Re: [rtcweb] AVPF vs AVP

"Charles Eckel (eckelcu)" <eckelcu@cisco.com> Wed, 14 September 2011 19:19 UTC

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Date: Wed, 14 Sep 2011 12:21:42 -0700
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Thread-Topic: [rtcweb] AVPF vs AVP
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From: "Charles Eckel (eckelcu)" <eckelcu@cisco.com>
To: Randell Jesup <randell-ietf@jesup.org>, rtcweb@ietf.org
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Subject: Re: [rtcweb] AVPF vs AVP
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Option 2 is what is documented as the best practice for interoperability
purposes within the IMTC as well.

Cheers,
Charles

> -----Original Message-----
> From: rtcweb-bounces@ietf.org [mailto:rtcweb-bounces@ietf.org] On
Behalf Of Randell Jesup
> Sent: Wednesday, September 14, 2011 10:10 AM
> To: rtcweb@ietf.org
> Subject: Re: [rtcweb] AVPF vs AVP
> 
> On 9/14/2011 8:08 AM, Magnus Westerlund wrote:
> > This leaves us with any signaling incompatibilities when talking to
a
> > legacy device. If one don't want to use cap-neg I see two directions
to go:
> >
> > 1) RTCWEB end-point will always signal AVPF or SAVPF. I signalling
> > gateway to legacy will change that by removing the F to AVP or SAVP.
> >
> > 2) RTCWEB end-point will always use AVPF but signal it as AVP. It
will
> > detect the AVPF capabilities of the other end-point based on the
> > signaling of the feedback events intended to be used.
> >
> > I think 1) is cleaner for the future. 2) might be more pragmatic.
> 
> I think this is something we should consider; I'll note that WorldGate
> has been using option 2 for the last 7 or so years with no problems.
> 
> --
> Randell Jesup
> randell-ietf@jesup.org
> 
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