[dns-operations] EDNS buffer size on TCP connections?
dwessels at verisign.com
Wed Jun 22 15:48:34 UTC 2016
> On Jun 22, 2016, at 8:22 AM, Mukund Sivaraman <muks at isc.org> wrote:
> On Wed, Jun 22, 2016 at 10:53:30AM -0400, David C Lawrence wrote:
>> A responder can still set it to the maximum payload size it would
>> support for future UDP transactions.
> I'm not sure the RFC defines it for this purpose. It's supposed to be
> valid for that particular query only, and is a request field.
RFC 6891 section 6.2.4 describes its use by responders.
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