> On 29 Nov 2017, at 11:17 pm, Andrew Sullivan <a...@anvilwalrusden.com> wrote: > > On Wed, Nov 29, 2017 at 01:14:13PM +1100, Mark Andrews wrote: >> When the CNAME refers to a name that is out of zone and the target zone is >> below >> a zone that the server serves you will have CNAME (DNAME) + referral. >> >> 4.3.2 loops. > > This part I got. > >> pass 1 -> 3a (adds CNAME, AA is set as it matches the question >> section, QNAME is updated). > > This is the CNAME response, yes, ok. > >> pass 2 -> 3b (we have a partial match with a bottom of zone cut which >> adds the referral). >> > > Right, and the authoritative server can't proceed, but the referral is > necessary. Good, this is helpful, thanks. This also means, of > course, that in such a response the answer section isn't empty. Is > this why you call it a "partial referral”?
I said “partial answer + referral”, and yes. > Best regards, > > A > >>> On 29 Nov 2017, at 1:03 pm, Andrew Sullivan <a...@anvilwalrusden.com> wrote: >>> >>> Hi Mark, >>> >>> On Wed, Nov 29, 2017 at 12:57:26PM +1100, Mark Andrews wrote: >>>> You can answer only responses, you can have referral only responses, >>>> you can partial answer + referral responses. >>> >>> Where in the algorithm in section 4.3.2 of 1034 (or other, derived >>> cases like DNAME) is this "partial answer + referral responses" >>> described? If this is well-defined somewhere, I want to refer to it. >>> If it is not, I wish to describe it clearly, because it seems pretty >>> obvious given the amount of discussion we've had on this topic that >>> the notion of referral is nowhere near as clear as people seem to >>> think it is. I'm not sure I understand your cryptic remark above, but >>> I am certain I can't make it more comprehensible to others without >>> you telling me that I'm wrong and need to do it over. So I'm >>> appealing to you to try to make your view as clear as possible. >>> >>> Best regards, >>> >>> A >>> >> > > -- > Andrew Sullivan > a...@anvilwalrusden.com > > _______________________________________________ > DNSOP mailing list > DNSOP@ietf.org > https://www.ietf.org/mailman/listinfo/dnsop -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
