ECXPERT: EXPLOITING EVENT CORRELATION IN TELECOMMUNICATIONS Yosfi Nygate A T & T . Bell Laboratories Abslract Today's competitive market place has forced the telecommunications industry to improve their service and reliability. One step that telecommunications companies have taken to reduce network failures is the installation of operations centers to collecta.r~ from network elemertm. These centare are staffed by network managers who monitor network activityby correlating alarms ecross various operational disciplines (switch, facility, uaffi ) and relating them to a common cause. Accurate anaiysis is often difficult due to the volume of data and complexity of problems. ECXpert is a product recently developed at AT&T to help network mmutgers monitor emd analyze e l m , take corrective actions, and minimize disruptions to the network. Successful implememtation of evertt correlation has increased customer revenue because erouble isolation cmt be done faster, resulting in quicker reslmafion of service. The ~ of ECXpert is a high level language with which tu~s specify network events and their correlation with alarms. The system is written in Prelog and C++, a powerful combination which allowed development to ~ on time mui in budget. It has been deployed, in network managemertt centers throughout the U.S.
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Ecxpert: exploiting event correlation in telecommunications
Nygate, Yossi
Follow ACM SIGAPP Applied Computing Review
, Volume 2 (2)
Association for Computing Machinery – Sep 1, 1994
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