Description: This MIB table allows for management events that can be generated by an MTA to be classified into categories, or 'event classes'. For example, all the configuration- related events can be associated with an event class titled 'configuration'. Such a classification allows for a management station to affect changes on a common group of events at once. Two operations are specified on an event class: enabling or disabling of all the events in an event class, and selective enabling or disabling based on the severity level.