On 11/14/19 12:05 AM, Viktor Dukhovni wrote: > It'd be a shame (though admittedly not frequent) to have a resolver > retry over TCP just to get the same answer with additional information > it does not need and perhaps does not even understand.
EDE codes themselves take very little space, so truncating just the textual messages might be a good middle-ground.... but I certainly haven't tried thinking of all implications on EDE truncation yet. Communicating these through bit(s) in EDE or EDNS flags might be nice, and clients might even use them to set their preference. Still, ATM I can't clearly see whether such TC details would be useful in practice. I think we're fortunate that most use cases for EDE are failures... so the answer will probably be tiny. --Vladimir _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
