Re: [AVTCORE] [Technical Errata Reported] RFC3611 (4597)

Magnus Westerlund <magnus.westerlund@ericsson.com> Mon, 04 April 2016 17:24 UTC

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From: Magnus Westerlund <magnus.westerlund@ericsson.com>
To: <alan@telchemy.com>, <timur.friedman@lip6.fr>, <ben@nostrum.com>, <alissa@cooperw.in>, <keith.drage@alcatel-lucent.com>, <roni.even@mail01.huawei.com>
References: <20160122061024.2C4AA18046C@rfc-editor.org>
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Date: Mon, 4 Apr 2016 14:24:38 -0300
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Cc: avt@ietf.org, timebow@163.com
Subject: Re: [AVTCORE] [Technical Errata Reported] RFC3611 (4597)
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Hi,

I have looked at this errata. It appears to be correct. I checked Liu's 
calculation and get the same value. I think the reason the wrong value 
is in the RFC is due that the authors calculated the 33% loss value and 
used that to calculate the burst density, rather than 4/12s.

As this can be confusing when implementing I propose that we verify this 
Errata.

Please provide any feedback on this proposal no later than the 18th of 
April.

Cheers

Magnus Westerlund


Den 2016-01-22 kl. 03:10, skrev RFC Errata System:
> The following errata report has been submitted for RFC3611,
> "RTP Control Protocol Extended Reports (RTCP XR)".
>
> --------------------------------------
> You may review the report below and at:
> http://www.rfc-editor.org/errata_search.php?rfc=3611&eid=4597
>
> --------------------------------------
> Type: Technical
> Reported by: Liu Yuanlong <timebow@163.com>
>
> Section: 4.7.2
>
> Original Text
> -------------
> burst density 84, which corresponds to 33%
>
> Corrected Text
> --------------
> burst density 85, which corresponds to 33%
>
> Notes
> -----
> error calculation for burst density, burst density=4/12*256=85.33...≈85
>
> Instructions:
> -------------
> This erratum is currently posted as "Reported". If necessary, please
> use "Reply All" to discuss whether it should be verified or
> rejected. When a decision is reached, the verifying party (IESG)
> can log in to change the status and edit the report, if necessary.
>
> --------------------------------------
> RFC3611 (draft-ietf-avt-rtcp-report-extns-06)
> --------------------------------------
> Title               : RTP Control Protocol Extended Reports (RTCP XR)
> Publication Date    : November 2003
> Author(s)           : T. Friedman, Ed., R. Caceres, Ed., A. Clark, Ed.
> Category            : PROPOSED STANDARD
> Source              : Audio/Video Transport
> Area                : Real-time Applications and Infrastructure
> Stream              : IETF
> Verifying Party     : IESG
>
>


-- 

Magnus Westerlund

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