On Thu, 2006-02-16 at 08:55 -0500, Kyle Tucker wrote:
> > Oh yes - one other thing.
>
> > If the Net-SNMP agent is built *without* the 'ucd-snmp/extensible'
> > module, then new 'agent/extend' module will step in and implement
> > the original UCD-SNMP-SNMP::extTable, using the new (caching)
> > approach. This should also address the duplicate execution problem.
>
> Does the above being returned by NET-SNMP-EXTEND-MIB indicate which
> module is being used? It appears from initial tests that my scripts
> now only execute once, so I can assume the new agent/extend is being
> used?
If you're querying the NET-SNMP-EXTEND-MIB, then this uses the
agent/extend module. End Of Story.
If you're querying the UCD-SNMP-MIB::extTable, then it depends
on how the agent was compiled. By default, the agent includes
both agent/extend and ucd-snmp/extensible - in which case the
UCD-SNMP-MIB::extTable is handled by the ucd-snmp/extensible
module (and will invoke the script twice).
If the agent was configured using
--with-out-mib-modules=ucd-snmp/extensible
then the agent/extend module will be used for *both* the
NET-SNMP-EXTEND-MIB and the UCD-SNMP-MIB::extTable. In this
case, getting extOutput and extResult will only invoke the
command once. But this is not the default (yet!).
In due course, we plan to drop ucd-snmp/extensible from the
default build, and allow agent/extend to take care of both
tables. But this does have compatibility implications (when
using the "exec OID ..." form), so we're taking it slowly.
Dave
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