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
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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 2013Table 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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