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

## SYSLOG Details
- **Message**: PCIe bus number assignment failed for controller <variable>pci-bus</variable>: <variable>status</variable>
- **Help**: Failed to assign bus numbers
- **Description**: Failed to assign PCIe bus numbers
- **Type**: Internal: Internal log message
- **Severity**: error
- **Cause**: -
- **Action**: -
- **Attributes**: pci-bus
status
- **Facility**: LOG_PFE

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