I-D Action:draft-floyd-tsvwg-besteffort-03.txt

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	Title           : Comments on the Usefulness of Simple Best-Effort Traffic
	Author(s)       : S. Floyd, I. Property
	Filename        : draft-floyd-tsvwg-besteffort-03.txt
	Pages           : 20
	Date            : 2008-01-29

This document presents some observations on "simple best-effort"
traffic, defined loosely for the purposes of this document as
Internet traffic that is not covered by Quality of Service
mechanisms, congestion-based pricing, cost-based fairness, admissions
control, or the like.  One observation is that simple best-effort
traffic serves a useful role in the Internet, and is worth keeping.
While differential treatment of traffic can clearly be useful, we
believe such mechanisms are useful as **adjuncts** to simple best-
effort traffic, not as **replacements** of simple best-effort
traffic.  A second observation is that for simple best-effort
traffic, some form of rough flow rate fairness is a useful goal for
resource allocation, where "flow rate fairness" is defined by the
goal of equal flow rates for different flows over the same path.

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