External Site Need to Suppressing Alerts When Router Goes Down

RyanFoy

How do I suppress an alert for when the main node of a site goes down? I want to have it trigger if a node goes down within the site but not if the connection with the whole site goes down. 
I created a value to isolate all of the external site nodes from not alerting if they go down but I can't figure out how to put into rules : 
If node "router1" is down don't fire alert

I can only state that if Node status is up or not and not identify the individual node this alert relies on

jere557

You'll use Dependencies for this.  Create a group with all the "child" nodes (nodes you don't want to alert if the parent goes down), and then create a dependency with the Parent set as the router or whichever WAN connecting device you have, and the Child object as the Group you created.  Dependencies work by having the Child node status change to Unreachable, instead of down, so for your Node Down alert, ensure that it's set to Node Status is equal to Down, instead of Node Status is not equal to Up.  You could also add a second Trigger condition of Node Status is not equal to Unreachable.