# [NPC_TAZ_INVALID_FPC_SLOT](https://apps.juniper.net/syslog-explorer/?msg=NPC_TAZ_INVALID_FPC_SLOT)

## SYSLOG Details
- **Message**: TAZ: Invalid FPC slot (<variable>function-name</variable>) or PIC slot (<variable>fpc-slot</variable>)
- **Help**: FPC slot id is invalid
- **Description**: FPC slot id 3
- **Type**: Internal: Internal log message
- **Severity**: error
- **Cause**: -
- **Action**: -
- **Attributes**: function-name
fpc-slot
- **Facility**: LOG_PFE

## Found this message in the following releases:
- [Junos OS 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=NPC_TAZ_INVALID_FPC_SLOT&sw=Junos%20OS&rel=24.2R1)
- [Junos OS 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=NPC_TAZ_INVALID_FPC_SLOT&sw=Junos%20OS&rel=23.4R1)