Re: [DNSOP] unrelated name server name recommendation

[Paul Vixie <[e-mail]>]

Ben Schwartz wrote on 2024-03-04 07:20:
> To rephrase, it sounds like you are proposing a rule that zones should 
> be configured to use at most one glueless delegation step.

i think it's the inverse. according to fujiwara-san's comments each zone 
must have at least one in-zone name server name:

<<the domain names that host the name server names MUST be resolvable by 
delegations using one or more in-domain name server names.>>

this means a zone will always be reachable through at least one in-zone 
data path (name server name and associated address records.) the result 
would be that a full resolver would never have to pause its current 
lookup while searching for address records matching an out-of-zone name 
server name.

i think it's a solid recommendation, but can only be a SHOULD not a 
MUST, both because of the installed base / long tail, and the 
impossibility of enforcing it, and the market needs of parking lots.

-- 
P Vixie