suppress alarm with report

suppress alarm with report

I've a bit question for suppress alarm feature.
 
when using the suppress alarm , that mean downtime will calculate in the report or not . (for case device down or interface down)
I think the suppress alarm, just alarm so the downtime which occured will to calculate in the report.
which diffrence from the schedule downtime which the downtime will not to calculate in the report .
 
* I'm try to find the answer all the forum and user guide , but not have .
 
please clarity to me.
 
Thanks.

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