A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the IP Performance Metrics Working Group of the
IETF.
Title : Model Based Bulk Performance Metrics
Author(s) : Matt Mathis
Al Morton
Filename : draft-ietf-ippm-model-based-metrics-00.txt
Pages : 33
Date : 2013-06-21
Abstract:
We introduce a new class of model based metrics designed to determine
if a long path can meet predefined end-to-end application performance
targets. This is done by subpath at a time testing -- by applying a
suite of single property tests to successive subpaths of a long path.
In many cases these single property tests are based on existing IPPM
metrics, with the addition of success and validity criteria. The
subpath at a time tests are designed to facilitate IP providers
eliminating all known conditions that might prevent the full end-to-
end path from meeting the users target performance.
This approach makes it possible to to determine the IP performance
requirements needed to support the desired end-to-end TCP
performance. The IP metrics are based on traffic patterns that mimic
TCP but are precomputed independently of the actual behavior of TCP
over the subpath under test. This makes the measurements open loop,
eliminating nearly all of the difficulties encountered by traditional
bulk transport metrics, which rely on congestion control equilibrium
behavior.
A natural consequence of this methodology is verifiable network
measurement: measurements from any given vantage point are repeatable
from other vantage points.
Formatted: Fri Jun 21 18:23:29 PDT 2013
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ippm-model-based-metrics
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-ippm-model-based-metrics-00
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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