Re: [AVTCORE] [xrblock] WG last call on Monitoring Architecture forRTP (draft-ietf-avtcore-monarch-11)

[Qin Wu <[e-mail]>]

Hi, Colin:
Sorry for late. Your proposed changes looks good to me and has been incorporated into verion (-12).
Thank you very much.

Regards!
-Qin
----- Original Message ----- 
From: "Colin Perkins" <[e-mail]>
To: "Magnus Westerlund" <[e-mail]>
Cc: <[e-mail]>; <[e-mail]>
Sent: Monday, April 02, 2012 11:09 PM
Subject: Re: [AVTCORE] [xrblock] WG last call on Monitoring Architecture forRTP (draft-ietf-avtcore-monarch-11)


Magnus,

I think this draft is in good shape, but there are two issues that came up at IETF83 that should be addressed:

- In the discussion about QoE metrics, it became clear that there are some classes of metric that can only be interpreted with knowledge of the media codec that is being used (MOS score was the triggering example, but there may be others). It might be worth adding a short section between the current Sections 5.1 and 5.2 on "Correlating RTCP XR with RTP Data", to mention that in some cases this correlation is needed, and note that it's necessary to include both the payload type of the reported media in such reports, and signal details of the payload format and parameters to which that payload type is bound.

- Section 5.1 talks about the need to use single metrics blocks. This is fine as far as it goes, but it would be appropriate to highlight that it is appropriate to not-only define metrics separately, but also to do so in separate drafts where possible, since this makes it easier to evolve the metrics (update each block separately), and also makes it easier to require compliance with particular reports.

Colin



On 2 Apr 2012, at 13:43, Magnus Westerlund wrote:
> WG,
> 
> The date set as end for this WG last call has passed. However, I will
> keep it open until the end of the week to let some more people comment
> on it. I do hope that the XR block people will provide some feedback on it.
> 
> Thanks,
> 
> Magnus
> 
> On 2012-03-05 08:44, Magnus Westerlund wrote:
>> WG,
>> 
>> This initiates the Working group last call on Monitoring Architecture
>> for RTP (draft-ietf-avtcore-monarch-11) to be published as Informational
>> RFC. The WG last call will run for three weeks and end Monday the 26th.
>> 
>> The draft can be retrieved from here:
>> https://datatracker.ietf.org/doc/draft-ietf-avtcore-monarch/
>> 
>> Please provide feedback if you have read it, even if you have no
>> comments or think it is good enough, this is important information in
>> judging the support and readiness for publication.
>> 
>> Thanks
>> 
>> Magnus Westerlund
>> 
>> ----------------------------------------------------------------------
>> Multimedia Technologies, Ericsson Research EAB/TVM
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> 
> 
> -- 
> 
> Magnus Westerlund
> 
> ----------------------------------------------------------------------
> Multimedia Technologies, Ericsson Research EAB/TVM
> ----------------------------------------------------------------------
> Ericsson AB                | Phone  [phone]
> Färögatan 6                | Mobile [phone]
> SE-164 80 Stockholm, Sweden| mailto: [e-mail]
> ----------------------------------------------------------------------
> 
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-- 
Colin Perkins
http://csperkins.org/



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