On 4/20/22, 6:35 PM, "netmod on behalf of Jürgen Schönwälder"
<netmod-boun...@ietf.org on behalf of j.schoenwael...@jacobs-university.de>
wrote:
On Wed, Apr 20, 2022 at 02:51:35PM -0700, Andy Bierman wrote:
> On Wed, Apr 20, 2022 at 2:34 PM Jürgen Schönwälder <
> j.schoenwael...@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.
I suggest that people questioning the need to support scoped IPv6
addresses in IETF YANG data models write an I-D explaining why IETF
YANG data models do not need to support scoped IPv6 addresses and pass
the I-D through the IPv6 working group.
The question is not whether there is a single use case for IPv6 link local
addresses with a zone. The question is whether the base pattern for IPv6
addresses should include a zone and whether one was expected for all the
existing YANG model usages of inet:ipv6-address. I think that given the very
narrow scope, the answer is clearly no. Additionally, the zone is only
applicable to IPv6 link-local addresses yet the pattern in RFC 6991 allows the
zone for ALL IPv6 addresses. This is also clearly wrong.
Do you at least admit that IPv4 link-scoped addresses with zone have no useful
purpose? Or are you going to try and argue that the ever-popular 169.254.0.0/16
addresses are an absolute requirement for YANG models and expected for every
usage of inet:ipv4-address?
Acee
P.S. I would add that it is a good thing that syslog server can't be mapped to
a link-local address with a zone in the Open-Config model. In general, IPv6
services such as syslog servers should be mapped to global IPv6 addresses.
/js
--
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/>
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