Description of the problem

After unplugging the OSN3500 expansion subrack 87-AUX board, all other boards on the expansion subrack report BD_STATUS alarms, but only 87-AUX itself does not report. Checking the physical board list :cfg-get-phybd; command, the board list still shows the 87-AUX board in position.

37 ssn1aux

38 ssn1fan

39 ssn1fan

40 ssn1fan

87 ssn1aux

BD_STATUS

Processing

None

root cause

N/A

Solution

1, device some boards that do not have an in-position line and do not have a CPU, as long as the logical board is configured the physical board is online by default.

2, for the expansion of the sub-frame of the single board, because it can not directly read the inline registers, so it is through the communication to identify whether the online.

3, AUX boards without CPU, and it is not convenient to read the registers directly on the expansion subrack, so the default physical board online is used.

Suggestions and Summary

None

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