Event management defines a set of functions that are applied to the alert stream to identify those alerts associated with actual or potential service disruptions. Further actions are initiated after the event manager identifies the important alerts.
Alerts arrive in different forms, as determined by the collectors and specific product implementations. They include the following:
Simple Network Management Protocol (SNMP) traps, which are sent mainly by network infrastructure elements, although elements in other infrastructures (such as the server infrastructure) also use SNMP
Alerts from passive and active collectors using vendor-specific protocols
Alerts from other elements using vendor-specific protocols
Alerts triggered ...