Re: [IETFMIBS] Data caching with SNMPv3

[Juergen Schoenwaelder <j.schoenwaelder at jacobs-university.de>]

On Wed, Jul 22, 2009 at 02:30:11PM +0200, Hamid Mukhtar wrote:
 
> Does SNMPv3 specify any way of maintaining a temporary state (a
> cache) for a frequently queried object(s) at the agent side to
> reduce the management traffic.

> There are some implementations which support object caching,
> however, I am not sure if that is specified in the current SNMPv3 or
> the sub-agent protocols.

From the protocol perspective, the originating data source is the
instrumentation of the agent (or a sub-agent). Implementations often
to cache information in the instrumentation in order to reduce
overhead but that is clearly an implementation decision - nothing the
protocol cares about.

A feature that does exist and may or may not be relevant is the notion
of time filtered tables that allow to retrieve only those data objects
that changes since the last poll. But this is at the end a matter of
MIB design - not the protocol itself.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1, 28759 Bremen, Germany
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