After the software 220.127.116.11 had been uploaded on the OptiX OSN 1800 V we received SWDL_CHGMNG_NOMATCH alarm.
1. Checked if the SCC software board is matching with NE software.
Having the fact that the SCC software and NE software is matching, we need to make sure that software package had been loaded successfully.
2. verify if the status of SCC is normal, on the Configuration Tree -> 1+1 protection
3. If step 2 is ok, please upload the corresponding software on the NE.
In our case Optix OSN 1800V100R006C20SPC500(F3SCC,F5SCC,Z5SCC) software, you can find the patch on the next link: http://support.huawei.com/enterprise/en/software/22160329-ESW1000234890
The software packets on the NE didn't load correctly.
Re-upload the software packages in a service window.
The alarm is generated when the automatic matching function of the software package is not working, this function comes in two stages:
1) In the startup process, the SCC unit only detects the board version, but does not start auto match of the software package. After the SCC unit is started, it will check whether the boards support package loading. If so, the SCC unit will check whether the software version saved on the board is consistent with the NE software version. This interaction process starts from the startup of the SCC software and continues until the SCC unit changes from the pending stability state to the normal state.