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One-way Loss Pattern Sample Metrics (RFC3357)

IP.com Disclosure Number: IPCOM000009302D
Original Publication Date: 2002-Aug-01
Included in the Prior Art Database: 2002-Aug-15
Document File: 16 page(s) / 31K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Koodli: AUTHOR [+2]

Abstract

Using the base loss metric defined in RFC 2680, this document defines two derived metrics "loss distance" and "loss period", and the associated statistics that together capture loss patterns experienced by packet streams on the Internet. The Internet exhibits certain specific types of behavior (e.g., bursty packet loss) that can affect the performance seen by the users as well as the operators. The loss pattern or loss distribution is a key parameter that determines the performance observed by the users for certain real-time applications such as packet voice and video. For the same loss rate, two different loss distributions could potentially produce widely different perceptions of performance.

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Network Working Group                                          R. Koodli

Request for Comments: 3357                         Nokia Research Center

Category: Informational                                     R. Ravikanth

                                                                Axiowave

                                                             August 2002

                  One-way Loss Pattern Sample Metrics

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.

Copyright Notice

   Copyright (C) The Internet Society (2002).  All Rights Reserved.

Abstract

   Using the base loss metric defined in RFC 2680, this document defines

   two derived metrics "loss distance" and "loss period", and the

   associated statistics that together capture loss patterns experienced

   by packet streams on the Internet.  The Internet exhibits certain

   specific types of behavior (e.g., bursty packet loss) that can affect

   the performance seen by the users as well as the operators.  The loss

   pattern or loss distribution is a key parameter that determines the

   performance observed by the users for certain real-time applications

   such as packet voice and video.  For the same loss rate, two

   different loss distributions could potentially produce widely

   different perceptions of performance.

Koodli & Ravikanth           Informational                      [Page 1]

RFC 3357          One-way Loss Pattern Sample Metrics        August 2002

Table of Contents

   1. Introduction                                                     3

   2. Terminology                                                      3

   3. The Approach                                                     3

   4. Basic Definitions                                                4

   5.  Definitions for Samples of One-way Loss Distance, and One-way

        Loss Period                                                    5

       5.1. Metric Names  . . . . . . . . . . . . . . . . . . . . . .  5

             5.1.1. Type-P-One-Way-Loss-Distance-Stream . . . . . . .  5

             5.1.2. Type-P-One-Way-Loss-Period-Stream . . . . . . . .  5

       5.2. Metric Parameters . . . . . . . . . . . . . . . . . . . .  5

       5.3. Metric Units  . . . . . . . . . . . . . . . . . . . . . .  5

  ®..