Hi Paul,

On Jul 28, 2021, at 10:13, Paul Wouters <p...@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
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