This article describes the meaning and steps to perform to resolve error logs  PLL_CMERROR_MPC_SI5374_1A (0x17000a)

Below chassis alarm would be raised.

root@host> show chassis alarms no-forwarding
1 alarms currently active
Alarm time              Class Description
2024-07-23 02:43:48 UTC Major FPC 11 Major Errors

Below logs would be observed:

Jul 23 02:43:35 host : %PFE-5: fpc11 CMError: /fpc/11/pfe/0/cm/0/PLL_Error/0/PLL_CMERROR_MPC_SI5374_1A (0x17000a), scope: board, category: functional, severity: major, module: PLL Error, type: XM23 si374_A PLL 
Jul 23 02:43:36 host : %PFE-5: fpc11 Performing action get-state for error /fpc/11/pfe/0/cm/0/PLL_Error/0/PLL_CMERROR_MPC_SI5374_1A (0x17000a) in module: PLL Error with scope: board category: functional level: major
Jul 23 02:43:48 host alarmd[28665]: %DAEMON-4: Alarm set: FPC id=150997864, color=RED, class=CHASSIS, reason=FPC 11 Major Errors

The log message "PLL_CMERROR_MPC_SI5374_1A (0x17000a)" indicates a major error related to the Phase Locked Loop (PLL) on FPC 11, specifically with the SI5374_1A module. This error is typically caused by a synchronisation issue between the FPC and the system clock.

This suggests a hardware problem with FPC11. Rebooting or reseating the component will not resolve this issue.

If you observe this issue post reboot, It could indicate a potential hardware issue. Kindly replace the FPC with the new one.