Hello, you have more options here.
If you have set the dependencies and the parent goes down, the children will go to unreachable state, so you can filter only to down status:
1. Use the filtering abilities of the web resources (click on Edit) and set the condition to Status=2
2. Use the View limitation (Customize page) and set similar condition here
3. Use the custom query resource with query like "select caption, ipaddress from orion.nodes where status=2" (after some tuning you can get here also icons, tooltips and links to node details)
Maybe also others