Re: [xrblock] FW: I-D Action: draft-ietf-xrblock-rtcp-xr-summary-stat-01.txt - review

"Roni Even" <> Tue, 16 October 2012 16:39 UTC

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From: Roni Even <>
To: "'Huangyihong (Rachel)'" <>,
Date: Tue, 16 Oct 2012 18:37:34 +0200
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Subject: Re: [xrblock] FW: I-D Action: draft-ietf-xrblock-rtcp-xr-summary-stat-01.txt - review
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I read the draft and have some comments.

1. Is these blocks used for any media type or just video. The text hints at
video but it will be good to discuss it in the introduction.

2. In the introduction the following sentence "These two blocks are intended
   to be used in conjunction with information from the Burst Gap Loss
   metric block or Burst Gap Discard metric block, and on which these
   two block therefore depends." Maybe add reference to the two metric
blocks since they are mentioned as normative.

3. The draft talk about frames and packet. Current codecs like H.264 use the
term access units and IDR, look at section 4.1 of RFC6184 maybe use some of
the terminology from there in the terminology section.

4. in section 3.2.2 the reserved field has the definition of the I field.

Roni even
-----Original Message-----
From: [] On Behalf
Of Huangyihong (Rachel)
Sent: 15 October, 2012 6:04 AM
Subject: [xrblock] FW: I-D Action:

Dear all,

Here is the update of draft-ietf-xrblock-rtcp-xr-summary-stat, which mainly
addressed the issues discussed in the list and raised in last meeting. If
you have any different opinions, please let us know. 

Best Regards!

-----Original Message-----
From: [] On Behalf
Sent: Monday, October 15, 2012 10:43 AM
Subject: [xrblock] I-D Action:

A New Internet-Draft is available from the on-line Internet-Drafts
 This draft is a work item of the Metric Blocks for use with RTCP's Extended
Report Framework Working Group of the IETF.

	Title           : RTP Control Protocol (RTCP) Extended Report (XR)
Block for Summary Statistics Metrics Reporting
	Author(s)       : Glen Zorn
                          Roland Schott
                          Qin Wu
                          Rachel Huang
	Filename        : draft-ietf-xrblock-rtcp-xr-summary-stat-01.txt
	Pages           : 15
	Date            : 2012-10-14

   This document defines three RTP Control Protcol (RTCP) Extended
   Report (XR) Blocks and associated SDP parameters that allows the
   reporting of loss, duplication and discard summary statistics metrics
   for use in a range of RTP applications.

The IETF datatracker status page for this draft is:

There's also a htmlized version available at:

A diff from the previous version is available at:

Internet-Drafts are also available by anonymous FTP at:

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