Re: [DNSOP] I-D Action: draft-wessels-dns-zone-digest-06.txt

"Wessels, Duane" <dwessels@verisign.com> Mon, 25 March 2019 21:15 UTC

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From: "Wessels, Duane" <dwessels@verisign.com>
To: Olli Vanhoja <olli@zeit.co>
CC: Matthew Pounsett <matt@conundrum.com>, "dnsop@ietf.org" <dnsop@ietf.org>
Thread-Topic: Re: [EXTERNAL] [DNSOP] I-D Action: draft-wessels-dns-zone-digest-06.txt
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Date: Mon, 25 Mar 2019 21:15:01 +0000
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Subject: Re: [DNSOP] I-D Action: draft-wessels-dns-zone-digest-06.txt
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> On Mar 25, 2019, at 3:47 PM, Olli Vanhoja <olli@zeit.co>; wrote:
> 
>> Section 3.2. discussion:  Unless there's a potential benefit to non-apex ZONEMD records that I'm not seeing, I think it makes sense to forbid them.  Was there a particular thing that could be enabled by that, which prompted the suggestion?
> 
> I agree with this. I believe it would create unnecessary complexity.
> For example, which records would such a digest cover? Would the apex
> record cover also the records covered by this subdigest?

Matt / Olli,

I'm not aware of anything that could be enabled by non-apex ZONEMD records. My preference would be to forbid non-apex ZONEMD records.

I guess my concern was just that it means implementors need to check for this and treat the RR type somewhat specially, as they do for SOA and maybe a couple other RR types.

DW