Re: [Lsr] Alvaro Retana's No Objection on draft-ietf-lsr-yang-isis-reverse-metric-04: (with COMMENT)

Christian Hopps <chopps@chopps.org> Sat, 11 December 2021 10:11 UTC

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From: Christian Hopps <chopps@chopps.org>
To: Alvaro Retana <aretana.ietf@gmail.com>
Cc: The IESG <iesg@ietf.org>, lsr-chairs@ietf.org, jgs@juniper.net, acee@cisco.com, draft-ietf-lsr-yang-isis-reverse-metric@ietf.org, lsr@ietf.org
Date: Sat, 11 Dec 2021 05:03:52 -0500
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Subject: Re: [Lsr] Alvaro Retana's No Objection on draft-ietf-lsr-yang-isis-reverse-metric-04: (with COMMENT)
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Alvaro Retana via Datatracker <noreply@ietf.org> writes:

> Alvaro Retana has entered the following ballot position for
> draft-ietf-lsr-yang-isis-reverse-metric-04: No Objection
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> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
>
> whole-lan is only applicable to multi-access interfaces.  I was expecting
> something similar to how "priority" is defined (in the main module), but I
> can't find that here.  Am I missing something?

Do you mean to make it conditional based on the interface type? I looked at doing this and I believe it would involve breaking apart the groupings, then duplicating that grouping data into received in TLV vs configuration, then leaving out the W flag bit config from the configuration grouping, and then conditionally augmenting that W bit config back in at each of the three locations under the interface.

This seems like a lot of "inelegant" changes to add this automated check to the YANG. The implementations are already bound by RFC8500 to DTRT WRT the W bit and LAN/Non-LAN interfaces. I think perhaps that's enough.

Thanks,
Chris.

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