Re: [bfcpbis] I-D Action: draft-ietf-bfcpbis-rfc4583bis-03.txt

"Charles Eckel (eckelcu)" <eckelcu@cisco.com> Thu, 18 October 2012 20:33 UTC

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From: "Charles Eckel (eckelcu)" <eckelcu@cisco.com>
To: "Tom Kristensen (tomkrist)" <tomkrist@cisco.com>, Jonathan Lennox <jonathan@vidyo.com>
Thread-Topic: [bfcpbis] I-D Action: draft-ietf-bfcpbis-rfc4583bis-03.txt
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Date: Thu, 18 Oct 2012 20:33:25 +0000
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Cc: "bfcpbis@ietf.org" <bfcpbis@ietf.org>, "Gonzalo Camarillo (Gonzalo.Camarillo@ericsson.com)" <Gonzalo.Camarillo@ericsson.com>, "Robert Sparks (rjsparks@nostrum.com)" <rjsparks@nostrum.com>
Subject: Re: [bfcpbis] I-D Action: draft-ietf-bfcpbis-rfc4583bis-03.txt
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I see no harm in adding such a note, and it may help. As for referencing the IMTC best practice document, it is available through a liaison statement at:
https://datatracker.ietf.org/documents/LIAISON/liaison-2012-05-31-imtc-the-ietf-imtc-work-on-sip-feature-parity-with-h323-attachment-3.pdf

However, I expect this IMTC document to be updated and made available externally once the BFCPBIS work completes, so I am not sure referencing it this way is appropriate.

Thanks,
Charles

> -----Original Message-----
> From: Tom Kristensen (tomkrist)
> Sent: Wednesday, October 17, 2012 1:44 AM
> To: Jonathan Lennox
> Cc: Charles Eckel (eckelcu); bfcpbis@ietf.org
> Subject: Re: [bfcpbis] I-D Action: draft-ietf-bfcpbis-rfc4583bis-03.txt
> 
> I'm not sure we should say much about this in rfc4583bis. This is
> similar to existing "best effort encryption" schemes, where different
> vendors historically have had their own interpretation of a best current
> practice.
> 
> Anyway, it is not a big deal adding an informational note, if people
> thinks that's a good idea, explaining that one may very well meet an
> mstrm referring to a still undefined label.
> 
> (Do we then reference the IMTC document as an informational reference or
> simply state the fact that this behaviour exists in the wild?!)
> 
> -- Tom
> 
> On 10/16/2012 12:15 AM, Jonathan Lennox wrote:
> > I greatly apologize; I should have sent this earlier.
> >
> > There are some BFCP usages in the IMTC Role-Based Video Streams
> work<https://datatracker.ietf.org/liaison/1170/>  which have some unusual
> features -- in particular, it recommends sending an offer with a BFCP stream
> referencing an mstrm that does not yet exist.  (The intention is that if the
> SDP answer indicates that the peer understands both BFCP and the SDP
> content attribute, a re-INVITE can be sent adding an additional BFCP-
> controlled video stream with "content:slides".)
> >
> > This document should probably call out that usage, at least to indicate that
> it's valid for an mstrm to reference an undefined label.
> >
> >
> > On Oct 15, 2012, at 12:29 PM, Charles Eckel (eckelcu) wrote:
> >
> >
> >> (As co-chair)
> >>
> >> For everyone, if there are any outstanding issues of questions you have
> related to this draft, please share them now.
> >> We plan to proceed with the proto writeup soon.
> >>
> >> Cheers,
> >> Charles
> >>
> >>
> >>> -----Original Message-----
> >>> From: bfcpbis-bounces@ietf.org [mailto:bfcpbis-bounces@ietf.org] On
> >>> Behalf Of Tom Kristensen (tomkrist)
> >>> Sent: Friday, October 12, 2012 5:02 AM
> >>> To: bfcpbis@ietf.org
> >>> Subject: Re: [bfcpbis] I-D Action: draft-ietf-bfcpbis-rfc4583bis-03.txt
> >>>
> >>> On 10/12/2012 01:54 PM, internet-drafts@ietf.org wrote:
> >>>
> >>>> A New Internet-Draft is available from the on-line Internet-Drafts
> >>>>
> >>> directories.
> >>>
> >>>>   This draft is a work item of the Binary Floor Control Protocol Bis
> Working
> >>>>
> >>> Group of the IETF.
> >>>
> >>>> 	Title           : Session Description Protocol (SDP) Format for Binary
> >>>>
> >>> Floor Control Protocol (BFCP) Streams
> >>>
> >>>> 	Author(s)       : Gonzalo Camarillo
> >>>>                            Tom Kristensen
> >>>> 	Filename        : draft-ietf-bfcpbis-rfc4583bis-03.txt
> >>>> 	Pages           : 15
> >>>> 	Date            : 2012-10-12
> >>>>
> >>>> Abstract:
> >>>>     This document specifies how to describe Binary Floor Control
> Protocol
> >>>>     (BFCP) streams in Session Description Protocol (SDP) descriptions.
> >>>>     User agents using the offer/answer model to establish BFCP streams
> >>>>     use this format in their offers and answers.
> >>>>
> >>>>     This document obsoletes RFC 4583.  Changes from RFC 4583 are
> >>>>     summarized in section 12.
> >>>>
> >>>>
> >>> No comments or input received after WGLC. Anyway, this is a short,
> >>> simple draft where the changes follows more or less automatically from
> >>> the extensions in rfc4582bis.
> >>>
> >>> After checking out with the original author of RFC 4583, the ipr
> >>> parameter is changed s/pre5378Trust200902/trust200902/.
> >>>
> >>> Cf.<URL:
> >>> http://tools.ietf.org//rfcdiff?url1=http://tools.ietf.org/id/draft-ietf-
> bfcpbis-
> >>> rfc4583bis-02.txt&url2=http://tools.ietf.org/id/draft-ietf-bfcpbis-
> rfc4583bis-
> >>> 03.txt
> >>>
> >>>>
> >>> -- Tom
> >>>
> >>> _______________________________________________
> >>> bfcpbis mailing list
> >>> bfcpbis@ietf.org
> >>> https://www.ietf.org/mailman/listinfo/bfcpbis
> >>>
> >> _______________________________________________
> >> bfcpbis mailing list
> >> bfcpbis@ietf.org
> >> https://www.ietf.org/mailman/listinfo/bfcpbis
> >>
> >>
> > --
> > Jonathan Lennox
> > jonathan@vidyo.com
> >
> >
> >