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Re: [Cbor] Multiple questions with CBOR for DNS

Carsten Bormann <cabo@tzi.org> Thu, 09 November 2023 14:18 UTC

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From: Carsten Bormann <cabo@tzi.org>
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Date: Thu, 09 Nov 2023 15:18:03 +0100
Cc: Martine Sophie Lenders <martine.lenders@tu-dresden.de>, "cbor@ietf.org" <cbor@ietf.org>, "draft-lenders-dns-cbor.authors@ietf.org" <draft-lenders-dns-cbor.authors@ietf.org>
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To: Esko Dijk <esko.dijk@iotconsultancy.nl>
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Subject: Re: [Cbor] Multiple questions with CBOR for DNS
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Hi Esko,

> question-section = [question+]
>     question = (
>       name: domain-name,
>       ? type-spec,
>     )

The “+” here actually can be efficiently implemented, as long as domain-name and type-spec don’t overlap.

So we can define the question-section to be extensible to multiple questions without additional encoding cost.
Whether people implement this in the DNS servers of course is a different question.

Grüße, Carsten

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