This article explains alternative way to soft restart FPC from configuration mode apart from operational mode command.

FPC's frequently face transient hardware errors which are non-recurring or not persistent.
JTAC first action plan is to Restart the affected FRU (Field Replaceable Unit) to clear any transient issue on the FRU.

There are 2 ways to restart the FRU through CLI (via):

• Operational mode

• Configuration mode

To restart FPC using configuration mode command follow the below steps:

Enter Config mode:

#set chassis fpc x power off

#commit

Verify FPC offline:

#run show chassis fpc

[now wait for 5 mins]

#delete chassis fpc x power off

#commit

To know how to restart FPC through operational mode command, refer to this document: https://www.juniper.net/documentation/us/en/software/junos/chassis/topics/ref/command/request-chassis-fpc.html\

NOTE: In whichever mode we proceed to restart the FPC, it should be carried out in scheduled Maintenance Window.

To know more about:

Transient hardware issue: https://supportportal.juniper.net/s/article/Junos-Definition-of-transient-hardware-error

Operational mode restart of FPC: https://www.juniper.net/documentation/us/en/software/junos/chassis/topics/ref/command/request-chassis-fpc.html