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References: <014401ce3e5a$f28208b0$d7861a10$@gmail.com>
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Date: Tue, 11 Jun 2013 07:30:15 -0600
Message-ID: <CALw1_Q36fLC4O=EF9JbREvriqSc4GGYk-chv79P76C3Y3NtS7g@mail.gmail.com>
From: Kevin Gross <kevin.gross@avanw.com>
To: Colin Perkins <csp@csperkins.org>
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Cc: mmusic <mmusic@ietf.org>, "avt@ietf.org" <avt@ietf.org>,
 "draft-ietf-avtcore-clksrc@tools.ietf.org"
 <draft-ietf-avtcore-clksrc@tools.ietf.org>
Subject: Re: [AVTCORE] WGLC on draft-ietf-avtcore-clksrc-03
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I've read section 12.2 of RFC 5576 and it is unclear to me whether a
properly-registered attribute also requires a separate registration to be
used as a source-level attribute. I gather there's some uncertainty on
Colin's part. Can anyone help clarify these requirements for us?

Kevin Gross
+1-303-447-0517
Media Network Consultant
AVA Networks - www.AVAnw.com <http://www.avanw.com/>, www.X192.org


On Fri, May 3, 2013 at 10:26 AM, Colin Perkins <csp@csperkins.org> wrote:

> On 21 Apr 2013, at 07:39, Roni Even wrote:
> > I would like to start a WGLC on
> http://tools.ietf.org/html/draft-ietf-avtcore-clksrc-03  , RTP Clock
> Source Signalling.
> >
> > The WGLC will end on May 12th , 2013
> >
> > Please review the draft and send comments to the list.
>
> This generally looks good, and I had only one comment: if I'm reading RFC
> 5576 correctly, this draft needs to include IANA registrations for
> "att-field (source level)" for the SDP attributes, to allow them to be used
> in the a=ssrc: lines. Making this change will probably also requires
> changes to the ABNF, to cleanly separate the syntax for "a=..." and
> "a=ssrc: ..." forms so they can be separately referenced.
>
> --
> Colin Perkins
> http://csperkins.org/
>
>
>
>

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<div dir=3D"ltr">I&#39;ve read section 12.2 of RFC 5576 and it is unclear t=
o me whether a properly-registered attribute also requires a separate regis=
tration to be used as a source-level attribute. I gather there&#39;s some u=
ncertainty on Colin&#39;s part. Can anyone help clarify these requirements =
for us?</div>
<div class=3D"gmail_extra"><br clear=3D"all"><div>Kevin Gross<br><div>+1-30=
3-447-0517</div><div>Media Network Consultant<br><div>AVA Networks -=A0<a h=
ref=3D"http://www.avanw.com/" target=3D"_blank">www.AVAnw.com</a>,=A0<a hre=
f=3D"http://www.X192.org" target=3D"_blank">www.X192.org</a></div>
</div></div>
<br><br><div class=3D"gmail_quote">On Fri, May 3, 2013 at 10:26 AM, Colin P=
erkins <span dir=3D"ltr">&lt;<a href=3D"mailto:csp@csperkins.org" target=3D=
"_blank">csp@csperkins.org</a>&gt;</span> wrote:<br><blockquote class=3D"gm=
ail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-le=
ft:1ex">
<div class=3D"im">On 21 Apr 2013, at 07:39, Roni Even wrote:<br>
&gt; I would like to start a WGLC on <a href=3D"http://tools.ietf.org/html/=
draft-ietf-avtcore-clksrc-03" target=3D"_blank">http://tools.ietf.org/html/=
draft-ietf-avtcore-clksrc-03</a> =A0, RTP Clock Source Signalling.<br>
&gt;<br>
&gt; The WGLC will end on May 12th , 2013<br>
&gt;<br>
&gt; Please review the draft and send comments to the list.<br>
<br>
</div>This generally looks good, and I had only one comment: if I&#39;m rea=
ding RFC 5576 correctly, this draft needs to include IANA registrations for=
 &quot;att-field (source level)&quot; for the SDP attributes, to allow them=
 to be used in the a=3Dssrc: lines. Making this change will probably also r=
equires changes to the ABNF, to cleanly separate the syntax for &quot;a=3D.=
..&quot; and &quot;a=3Dssrc: ...&quot; forms so they can be separately refe=
renced.<br>

<span class=3D"HOEnZb"><font color=3D"#888888"><br>
--<br>
Colin Perkins<br>
<a href=3D"http://csperkins.org/" target=3D"_blank">http://csperkins.org/</=
a><br>
<br>
<br>
<br>
</font></span></blockquote></div><br></div>

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