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

John R Levine <johnl@taugh.com> Wed, 28 July 2021 02:47 UTC

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Date: 27 Jul 2021 22:47:21 -0400
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From: "John R Levine" <johnl@taugh.com>
To: "Mark Andrews" <marka@isc.org>
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Subject: Re: [DNSOP] I-D Action: draft-ietf-dnsop-glue-is-not-optional-02.txt
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> 	take the following delegations in the parent zone example.
>
> 	foo.example NS ns.bar.example
> 	ns.foo.example AAAA 2001:0DB8:0000:000b::1
>
> 	bar.example NS ns.foo.example
> 	ns.bar.example AAAA 2001:0DB8:0000:000b::2

Well, OK.  How about this?

 	foo.example NS ns.bar.example
 	ns.foo.example AAAA 2001:0DB8:0000:000b::1

 	bar.example NS ns.abc.example
 	ns.bar.example AAAA 2001:0DB8:0000:000b::2

 	abc.example NS ns.def.example
 	ns.abc.example AAAA 2001:0DB8:0000:000b::3

 	def.example NS ns.foo.example
 	ns.def.example AAAA 2001:0DB8:0000:000b::4

(I would have gone all the way to ns.xyz.example but it's tine for bed here)

We don't try to make NS loops work across zones, so I don't see the point 
of sorta kinda trying to make them work sometimes.

It's kinder to make stuff just fail so people fix it than to make it 
sometiemes work, depending on what version of what software people's 
multicasted queries happen to land on.

R's,
John