RTP Control Protocol (RTCP) Extended Report (XR) Block for Independent Reporting of Burst/Gap Discard Metric
draft-ietf-xrblock-independent-burst-gap-discard-00
Audio/Video Transport Working Group V. Singh
Internet-Draft callstats.io
Intended status: Standards Track C. Perkins
Expires: June 15, 2016 University of Glasgow
A. Clark
Telchemy
R. Huang
Huawei
December 13, 2015
RTP Control Protocol (RTCP) Extended Report (XR) Block for Independent
Reporting of Burst/Gap Discard Metric
draft-ietf-xrblock-independent-burst-gap-discard-00
Abstract
This document defines an RTP Control Protocol (RTCP) Extended Report
(XR) block that allows the reporting of burst and gap discard metrics
independently of the burst and gap loss metrics for use in a range of
RTP applications.
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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 . . . . . . . . . . . . . . . . . . . . . . 4
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Burst/Gap Discard Metrics Block . . . . . . . . . . . . . . . 5
3.1. Report Block Structure . . . . . . . . . . . . . . . . . 5
3.2. Definition of Fields in Burst/Gap Discard Metrics Block . 5
3.3. Derived Metrics Based on the Reported Metrics . . . . . . 7
4. Considerations for Voice-over-IP Applications . . . . . . . . 8
5. SDP Signaling . . . . . . . . . . . . . . . . . . . . . . . . 8
5.1. SDP rtcp-xr Attribute Extension . . . . . . . . . . . . . 8
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 . . . . . . . . . . . . . . . . 9
6.3. Contact Information for Registrations . . . . . . . . . . 9
7. Security Considerations . . . . . . . . . . . . . . . . . . . 9
8. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 9
9. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 10
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 that extends the metrics
defined in [RFC7003], the metrics in this report block can be used in
a range of RTP applications. The new block type reports the
proportion of packets discarded by the jitter buffer at the receiver
in a burst and number of packets discarded depends on the de-jitter
buffer algorithm implemented by the endpoint.
The new report block defined in this document is different from the
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