These severities are applicable to the Event Manager or Alarm Manager, depending on the version of Iris that you have installed.

There are 5 levels of threshold events: Critical Ceiling, Warning Ceiling, Clear, Warning Floor and Critical Floor.

There are 3 levels for latency: Warning (more than 500ms ping), Error (more than 900ms ping), Critical (more than 1850ms ping).

There are 3 levels for availability: Warning (5 of 8 or less packets returned), Error (3 or less packets returned), Critical (1 or less packets returned)