# [L2CPD_MIRROR_ERROR](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR)

## SYSLOG Details
- **Message**: Unable to establish mirror connection between Routing Engines: <variable>error-message</variable>
- **Help**: l2cpd could not initialize mirror subsystem
- **Description**: The Layer 2 Control Protocol process (l2cpd) could not establish the mirror connection (which supports nonstop routing) between the master and backup Routing Engines.
- **Type**: Error: An error occurred
- **Severity**: warning
- **Cause**: The master and backup Routing Engines are running incompatible versions of the JUNOS software.
- **Action**: Update the JUNOS software to compatible versions on the master and backup Routing Engines.
- **Attributes**: error-message
- **Facility**: LOG_DAEMON

## Found this message in the following releases:
- [Junos OS 26.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=26.2R1)
- [Junos OS 25.4R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=25.4R1)
- [Junos OS 25.2R2](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=25.2R2)
- [Junos OS 25.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=25.2R1)
- [Junos OS 24.4R2](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=24.4R2)
- [Junos OS 24.4R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=24.4R1)
- [Junos OS 24.2R2](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=24.2R2)
- [Junos OS 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=24.2R1)
- [Junos OS 23.4R2](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=23.4R2)
- [Junos OS 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=23.4R1)
- [Junos OS 23.2R2](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=23.2R2)
- [Junos OS 23.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=23.2R1)
- [Junos OS 22.4R3](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=22.4R3)
- [Junos OS 22.4R2](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=22.4R2)
- [Junos OS 22.4R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=22.4R1)
- [Junos OS 22.2R3](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=22.2R3)
- [Junos OS 22.2R2](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=22.2R2)
- [Junos OS 22.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS&rel=22.2R1)
- [Junos OS Evolved 26.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=26.2R1)
- [Junos OS Evolved 25.4R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=25.4R1)
- [Junos OS Evolved 25.2R2](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=25.2R2)
- [Junos OS Evolved 25.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=25.2R1)
- [Junos OS Evolved 24.4R2](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=24.4R2)
- [Junos OS Evolved 24.4R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=24.4R1)
- [Junos OS Evolved 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=24.2R1)
- [Junos OS Evolved 23.4R2](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=23.4R2)
- [Junos OS Evolved 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=23.4R1)
- [Junos OS Evolved 23.2R2](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=23.2R2)
- [Junos OS Evolved 23.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=23.2R1)
- [Junos OS Evolved 22.4R3](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=22.4R3)
- [Junos OS Evolved 22.4R2](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=22.4R2)
- [Junos OS Evolved 22.4R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=22.4R1)
- [Junos OS Evolved 22.2R3](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=22.2R3)
- [Junos OS Evolved 22.2R2](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=22.2R2)
- [Junos OS Evolved 22.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2CPD_MIRROR_ERROR&sw=Junos%20OS%20Evolved&rel=22.2R1)