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Real Time Method for Handling Low Frequency Reoccurring Network Problems

IP.com Disclosure Number: IPCOM000131675D
Original Publication Date: 2005-Dec-10
Included in the Prior Art Database: 2005-Dec-10
Document File: 1 page(s) / 235K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

Telecommunication networks are subject to network failures which can result in a large number of alarm messages. Root cause analysis systems detect failures in the network and correlate them with all alarm messages generated as a consequence of failures. Some of these network failures are toggling. They appear and disappear over time, resulting in a new trouble ticket which is generated each time a failure appears. This problem can be solved by different types of integration filters. But in case of low frequency toggling problems, i.e. the frequency of problem occurrence is much lower, there are no existing systems dealing with this issue up to now. Besides systems dealing with high frequency toggling problems, methods are known which automatically update the alarm report status to indicate which alarm report has been handled by a trouble ticket. However, desirable is a method which aims to update a trouble ticket by alarm messages generated by the same problem, and thus eliminates multiple trouble tickets for the same fault.

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Real Time Method for Handling Low Frequency Reoccurring Network Problems

Idea: Gonçalo Pereira, PT-Alfragide; Marco Soeima, PT-Alfragide

Telecommunication networks are subject to network failures which can result in a large number of alarm messages. Root cause analysis systems detect failures in the network and correlate them with all alarm messages generated as a consequence of failures. Some of these network failures are toggling. They appear and disappear over time, resulting in a new trouble ticket which is generated each time a failure appears. This problem can be solved by different types of integration filters. But in case of low frequency toggling problems, i.e. the frequency of problem occurrence is much lower, there are no existing systems dealing with this issue up to now. Besides systems dealing with high frequency toggling problems, methods are known which automatically update the alarm report status to indicate which alarm report has been handled by a trouble ticket. However, desirable is a method which aims to update a trouble ticket by alarm messages generated by the same problem, and thus eliminates multiple trouble tickets for the same fault.

In the following, a possible network scenario for the given problem is described. A DWDM (Dense Wavelength Division Multiplexing) backbone has a cable crack. It is considered that it occurs at t=0. The loss of signals is detected by each of the tributaries that are inputting different frequencies on this ...