Method and system for fault isolation within a network...

Details Method and system for fault isolation within a network... Method and system for fault isolation within a network...

2008-05-27

2008-05-27

Nguyen, Kimbinh T (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

C345S419000, C345S423000, C345S428000, C345S440000, C345S441000, C714S004110, C370S241000, C370S242000, C709S224000

Reexamination Certificate

active

10986347

ABSTRACT:
A method and system for fault isolation within a network element in an optical network is described. A single fault in the system can give rise to multiple alarms detected at multiple points. Finding the root cause alarm corresponding to the fault that has triggered these alarms is important for fault isolation and is the focus of attention for this invention. The network element is modeled by a directed acyclic graph that captures the interactions among various components in the network element. Using a graph-based technique the invention analyzes the various topological faults raised and their locations for identifying root cause alarms and masking all correlated alarms.

REFERENCES:
patent: 6414595 (2002-07-01), Scrandis et al.
patent: 6707795 (2004-03-01), Noorhosseini et al.
patent: 7043661 (2006-05-01), Valadarsky et al.

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