Multiplexing Scheme for RTP Flows between Access Routers

Document Type Expired Internet-Draft (avt WG)
Authors Gregor Bochmann  , Gang Luo  , Khalil El-khatib 
Last updated 1999-10-27
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This draft proposes a light-weight data driven approach for multiplexing low bit rate RTP streams at the edge router of the Internet in order to reduce the RTP/UDP/IP header overhead associated with each RTP stream. Audio packets from different sources in a local access network destined to different users in the same remote access network are multiplexed into one packet, with the original RTP/UDP/IP header of each packet replaced with a mini-header (2 bytes), resulting in a reduction of the overhead. Access routers can use the IP telephony Border Gateway Protocol (TBGP) to exchange the reachability of IP destinations in their domains.


Gregor Bochmann (
Gang Luo (
Khalil El-khatib (

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