# MCLAG_CFGCHKD_MANDATORY_CONSISTENCY_CHECK_FAILED

## Canonical Reference

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

**Canonical URL:**  
https://apps.juniper.net/syslog-explorer/?msg=MCLAG_CFGCHKD_MANDATORY_CONSISTENCY_CHECK_FAILED

## SYSLOG Details
- **Message**: Mismatch detected in <variable>reason</variable> config, error_code <variable>error-code</variable>
- **Help**: Mandatory compliance for mc-lag configuration between the peers failed
- **Description**: Some of the Multichassis Link Aggregation(MC-LAG) configuration parameters between the peer devices are not consistent. The concerned MC-LAG interfaces were explictly brought down to prevent unwanted behavior.
- **Type**: Event: This message reports an event, not an error
- **Severity**: critical
- **Cause**: mis-configuration
- **Action**: Contact your technical support representative.
- **Attributes**: reason
error-code
- **Facility**: LOG_DAEMON

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