Previous Page: Monitoring Fundamentals: Alarm Master Choice: T/Mon NOC
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Why You Need a Real Alarm Master - NOT Switch Scan Points or an SNMP Manager

It's tempting to try to build a home-grown alarm master out of equipment you already have, like your switch equipment or an SNMP manager. But these won't give you the best visibility of your network. Here's why.

Switch scan points have limited capacity and flexibility

A telecom switch remote access node only supports five or six alarm points. You'll quickly outgrow those five or six alarm points. You'll quickly to tie multiple sensors to one point. At that point, an alarm can mean anything - maybe the building is on fire ... or that the battery is just low.

SNMP managers don't support the functions you need

Off-the-shelf SNMP managers don't support the critical alarm presentation functions. Here are some of the features you can't find on a standard SNMP manager:

1. Detailed alarm descriptions, including date/time stamping, location and severity.

2. Immediate notification of change of state (COS) alarms.

3. Continuously updated list of current standing alarms.

4. Multi-user security.

5. Alarm sorting and nuisance alarm filtering

Next Page: Monitoring Fundamentals: How to Plan Your Alarm Monitoring
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