On Fri, Mar 25, 2016 at 10:51 PM, John Levine <jo...@taugh.com> wrote:
> >As I think many here know, I am not of the get-off-my-lawn persuasion > >for DNS innovations. I don't think it's a bad idea in principle. I'm > >just aware that we have this long history, and that history was based > >on a certain kind of conservatism that is arguably appropriate to a > >technology quite as fundamental to the Internet functioning as the DNS > >is. If we're going to abandon that conservatism, I think it needs > >quite a lot more early IETF buy-in than we might get by developing > >this work here in DNSOP. The more signal we can get to suggest that > >DNS actors are ok with the innovation, the lower I think that bar gets. > > I'd be a lot more comfortable if we had some field test data about > what real DNS caches do with the extra AAAA records. In theory > nothing bad should happen, in practice ... > > John The next step is experimentation, we wanted to see if the community thought this was a stupid idea before going forward. There are 3 possible outcomes when a DNS querier gets an aswer like this #1 It accepts everything from authority section #2 It tosses the non queried RRset #3 it Rejects the answer and tries again If the result is #1 nothing needs to be done For #2 that means convincing the software vendors to adopt more relaxed approach On the other hand if #3 is the case for a significant part of the infrastructure we can not do this w/o signaling Olafur
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