Configuring Rmon Alarms; Figure 6 Graphport Dialog Box-Rmon History Tab - Nortel Passport 8600 Configuring

42 Chapter 2 Configuring RMON
Figure 6 GraphPort dialog box—RMON History tab
10.10.40.34

Configuring RMON alarms

Alarms are useful when the network administrator needs to know when the value
of some variable goes out of range. RMON alarms can be defined on any MIB
variable that resolves to an integer value. In other words, string variables (such as
system description) cannot be used as alarm variables.
All alarms share the following characteristics:
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•
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When alarms are "fired," or activated, you can view the activity in a log or a trap
log, or you can create a script to notify you by beeping a console, sending e-mail,
or calling a pager.
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The RMON History tab opens
An upper and lower threshold value defined on it
A corresponding rising and falling event
An alarm interval or polling period
(Figure 6).