Nagios Support Forum

Hi

I'm monitoring a network environment of around 2000 hosts and have parent/child relationships configured.

I have disabled the unreachable notifications for all of my child hosts.

I'm finding that if a parent goes down, I only get a notification for that parent (not the children), which is good.
However when the parent comes back online, I receive a recovery notification for the parent but also receive recovery notifications for all of the children, which is very noisy.

Can anyone assist?

A couple of questions:
1. When a parent goes down, do the children fail before the parent?
2. Have you considered turning off recovery notifications on the children?
3. Have you looked into host dependencies? With host dependencies, you should be able to disable recovery notifications when recovering from an unreachable state.

Nah they kind of fail at the same time... The parent is generally a branch router and the children are switches and other devices behind that router.

I did consider turning off recovery notifications for the children, but we actually need them on in the event that a child genuinely fails and recovers.

I will look into host dependencies, I refrained from venturing here as I was under the impression that parent/child configuration was all i needed.

Thanks! I'll advise how it goes

In order to really know what is happening we would need to see the definition for one of the children and the associated templates.