Description of the problem

After adding an EMS4 board to slot 16 of a Huawei OSN3500 device, the EFF8 or ETF8 board cannot be added to slot 36 (the interface board slot), and the network management prompts the error: the slot number is illegal, and the error code is 38663.

Alarm message

Slot number is illegal, error code 38663.

Processing

1. Check the product manual, which clearly states that after adding EMS4 board in slot 16, you can add EFF8 or ETF8 interface board in slot 35 or 36.

2、Set the network management to pre-configuration, and the interface board can be added to slot 35 or 36 smoothly.

3, return data R & D analysis: version code error, resulting in the EFF8/EFT8 board can only be added in 19, 21, 23, 25, 29, 31, 33, 35 slots, can not be added in other slots.

4、After confirmation, this problem exists from version 5.21.16.xx to 5.21.18.44, to solve this problem, we need to upgrade to version 5.21.18.50 and above.

Root Cause

1. The Huawei OSN3500 device EMS4 single board does not support adding an interface board in slot 36.

2. Network management or host defects.

The related technical information and SDH equipment troubleshooting procedures in this chapter are collected and organized by Shenzhen Optical Transmission Network Technology Company Limited ( www.opticaltrans.com), please retain! Our company specializes in the sale of Huawei SDH optical transmission equipment, SDH transmission equipment.