EEM command to read OID value

Question

Hi,
I am trying to change SNMPv2 community string on 6509 remotely, without using expect script. I tried EEM applet (we cannot use TCL scripts), but it does not work.
EEM command "action 10 info snmp oid 1.3.6.1.2.1.1.4 get-type exact" is supposed to store the result into an environment variable. It does not. Or at least not in the one that is documented. Is it a bug? We have IOS 12.2(17r)SX5.  To get EEM version i ran "sh event manager version" and got  "eem: (v240_throttle) 2.21.32". Does it mean i have EEM version 2.21?
Thanks,

Answer 1

You would need to save that data into a context.  You will need EEM 3.0 or higher for this, but you could do something like:
action 1.0 info snmp oid 1.3.6.1.2.1.1.4.0 get-type exact
action 2.0 set snmp_res1 $_info_snmp_value
action 3.0 info snmp oid 1.3.6.1.2.1.1.5.0 get-type exact
action 4.0 set snmp_res2 $_info_snmp_value
action 5.0 context save key SNMPCTX variable snmp_res*
To retrieve the previously saved values, use:
action 1.0 handle-error type ignore
action 2.0 context retrieve key SNMPCTX
action 3.0 if $_error ne FH_EOK
action 4.0  set snmp_res1 0
action 5.0  set snmp_res2 0
action 6.0 end
action 7.0 handle-error type exit