Chapter 12. Multiplexing and Tunneling

  • The Motivation for Multiplexing

  • Tunneling Multiplexed Compressed RTP

  • Other Approaches to Multiplexing

Multiplexing and tunneling provide an alternative to header compression, improving the efficiency of RTP by bundling multiple streams together inside a single transport connection. The aim is to amortize the size of the headers across multiple streams, reducing the per-stream overhead. This chapter discusses the motivation for multiplexing and outlines the mechanisms that can be used to multiplex RTP streams.

The Motivation for Multiplexing

Header compression reduces the size of the headers of a single RTP stream, on a hop-by-hop basis. It provides very efficient transport but requires cooperation from the network ...

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