31-4
Cisco IE 3000 Switch Software Configuration Guide
OL-13018-03
Chapter 31 Configuring RMON
Configuring RMON
To disable an alarm, use the
no rmon alarm
number
global configuration command on each alarm you
configured. You cannot disable at once all the alarms that you configured. To disable an event, use the
no rmon event
number
global configuration command. To learn more about alarms and events and how
they interact with each other, see RFC 1757.
You can set an alarm on any MIB object. The following example configures RMON alarm number 10
by using the
rmon alarm
command. The alarm monitors the MIB variable
ifEntry.20.1
once every 20
seconds until the alarm is disabled and checks the change in the variable’s rise or fall. If the
ifEntry.20.1
value shows a MIB counter increase of 15 or more, such as from 100000 to 100015, the alarm is
triggered. The alarm in turn triggers event number 1, which is configured with the
rmon event
command. Possible events can include a log entry or an SNMP trap. If the
ifEntry.20.1
value changes
by 0, the alarm is reset and can be triggered again.
Switch(config)#
rmon alarm 10 ifEntry.20.1 20 delta rising-threshold 15 1
falling-threshold 0 owner jjohnson
The following example creates RMON event number 1 by using the
rmon event
command. The event
is defined as
High ifOutErrors
and generates a log entry when the event is triggered by the alarm. The
user
jjones
owns the row that is created in the event table by this command. This example also generates
an SNMP trap when the event is triggered.
Switch(config)#
rmon event 1 log trap eventtrap description "High ifOutErrors" owner
jjones
Step 3
rmon event
number
[
description
string
] [
log
] [
owner
string
]
[
trap
community
]
Add an event in the RMON event table that is
associated with an RMON event number.
•
For
number
, assign an event number. The range
is 1 to 65535.
•
(Optional) For
description
string
, specify a
description of the event.
•
(Optional) Use the
log
keyword to generate an
RMON log entry when the event is triggered.
•
(Optional) For
owner
string
, specify the owner
of this event.
•
(Optional) For
trap
community
, enter the
SNMP community string used for this trap.
Step 4
end
Return to privileged EXEC mode.
Step 5
show running-config
Verify your entries.
Step 6
copy running-config startup-config
(Optional) Save your entries in the configuration
file.
Command
Purpose
