System and method for fault diagnosis using distributed alarm correlation

摘要

A system and method for diagnosing faults in a communication network using a distributed alarm correlation system (20). The alarm correlation system may include node-level alarm correlation tools (ACTs) located at nodes (22) in the network to provide node-level alarm correlation producing node-level correlation results. The node-level ACTs may share diagnostic knowledge with other node-level alarm correlation tools at other nodes (24). Each of the node-level ACTs may also share the diagnostic knowledge and the node-level correlation results with a higher-level ACT (28). The higher-level ACT (26) may provide higher-level alarm correlation to produce higher-level correlation results. <IMAGE>