Re: Gen-Art LC review: draft-ietf-netmod-yang-metadata-04

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Yes, thanks.

On 3/11/16 9:04 AM, Ladislav Lhotka wrote:
On 11 Mar 2016, at 14:07, Juergen Schoenwaelder <j.schoenwaelder@xxxxxxxxxxxxxxxxxxxx> wrote:

On Fri, Mar 11, 2016 at 11:15:28AM +0000, tom p. wrote:
Lada, Robert

The other angle from which this might be approached is that the I-D
already says

"   Using the "type" statement, a type is specified for the annotation
   value according to the same rules as for YANG "leaf" type. "

while rfc6020bis says

"   The "leaf" statement is used to define a scalar variable of a
   particular built-in or derived type."

so if you know your YANG off by heart, then you will know that
annotations must be scalar.  I agree that the text needs to be clearer.
Perhaps,
OLD
"   o  annotations are scalar values and cannot be further structured;"
NEW
"Annotations obey the same rules as for a YANG "leaf" type [rfc6020bis
s.7.6] and so are limited to scalar variables."
There is no 'leaf type' in YANG. YANG has leaf nodes in the schema
tree. An annotation is not a node in the schema tree. Perhaps
something like this:

  An annotation carries a single value. The type substatement, which
  must be present, takes as an argument the name of an existing
  built-in or derived type and the value of the annotation must match
  this type. See Section 7.4 of [RFC6020bis] for details.
Looks good, thanks. Robert, Tom, do you think this text is sufficient?

Lada

/js

--
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/>
--
Ladislav Lhotka, CZ.NIC Labs
PGP Key ID: E74E8C0C








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