Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbeat-01.txt
Sean Turner <turners@ieca.com> Tue, 01 February 2011 14:27 UTC
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Date: Tue, 01 Feb 2011 09:31:02 -0500
From: Sean Turner <turners@ieca.com>
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To: Michael Tüxen <Michael.Tuexen@lurchi.franken.de>
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Cc: tls@ietf.org
Subject: Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbeat-01.txt
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On 2/1/11 4:23 AM, t.petch wrote: > ----- Original Message ----- > From: "Michael Tüxen"<Michael.Tuexen@lurchi.franken.de> > To: "Florian Weimer"<fweimer@bfk.de> > Cc:<tls@ietf.org> > Sent: Thursday, January 27, 2011 2:49 PM > > On Jan 27, 2011, at 2:00 PM, Florian Weimer wrote: > >>> This document describes the Heartbeat Extension for the Transport >>> Layer Security (TLS) and Datagram Transport Layer Security (DTLS) >>> protocol. >> >> I think this paragraph >> >> | There MUST NOT be more than one HeartbeatRequest message in flight >> | at a time. >> >> should be changed to: >> >> | Retransmissions MUST use the same payload as the original >> | HeartbeatRequest message. > The intention of the sentence in the ID is that you can not send > multiple HeartbeatRequest out. This could overload the network since > DTLS uses transport layers which do not necessary provide a congestion > control. That is why you can only have one request in flight. > Please note that it is not in flight anymore if the corresponding > HeartbeatReply has been received or the retransmission timer fires. > > Michael > > My experience of the IESG is that they will insist on a paragraph about > Congestion Control (lack of) and mitigation thereof. At the same time, > I find it very hard to know what words will satisfy them; my most recent > experience was with RFC6012, albeit a more complex scenario. > > Tom Petch I suspect that the transport ADs' interest will be piqued the minute they read the words: mtu ;) The best thing to do is to ask for an early review from tsv-dir@ietf.org. I'm willing to send it over if you'd like? This is my bad, because I haven't yet figured out what magic incantation needs to go in drafts to appease the transport (and probably internet area) ADs. spt >> >> The original requirement seems to be pretty much unimplementable >> because of transport layer characteristics. > Not sure what problem you are thinking about. > An implementation of the ID for OpenSSL is available at > http://sctp.fh-muenster.de/dtls-patches.html > > Best regards > Michael >> >> -- >> Florian Weimer<fweimer@bfk.de> >> BFK edv-consulting GmbH http://www.bfk.de/ >> Kriegsstraße 100 tel: +49-721-96201-1 >> D-76133 Karlsruhe fax: +49-721-96201-99 >> _______________________________________________ >> TLS mailing list >> TLS@ietf.org >> https://www.ietf.org/mailman/listinfo/tls >> > > _______________________________________________ > TLS mailing list > TLS@ietf.org > https://www.ietf.org/mailman/listinfo/tls > > _______________________________________________ > TLS mailing list > TLS@ietf.org > https://www.ietf.org/mailman/listinfo/tls >
- [TLS] I-D Action:draft-ietf-tls-dtls-heartbeat-01… Internet-Drafts
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Simon Josefsson
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Florian Weimer
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Michael Tüxen
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Michael Tüxen
- [TLS] IANA considerations I-D Action:draft-ietf-t… t.petch
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… t.petch
- Re: [TLS] IANA considerations I-D Action:draft-ie… Michael Tüxen
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Sean Turner
- Re: [TLS] IANA considerations I-D Action:draft-ie… t.petch
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Michael Tüxen
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Florian Weimer
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Michael Tüxen
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Florian Weimer
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Michael Tüxen
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Martin Rex
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Florian Weimer
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Michael Tüxen
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Michael Tüxen
- Re: [TLS] I-D Action:draft-ietf-tls-dtls-heartbea… Sean Turner