Re: [xrblock] draft-zheng-xrblock-effective-loss-index-00.txt

"Zhenghui (Marvin)" <> Mon, 06 November 2017 11:19 UTC

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From: "Zhenghui (Marvin)" <>
To: Dan Romascanu <>, xrblock <>
Thread-Topic: [xrblock] draft-zheng-xrblock-effective-loss-index-00.txt
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Subject: Re: [xrblock] draft-zheng-xrblock-effective-loss-index-00.txt
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Thanks, Dan.

A little bit explanation about the goal of this draft.

This draft proposes a new metric to measure the effectiveness of stream repair means, and an XR  block to report the metric.

Unlike existing post-repair loss metrics (e.g. RLE [RFC5725], loss counts [RFC7509]), the new metric intends to be simple. The name of the new metric is Effective Loss Index (ELI). It is an index, so ideally the values reported by the XR block can be compared directly. It helps find out, for example, the bottom 5% RTP receivers who suffer most from post-repair loss. With the narrowed focus, more elaborate actions can be carried out for the targeted RTP receivers. For instance, RLE report can be turned on for those RTP receivers to analyses the concrete loss patterns.

Best Regards,
Zhenghui (Marvin)

From: xrblock [] On Behalf Of Dan Romascanu
Sent: Friday, November 03, 2017 9:28 PM
To: xrblock <>
Subject: [xrblock] draft-zheng-xrblock-effective-loss-index-00.txt

You may have seen this submission. As there was no answer to the chairs query about a meeting at IETF 100, xrblock will not meet in Singapore. We try to arrange for a discussion slot in the AVT meeting. Until then I suggest to all xrblock participants to read and comment on this draft, and express their interest and opinions on this work.
Thanks and Regards,


-----Original Message-----

From: internet-drafts at<> [mailto:internet-drafts at<>]

Sent: Monday, October 30, 2017 5:26 PM

To: Rong Gu <gurong_cmcc at<>>; Qin Wu <bill.wu at<>>; Zhenghui (Marvin) <marvin.zhenghui at<>>; Roni Even <roni.even at<>>

Subject: New Version Notification for draft-zheng-xrblock-effective-loss-index-00.txt

A new version of I-D, draft-zheng-xrblock-effective-loss-index-00.txt

has been successfully submitted by Hui Zheng and posted to the IETF repository.

Name:          draft-zheng-xrblock-effective-loss-index

Revision:      00

Title:         RTP Control Protocol (RTCP) Extended Report (XR) Block for Effective Loss Index Reporting

Document date: 2017-10-30

Group:         Individual Submission

Pages:         11






   This document defines a new metric for RTP applications to measure

   the effectiveness of stream repair means, and an RTP Control Protocol

   (RTCP) Extended Report (XR) Block to report the metric.