FTOS Configuration Guide for the C-Series - Force10 Networks

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:
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. Default
is a null-terminated string.
FTOS Configuration Guide, version 7.7.1.0 129