show system alarms
1 alarms currently active
Alarm time Class Description
xxxxxx Major FPC 0 Major Errors
What causes this?
Any configuration done on the box recently?
what is the hypervisor used?
Share the output of "show chassis hardware".
Depends on the platform and the JUNOS release. Please share the details with us including the "show chassis alarms" output.
Additionally, please check the log messages file for any error logs.
There might be multiple causes which result in the alarm as below:
FPC 0 Major Errors
Can you please share the log messages ? show log messages | match fpc0