# CHASSISD_FM_ERROR_SIB_L_MISMATCH

## Canonical Reference

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

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

## SYSLOG Details
- **Message**: FM: fiber cable from SIB-L#<variable>sib-slot</variable> possibly connected to wrong SIB-S
- **Help**: Fiber-optic cable was connected to wrong SIB-S
- **Description**: In a routing matrix, the fiber-optic cable between each Switch Interface Board in a T640 routing node (called a SIB-L) must connect to a specific SIB port on the TX Matrix platform (called a SIB-S). The cable originating at the indicated SIB-L was possibly plugged into the wrong SIB-S port or wrong SIB-S.
- **Type**: Error: An error occurred
- **Severity**: error
- **Cause**: -
- **Action**: Contact your technical support representative.
- **Attributes**: sib-slot
- **Facility**: LOG_DAEMON

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