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I-D ACTION:draft-ietf-bmwg-dsmterm-05.txt

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Benchmarking Methodology Working Group of the IETF.

	Title		: Terminology for Benchmarking Network-layer Traffic 
                          Control Mechanisms
	Author(s)	: J. Perser, D. Newman
	Filename	: draft-ietf-bmwg-dsmterm-05.txt
	Pages		: 33
	Date		: 2003-2-19
This document describes terminology for the benchmarking of
devices that implement traffic control based on IP precedence or
diff-serv code point criteria.
New terminology is needed because most existing measurements
assume the absence of congestion and only a single per-hop-
behavior. This document introduces several new terms that will
allow measurements to be taken during periods of congestion.
Another key difference from existing terminology is the definition
of measurements as observed on egress as well as ingress of a
device/system under test. Again, the existence of congestion
requires the addition of egress measurements as well as those
taken on ingress; without observing traffic leaving a
device/system it is not possible to say whether traffic-control
mechanisms effectively dealt with congestion.
The principal measurements introduced in this document are vectors
for rate, delay, and jitter, all of which can be observed with or
without congestion of the DUT/SUT.
This document describes only those terms relevant to measuring
behavior of a device or a group of devices using one of these two
mechanisms. End-to-end and service-level measurements are beyond
the scope of this document.

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