Re: Maximum Row Size?

["Randy Presuhn" <randy_presuhn@mindspring.com>]

Hi -

> From: "Sharon Chisholm" <schishol@nortelnetworks.com>
> To: <ietfmibs@ops.ietf.org>
> Sent: Tuesday, June 15, 2004 7:37 AM
> Subject: Maximum Row Size?
>
> hi
>
> I've never been much of a bit counter, but I'm currently looking at a MIB
> that, depending on how it is designed, could end up with fairly big rows. I
> know I've seen people calculating this sort of thing in the past. Couple
> questions:
>
> 1. Is this something we should still worry about?

Two cases come to mind:
   1) if create-and-wait support is not a requirement (for agent simplicity)
   2) if loose "row-synchronized" sampling is a requirement (i.e., one needs to
       retrieve all the elements from a row with minimal time skew) (not to be
       confused with "hard" synchronization, which would require additional
       gewgaws that could make it work even with multiple requests)

> 2. If so, what's the upper limit one should aim for size of a table row?

I'd be conservative and go with the 484 octet limit from RFC 1157,
though I think in general it's better to design the MIB to avoid both
of the cases above.

Randy