On 12/09/2019 19:10, Viktor Dukhovni wrote:
That's the crux of the matter and, in short, *no*, that's not (or should not be) the motivation. SERVFAIL means, and will continue to mean, I can't help you, better luck next time (or elsewhere). The new EDEs are *diagnostic* detail to aid in troubleshoots, but do not override RCODEs. They are not a more fine-grained RCODE one might "act on". If we want more fine-grained *actionable* codes, there's plenty of room for more values in the 12-bit EDNS RCODE. [ I chatted off-list with Wes, the above appears to match his take, with a bit luck also rough WG consensus... ]
The very first two sentences of the draft are (to my reading) at odds with that:
"There are many reasons that a DNS query may fail, some of them transient, some permanent; some can be resolved by querying another server, some are likely best handled by stopping resolution. Unfortunately, the error signals that a DNS server can return are very limited, and are not very expressive." Ray _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
