On Tue, Sep 05, 2017 at 03:25:39PM -0400,
 tjw ietf <tjw.i...@gmail.com> wrote 
 a message of 77 lines which said:

> This starts a formal Call for Adoption for draft-tale-dnsop-serve-stale
> 
> The draft is available here:
> https://datatracker.ietf.org/doc/draft-tale-dnsop-serve-stale/

I'm not enthousiastic. We should focus on making the DNS
infrastructure more reliable, not on adding something to a pile of
already fragile protocols.

There is also an opportunity that it masks failures and prevents
people from properly assigning blame: "example.com works if I use
Something Public DNS but not if I use my ISP's resolver, therefore my
ISP is broken".

Also, the current draft does not make crystal-clear that stale data
MUST NOT be served unless no authoritative name server replies.

If it is adopted, I think that requesting some way to convey the fact
it is stale to the client (Davey Song's message) is necessary.

Regarding the draft, I'm surprised by the paragraph starting with
"Paul Vixie has suggested", paragraph which seems to completely ignore
RFC 8020.

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