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New Member

EEM to send multiple snmp OID's in one trap

I ran into a wall with trying to figure this one out and hopefully someone can provide some insight. I am trying to send one snmp trap with multiple OID's using EEM. I've found two ways to do this but my main method isn't working.

Essentially, this is what I want.

event manager applet send-custom-trap

event none

action 1.0 info type snmp oid 1.3.6.1.2.1.31.1.1.1.18.1 get-type exact

action 2.0 info type snmp var vbinds oid 1.3.6.1.4.1.33333.2.0 string $_info_snmp_value

action 3.0 info type snmp oid 1.3.6.1.2.1.31.1.1.1.18.2 get-type exact

action 4.0 info type snmp var vbinds oid 1.3.6.1.4.1.33333.3.0 string $_info_snmp_value

action 5.0 info type snmp trap enterprise-oid 1.3.6.1.4.1.33333.1 generic-trapnum 6 specific-trapnum 1 trap-oid 1.3.6.1.4.1.9.33333.1.0.1 trap-var vbinds

The problem here is the string values of the snmp variable are not referencing the $_info_snmp_value variable. I also tried setting the value of these variables to another variable but still not working. Here's the output.

############# OUTPUT

R1#

sysUpTime.0 = 3007074

snmpTrapOID.0 = cisco.33333.1.0.1

enterprises.33333.2.0 = $_info_snmp_value

enterprises.33333.3.0 = scott

sysUpTime.0 = 3007074

snmpTrapOID.0 = cisco.33333.1.0.1

enterprises.33333.2.0 = $_info_snmp_value

enterprises.33333.3.0 = $_info_snmp_value

I can't seem to get the referenced OID value from the variable that I want. I know that $_info_snmp_value does have the correct data stored in it from this below config.

event manager applet send-custom-trap

  event none

action 1.0 info type snmp oid 1.3.6.1.2.1.31.1.1.1.18.1 get-type exact

action 2.0 set oid1 $_info_snmp_value

action 3.0 info type snmp oid 1.3.6.1.2.1.31.1.1.1.18.2 get-type exact

action 4.0 set oid2 $_info_snmp_value

action 5.0 snmp-trap intdata1 0 intdata2 0 strdata "$oid1, $oid2"

############# OUTPUT

R1#

sysUpTime.0 = 2982412

snmpTrapOID.0 = cEventMgrMIB.0.2

ceemHistoryEventEntry.2.10 = 131

ceemHistoryEventEntry.3.10 = 0

ceemHistoryEventEntry.4.10 = 0

ceemHistoryEventEntry.5.10 = 0

ceemHistoryEventEntry.6.10 =

ceemHistoryEventEntry.7.10 = applet: send-custom-trap

ceemHistoryEventEntry.9.10 = 0

ceemHistoryEventEntry.10.10 = 0

ceemHistoryEventEntry.11.10 = F00000, F01

ceemHistoryEventEntry.13.10 = 0

ceemHistoryEventEntry.14.10 = 0

ceemHistoryEventEntry.15.10 = 0

ceemHistoryEventEntry.16.10 = 0

The problem with the second config is that my snmp trap manager doesn't parse the fields. If it did, i could take F00000 and F01 and send an email alert with this info formatted correctly. However, the manager can only take the field data and present it as whole, so I would be sending "F00000, F01". The first config set can send the data in multiple fields but just can't get the actual OID value.

I just can't seem to get the right combination with these two, or rather the first config set to reference the snmp get values. Thoughts?

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

EEM to send multiple snmp OID's in one trap

For what you want to do, you'll need to use Tcl.  Unfortunately, the applet code does not look at the values of the varbinds as a variable exapnsion field, so any variable syntax is passed as-is.  However, if you conver this same applet to Tcl using http://www.marcuscom.com/convert_applet , it will work.

2 REPLIES
Cisco Employee

EEM to send multiple snmp OID's in one trap

For what you want to do, you'll need to use Tcl.  Unfortunately, the applet code does not look at the values of the varbinds as a variable exapnsion field, so any variable syntax is passed as-is.  However, if you conver this same applet to Tcl using http://www.marcuscom.com/convert_applet , it will work.

New Member

EEM to send multiple snmp OID's in one trap

Thanks Joseph!

That conversion script reduced my learning curve on TCL dramatically. Not only do I have the data I want now, I'm doing a bunch more with it too. Much thanks!

Scott

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