I have one router, a Juniper, that is reporting 15 OSPF neighbors down, yet they are not down, haven't gone down, and have been solid for weeks. This just started the other day, and I can clear the alerts, and they stay cleared for 12 hours of so, and pop right back up. The thing I see is there are a few triggering object IP's that differ, but the majority of them are from the same device.