A Real-time Transport Protocol (RTP) Classifier Header Extension

Document Type Expired Internet-Draft (individual)
Authors Ken Carlberg  , Toerless Eckert 
Last updated 2014-04-24 (latest revision 2013-10-21)
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This Internet-Draft is no longer active.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 RTP header extension. The purpose of the extension is to provide additional information that further distinguishes the RTP datagram (and its payload) from other datagrams containing the same type of payload. The information may be used to assist functions performed by application layer gateways (such as Session Border Controller or MCUs) and/or by routers/switches through deep packet inspection. Examples of these functions include intelligent dropping of packets or (re)setting the IP header diff-serv code points at ingress/egress boundaries of a diff-serv domain.


Ken Carlberg (carlberg@g11.org.uk)
Toerless Eckert (eckert@cisco.com)

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