1. Copy the software of the active CXL board onto the replace board, and the data synchronization failure alarm disappears. Query through :hbu-get-backup-info, and its status is found to be 3, indicating success of the data synchronization.
2. The active CXL board still reports the MSSW_DIFFERENT alarm. Run :sftm-get-vermatch-info:82, VERCHECK and find that the CPLD return value LogicE01 (U21) 110 in the 82 software is different from the CPLD return value LogicE01 (U21) 130 of the 81 software.
3. Check the software package but find no CPLD upgrade software. Confirm with the company and learn that CPLD cannot be upgraded simply by software. CPLD inconsistency in a short period does not affect normal use of the board.
4. To avoid any problem, it is recommended to keep CPLD consistent for the replace CXL board.