This I-D seems to break core design assumptions of YANG data encoding
works and hence it seems to break all existing implementations. If you
define
leaf mtu { type uint32; }
then this is encoded as
<mtu>9000</mtu>
and there is not room for mixed content. I am stictly against any
solution that is not backwards compatible.
/js
On Thu, Feb 04, 2016 at 05:31:54PM -0500, Lou Berger wrote:
> Hello,
>
> A few of us in the routing area architecture yang DT discussed
> this draft yesterday and had a couple of comments, (note that the
> open config contributors who are members of the design team did
> not participate in this discussion):
>
> - that with tooling, it is possible for the models available
> using your extension have important similarities to the model
> conventions proposed by open config. We think it would be worth
> mentioning that tooling extensions could be used to auto generate
> both yang and tree formats that would be effectively available
> using the extension.
>
> - we think there is significant value in having a tools based
> approach which uses existing models, and which keeps config nodes
> in unmodified locations. Chris Hopps came up with the idea of a
> minor change to your extension where instead of adding 4 new
> config leaf values cfg-* replacing the original leaf, the three
> new leaf values would be added underneath a sibling node, perhaps
> called <leaf>-cfg. The benefit of this is that user code would be
> the same with respect to intended config with or without your
> extension. This also addresses the list index problem.
>
> - also from Chris: it would be useful to have a way of retrieving
> intended config along with any applied config that differs from
> the intended config, e.g. with-config-state=intended+diff-cfg.
>
> Thoughts?
>
> Lou (with Chris)
>
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--
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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