Patent ReferencesCommunications network state and topology monitor Transmission line switching system Methods and systems for alarm correlation and fault localization in communication networks Apparatus and a method for setting a communication path Tracing system for tracing transmission route in transmission network Wrap-around route testing in packet communications networks Method of sectionalizing trouble on telecommunication network connections Virtual path connector and virtual path tracing method and apparatus Patent #: 5634097 InventorAssigneeApplicationNo. 669259 filed on 06/21/1996US 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 pathExaminersPrimary: Kuntz, CurtisAssistant: Tieu, Binh K. International ClassesH04M 001/24H04M 003/08 H04M 003/22 AbstractA 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. | |