Re: [netmod] usage of ip-address in openconfig

On Wed, Apr 20, 2022 at 2:34 PM Jürgen Schönwälder <
j.schoenwaelder@jacobs-university.de> wrote:

> I am not sure it helps to look at individual data models but since
> openconfig is often presented as getting things right, here is what I
> find in openconfig-system-logging.yang
>
>
Not sure why this missing feature is relevant.
There is an assertion (by some)  that the mis-naming is not a real problem
and the fact that 99% of the users misunderstand the details of the typedef
is not a problem.  There are others who assert that this misunderstanding
is an ongoing problem.

IMO the clear-cut solution provided by YANG (start over with a new
identifier) is an extremely
expensive solution, and does not address the root problem of the misuse.

The "patch" for the problem is for all servers to make sure they accept or
reject
a client-provided zone index, and do not silently ignore it.

Andy

  grouping logging-remote-config {
>     description
>       "Configuration data for remote log servers";
>
>     leaf host {
>       type oc-inet:host;
>       description
>         "IP address or hostname of the remote log server";
>     }
>   }
>
> with this definition of oc-inet:host in openconfig-inet-types
>
>   typedef host {
>     type union {
>       type ip-address;
>       type domain-name;
>     }
>     description
>       "The host type represents either an unzoned IP address or a DNS
>       domain name.";
>   }
>
> and hence they can't generally send log messages to a link-local log
> server.
>
> /js
>
> On Wed, Apr 20, 2022 at 02:11:05PM -0700, Andy Bierman wrote:
> > Hi,
> >
> > https://github.com/openconfig/public
> >
> > Looking at the actual YANG modules, I cannot find any usage
> > of ip-address-zoned (or any of the zoned variants).
> >
> > There are some places where inet:ip-address is used instead of
> > oc-inet:ip-address.
> > It is not clear if the intention is to allow a zone index.  It does not
> > look that way.
> >
> > It might be a good idea to reach out to SDOs using YANG to
> > find out if the use of ip-address instead of ip-address-no-zone
> > was intentional or not.
> >
> >
> > Andy
>
> > _______________________________________________
> > netmod mailing list
> > netmod@ietf.org
> > https://www.ietf.org/mailman/listinfo/netmod
>
>
> --
> Jürgen Schönwälder              Jacobs University Bremen gGmbH
> Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
> Fax:   +49 421 200 3103         <https://www.jacobs-university.de/>
>