Hello, everyone!
I would like to share with you an issue about SWDL_CHGMNG_NOMATCH alarm declared on some OptiX OSN 8800 equipment.
Description:
The SWDL_CHGMNG_NOMATCH appears on some nodes.
Software mismatching alarm after system control board replacement. The system re-checks whether the software of each board matches the NE software after the NE starts up upon a power failure or the system control board is replaced or reset (cold). This alarm is generated when the board software of a board mismatches the NE software.
Attribute:
Impact on the System:
When this alarm occurs, the automatic matching function for package loading is disabled.
The version of the NE software is inconsistent with that of the system control board. Certain functions of the NE may operate abnormally.
Possible Causes:
After the NE is powered off, a board is inserted and the software version of the board is inconsistent with that of the system control board.
The system control board is replaced and the software version of the new system control board is inconsistent with the NE software version.
Procedure:
Contact Huawei engineers to determine a correct software package. On the NMS, use the correct package loading on the board. In normal cases, this alarm is automatically cleared after the package loading succeeds.
Solution:
The SWDL_CHGMNG_NOMATCH alarms appeared when new UPS degrees (OptiX OSN8800 Universal Platform Subrack) were deployed on ROADM nodes. In this case, Huawei engineers informed us that the alarms had originated because the new UPS degrees had new board types (e.g. TN12RAU2) and that we should perform a Package Diffusion Upgrade Task (8800.pkg - V100R010C10SPC300).
When the task finished successfully, the SWDL_CHGMNG_NOMATCH alarms were cleared:
Conclusion:
Please note that services may be affected if an incorrect software package is used for package loading or incorrect task is performing.
Therefore, perform the procedure under guidance of Huawei engineers.
That's all, I welcome everyone to leave a message and exchange in the comment area!
Thank you!
References:
- HedEx
BR
