3Com 5500-EI PWR Reference Manual page 952

threshold-value2: Lower threshold, in the range 0 to 2147483647.
event-entry2: Index of the event entry that corresponds to the falling threshold, in the range 0 to 65535.
forever: Specifies the corresponding RMON alarm instance is valid permanently.
cycle: Specifies the corresponding RMON alarm instance is valid periodically.
cycle-period: Life time (in seconds) of the RMON alarm instance, in the range 0 to 2147483647.
owner text: Specifies the owner of the alarm entry, a string of 1 to 127 characters.
Description
Use the rmon prialarm command to create an extended entry in an extended RMON alarm table. If you
do not specify the owner text keyword/argument combination, the owner of the entry is displayed as
"null".
Use the undo rmon prialarm command to remove an extended alarm entry.
Before adding an extended alarm entry, you need to use the rmon event command to define the
events to be referenced by the entry.
Make sure the node to be monitored exists before executing the rmon event command.
You can define up to 50 extended alarm entries.
With an extended alarm entry defined in an extended alarm group, the device performs the following
operations accordingly:
Sampling the alarm variables referenced in the defined extended alarm expression
(prialarm-formula) once in each period specified by the sampling-timer argument.
Performing operations on the sampled values according to the defined extended alarm expression
(prialarm-formula)
Comparing the operation result with the set thresholds and perform corresponding operations, as
described in
Table 2-8 Operation result and corresponding operation
The operation result is larger than or equal to the
set upper threshold (threshold-value1)
The operation result is smaller than or equal to
the set lower threshold (threshold-value2)
Examples
# Add the extended alarm entry numbered 2 as follows:
Perform operations
((1.3.6.1.2.1.16.1.1.1.4.1)*100).
Sampling interval: 10 seconds
Rising threshold: 50
Table 2-8.
Comparison
on the corresponding
Triggering the event identified by the
event-entry1 argument
Triggering the event identified by the
event-entry2 argument
alarm variables
2-13
Operation
using the expression