On Mon, 19 Apr 2021 07:31:49 -0400
Joe Abley <jab...@hopcount.ca> wrote:
> NEW:
> 
>    The specification of the DNS allows both UDP and TCP to be used 
>    as transport protocols for exchanging unencrypted DNS messages.
>    However, for various reasons, the availability of TCP transport
>    has sometimes been interpreted as being optional.  This document 
>    clarifies the need to provide TCP transport for both clients and
>    servers and strengthens the requirement of DNS implementations
>    to support both.

Hi Joe,

Thanks for your careful read and thoughtful comments.  I would just
point out that there is already a document that specifically requires
this of the implementations, IETF RFC 7766.  This draft was
specifically aimed at operators, which have that document had
sidestepped "this document makes no specific requirements for
operators".  So maybe a simple "implementations" to "operators" change
of your text would work?

John

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