Patent ID: 6697970
Filing Date: 2004-02-24
Classification: H04L

Abstract:
A method of SNMP (Simple Network Management Protocol) based fault management in a network having a plurality of managed resources monitored by a management system, each one of the plurality of managed resources having a set of defined alarms and a first active alarm table and the management system having a second active alarm table for maintaining a record of alarms on each of the plurality of managed resources, said method comprising the steps of:(a) maintaining the first active alarm table of each of the managed resources in response to an occurrence and removal of an alarm from the set of defined alarms wherein the step of maintaining includes: (i) updating the first active alarm table of a target managed resource with alarm notification information in response to the occurrence of the alarm in the target managed resource, the target managed resource being one of the plurality of managed resources; and (ii) removing the alarm notification information from the first active alarm table of the target managed resource in response to a return to normal notification received from the target managed resource; and (b) advising the management system of the occurrence and removal of the alarm by updating the second active alarm table with the alarm notification information received from the target managed resource.