Abstract: A method for extending an event structure including submitting a keyname and a corresponding value for the event structure and determining whether the keyname exists in a keys field array of the event structure. If the keyname does not exist in the keys field array, the method includes incrementing an index of the event structure, adding the keyname to a position in the keys field array based on the index and adding the corresponding value to a position in the values field array based on the index. If the keyname does exist in the keys field array, the method includes determining the position of a previously stored value in the values field array associated with the keyname and replacing the previously stored value in the values field array with the corresponding value.

Abstract: An event management system including an event manager, an alarm rule store, an event correlator, and a response engine. The event manager provides and receives events. The event correlator correlates at least one of the events provided by the event manager based on the alarm rules stored in the alarm rule store. The response engine executes a response policy based on the correlation of events by the event correlator.

Abstract: A method for routing a subscription request defined by an event filter. The method includes parsing the event filter into an evaluation tree having at least one subexpression, locating the at least one subexpression and determining if the at least one subexpression includes a node specific field. If the at least one subexpression includes a node specific field, the method includes creating a list of nodes and event manager contact information and transmitting the subscription request to at least one event manager located on a node that is included on a list of nodes.