John Dickinson <j...@sinodun.com> wrote: > > We have just submitted a -02 update to the 5966bis draft.
I have read through this draft. It looks in good shape to me. A general comment: can you please grep for lower-case RFC 2119 keywords and either upper-case them or replace them with different phrasing, so there is no doubt about whether something is a misspelled requirement or really a suggestion. (e.g. "ought" instead of "should", "can" instead of "may".) Section 6.2.1.1 especially. Is there anything to say about pMTUd on UDP vs TCP? Section 6.2.2 ought to allow for concurrent zone transfers, since that is necessary for primary/secondary setups with many busy zones. Section 6.2.3 "a few seconds" still seems generous, though I suppose it's hard for a server to tune the timeout to something based on the client's RTT... Section 6.2.4 is it worth saying that a client can retry over UDP if it has not previously received a TC reply to this query? Section 11: Wider use of TCP doesn't make servers more vulnerable to DoS attacks, but rather it increases the likelyhood of accidental DoS due to server overload. I think discussing the wider use of TCP just makes it more blatantly obvious how vulnerable existing servers are to TCP resource exhaustion. Fixing TCP scalability will make them more resistant to DoS attacks. Appendix A: Is this supposed to be just a summary of points made earlier? There are some points here about TFO and MPTCP which aren't in the main body. Some editorial nits: RRL is mentioned twice mentioned twice in the first para. I suggest changing this paragraph in the intro This document therefore updates the core DNS protocol specifications such that support for TCP is henceforth a REQUIRED part of a full DNS protocol implementation. to The previous version of this document [RFC5966] updated the core DNS protocol specifications such that support for TCP became a REQUIRED part of a full DNS protocol implementation. IF TCP -> If TCP fastopen -> Fast Open TFO.From -> TFO. From Tony. -- f.anthony.n.finch <d...@dotat.at> http://dotat.at/ Forties, Cromarty, Forth: South becoming cyclonic 4 or 5, then mainly north 5 to 7 later. Slight or moderate, becoming moderate or rough later. Occasional rain, fog patches. Moderate, occasionally very poor. _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
