Specifies the level of severity an event must meet in order to be logged. Controls the amount of event logging by ignoring events of a lower priority than specified by this filter value. `Highmed' ignores only events of the lowest severity. `Highlow' logs all events highest priority through lowest. `Highest' severity causes all events except those of the highest severity to be ignored. `Highmed' severity is the default setting which causes only events of the lowest severity to be ignored. `Highlow' severity logs all events, regardless of severity.