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Re: [pntaw] Real-time media over TCP

Harald Alvestrand <harald@alvestrand.no> Mon, 02 September 2013 08:36 UTC

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Date: Mon, 02 Sep 2013 10:35:35 +0200
From: Harald Alvestrand <harald@alvestrand.no>
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Subject: Re: [pntaw] Real-time media over TCP
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On 08/30/2013 12:12 PM, Victor Pascual Avila wrote:
> Hi,
>
> Real-time media over TCP has some inherent challenges -- is this
> something we're planning to discuss here? We did RTP over TCP (+ HTTP
> CONNECT) in the past and ended up using multiple connections along
> with application-layer redundancy. I'm wondering whether we'll be able
> to do the same when moving to WebRTC

If you really want to go there, I suggest you take a good hard look at 
either SCTP or TCP Minion (draft-iyengar-minion-concept-01.txt).

The RTCWeb stack already uses SCTP over DTLS over UDP.

In either case, I don't think performance of RTP over reliable transport 
is a firewall-related issue.

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