How To Solve The Nesoft_mm Alarm In A OSN 3500
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How to Solve the Nesoft_mm Alarm In A OSN 3500

Now Huawei launched many version of OSN3500, V200R011, V200R012, V200R013..., this time we are talking about the problem when upgrading OSN3500 from V200R011 to V200R012.

After perform an upgrade on a OSN 3500, from V200R11C00 to V200R12C00SCP102, using U2000 V100R008C00SPC300, the packet loading failed on one SCC board, so the decision was to change that board by a new one that was previously prepared. After doing this, none alarm was reported, but after 40 minutes, the NESOFT_MM alarm appeared on the active SCC board. We a switchover was performed on the SCC Boards, the alarm was cleared, but reported again on the other SCC board, the one that would be active after the switchover

The NESOFT_MM is an alarm indicating that the first software system is different from the second software system. This alarm is reported when the NE detects that the first software system and the second software system of the system control, cross-connect, and timing board mismatch with each other. For this case, the difference is on the OFS1 and OFS2 folders from the SCC Boards.

After checking the alarm root cause (a difference between first software and second software system) the folder from SCC boards were checked (OFS1 and OFS2 folders) in order to find some files different between the two folder, but nothing was found. After doing this, the following Navigator commands were executed:

:sftm-get-testver:17

:sftm-get-testver:18

For this case, the working and standby board were located at the slots 17 and 18. The result for these command were like this:

VERSION-INFORMATION(INCLUDING-PATCH-INFORMATION)

NESOFTNAME VER DATE STATE TEST-VERSION-INFO

NFS 5.21.32.15 20121028 Running T04

NSF1 5.21.32.15 20121028 active T04

NSF2 5.21.32.15 20121028 inactive T04

INI1 5.21.32.15 20121018 active T04

INI2 5.21.32.15 20121018 inactive T04

BIOS 08.09.02 20100720 inactive T01

ExtBIOS 09.09.07 20120709 active T01

Logic (U35)110

LogicE01 (U80)130

DRV 1.10 20120627 active T01

Total records :10

VERSION-INFORMATION(INCLUDING-PATCH-INFORMATION)

NESOFTNAME VER DATE STATE TEST-VERSION-INFO

NFS 5.21.32.15 20121028 Running T04

NSF1 5.21.32.15 20121028 active T04

NSF2 5.21.32.15 20121028 inactive T04

INI1 5.21.32.15 20121018 active T04

INI2 5.21.32.15 20121018 inactive T04

BIOS 08.09.05 20111130 inactive T01

ExtBIOS 09.09.07 20120709 active T01

Logic (U35)110

LogicE01 (U80)130

DRV 1.10 20120627 active T01

Total records :10

Checkng the command results, is easy to find out that the BIOS version is different between the two boards. So this was the root cause for the NESOFT_MM alarm. In order to solve the issue, the board which the software isn’t ok according to the matching table, was replaced by a new one previously prepared and checked with the right software versionsAfter performing an upgrade, always is a good idea to check if there is something bad between firts and second software system, using the command:sftm-get-testver:bdid at both working and standby SCC boards.

The Version since V200R012, OSN3500 upgraded to Hybrid MSTP version, this problem many customer may meet, who want upgrade their OSN3500 from traditional MSTP to MSTP+. Follow Thunder Link International, we will try to provide technical assistance and product supplying.


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