Browse Prior Art Database

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

� � �...