On Wed, Nov 11, 2015 at 09:28:57AM +0000, William Lupton wrote:
> All,
>
> We would much appreciate comments and suggestions on the question posed below.
>
[...]
Good question. Is this question comparable to IEEE 802.3 interfaces
and Medium Attachment Units (MAUs)? In the past, I think we have seen
different approaches and I am not sure there is agreement on a common
approach. For 802.3 MAUs, MAU details were modeled in data models
extending a single interface. For other technologies, interface
layering seemed to be more appropriate. It would be nice if there
would a common understanding how to model interface specifics
consistently but I am afraid we have no common model. The
ietf-interfaces module essentially allows both approaches. It leaves
it open, however, to decide which approach is appropriate.
/js
PS: A pure layering approach would treat an IP interface as an
interface layered on top of say an IEEE 802.3 interface but
the ietf-ip module does not really force this since many
implementations do not expose this layering. If I would do
a clean slate design, I would likely, from a architectural
point of view, go with a layering approach.
--
Juergen Schoenwaelder Jacobs University Bremen gGmbH
Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany
Fax: +49 421 200 3103 <http://www.jacobs-university.de/>
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