A Survey of Lower-than-Best-Effort Transport Protocols (RFC6297)
Original Publication Date: 2011-Jun-01
Included in the Prior Art Database: 2011-Jun-29
Internet Society Requests For Comment (RFCs)
M. Welzl: AUTHOR [+2]
This document presents a brief survey of proposals to attain a Less- than-Best-Effort (LBE) service by means of end-host mechanisms. We loosely define an LBE service as a service which results in smaller bandwidth and/or delay impact on standard TCP than standard TCP itself, when sharing a bottleneck with it. We refer to systems that are designed to provide this service as LBE systems. With the exception of TCP Vegas, which we present for historical reasons, we exclude systems that have been noted to exhibit LBE behavior under some circumstances but were not designed for this purpose (e.g., RAPID [Kon09]).
Internet Engineering Task Force (IETF) M. Welzl Request for Comments: 6297 University of Oslo Category: Informational D. Ros ISSN: 2070-1721 IT / Telecom Bretagne June 2011
A Survey of Lower-than-Best-Effort Transport Protocols
This document provides a survey of transport protocols that 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 delay-insensitive "background" traffic, as they provide what is sometimes called a "less than" (or "lower than") best-effort service.
Status of This Memo
This document is not an Internet Standards Track specification; it is published for informational purposes.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6297.
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Ros Informational [Page 1]
RFC 6297 LBE Transport Survey June 2011
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Delay-Based Transport Protocols . . . . . . . . . . . . . . . 3 2.1. Accuracy of Delay-Based Congestion Predictors . . . . . . 6 2.2. Potential Issues w...