[rbridge] Consensus Check: MAC learning timers

[James Carlson]

Joe Touch writes:
> Eastlake III Donald-LDE008 wrote:
> > This is a check via the mailing list to confirm or refute an apparent
> > consensus at the Chicago meeting:
> > 
> >    MAC address remembering timers in TRILL should have the same
> >    configuration limits and default as in 802.1Q-2005.
> 
> Minor nits:
> 
> replace "remembering" with "cache persistence"
> 
> replace "default" with "defaults" (isn't there more than one timer?)
> 
> Minor question:
> 
> Do we want a stronger wording, e.g., MUST, SHOULD (vs should), etc?

What would be the basis of the MUST?  Is there something in TRILL that
falls apart if an implementation fails to heed this advice?  I don't
see what the exact interoperability issue would be.

Lacking a clear interoperability issue for TRILL itself, SHOULD seems
right to me.  It means that implementations are required to follow
that IEEE standard unless they've got a good reason to do otherwise.

-- 
James Carlson, Solaris Networking              <james.d.carlson at sun.com>
Sun Microsystems / 1 Network Drive         71.232W   Vox +1 781 442 2084
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