Re: [AVT] I-D Action:draft-ietf-avt-rtcp-xr-meas-identity-00.txt

[Colin Perkins <csp at csperkins.org>]

On 27 Oct 2008, at 06:00, Internet-Drafts at ietf.org wrote:
> A New Internet-Draft is available from the on-line Internet-Drafts  
> directories.
> This draft is a work item of the Audio/Video Transport Working  
> Group of the IETF.
>
>
> 	Title           : RTCP XR Report Block for Measurement Identity
> 	Author(s)       : G. Hunt, A. Clark
> 	Filename        : draft-ietf-avt-rtcp-xr-meas-identity-00.txt
> 	Pages           : 13
> 	Date            : 2008-10-27
>
> This document defines an RTCP XR Report Block carrying parameters
> which identify a measurement, to which one or more other RTCP XR
> Report Blocks may refer.
>
> A URL for this Internet-Draft is:
> http://www.ietf.org/internet-drafts/draft-ietf-avt-rtcp-xr-meas- 
> identity-00.txt

What's the use case for the Forwarding Count? How is an "RTP system  
which forwards the block" defined? This should refer to RFC 5117 to  
define exactly the topologies for which this applies.

The "extended first sequence number" will always have its high 16  
bits set to zero, no? Or am I misunderstanding what's intended?

--
Colin Perkins
http://csperkins.org/



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