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Hierarchy Level

[edit chassis fpc slot-number error fatal]

[edit chassis fpc slot-number error major]

[edit chassis fpc slot-number error minor]

[edit chassis error fatal]

[edit chassis error major]

[edit chassis error minor]


Depending on the severity level of an error, you can configure one or more actions for the router to perform. For example, if the severity level of an error is major, you can configure the system to raise an alarm and restart the FPC. You can use offline-pfe and reset-pfe options to map errors belonging to pfe category.



Raise an FPC alarm.


(PTX routers) Disable Packet Forwarding Engine interfaces on an FPC. (MX240, MX480, MX960, MX2020 PTX10008 routers). Disables the interface associated with the ASIC that raised the error. Disables all PFE interfaces, alarms and logs. On MX Series routers, an MPC can have multiple ASICs handled by a single PFE. Disabling the PFE in such cases, is not the optimal way to handle the error.


The system starts collecting statistics counters and other data from the affected FPC. The data is written and saved to a file under /var on the routing engine.

offline Disables the alarms, logs, and shuts down the affected FPC, allowing traffic to be re-routed through interfaces on other FPC in the device.
reset The system takes the affected FPC offline and resets to online, enables the alarms and logs.
offline-pfe Disables the alarms, logs, and shuts down the affected PFE.
reset-pfe Powers-off the PFE, disables the alarms and logs, then, powers-on the PFE, enables the alarms and logs.
log Log occurrences to the system log file.

The system raises traps for the FPC errors.


The usage guidelines are as follows:

  • The specified PFE is disabled automatically if offline-pfe or reset-pfe is configured. For details, see Configuring FPC Error Levels and Actions.

Required Privilege Level


To view this statement in the configuration.


To add this statement to the configuration.

Release Information

Statement introduced for PTX Series routers in Junos OS Release 13.3.

Statement introduced for MX240, MX480, MX960 routers in Junos OS Release 14.2.