symptoms

QFX reported unknown syslog message below when having a commit operation.

Aug 21 11:29:55  Switch cosd[15063]: JAM: JAM plugin /usr/sbin/jam/libjam_mpc2e3eng_cosd.so not needed on this platform - not loading
Aug 21 11:29:55  Switch cosd[15063]: JAM: JAM plugin /usr/sbin/jam/libjam_stout_cosd.so not needed on this platform - not loading
Aug 21 11:29:55  Switch cosd[15063]: JAM: JAM plugin /usr/sbin/jam/libjam_summit_cosd.so not needed on this platform - not loading
Aug 21 11:29:55  Switch cosd[15063]: JAM: JAM plugin /usr/sbin/jam/libjam_lc2101_cosd.so not needed on this platform - not loading
Aug 21 11:29:55  Switch cosd[15063]: JAM: JAM plugin /usr/sbin/jam/libjam_ferrari_cosd.so not needed on this platform - not loading
Aug 21 11:29:55  Switch cosd[15063]: JAM: JAM plugin /usr/sbin/jam/libjam_redbull_cosd.so not needed on this platform - not loading
Aug 21 11:29:55  Switch cosd[15063]: JAM: JAM plugin /usr/sbin/jam/libjam_lc9600_cosd.so not needed on this platform - not loading

Solution

Since QFX does not require this plugin, it generates the log as expected. Usually this log could be seen when interface related config were modified or initiated.
At that time, cosd function will check the availability of JAM package. Mainly JAM plugin is required for chassis platform such as MX series.
On platform which does not support JAM plugin, you can safely ignore this message.

Modification History

2023-09-30