Re: [Gen-art] Gen-ART review of draft-ietf-tsvwg-sctp-strrst-12
Michael Tuexen <tuexen@fh-muenster.de> Fri, 02 December 2011 21:25 UTC
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From: Michael Tuexen <tuexen@fh-muenster.de>
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Date: Fri, 02 Dec 2011 22:25:38 +0100
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To: "Vijay K. Gurbani" <vkg@bell-labs.com>
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Cc: gorry@erg.abdn.ac.uk, Wesley Eddy <wes@mti-systems.com>, draft-ietf-tsvwg-sctp-strrst@tools.ietf.org, "James M. Polk" <jmpolk@cisco.com>, General Area Review Team <gen-art@ietf.org>
Subject: Re: [Gen-art] Gen-ART review of draft-ietf-tsvwg-sctp-strrst-12
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On Dec 2, 2011, at 9:36 PM, Vijay K. Gurbani wrote: > On 12/02/2011 02:11 AM, Michael Tuexen wrote: >> What about: >> >> <t>One important thing to remember about SCTP streams is that they >> are uni-directional. The endpoint for which a stream is an outgoing >> stream is called the outgoing side, the endpoint for which the >> stream is an incoming stream is called the incoming side. > > Michael: I would reword the above as "The endpoint that originates > the SCTP connection (resulting the the associated stream) is the > outgoing side and the recipient of that SCTP connection becomes the > incoming side." Hi Vijay, the above is incorrect... It is not important which side establishes the SCTP association. No matter how it was established, a uni-directional stream is outgoing for one side, incoming for the other. After the association has been established, you have n uni-directional streams from A to B, and m uni-directional streams from B to A. For the n streams, A is the outgoing side, B the incoming. For the m streams, B is the outgoing side, A is the incoming side. No matter if A is client, B is server, vice versa, or both were acting as peers. Best regards Michael > > The rest of what you write below is fine. > >> The procedures outlined in this section are designed so that the >> incoming side will always reset their stream sequence number first >> before the outgoing side which means the re-configuration request >> must always originate from the outgoing side. These two issues have >> important ramifications upon how an SCTP endpoint might request that >> its incoming streams be reset. In effect it must ask the peer to >> start an outgoing reset procedure and once that request is >> acknowledged let the peer actually control the reset operation.</t> > > Whether or not to include issue of glare, I will leave up to you. > > Thanks, > > - vijay > -- > Vijay K. Gurbani, Bell Laboratories, Alcatel-Lucent > 1960 Lucent Lane, Rm. 9C-533, Naperville, Illinois 60566 (USA) > Email: vkg@{bell-labs.com,acm.org} / vijay.gurbani@alcatel-lucent.com > Web: http://ect.bell-labs.com/who/vkg/ >
- [Gen-art] Gen-ART review of draft-ietf-tsvwg-sctp… Vijay K. Gurbani
- Re: [Gen-art] Gen-ART review of draft-ietf-tsvwg-… Michael Tuexen
- Re: [Gen-art] Gen-ART review of draft-ietf-tsvwg-… Vijay K. Gurbani
- Re: [Gen-art] Gen-ART review of draft-ietf-tsvwg-… Michael Tuexen
- Re: [Gen-art] Gen-ART review of draft-ietf-tsvwg-… Michael Tuexen
- Re: [Gen-art] Gen-ART review of draft-ietf-tsvwg-… Vijay K. Gurbani
- Re: [Gen-art] Gen-ART review of draft-ietf-tsvwg-… Michael Tuexen
- Re: [Gen-art] Gen-ART review of draft-ietf-tsvwg-… Vijay K. Gurbani