Evolution of the Codebook Technique for Automatic Fault Localization

Author

Monacelli, Luca ; Reali, Gianluca

Author_Institution

Altran Italia S.p.A., Rome, Italy

Volume

15

Issue

4

fYear

2011

fDate

4/1/2011 12:00:00 AM

Firstpage

464

Lastpage

466

Abstract

In this letter we present an evolution of the classical Codebook Technique for automatic Fault Localization, which is a well-known problem in the context of Network Fault Management. In particular, we propose two heuristics which handle multiple simultaneous faults and probabilistic fault-symptom dependencies (also in presence of lost/spurious symptoms). We have evaluated their performance by applying them to the IMS control layer of a real national-wide Next Generation Network (NGN) deploying VoIP telephony services.

Keywords

Internet telephony; codes; fault diagnosis; next generation networks; probability; telecommunication network management; IMS control layer; VoIP telephony service; automatic fault localization; codebook evolution; codebook technique; lost symptom; network fault management; probabilistic fault-symptom dependency; real national-wide next generation network; spurious symptom; Correlation; Decoding; Hamming distance; Next generation networking; Noise; Probabilistic logic; Strontium; Fault localization; NGN; codebook; event correlation; network management;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2011.021111.101995

Filename

5719522