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Framework for IP Performance Metrics (RFC2330)

IP.com Disclosure Number: IPCOM000002898D
Original Publication Date: 1998-May-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 32 page(s) / 88K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

V. Paxson: AUTHOR [+4]

Abstract

The purpose of this memo is to define a general framework for particular metrics to be developed by the IETF's IP Performance Metrics effort, begun by the Benchmarking Methodology Working Group (BMWG) of the Operational Requirements Area, and being continued by the IP Performance Metrics Working Group (IPPM) of the Transport Area.

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This is the abbreviated version, containing approximately 3% of the total text.

Network Working Group V. Paxson

Request for Comments: 2330 Lawrence Berkeley National Lab

Category: Informational G. Almes

Advanced Network & Services

J. Mahdavi

M. Mathis

Pittsburgh Supercomputer Center

May 1998

Framework for IP Performance Metrics

1. Status of this Memo

This memo provides information for the Internet community. It does

not specify an Internet standard of any kind. Distribution of this

memo is unlimited.

2. Copyright Notice

Copyright (C) The Internet Society (1998). All Rights Reserved.

Table of Contents

1. STATUS OF THIS MEMO.............................................1

2. COPYRIGHT NOTICE................................................1

3. INTRODUCTION....................................................2

4. CRITERIA FOR IP PERFORMANCE METRICS.............................3

5. TERMINOLOGY FOR PATHS AND CLOUDS................................4

6. FUNDAMENTAL CONCEPTS............................................5

6.1 Metrics......................................................5

6.2 Measurement Methodology......................................6

6.3 Measurements, Uncertainties, and Errors......................7

7. METRICS AND THE ANALYTICAL FRAMEWORK............................8

8. EMPIRICALLY SPECIFIED METRICS..................................11

9. TWO FORMS OF COMPOSITION.......................................12

9.1 Spatial Composition of Metrics..............................12

9.2 Temporal Composition of Formal Models and Empirical Metrics.13

10. ISSUES RELATED TO TIME........................................14

10.1 Clock Issues...............................................14

10.2 The Notion of "Wire Time"..................................17

11. SINGLETONS, SAMPLES, AND STATISTICS............................19

11.1 Methods of Collecting Samples..............................20

11.1.1 Poisson Sampling........................................21

11.1.2 Geometric Sampling......................................22

11.1.3 Generating Poisson Sampling Intervals...................22

11.2 Self-Consistency...........................................24

11.3 Defining Statistical Distributions.........................25

11.4 Testing For Goodness-of-F...