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Configuring Dependencies

I understand how dependencies work and all, but I'm curious how most people go about setting up their groups.

We have a main data center, and a bunch of sites connected via an MPLS network. We have a single poller at the data center.

My first impulse was to create a group for each site. But when setting up the alerting dependencies, I ran into a problem. If I lose contact with the site WAN router I don't want to get alerts from all the devices at the site. I thought it would be easy to configure all devices in the site group as dependent on the site router. But the site router is also in the group, and the dependency configuration won't let you make a group of objects dependent on a member of that group.

So does that mean I have to further divide my site into groups (WAN Router, Core Switch, Downstream devices) and assign dependencies that way? Seems like a lot of configuration for just the benefit of the dependencies.

But I'm coming from a What's Up Gold background, and my perspective may be skewed by WUG's this-node-depends-on-these-nodes type of configuration (which is also tedious).

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MarieB

Hi Karl--

Have your read this Technical Reference. It is helpful.

karltbraun

You know, I forgot I had that passed on to me already. A cursory glance indicates it's going to do the trick. I'll reply further if I need additional clarification.

Thanks,

karltbraun

After digging into this and discussing my needs with the support staff, it was determined that Dependencies were not quite ready for prime time, and we've implemented a rather crude method of dependencies by writting suppression rules. This is, of course, cumbersome and time consuming. At the moment, I only have this faux-dependencies set-up for devices at a particular site, with suppression if the site router is down. I need more granularity than this now, and am wondering what the current status of dependencies is.

Have new write-ups been made since 2010? If not, do the old write-ups (using groups) apply and do they work now?

karltbraun

*bump*