Why some ONT upgrade finish fast and some ONT upgrade finish slowly while using the BMS XML task to upgrade the ONT ?
It is normal phenomena, the reason is like the following:
1. On the upgrade progress, it is the parallel queue task between the different OLT and BMS.
2.It is the serial queue task between different GPBC cards under one OLT
3.under the one GPBC card, the different ONT, it's parallel queue task.
So all the ONT the upgrade task time is not same,usually the upgrade time is normal between 10 ~20 minutes.for some special situation, some few ONT upgrade time will be maximum 30 minutes.