Re: [netmod] [Netconf] LC of NDMA NETCONF/RESTCONF drafts

[Juergen Schoenwaelder <[e-mail]>]

On Thu, Feb 08, 2018 at 10:55:53AM -0800, Andy Bierman wrote:
> On Thu, Feb 8, 2018 at 10:44 AM, Juergen Schoenwaelder <
> [e-mail]> wrote:
> 
> > On Thu, Feb 08, 2018 at 09:11:58AM -0800, Andy Bierman wrote:
> > > >
> > > Then remove the text that says an error is sent if with-defaults
> > attempted
> > > on <operational>.
> > > None of this new text needs to go into NMDA. It can be a vendor-specific
> > > mystery what gets set as origin=default.  Implementors can read RFC 6243
> > > and figure it out on their own.
> >
> > As I said, I am absolutely fine with the option of being silent about
> > with-defaults and if needed someone can spin an update of RFC 6243.
> 
> This is not needed.
> 
> 
>    If the "with-defaults" parameter
>    is present in a request to such a datastore, then the server MUST
> 
>       return an error, as specified in "ietf-netconf-nmda" (see Section 4
> <https://tools.ietf.org/html/draft-ietf-netconf-nmda-netconf-03#section-4>).
> 
> 
>          The 'with-defaults' parameter does not apply to operational
>          datastores. If the 'with-defaults' parameter is present in a
>          request to an operational datastore, then the server MUST
>          return an <rpc-error> element with an <error-tag> value of
>          'invalid-value'.";
> 
> 
> 
> There are 2 places in the draft that say MUST send an error.
> You need to add detailed text explaining what "harm to the Internet"
> is caused if this parameter is accepted. You cannot use MUST
> unless interoperability is harmed by allowing a server to
> omit response data containing the YANG default value.
> Please explain all the problems solved by this MUST constraint.
> 
> 
> Please explain in detail in the draft WHY
> 
>          The 'with-defaults' parameter does not apply to operational
>          datastores.
> 
> This assertion is false.

I don't get your message. Trying again: I am fine to remove all text
that talks about with-default and if needed someone can spin an update
of RFC 6243 to use with-default.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: [phone]         Campus Ring 1 | 28759 Bremen | Germany
Fax:   [phone]         <https://www.jacobs-university.de/>