U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Topology-based fault analysis in telecommunications networks

Patent 5771274 Issued on June 23, 1998. Estimated Expiration Date: Icon_subject June 21, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

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Inventor

Assignee

Application

No. 669259 filed on 06/21/1996

US Classes:

379/22.03, Fault detection or fault location on telephone link (e.g., continuity, leakage)340/3.43, Fault condition detection370/242, Fault detection370/250, Of a switching system379/14.01, Fault segmentation (e.g., error location in network)379/15.05, Determining fault location379/16Of switching path

Examiners

Primary: Kuntz, Curtis
Assistant: Tieu, Binh K.

International Classes

H04M 001/24
H04M 003/08
H04M 003/22

Abstract

A method and apparatus for detecting traffic-affecting failures in a telecommunications network; by inferring the most probable location of each such failure, given multiple alarm indicators along a network circuit; correlating circuit alarms to trunk failures, or inferring trunk failures from circuit alarms; inferring the location of major network outages by topologically correlating multiple trunk failures; and filtering alarm reporting to the Fault Management System users such that only the most significant derived or inferred conditions are automatically displayed.

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