Re: [rtcweb] RTP Usage: Is RTP Retransmission REQUIRED or RECOMMENDED

John Leslie <john@jlc.net> Fri, 29 June 2012 14:25 UTC

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Date: Fri, 29 Jun 2012 10:25:26 -0400
From: John Leslie <john@jlc.net>
To: Magnus Westerlund <magnus.westerlund@ericsson.com>
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] RTP Usage: Is RTP Retransmission REQUIRED or RECOMMENDED
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Magnus Westerlund <magnus.westerlund@ericsson.com> wrote:
> 
> I am not disagreeing unless the RTT is really low.

   Actually, there is a balancing act between RTT and jitter...

> What I am asking the WG is if RTP retransmission is a RECOMMENDED or
> REQUIRED feature in the toolbox that an WebRTC end-point supports. This
> says nothing on when you select to use it and on which media. If we want
> to include such recommendations we can do it. In fact the RTP usage
> draft has a bit on text discussing the issue with RTT.

   I'd like to support Magnus here: I believe retransmission SHOULD be a
tool available to the recipient to request. There will be cases where
this is the most appropriate tool.

--
John Leslie <john@jlc.net>