Cisco Systems 78-11324-02 Manual De Usuario

Descargar
Página de 16
1-3
User Guide for Voice Health Monitor
78-11324-02
Chapter 1      Voice Health Monitor Overview
Overview of VHM
VHM correlates the collected information and generates events on voice
components that can be viewed in the Monitoring Console or on the Real-Time
Dashboard. Users can also view device level faults in the DFM Monitoring
Console. Alarms for both VHM and DFM can be seen from the Monitoring
Console.
VHM and DFM share many features as well as some components of their
architectures. VHM and its commonality with DFM are described in more detail
in
.
Event Correlation in VHM
Two types of events are generated by VHM: Compounds and Symptoms. One or
more Symptoms generate Compound or aggregated events. Symptoms are faults,
such as Power Supply Down or Temperature Too High, which generate
Environment Exceptions. Events are generated when fault conditions are detected
and the event correlation cycle is reached. The event correlation cycle in VHM
occurs every 30 seconds.
An example of an event correlation in VHM is TooManyInActivePhones. This
event is generated when phones registered with call managers in a cluster become
inactive and cross the InActivePhoneThreshold over a number of active phones.
In this event, all the call managers in the cluster are monitored to find out the total
number of phones that became inactive and compare that number with the total
number of active phones in the cluster.