Hi,
I opened a new idea at Innovation zone - to be able to mark devices "known to be down" and thus prevent those to be shown as (potential) issue.
Similar to what is possible in Airwave.... of course, a comment field to add some additional information (like in Airwave) will be useful as well.
So if you are lacking this feature as well pls. vote - it will hopefully help to get it implemented faster
innovate.arubanetworks.com/ideas/NMS-I-2142