Re: queries to only one table

Dave Shield <[email protected]>
Newsgroups gmane.network.net-snmp.user
Message-ID <[email protected]>
On 2 March 2011 07:56, Egor <[email protected]> wrote:
> Ok. So, is there way to query only one table with some snmp tool ?

"Query one table" from the point of view of the client?
Or from the point of view of the agent?

As far as the client is concerned, then both "snmpwalk"
and "snmptable" will do this.   They will report the contents
of one table, and nothing else.

But both of them rely on "walking off the end" of the table
to detect when to stop.   So as far as the agent is concerned,
they query both the table concerned *and* one extra value
(either a table, or a scalar object - depending on what comes next).


The only way to avoid this is to know how many rows
there are in the table before you start.   If you know this,
then a single GetBulk request can retrieve the whole
table (and nothing else), without needing to touch the
next table/object.

   If you don't know the number of rows, then you've essentially
got to walk off the end of the table as described above.
That's the only way to know that you have reached the end.

Dave

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