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 Metrics for Bulk Transport Capacity
Authors : Matt Mathis
Al Morton
Filename : draft-ietf-ippm-model-based-metrics-07.txt
Pages : 49
Date : 2015-10-19
Abstract:
We introduce a new class of Model Based Metrics designed to assess if
a complete Internet path can be expected to meet a predefined Target
Transport Performance by applying a suite of IP diagnostic tests to
successive subpaths. The subpath-at-a-time tests can be robustly
applied to key infrastructure, such as interconnects or even
individual devices, to accurately detect if any part of the
infrastructure will prevent paths traversing it from meeting the
Target Transport Performance.
For Bulk Transport Capacity, the IP diagnostics are built on test
streams that mimic TCP over the complete path and statistical
criteria for evaluating the packet transfer statistics of those
streams. The temporal structure of the test stream (bursts, etc)
mimic TCP or other transport protocol carrying bulk data over a long
path but are constructed to be independent of the details of the
subpath under test, end systems or applications. Likewise the
success criteria evaluates the packet transfer statistics of the
subpath against criteria determined by protocol performance models
applied to the Target Transport Performance of the complete path.
The success criteria also does not depend on the details of the
subpath, end systems or application.
Model Based Metrics exhibit several important new properties not
present in other Bulk Transport Capacity Metrics, including the
ability to reason about concatenated or overlapping subpaths. The
results are vantage independent which is critical for supporting
independent validation of tests by comparing results from multiple
measurement points.
This document does not define the IP diagnostic tests, but provides a
framework for designing suites of IP diagnostic tests that are
tailored to confirming that infrastructure can meet the predetermined
Target Transport Performance.
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:
https://tools.ietf.org/html/draft-ietf-ippm-model-based-metrics-07
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ippm-model-based-metrics-07
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