A Survey of Lower-than-Best Effort Transport Protocols

Document Type Replaced Internet-Draft (individual)
Author Michael Welzl 
Last updated 2010-05-21 (latest revision 2009-03-03)
Replaced by RFC 6297
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document provides a survey of transport protocols which are designed to have a smaller bandwidth and/or delay impact on standard TCP than standard TCP itself when they share a bottleneck with it. Such protocols could be used for low-priority "background" traffic, as they provide what is sometimes called a "less than" (or "lower than") best effort service.


Michael Welzl (michael.welzl@uibk.ac.at)

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