Re: [V3] RIPT BoF approved for IETF 107 - Draft charter below

Ross Finlayson <finlayson@live555.com> Tue, 18 February 2020 20:02 UTC

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From: Ross Finlayson <finlayson@live555.com>
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Date: Wed, 19 Feb 2020 09:02:40 +1300
Cc: "v3@ietf.org" <v3@ietf.org>, "Cullen Jennings (fluffy)" <fluffy@cisco.com>, Jonathan Rosenberg <jdrosen@jdrosen.net>, Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com>
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To: Jonathan Rosenberg <jdrosen@five9.com>
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Subject: Re: [V3] RIPT BoF approved for IETF 107 - Draft charter below
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> On Feb 19, 2020, at 5:12 AM, Jonathan Rosenberg <jdrosen@five9.com> wrote:
> 
> Also to be clear - whilst I agree that RTP on QUIC is interesting - it is not in scope because httpbis is our target, not quic. We want to allow voice signaling and media to run over web infrastructure services, so http is our 'waist of the hourglass' not quic.

So just to clarify here:  Is your goal (for this protocol) that media be transferred only over streams (TCP or (reliable) QUIC), not datagrams?  Consequently, how important is end-to-end latency for audio/video calls that would use this protocol?

And are peer-to-peer audio/video calls (that would not involve a web server at all, except perhaps for initial end-user lookup/discovery) out of scope for this protocol?

If that's the case, then you’re not really ‘replacing’ RTP, but rather defining a new media transport protocol to be used in this one (restricted, but important) environment: Transport using reliable protocols via web server(s).  And if that’s the case, then I’m concerned that your SIP replacement (i.e., replacement of the one thing that’s truly broken, and needs replacing) might end up being too restrictive for more general media transport (datagrams and/or peer-to-peer).


Ross Finlayson
Live Networks, Inc.
http://www.live555.com/