RTP Header Extension for RTCP Source Description Items

Document Type Replaced Internet-Draft (individual)
Last updated 2014-11-11
Replaced by draft-ietf-avtext-sdes-hdr-ext
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Source Description (SDES) items are normally transported in RTP control protocol (RTCP). In some cases it can be beneficial to speed up the delivery of these items. Mainly when a new source (SSRC) joins an RTP session and the receivers needs this source's relation to other sources and its synchronization context, which are fully or partially identified using SDES items. To enable this optimization, this document specifies a new RTP header extension that can carry any type of SDES items.


Magnus Westerlund (magnus.westerlund@ericsson.com)
Bo Burman (bo.burman@ericsson.com)
Roni Even (roni.even@mail01.huawei.com)
Mo Zanaty (mzanaty@cisco.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)