[DNSOP] Mike Bishop's Discuss on draft-ietf-dnsop-cds-consistency-09: (with DISCUSS and COMMENT)

[Mike Bishop via Datatracker <[e-mail]>]

Mike Bishop has entered the following ballot position for
draft-ietf-dnsop-cds-consistency-09: Discuss

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DISCUSS:
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Thanks for the work on this draft. I have one DISCUSS point that I think will
help improve the draft and is (hopefully) easily addressed.

In Section 3.2, we see the following text:

> CSYNC-based updates may cause validation or even insecure resolution to break
(e.g., by changing the delegation to a set of nameservers that do not serve
required DNSKEY records or do not know the zone at all). Parental Agents SHOULD
check that CSYNC-based updates, if applied, do not break the delegation.

Is there a definition of how the Parental Agent "check[s] that ... updates ...
do not break the delegation"? I would have expected a more concrete instruction
here, such as repeating the same queries on the proposed delegation targets and
ensuring that they, too, return records consistent with what was found on the
existing nameservers. Perhaps this already exists somewhere and a reference is
sufficient?


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COMMENT:
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One nit in the Abstract:  "parent-side entities has to" => "parent-side
entities are required to" or "the parent-side entity is required to"