Status and Statistics
RMON
STEP 1
STEP 2
STEP 3
Cisco 500 Series Stackable Managed Switch Administration Guide
Alarm counters can be monitored by either absolute values or changes (delta) in
the counter values.
To enter RMON alarms:
Click Status and Statistics > RMON > Alarms. All previously-defined alarms are
displayed. The fields are described in the Add RMON Alarm page below. In
addition to those fields, the following field appears:
•
Counter Value—Displays the value of the statistic during the last sampling
period.
Click Add.
Enter the parameters.
•
Alarm Entry No.—Displays the alarm entry number.
•
Interface—Select the type of interface for which RMON statistics are
displayed.
•
Counter Name—Select the MIB variable that indicates the type of
occurrence measured.
•
Counter Value—Number of occurrences.
•
Sample Type—Select the sampling method to generate an alarm. The
options are:
-
Absolute—If the threshold is crossed, an alarm is generated.
-
Delta—Subtracts the last sampled value from the current value. The
difference in the values is compared to the threshold. If the threshold was
crossed, an alarm is generated.
•
Rising Threshold—Enter the value that triggers the rising threshold alarm.
•
Rising Event—Select an event to be performed when a rising event is
triggered. Events are created in the Events page.
•
Falling Threshold—Enter the value that triggers the falling threshold alarm.
•
Falling Event—Select an event to be performed when a falling event is
triggered.
•
Startup Alarm—Select the first event from which to start generation of
alarms. Rising is defined by crossing the threshold from a low-value
threshold to a higher-value threshold.
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