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RTP Control Protocol (RTCP) Extended Report (XR) for Post-Repair Loss Count Metrics (RFC7509) Disclosure Number: IPCOM000241584D
Original Publication Date: 2015-May-01
Included in the Prior Art Database: 2015-May-14
Document File: 22 page(s) / 23K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Huang: AUTHOR [+2]


RTCP Sender Reports (SRs) / Receiver Reports (RRs) [RFC3550] contain some rough statistics about the data received from the particular source indicated in that block. One of them is the cumulative number of packets lost, which is called the pre-repair loss metric in this document. This metric conveys information regarding the total number of RTP data packets that have been lost since the beginning of the RTP session.

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Internet Engineering Task Force (IETF)                          R. Huang Request for Comments: 7509                                        Huawei Category: Standards Track                                       V. Singh ISSN: 2070-1721                                         Aalto University                                                                 May 2015

             RTP Control Protocol (RTCP) Extended Report (XR)                    for Post-Repair Loss Count Metrics


   This document defines an RTP Control Protocol (RTCP) Extended Report    (XR) block that allows reporting of a post-repair loss count metric    for a range of RTP applications.  In addition, another metric,    repaired loss count, is also introduced in this report block for    calculating the pre-repair loss count when needed, so that the RTP    sender or a third-party entity is able to evaluate the effectiveness    of the repair methods used by the system.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal    Provisions Relating to IETF Documents    ( in effect on the date of    publication of this document.  Please review these documents    carefully, as they describe your rights and restrictions with respect    to this document.  Code Components extracted from this document must    include Simplified BSD License text as described in Section 4.e of    the Trust Legal Provisions and are provided without warranty as    described in the Simplified BSD License.

Singh & Huang                Standards Track                    [Page 1]
 RFC 7509             Post-Repair Non-RLE Loss Count             May 2015

 Table of Contents

   1. Introduction ....................................................2

   2. Terminology .....................................................3

   3. Post-Repair Loss Count Metrics Report Block .....................3