# [ACX_L2_MAC_NOTIFY_INVALID_EVENT](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT)

## SYSLOG Details
- **Message**: <variable>function-name</variable>: Unknown event <variable>error-code</variable> received. Dropping
- **Help**: Received an invalid mac learn notification from forwarding asic
- **Description**: Received an invalid mac learn notification
- **Type**: Error: An error occurred
- **Severity**: error
- **Cause**: -
- **Action**: -
- **Attributes**: function-name
error-code
- **Facility**: LOG_PFE

## Found this message in the following releases:
- [Junos OS 26.2R1](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=26.2R1)
- [Junos OS 25.4R1](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=25.4R1)
- [Junos OS 25.2R2](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=25.2R2)
- [Junos OS 25.2R1](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=25.2R1)
- [Junos OS 24.4R2](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=24.4R2)
- [Junos OS 24.4R1](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=24.4R1)
- [Junos OS 24.2R2](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=24.2R2)
- [Junos OS 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=24.2R1)
- [Junos OS 23.4R2](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=23.4R2)
- [Junos OS 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=23.4R1)
- [Junos OS 23.2R2](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=23.2R2)
- [Junos OS 23.2R1](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=23.2R1)
- [Junos OS 22.4R3](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=22.4R3)
- [Junos OS 22.4R2](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=22.4R2)
- [Junos OS 22.4R1](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=22.4R1)
- [Junos OS 22.2R3](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=22.2R3)
- [Junos OS 22.2R2](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=22.2R2)
- [Junos OS 22.2R1](https://apps.juniper.net/syslog-explorer/?msg=ACX_L2_MAC_NOTIFY_INVALID_EVENT&sw=Junos%20OS&rel=22.2R1)