EEM Question on OID

From: Grammer, Christopher <cgrammer_at_essilorusa.com>
Date: Tue, 7 Sep 2010 00:21:49 -0500

All,

I have been studying EEM because I have read several people talking about
EEM and measuring CPU to trigger an event.

Well... its right in the doc CD(see below).
Its not under 12.4, but it is under 12.4T IOS management configuration
guide.
My question is: How am I to figure out the OID?

I enabled SNMP on a router and used the command:

show snmp mib | i CPU

cpmCPUTotalTable.1.2
cpmCPUTotalTable.1.3
cpmCPUTotalTable.1.4
cpmCPUTotalTable.1.5
cpmCPUTotalTable.1.6
cpmCPUTotalTable.1.7
cpmCPUTotalTable.1.8
cpmCPUTotalTable.1.9
cpmCPUTotalTable.1.10
cpmCPUTotalTable.1.11
cpmCPUThresholdTable.1.2
cpmCPUThresholdTable.1.3
cpmCPUThresholdTable.1.4
cpmCPUThresholdTable.1.5
cpmCPUThresholdTable.1.6
cpmCPUHistoryTable.1.2
cpmCPUHistoryTable.1.3
cpmCPUHistoryTable.1.4
cpmCPUHistoryTable.1.5
cpmCPUProcessHistoryTable.1.2
cpmCPUProcessHistoryTable.1.3
cpmCPUProcessHistoryTable.1.4
cpmCPUProcessHistoryTable.1.5

but this seems to return only SNMP variables and not OIDs.
We cant possible be required to memorize 9 trillion OIDs, so there must be a
way to find them.
Or, is this example "THE OID" for CPU?

http://www.cisco.com/en/US/docs/ios/netmgmt/configuration/guide/nm_eem_policy_cli_ps6441_TSD_Products_Configuration_Guide_Chapter.html

SNMP Event Detector

The following example shows how to specify an EEM applet to run when the CPU
usage is greater than 75 percent. When the EEM applet runs, the CLI
commands *enable* and *show cpu processes* are run, and an e-mail containing
the result of the *show cpu processes* command is sent to an engineer.

event manager applet snmpcpuge75

 event snmp oid 1.3.6.1.4.1.9.9.109.1.1.1.1.3.1 get-type exact
entry-op ge entry-val 75
poll-interval 10

 action 1.0 cli command "enable"

 action 2.0 cli command "show process cpu"

 action 3.0 mail server "192.168.1.146" to "engineer_at_cisco.com" from
"devtest_at_cisco.com"
subject "B25 PBX Alert" body "$_cli_result"

Thanks for the help in advance!

Chris

Blogs and organic groups at http://www.ccie.net
Received on Tue Sep 07 2010 - 00:21:49 ART

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