> On 27 Jul 2023, at 09:20, Brian Dickson <[email protected]> wrote: > > > > On Wed, Jul 26, 2023 at 4:12 PM George Michaelson <[email protected]> wrote: > if QDCOUNT is defined as [0|1] then we have 15 new bits of freedom in > the header. > > What would be interesting uses of the flow-label? Oh wait.. that's > right, nobody really knows at scale how to use flow-label either. > > I tend to "use it for 15 bits of signalling" because there are a lot > of things I wish were signalled from client to server. > > "I am new code" > "I am at least not ancient code" > "I'm the same as that other guy you saw over <there>" > "I like TCP and want to do a persisting session" > "tell me if you are doing a|b|c|d" > "I like chocolate and want a pony" > > maybe the truth is, we've got 15 bits of zero in the header forever, amen. > > (I deliberately didn't put this in the draft- post from Ray so as not > to pollute an objective discussion of what it is or is not the value > proposition) > > clue-stick hits welcome. Avoid the stomach. > > 15 bits of entropy would maybe be a good use, particularly for short QNAMEs > (and with QNAME minimization, that definitely applies to root and TLD > queries). > That would augment or compensate for fewer bits available for 0x20 entropy. Or root and TLD servers could just deploy DNS COOKIE. There is no reason for them not to deploy DNS COOKIE today other than vendors not implementing it. Time for vendors to pull their fingers out.
DNS COOKIE is standards track. It is a security fix. Deploy it. > > Brian > _______________________________________________ > DNSOP mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/dnsop -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: [email protected] _______________________________________________ DNSOP mailing list [email protected] https://www.ietf.org/mailman/listinfo/dnsop
