> Then, how about we stop using "lame delegation" and use terms like > "imperfect delegation" or "incomplete delegation"?
Hm, not sure I like either of those two alternatives. I'll give my reasons. In general, to my ear they sound very "generic". A delegation may be "perfect", meaning that it's fully consistent, and all the name servers in the NS RRset responds appropriately for the zone. Would then any deviation from that status make the delegation "imperfect"? I'll wager that there are deviations from this status which would not cause a single delegation to be characterized as "lame" (according to previous discussion), e.g. you may just introduce inconsistency, but all NSes still respond OK. For the second: what's the difference between an inconsistent delegation and an incomplete delegation? What aspect of it is "incomplete"? As should be evident from the earlier discussion, I think the characterization being discussed isn't about the entire NS RRset, but rather about a specific NS record from the set and how the pointed-to name server responds when queried about names in the delegated zone. I still call that "a (single) delegation", but I see that others may disagree, and want to use "delegation" only when talking about the entire NS RRset. So, while it's longer, "a non-productive (single) delegation" is perhaps an alternative which doesn't rely on the "lame" word and which characterizes the same behaviour. I dislike it because it's so much longer, so may not "catch on", but it is perhaps more precise. That should cover "responses from name servers not serving the zone", be that responding either with a REFUSED error code (typical "correct" error code from a non-recursive / publishing name server not set up to serve the zone), or with an upwards referral (nowadays a response frowned upon as a response when not being set up to serve the queried-for zone), or any other error code for that matter, e.g. SERVFAIL for an expired zone. A failure to respond is IMHO not sufficient to earn this label; such a name server's label should perhaps just be "un-responsive", possibly qualified with "from <here>". Not sure about which label to paste on the load balancers which lack the concept of zone, and only know about A records, and respond to queries for AAAA (or other esoteric and "unknown" records, such as NS and SOA) with an upwards referral... Other than "broken", of course. It can however possibly be contested that it's not "a non-productive (single) delegation", although I hesitate here. Regards, - Håvard _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
