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RTP Control Protocol (RTCP) Extended Report (XR) Blocks for Summary Statistics Metrics Reporting
RFC 7004

Internet Engineering Task Force (IETF)                           G. Zorn
Request for Comments: 7004                                   Network Zen
Category: Standards Track                                      R. Schott
ISSN: 2070-1721                                         Deutsche Telekom
                                                              Q. Wu, Ed.
                                                                R. Huang
                                                                  Huawei
                                                          September 2013

        RTP Control Protocol (RTCP) Extended Report (XR) Blocks
                for Summary Statistics Metrics Reporting

Abstract

   This document defines three RTP Control Protocol (RTCP) Extended
   Report (XR) blocks that allow the reporting of loss, duplication, and
   discard summary statistics metrics in 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/rfc7004.

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.

Zorn, et al.                 Standards Track                    [Page 1]
RFC 7004                 Summary Stats XR Blocks          September 2013

Table of Contents

   1. Introduction ....................................................2
      1.1. Summary Statistics Metrics .................................2
      1.2. RTCP and RTCP Extended Reports .............................3
      1.3. Performance Metrics Framework ..............................3
      1.4. Applicability ..............................................3
   2. Terminology .....................................................3
   3. Transport-Related End-System Metrics ............................4
      3.1. Burst/Gap Loss Summary Statistics Block ....................4
           3.1.1. Report Block Structure ..............................5
           3.1.2. Definition of Fields in Loss Summary
                  Statistics Block ....................................5
      3.2. Burst/Gap Discard Summary Statistics Block .................7
           3.2.1. Report Block Structure ..............................8
           3.2.2. Definition of Fields in Burst/Gap Discard
                  Summary Statistics Block ............................8
   4. Application-Level Metrics ......................................10
      4.1. Frame Impairment Statistics Summary Block .................10
           4.1.1. Report Block Structure .............................11
           4.1.2. Definition of Fields in Frame Impairment
                  Statistics Summary Block ...........................11
   5. SDP Signaling ..................................................13
      5.1. SDP rtcp-xr Attribute Extension ...........................13
      5.2. Offer/Answer Usage ........................................13
   6. IANA Considerations ............................................13
      6.1. New RTCP XR Block Type Values .............................13
      6.2. New RTCP XR SDP Parameters ................................14
      6.3. Contact Information for Registrations .....................14
   7. Security Considerations ........................................14
   8. Acknowledgements ...............................................14
   9. References .....................................................14
      9.1. Normative References ......................................14
      9.2. Informative References ....................................15
   Appendix A.  Metrics Represented Using the Template from RFC 6390 .16

Zorn, et al.                 Standards Track                    [Page 2]
RFC 7004                 Summary Stats XR Blocks          September 2013

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