Re: [MMUSIC] draft-ietf-mmusic-data-channel-sdpneg-01: dcsa attribute definition

"Roni Even" <ron.even.tlv@gmail.com> Mon, 01 June 2015 16:24 UTC

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From: "Roni Even" <ron.even.tlv@gmail.com>
To: "'Paul Kyzivat'" <pkyzivat@alum.mit.edu>, <mmusic@ietf.org>
References: <949EF20990823C4C85C18D59AA11AD8B4A11DCE8@FR712WXCHMBA11.zeu.alcatel-lucent.com> <55155FF0.4090800@alum.mit.edu>
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Date: Mon, 1 Jun 2015 19:24:28 +0300
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Subject: Re: [MMUSIC] draft-ietf-mmusic-data-channel-sdpneg-01: dcsa attribute definition
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Hi,
Agree with Paul about not all attributes are suitable, the extreme is that
dcsa is an attribute
Also note that the IANA section in the 02 version does not talk about the
new SDP attibutes dcsa and dcmap

Roni Even

> -----Original Message-----
> From: mmusic [mailto:mmusic-bounces@ietf.org] On Behalf Of Paul Kyzivat
> Sent: 27 March, 2015 4:50 PM
> To: mmusic@ietf.org
> Subject: Re: [MMUSIC] draft-ietf-mmusic-data-channel-sdpneg-01: dcsa
> attribute definition
> 
> This WFM.
> It wouldn't hurt to refer to the IANA registry as a place where attribute
> definitions might be found. Also maybe a note that not all attributes are
> suitable for use this way.
> 
> 	Thanks,
> 	Paul
> 
> On 3/26/15 7:57 PM, DRAGE, Keith (Keith) wrote:
> > For the dcsa attribute the ABNF text currently states:
> >
> > "
> >     Syntax:
> >
> >     dcsa-value      = stream-id SP attribute
> >     attribute       = <from-RFC4566>
> > "
> >
> > We had a concern that this might imply that only the attributes defined
in
> RFC 4566 are appropriate.
> >
> > Our proposal in the meeting was not supported, because the above is in
fact
> correct, the ABNF for attributes is wholely defined in RFC 4566.
> >
> > Perhaps the solution is to add some additional text after the above ABNF
> (leaving the ABNF unchanged) as follows:
> >
> > "Note that the above reference to RFC 4566 defines were he attribute
> definition can be found; it does not provide any limitation on support of
> attributes defined in other documents in accordance with this attribute
> definition."
> >
> > Is this proposal acceptable.
> >
> > Regards
> >
> > Keith
> >
> > _______________________________________________
> > mmusic mailing list
> > mmusic@ietf.org
> > https://www.ietf.org/mailman/listinfo/mmusic
> >
> 
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