Handling Process
Huawei performed the following operations to address the issue:
1. Replaced the Ethernet switching boar, but the symptoms persisted.
2. Replaced the service board in slot 16, but the symptoms persisted.
3. Inserted the service board in slot 16 into slot 15, and the issue was resolved. Root Cause
The bent pins on the backplane corresponding to slot 16 affected the normal communication between slot 16 and slot 22. Solution
Huawei replaced the backplane. Suggestions
Ensure that the connection parts are normal before you insert a board.