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Re: [AVT] Offer/answer questions on RFC 4585

Magnus Westerlund <magnus.westerlund@ericsson.com> Mon, 08 October 2007 08:38 UTC

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Date: Mon, 08 Oct 2007 10:37:52 +0200
From: Magnus Westerlund <magnus.westerlund@ericsson.com>
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To: "Even, Roni" <roni.even@polycom.co.il>
Subject: Re: [AVT] Offer/answer questions on RFC 4585
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Even, Roni skrev:
> Magnus,
> Do you see a problem in unicast?

Yes, the main problem is how one configures the bandwidth combined with
the need for "trr-int". If one reads Section 5 on compatibilities
between AVP and AVPF there is stressed the need to set "trr-int" to 5
seconds to avoid AVPF users to timeout AVP users. And if "trr-int" is
set to high AVP can timeout AVPF users. Thus removing rtcp-fb completely
may not be the right move, but only leaving trr-int=5 should work as
intended.

Cheers

Magnus Westerlund

IETF Transport Area Director & TSVWG Chair
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