Re: [DNSOP] I-D Action: draft-ietf-dnsop-svcb-https-02.txt
Paul Vixie <paul@redbarn.org> Tue, 05 January 2021 22:12 UTC
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To: Ben Schwartz <bemasc=40google.com@dmarc.ietf.org>
Cc: "libor.peltan" <libor.peltan@nic.cz>, dnsop <dnsop@ietf.org>
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From: Paul Vixie <paul@redbarn.org>
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Date: Tue, 05 Jan 2021 14:12:09 -0800
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Archived-At: <https://mailarchive.ietf.org/arch/msg/dnsop/cvOJzS_GGhzzCSUCXEFYb0WOD9c>
Subject: Re: [DNSOP] I-D Action: draft-ietf-dnsop-svcb-https-02.txt
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a small matter. Ben Schwartz wrote on 2021-01-05 09:42: > > > On Wed, Dec 30, 2020 at 4:39 AM libor.peltan <libor.peltan@nic.cz > <mailto:libor.peltan@nic.cz>> wrote: > > Hi Ben, all, > i'd like to ask for some clarification of expected Authoritative > server behaviour around Alias SVCB records: > > 1) when there are multiple Alias SVCB records for an owner name, > > As Section 2.4.2 says "SVCB RRSets SHOULD only have a single resource > record in AliasMode". So this "should" not happen. can you specify that if it does happen, the client behaviour should be the same as if there are no matching records? otherwise clients will have degrees of freedom, which i think would not end well. > > should the Authoritative server put targeted records into > Additionals for all of them, or just pick one? > > I think the answer is "whatever you would do with CNAME". Just like > CNAME, there really should only be one record in the RRSet. If you put > more than one AliasMode record in the RRSet ... you're doing it wrong > (but the resolver will still do something reasonable). to be clear, for CNAME the referenced records are added to the answer section, not as in this case the additional section.
- [DNSOP] I-D Action: draft-ietf-dnsop-svcb-https-0… internet-drafts
- Re: [DNSOP] I-D Action: draft-ietf-dnsop-svcb-htt… Ben Schwartz
- Re: [DNSOP] I-D Action: draft-ietf-dnsop-svcb-htt… libor.peltan
- Re: [DNSOP] I-D Action: draft-ietf-dnsop-svcb-htt… Eric Orth
- Re: [DNSOP] I-D Action: draft-ietf-dnsop-svcb-htt… Ben Schwartz
- Re: [DNSOP] I-D Action: draft-ietf-dnsop-svcb-htt… Paul Vixie
- Re: [DNSOP] I-D Action: draft-ietf-dnsop-svcb-htt… Ben Schwartz
- Re: [DNSOP] I-D Action: draft-ietf-dnsop-svcb-htt… Eric Orth
- Re: [DNSOP] I-D Action: draft-ietf-dnsop-svcb-htt… Brian Dickson