RFC 8337 on Model-Based Metrics for Bulk Transport Capacity
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Subject: RFC 8337 on Model-Based Metrics for Bulk Transport Capacity
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A new Request for Comments is now available in online RFC libraries.
RFC 8337
Title: Model-Based Metrics for Bulk Transport
Capacity
Author: M. Mathis,
A. Morton
Status: Experimental
Stream: IETF
Date: March 2018
Mailbox: mattmathis@google.com,
acmorton@att.com
Pages: 55
Characters: 138647
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-ippm-model-based-metrics-13.txt
URL: https://www.rfc-editor.org/info/rfc8337
DOI: 10.17487/RFC8337
This document introduces 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 critical infrastructure, such as network
interconnections or even individual devices, to accurately detect if
any part of the infrastructure will prevent paths traversing it from
meeting the Target Transport Performance.
Model-Based Metrics rely on mathematical models to specify a Targeted
IP Diagnostic Suite, a set of IP diagnostic tests designed to assess
whether common transport protocols can be expected to meet a
predetermined Target Transport Performance over an Internet path.
For Bulk Transport Capacity, the IP diagnostics are built using test
streams and statistical criteria for evaluating the packet transfer
that mimic TCP over the complete path. The temporal structure of the
test stream (e.g., bursts) mimics TCP or other transport protocols
carrying bulk data over a long path. However, they 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
applications.
This document is a product of the IP Performance Measurement Working Group of the IETF.
EXPERIMENTAL: This memo defines an Experimental Protocol for the
Internet community. It does not specify an Internet standard of any
kind. Discussion and suggestions for improvement are requested.
Distribution of this memo is unlimited.
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