RTP Control Protocol (RTCP) Extended Report (XR) Block for Burst/Gap Discard Metric Reporting
RFC 7003
| Document | Type | RFC - Proposed Standard (September 2013; Errata) | |
|---|---|---|---|
| Authors | Alan Clark , Rachel Huang , Qin Wu | ||
| Last updated | 2020-01-21 | ||
| Stream | Internent Engineering Task Force (IETF) | ||
| Formats | plain text html pdf htmlized (tools) htmlized with errata bibtex | ||
| Reviews | |||
| Stream | WG state | WG Document | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 7003 (Proposed Standard) | |
| Action Holders |
(None)
|
||
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Gonzalo Camarillo | ||
| IESG note | Dan Romascanu (dromasca@avaya.com) is the document shepherd. | ||
| Send notices to | (None) | ||
| IANA | IANA review state | IANA OK - Actions Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) A. Clark
Request for Comments: 7003 Telchemy
Category: Standards Track R. Huang
ISSN: 2070-1721 Q. Wu, Ed.
Huawei
September 2013
RTP Control Protocol (RTCP) Extended Report (XR) Block
for Burst/Gap Discard Metric Reporting
Abstract
This document defines an RTP Control Protocol (RTCP) Extended Report
(XR) block that allows the reporting of burst and gap discard metrics
for use 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/rfc7003.
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 7003 RTCP XR Burst/Gap Discard September 2013
Table of Contents
1. Introduction ....................................................2
1.1. Burst/Gap Discard Metrics Block ............................2
1.2. RTCP and RTCP Extended Reports .............................3
1.3. Performance Metrics Framework ..............................3
1.4. Applicability ..............................................3
2. Terminology .....................................................3
3. Burst/Gap Discard Metrics Block .................................4
3.1. Report Block Structure .....................................5
3.2. Definition of Fields in Burst/Gap Discard Metrics Block ....5
3.3. Derived Metrics Based on Reported Metrics ..................7
4. Considerations for Voice-over-IP Applications ...................7
5. SDP Signaling ...................................................8
5.1. SDP rtcp-xr Attribute Extension ............................8
5.2. Offer/Answer Usage .........................................8
6. IANA Considerations .............................................8
6.1. New RTCP XR Block Type Value ...............................8
6.2. New RTCP XR SDP Parameter ..................................9
6.3. Contact Information for Registrations ......................9
7. Security Considerations .........................................9
8. Contributors ....................................................9
9. Acknowledgments .................................................9
10. References ....................................................10
10.1. Normative References .....................................10
10.2. Informative References ...................................10
Appendix A. Metrics Represented Using the Template from RFC 6390..12
1. Introduction
1.1. Burst/Gap Discard 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
supports the reporting of the proportion of packets discarded by the
jitter buffer at the receiver, using packet discard logic according
to the jitter buffer algorithms. The discards during discard bursts
are reported, together with the number of bursts. This block is
intended to be used in conjunction with [RFC7002], which provides the
total packets discarded and on which this block therefore depends.
However, the metric in [RFC7002] may be used independently of the
metrics in this block.
This block provides information on transient IP problems. Burst/gap
metrics are typically used in cumulative reports; however, they also
may be used in interval reports (see the Interval Metric flag in
Section 3.2). The burstiness of packet discard affects user
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