Re: snmpbulkget strange behavior

Jafar.Aliev <[email protected]>
Newsgroups gmane.network.net-snmp.user
Message-ID <45C1BA7495BD29478F7C176EAEFFB2D4213378E9@ombx01>
On 13.11.2012 22:06, Jafar.Aliev wrote:

> I've noticed a strange behavior of snmpbulkget. I can't call this a bug
> because it acts in compliance with snmp standard ( I think ). But not
> with human logic.
> And there are details:
>    - We've got our own SNMP agent that populate data in the end of SNMP
> tree ( lexicographically last in the whole SNMP tree )
>    - And last branch of this tree has variable numbers of leafs
>    - So we can't set exactly number of leafs for 'max-repetitions' so we
> set 'max-repetitions' with the margin.
>    - And what we get? - Empty list with 'End of MIB' message ( Calling
> this function from Perl API make 'noSuchName(2)' error ).
>    - There are no error if 'max-repetitions' smaller or equal to number
> of leafs in the requested subtree
>    - There are no error if we there are some other data after requested
> subtree that the margin can get into.
>
> Conclusions:
>    - As ordinal human being I expected that 'max-repetitions' parameter
> sets limit for operation, but not exactly number.
>    - Also I expected that reaching end of SNMP tree shouldn't produce
> 'noSuchName(2)' error and brake retrieval.
>
> Am I wrong? Any help would be appreciated.
>
> You can check this behavior with this command:
>
> snmpbulkget -Cr<number big enough> -cpublic localhost <your subtree OID>
>
>
> p.s Yes, I can use snmpbulkwalk. But it isn't the question. And
> snmpbulkwalk isn't native SNMP operation but bunch of sequential
> snmpbulkget operation.
>
> p.p.s. Excuse me for my English.

Good day.

Sorry folks, I found the problem ( in the proprietary SNMP Agent 
extension ). Issue closed.

Best regards.
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