Hi, community!
Today, let's share with you how to handle the board registration failure. On a network, if a board is faulty, the entire device or the network may be faulty. Then, we need to understand the method of troubleshooting board faults. If you have any suggestions, please let me know.
Board Status
Run the display device command to check the registration status of the board. If the status is abnormal, the board is not registered.

Check Procedure
Run the display elabel command to check the board model and board SN. This is a preparation for subsequent troubleshooting. You can locate the fault accurately only after you confirm the board model and board type.

Run the display version command to check the device model and version. It takes a long time to check whether the board is running and the device version is very old. As a result, the board is incompatible with the device.

Check whether they match in the manual or hardware tool according to the first and second points. In the tool, you can query the equipment model and version of the board.
4. Check whether the board is inserted into the wrong slot. You can also query the installation method in the manual based on the product model. Check the cooperation between the device and the board and ensure that the board is installed in the correct slot. You can also use the tool in step 3 to query the slot where the board should be installed.

5. Check whether the board is powered on. If no, run the power off slot x command. This is to check the power-on status of the board. You can run the display device command to check the registration status of the board. If the registration status of the board is power off, power on the board.

6. Check whether the board indicator is red or run the display alarm command to check whether alarm information is generated. Red indicates the fault color. When the board color is red, related alarms are generated in logs or alarm information. In this case, you can consider that the board is faulty and use the alarm information to locate the fault type.

7. Run the display logbuffer and display trapbuffer commands to check whether logs and alarms exist. Check the logs to check whether the board alarm information exists. Check whether the board or slot information exists in the logs. If yes, check whether the related information is a fault alarm.

8. Check whether the board is securely inserted. If so, insert and then insert again. Many engineers do not insert the board completely into the device during board installation. As a result, the board cannot be registered normally. In this case, they need to remove the board and re-install it.
9. If the fault persists, collect diagnostic logs and contact the TAC center.





