Collecting Group History Statistics On An Interface - Cisco WS-CBS3032-DEL Software Configuration Manual

Chapter 31 Configuring RMON
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

Collecting Group History Statistics on an Interface

You must first configure RMON alarms and events to display collection information.
Beginning in privileged EXEC mode, follow these steps to collect group history statistics on an interface.
This procedure is optional.
Command
Step 1
configure terminal
Step 2 interface interface-id
Step 3 rmon collection history index
[buckets bucket-number] [interval
seconds] [owner ownername]
Step 4 end
Step 5
show running-config
Step 6
show rmon history
Step 7 copy running-config startup-config
To disable history collection, use the no rmon collection history index interface configuration
command.
OL-13270-06
Purpose
Enter global configuration mode.
Specify the interface on which to collect history, and enter interface
configuration mode.
Enable history collection for the specified number of buckets and time
period.
For index, identify the RMON group of statistics The range is 1 to
•
65535.
(Optional) For buckets bucket-number, specify the maximum number
•
of buckets desired for the RMON collection history group of
statistics. The range is 1 to 65535. The default is 50 buckets.
• (Optional) For interval seconds, specify the number of seconds in
each polling cycle. The range is 1 to 3600. The default is 1800
seconds.
(Optional) For owner ownername, enter the name of the owner of the
•
RMON group of statistics.
Return to privileged EXEC mode.
Verify your entries.
Display the contents of the switch history table.
(Optional) Save your entries in the configuration file.
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
Configuring RMON
31-5