Post-Repair Loss RLE Report Block Type for RTCP XR

Document Type Replaced Internet-Draft (individual)
Authors Ali Begen  , Dong Hsu  , Michael Lague 
Last updated 2008-10-06 (latest revision 2008-05-25)
Replaced by RFC 5725
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IESG IESG state Replaced by draft-ietf-avt-post-repair-rtcp-xr
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines a new report block type within the framework of RTP Control Protocol (RTCP) Extended Reports (XR). One of the initial XR report block types is the Loss Run Length Encoding (RLE) Report Block. This report conveys the information regarding the individual Real-time Transport Protocol (RTP) packet receipt and loss events experienced during the RTCP interval preceding the transmission of the report. The new report, which is referred to as the Post-repair Loss RLE Report, carries the information regarding the remaining lost packets after all error-repair techniques are applied. By comparing the RTP packet receipts/losses before and after the error repair is completed, one can determine the effectiveness of the error-repair techniques in an aggregated fashion. This document also defines the signaling of the Post-repair Loss RLE Report in the Session Description Protocol (SDP).


Ali Begen (
Dong Hsu (
Michael Lague (

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