| Total Network Management (TNM) is a very large product
developed by AT&T which facilitates early problem detection
and prompt repair of telecommunication network facilities and
switches. Network alarms are analysed to build up an overall
picture of the network's current failures.
Major telecommunication hubs employ a number of operators to
control maintenance of the network. Due to the volume of alarm
messages, operators were unable to keep pace with the flow of
information across their screens. An Event Correlation Expert
feature package, ECXpert has been realised and incorporated into
the TNM product family. ECXpert semi-automates the interpretation
of alarms and enables operators to concentrate on crucial network
failures.
TNM customers specify rules to co-ordinate their specific
telecommunication networks needs; these are then compiled and
acted upon by ECXpert together with live events. The event-simulation
and correlation provides a high-level view on network failures.
ECXpert combines C++ and IF/Prolog code to provide support for
object-oriented design with Prolog's reasoning and meta-language
manipulation.
The system is currently installed in over 30 sites in several US
telecommunication firms.
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