On 5/3/18, 2:40 PM, "Ladislav Lhotka" <[email protected]> wrote:
On Thu, 2018-05-03 at 18:00 +0000, Acee Lindem (acee) wrote:
> Hi Lada,
>
> So you have a base identify of foo-type and subordinates of foo-type-1,
foo-
> type-2, ... foo-type-9. You have a data leaf that type identityref
foo-type
> but the actual instantiation is not one of the known foo-types. Should a
foo-
> type-unknown be defined to return for this case or should one just return
foo-
> type?
Hmm, the actual instantiation looks like invalid data. If the leaf is an
identityref with "foo-type" as its base, then permitted values are exactly
those
"foo-type-[1-9]".
The whole reason to use identities rather than enums is to allow for
incremental extension. With routing protocols, it is possible if not likely to
have an instantiation of a data leaf that is unknown. So, we absolutely need to
handle this case.
Acee
If the server supports a particular type, then I would expect it to
implement a
module where the identity corresponding to that type is defined.
Lada
>
>
> Thanks,
> Acee
>
> On 5/3/18, 1:49 PM, "netmod on behalf of Ladislav Lhotka"
<netmod-bounces@iet
> f.org on behalf of [email protected]> wrote:
>
> Hi Acee,
>
> I am not sure what you mean by unknown identities. In general, the
> identity used
> as the base of an identityref (or in Xpath functions
derived-from/derived-
> from-
> or-self) should be the most general identity that can match at the
given
> place.
>
> Do you have any example illustrating your case?
>
> Lada
>
>
> On Thu, 2018-05-03 at 17:30 +0000, Acee Lindem (acee) wrote:
> > Let’s say one define a base identity with a hierarchy of
identifyref’s
> using
> > it. This will allow for augmentation in future models. Should one
also
> define
> > an identityref for the class of unknown identities? Or, should one
> simply
> > return the lowest parent in the hierarchy matching the value? Many
> times, this
> > would be the base identity.
> >
> > Thanks,
> > Acee
> > _______________________________________________
> > netmod mailing list
> > [email protected]
> > https://www.ietf.org/mailman/listinfo/netmod
> --
> Ladislav Lhotka
> Head, CZ.NIC Labs
> PGP Key ID: 0xB8F92B08A9F76C67
>
> _______________________________________________
> netmod mailing list
> [email protected]
> https://www.ietf.org/mailman/listinfo/netmod
>
>
--
Ladislav Lhotka
Head, CZ.NIC Labs
PGP Key ID: 0xB8F92B08A9F76C67
_______________________________________________
netmod mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/netmod
