I-D ACTION:draft-irtf-tmrg-metrics-09.txt

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	Title		: Metrics for the Evaluation of Congestion Control Mechanisms
	Author(s)	: S. Floyd
	Filename	: draft-irtf-tmrg-metrics-09.txt,.ps
	Pages		: 25
	Date		: 2007-3-28

This document discusses the metrics to be considered in an
    evaluation of new or modified congestion control mechanisms for the
    Internet.  These include metrics for the evaluation of new transport
    protocols, of proposed modifications to TCP, of application-level
    congestion control, and of Active Queue Management (AQM) mechanisms
    in the router.  This document is the first in a series of documents
    aimed at improving the models that we use in the evaluation of
    transport protocols.

    This document is a product of the Transport Modeling Research Group
    (TRMG), and has received detailed feedback from many members of the
    Research Group (RG).  As the document tries to make clear, there is
    not necessarily a consensus within the research community (or the
    IETF community, the vendor community, the operations community, or
    any other community) about the metrics that congestion control
    mechanisms should be designed to optimize, in terms of tradeoffs
    between throughput and delay, fairness between competing flows, and
    the like.  However, we believe that there is a clear consensus that
    congestion control mechanisms should be evaluated in terms of
    tradeoffs between a range of metrics, rather than in terms of
    optimizing for a single metric.

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