Professor
Professor+1 -- this is really a version of what Nagios does for hosts versus services -- if the host is down, services do not generate alerts. I long ago requested that along with the idea of parents (auto-dependencies) and manual dependencies like Nagios. I was under the impression this was being worked on, but I have seen no movement on that, unfortunately. LM does at least allow you to emulate that to an extent with collectors per site, but you can still get a storm for your situation or from a downstream switch outage even within a site.
Mark
