Description of the problem

Huawei OSN7500 and OSN3500 device master performance shows abnormal device temperature performance; where N4GSCC master (version 5.21.18.50P01) shows temperature performance of 486.5 degrees Celsius; and N3GSCC-B2 master (5.21.17.31SPH001) shows temperature performance of 947.3 degrees Celsius.

Huawei OSN3500 device N4GSCC master single board ( 5.21.18.50P01):

PER_GET_CURDATA

BID PERIOD STARTTIME EID OPPORT CHAN VALUE

24 24h 2011-01-17 00:00:00 bdtmpmax 1 1 4865

24 24h 2011-01-17 00:00:00 bdtmpmin 1 1 4865

24 24h 2011-01-17 00:00:00 bdtmpcur 1 1 4865

Data from N3GSCC-B2 ( 5.21.17.31SPH001) :

PER_GET_CURDATA

BID PERIOD STARTTIME EID OPPORT CHAN VALUE

25 24h 2011-01-17 00:00:00 bdtmpmax 1 1 9473

25 24h 2011-01-17 00:00:00 bdtmpmin 1 1 9473

25 24h 2011-01-17 00:00:00 bdtmpcur 1 1 9473

Alarm messages

No

Processing

1. Description: The processing mechanism for the host to report the temperature performance is: the host periodically (1-minute cycle) queries the temperature performance to the service veneer, and compares the temperatures of all service veneers with the temperature of the main control veneer, in which the highest temperature is reported as the current temperature performance.

2. After analyzing the returned information, it is found that the network elements with abnormal temperature performance reported by the main control are configured with N4SLD64/SSN4SL64 single boards, and the software version is 7.85. This software version has defects, which will report the slot information of the single board to the host as part of the temperature performance of the single board, and thus lead to abnormal temperature performance of the host. Upgrading the software version of the single board to version 7.87 and above can completely solve the problem.

:cfg-get-bdverinfo:8;">

BOARD-VER-INFO

PCB Version : SSN4SLD64 VER.

BIOS Version : 2.63

ExtBIOS Version : 2.64

Software Version : 7.85

Logic Version : (U27)200

3. After upgrading the N4SL64 board to version 7.92, the performance of the main control is normal.

Root cause

Huawei OSN3500 device SSN4SL64/SSN4SLD64/SSN4SLO16/SSN4SLQ16/SSN4SF64/SSN4SDF64/SSN3SLH41 single-board version 7.85 software defect causes abnormal master temperature performance.

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