Hi,
it takes a very long time until PI (version 2.0) realizes that a switch is unavailable (around 5 minutes). In some cases, the affected device is up and running again and the NMS doesn't take a note about this. I already changed the Device Health Monitoring to poll the Device Availibility every 1 minute, but it doesn't fix this issue.
Furthermore, there is a heavy delay between the alert creation and sending the notification mail (around 20-30 minutes). And the next problem is, that a timestamp is missing inside the notification mail. So the network administrator get the mail with the "switch down"-alert which has been affected 30 minutes ago and you can't see when did that happen.
I hope we can correct this by any configuration changes...
Thank you
Falk