Chapter 1
Overview
Table of Contents
1.1 Functions of Fault Management
The fault management system collects fault information from all the NEs in the managed
network in near real-time, such as boards, links, databases, and servers, and then
displays the collected fault information in the format of alarm or notification. The fault
management system helps the system administrator quickly locate and resolve faults
in the managed network.
It also provides telecom operators, network management
departments, and equipment vendors with correct and timely alarm data to ensure stable
network operations.
1.2 Fault Indication
The fault management system indicates a fault or event occurring in the network in the
form of alarm or notification.
1.2.1 Alarm
A fault is indicated in the form of alarm when it persists and affects the reliability and
services of the system. An alarm will be cleared only after the fault is resolved. Immediate
troubleshooting is required when alarms occur.
1.2.2 Notification
A notification indicates a non-repeatable or instantaneous fault or event in the system, for
example, board reset and signaling overload. Such a fault or event is normally caused by
a sudden environment change or other accidental factors. No special handling is required
because the fault or event causing a notification can be automatically handled by the
system. However, a frequently-reported notification requires troubleshooting.
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