Re: [DNSOP] I-D Action: draft-ietf-dnsop-glue-is-not-optional-02.txt

Joe Abley <jabley@hopcount.ca> Wed, 28 July 2021 17:35 UTC

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From: Joe Abley <jabley@hopcount.ca>
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Date: Wed, 28 Jul 2021 13:35:31 -0400
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References: <AE200EA2-F856-4921-9C9B-72FF0043BE42@nohats.ca>
Cc: Ralf Weber <dns@fl1ger.de>, dnsop <dnsop@ietf.org>
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To: Paul Wouters <paul@nohats.ca>
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Subject: Re: [DNSOP] I-D Action: draft-ietf-dnsop-glue-is-not-optional-02.txt
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Hi Paul,

On Jul 28, 2021, at 10:13, Paul Wouters <paul@nohats.ca> wrote:

> Do you want dns servers to spend extra CPU power to lookup whether this is a “non-functional” glue case instead of spending less CPU just looking if it has a glue record and adding it?

I'm not sure I understand your argument about what is more work for the authority server.

Checking whether a referral targets nameservers whose owner name is below the zone cut seems straightforward. This is work that authority-only servers already do. It also seems entirely possible to do this work at load time at which point it ought to be clear that the zone cut exists; it's not something that must happen at response time.

I don't see where the "extra CPU power" you are talking about comes from.


Joe