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RTP Control Protocol (RTCP) Extended Report (XR) Block for De-Jitter Buffer Metric Reporting
RFC 7005

Document type: RFC - Proposed Standard (September 2013; No errata)
Document stream: IETF
Last updated: 2013-09-04
Other versions: plain text, pdf, html

IETF State: WG Document
Consensus: Unknown
Document shepherd: Dan Romascanu
Shepherd Write-Up: Last changed 2013-05-17

IESG State: RFC 7005 (Proposed Standard)
IANA Action State: RFC-Ed-Ack
Responsible AD: Gonzalo Camarillo
Send notices to: xrblock-chairs@tools.ietf.org, draft-ietf-xrblock-rtcp-xr-jb@tools.ietf.org

Internet Engineering Task Force (IETF)                          A. Clark
Request for Comments: 7005                                      Telchemy
Category: Standards Track                                       V. Singh
ISSN: 2070-1721                                         Aalto University
                                                                   Q. Wu
                                                                  Huawei
                                                          September 2013

         RTP Control Protocol (RTCP) Extended Report (XR) Block
                 for De-Jitter Buffer Metric Reporting

Abstract

   This document defines an RTP Control Protocol (RTCP) Extended Report
   (XR) block that allows the reporting of de-jitter buffer metrics for
   a range of RTP applications.

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
   http://www.rfc-editor.org/info/rfc7005.

Copyright Notice

   Copyright (c) 2013 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
   (http://trustee.ietf.org/license-info) 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.

Clark, et al.                Standards Track                    [Page 1]
RFC 7005                  RTCP XR Jitter Buffer           September 2013

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1.  De-Jitter Buffer Metrics Block . . . . . . . . . . . . . .  3
     1.2.  RTCP and RTCP Extended Reports . . . . . . . . . . . . . .  3
     1.3.  Performance Metrics Framework  . . . . . . . . . . . . . .  3
     1.4.  Applicability  . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Standards Language . . . . . . . . . . . . . . . . . . . . . .  4
   3.  De-Jitter Buffer Operation . . . . . . . . . . . . . . . . . .  4
     3.1.  Idealized De-Jitter Buffer . . . . . . . . . . . . . . . .  4
     3.2.  Fixed De-Jitter Buffer . . . . . . . . . . . . . . . . . .  5
     3.3.  Adaptive De-Jitter Buffer  . . . . . . . . . . . . . . . .  5
   4.  De-Jitter Buffer Metrics Block . . . . . . . . . . . . . . . .  6
     4.1.  Report Block Structure . . . . . . . . . . . . . . . . . .  6
     4.2.  Definition of Fields in De-Jitter Buffer Metrics Block . .  6
   5.  SDP Signaling  . . . . . . . . . . . . . . . . . . . . . . . .  9
     5.1.  SDP rtcp-xr-attrib Attribute Extension . . . . . . . . . .  9
     5.2.  Offer/Answer Usage . . . . . . . . . . . . . . . . . . . .  9
   6.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  9
     6.1.  New RTCP XR Block Type Value . . . . . . . . . . . . . . .  9
     6.2.  New RTCP XR SDP Parameter  . . . . . . . . . . . . . . . . 10
     6.3.  Contact Information for Registrations  . . . . . . . . . . 10
   7.  Security Considerations  . . . . . . . . . . . . . . . . . . . 10
   8.  Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 10
   9.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 10
   10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 10
     10.1. Normative References . . . . . . . . . . . . . . . . . . . 10
     10.2. Informative References . . . . . . . . . . . . . . . . . . 11
   Appendix A.  Metrics Represented Using the Template from
                RFC 6390  . . . . . . . . . . . . . . . . . . . . . . 12

Clark, et al.                Standards Track                    [Page 2]
RFC 7005                  RTCP XR Jitter Buffer           September 2013

1.  Introduction

1.1.  De-Jitter Buffer Metrics Block

   This document defines a new block type to augment those defined in
   [RFC3611] for use in a range of RTP applications.

   The new block type provides information on de-jitter buffer
   configuration and performance.

   The metric belongs to the class of transport-related end-system

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