Cabletron Systems CBU-NM User Manual page 14

CBU-NM
User Manual
1.5.1 Alarms
When a network alert message arrives, PCNC uses the information you
have entered into the Network Database to identify the source of the
message. It then passes the message to a separate module which
decodes the alert. Finally it logs the message as an alarm in the Alarm
Database. Once the alerts have been translated and logged, you can
view and filter the resulting alarms using the alarm windows.
L o c a l
Port
R e m o t e
Port
TCP/IP
1.6 What PCNC does
When an alarm arrives, PCNC alerts you with an audible warning (if
enabled) and a flashing panel on the toolbar. An alarm icon flashes next
to the originating device in the Network Inspector window.
A description of the alarm appears in the Unacknowledged Alarms
window and in the Alarm Log windows.
source and type of alarm allows you to decide quickly what action (if any)
needs to be taken. You can then inform PCNC that you have read the
message by 'acknowledging' the alarm, and the alarm then disappears
from the Unacknowledged Alarms window. When all alarms have been
acknowledged, the panel no longer flashes and the sound stops.
You can view all recent alarms (before and after they have been
acknowledged) by looking at either the Network Alarm Log or Device
Alarm Log windows. An alarm icon, identical to that displayed next to
the device, flashes beside unacknowledged alarms.
1–4 ii
Control
Link
Processor
Remote
Link
S N M P
Network
Link
Database
Figure 1.3 - Alarm Processing
Alert
Alarm
Database
Clear information about the
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