At Fri, 16 Oct 2015 08:35:30 -0700,
Paul Vixie <p...@redbarn.org> wrote:

> > I have separate issue, which is this text:
> >
> >     The priming query MUST be sent over UDP (section 6.1.3.2 of
> >     [RFC1123]).
> >
> > This seems like a super-strong recommendation that doesn't actually
> > help anything in operation.  Further, it seems to conflict with a
> > general desire to make TCP the equal of UDP in DNS.
>
> i do not share, or approve of, any such "general desire". i think the
> text is correct as written.

Although the existence of the "general desire" might be debatable, I
think Shane has a valid point.  The requirement level of the TCP
support has been already tightened in RFC5966 (from a SHOULD in
RFC1123 to REQUIRED), so it doesn't make much sense to me to use a
MUST in this document referring to the older RFC.  At the very least,
if we want to keep the MUST, there should be a different reason than
the reference to RFC1123.

--
JINMEI, Tatuya

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