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Re: [DNSOP] [internet-drafts@ietf.org: I-D Action: draft-bortzmeyer-dnsop-nxdomain-cut-00.txt]

Stephane Bortzmeyer <bortzmeyer@nic.fr> Fri, 13 November 2015 19:53 UTC

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Date: Fri, 13 Nov 2015 20:52:05 +0100
From: Stephane Bortzmeyer <bortzmeyer@nic.fr>
To: "Wessels, Duane" <dwessels@verisign.com>
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Subject: Re: [DNSOP] [internet-drafts@ietf.org: I-D Action: draft-bortzmeyer-dnsop-nxdomain-cut-00.txt]
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On Thu, Nov 12, 2015 at 06:13:04PM +0000,
 Wessels, Duane <dwessels@verisign.com> wrote 
 a message of 57 lines which said:

> Perhaps a recursive might be designed to negatively cache an entire
> zone (including TLD) but continue answering positively cached
> answers in the zone until they expire normally.

Clever algorithm but I'm afraid it will make debugging more
difficult. Such a behaviour will be highly non-intuitive for the
user. (One of the motivations for NXDOMAIN cut is to make DNS behave
according to its data model, which is a tree.)

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