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

Mark Delany <m9p@india.emu.st> Thu, 29 July 2021 00:33 UTC

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Subject: Re: [DNSOP] I-D Action: draft-ietf-dnsop-glue-is-not-optional-02.txt
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On 29Jul21, Geoff Huston allegedly wrote:

> For me it appears to depend on the actions of the resolver as to whether this would be faster
> or not. If all resolvers blindly re-query using TCP for all UDP responses where TC=1 is seen in

I'm not sure I follow this bit. Are you merely implying that the resolver should first
consider a larger edns0 bufsize before resorting to TCP?

Or are you suggesting that responses with TC=1 should include as much of the answers as
will fit and then the resolver can decide whether enough is enough?

That is, what do they look at to avoid a "blind requery"?


Mark.