Reference Guide

Remote Monitoring (RMON) | 801
Set rmon alarm
To set an alarm on any MIB object, use the rmon alarm or rmon hc-alarm command in GLOBAL
CONFIGURATION mode. To disable the alarm, use the
no form of this command:
The following example configures an RMON alarm using the rmon alarm command.
Command Syntax Command Mode Purpose
[no] rmon alarm number variable
interval {delta | absolute}
rising-threshold [value event-number]
falling-threshold value event-number
[owner string]
or
[no] rmon hc-alarm number variable
interval {delta | absolute}
rising-threshold value event-number
falling-threshold value event-number
[owner string]
CONFIGURATION Set an alarm on any MIB object. Use the no form of
this command to disable the alarm.
Configure the alarm using the following optional
parameters:
• number: Alarm number, should be an integer
from 1 to 65,535, the value must be unique in the
RMON Alarm Table
• variable: The MIB object to monitor—the
variable must be in the SNMP OID format. For
example, 1.3.6.1.2.1.1.3. The object type must be
a 32-bit integer for the rmon alarm command
and 64 bits for the rmon hc-alarm command.
• interval: Time in seconds the alarm monitors the
MIB variable, the value must be between 1 to
3,600.
• delta: Tests the change between MIB variables,
this is the alarmSampleType in the RMON Alarm
table.
• absolute: Tests each MIB variable directly, this is
the alarmSampleType in the RMON Alarm table.
• rising-threshold value: Value at which the
rising-threshold alarm is triggered or reset. For
the rmon alarm command this is a 32-bits value,
for rmon hc-alarm command this is a 64-bits
value.
• event-number: Event number to trigger when the
rising threshold exceeds its limit. This value is
identical to the alarmRisingEventIndex in the
alarmTable of the RMON MIB. If there is no
corresponding rising-threshold event, the value
should be zero.
• falling-threshold value: Value at which the
falling-threshold alarm is triggered or reset. For
the rmon alarm command, this is a 32-bits
value, for rmon hc-alarm command this is a
64bits value.
• event-number: Event number to trigger when the
falling threshold exceeds its limit. This value is
identical to the alarmFallingEventIndex in the
alarmTable of the RMON MIB. If there is no
corresponding falling-threshold event, the value
should be zero.
• owner string: (Optional) Specifies an owner for
the alarm, this is the alarmOwner object in the
alarmTable of the RMON MIB. D
efault is a
null-terminated string.