Description of the problem

When querying the performance of an NGSDH OSN3500 device, it is found that a certain line board performance is missing. Then the single board query for this single board performance returns a value of NULL.

Processing

First, query whether the single board of this OSN3500 device is working, and execute the command :cfg-get-workstat:bid

#9-44:szhw [][][][2011-10-22 23:43:09+08:00]>

:cfg-get-workstat:5

BD-WORK-STATUS

BID WORK-STAT

5 not work

Total records :1

It was found that the OSN3500 device veneer is not working, and the performance will not be monitored if the veneer is not working.

Then analyze the reason why the single board does not work, first of all, replace the single board to another slot, and found that it can work normally, so it is judged to be a slot problem. After replacing the subrack, the problem was solved.

Root cause

The root cause of this problem is that the single board fails to start due to a slot failure, and thus the performance of this single board cannot be queried.

Solution

Emergency recovery measure: Replace the slot or replace the subrack. Complete solution: Replace the slot or replace the subrack.

This chapter of related technical information and SDH equipment troubleshooting process by the Shenzhen Optical Transmission Network Technology Limited collection ( www.opticaltrans.com), reproduced please retain! Our company specializes in Huawei SDH optical transmission equipment, SDH transmission equipment sales.