draft-ietf-rmcat-sbd-02.txt   draft-ietf-rmcat-sbd-03.txt 
RTP Media Congestion Avoidance Techniques D. Hayes, Ed. RTP Media Congestion Avoidance Techniques D. Hayes, Ed.
Internet-Draft University of Oslo Internet-Draft University of Oslo
Intended status: Experimental S. Ferlin Intended status: Experimental S. Ferlin
Expires: April 21, 2016 Simula Research Laboratory Expires: April 21, 2016 Simula Research Laboratory
M. Welzl M. Welzl
K. Kiorth K. Hiorth
University of Oslo University of Oslo
October 19, 2015 October 19, 2015
Shared Bottleneck Detection for Coupled Congestion Control for RTP Shared Bottleneck Detection for Coupled Congestion Control for RTP
Media. Media.
draft-ietf-rmcat-sbd-02 draft-ietf-rmcat-sbd-03
Abstract Abstract
This document describes a mechanism to detect whether end-to-end data This document describes a mechanism to detect whether end-to-end data
flows share a common bottleneck. It relies on summary statistics flows share a common bottleneck. It relies on summary statistics
that are calculated by a data receiver based on continuous that are calculated by a data receiver based on continuous
measurements and regularly fed to a grouping algorithm that runs measurements and regularly fed to a grouping algorithm that runs
wherever the knowledge is needed. This mechanism complements the wherever the knowledge is needed. This mechanism complements the
coupled congestion control mechanism in draft-welzl-rmcat-coupled-cc. coupled congestion control mechanism in draft-welzl-rmcat-coupled-cc.
skipping to change at page 18, line 38 skipping to change at page 18, line 38
Non-authenticated RTCP packets carrying shared bottleneck indications Non-authenticated RTCP packets carrying shared bottleneck indications
and summary statistics could allow attackers to alter the bottleneck and summary statistics could allow attackers to alter the bottleneck
sharing characteristics for private gain or disruption of other sharing characteristics for private gain or disruption of other
parties communication. parties communication.
9. Change history 9. Change history
Changes made to this document: Changes made to this document:
WG-02->WG-03 : Correct misspelled author
WG-01->WG-02 : Removed ambiguity associated with the term WG-01->WG-02 : Removed ambiguity associated with the term
"congestion". Expanded the description of "congestion". Expanded the description of
initialisation messages. Removed PDV metric. initialisation messages. Removed PDV metric.
Added description of incremental weighted metric Added description of incremental weighted metric
calculations for skew_est. Various clarifications calculations for skew_est. Various clarifications
based on implementation work. Fixed typos and based on implementation work. Fixed typos and
tuned parameters. tuned parameters.
WG-00->WG-01 : Moved unbiased skew section to replace skew WG-00->WG-01 : Moved unbiased skew section to replace skew
estimate, more robust variability estimator, the estimate, more robust variability estimator, the
 End of changes. 3 change blocks. 
2 lines changed or deleted 4 lines changed or added

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