Network Working Group C. Demichelis
Request for Comments: 3393 Telecomitalia Lab
Category: Standards Track P. Chimento
Ericsson IPI
November 2002
IP Packet Delay Variation Metric
for IP Performance Metrics (IPPM)
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2002). All Rights Reserved.
Abstract
This document refers to a metric for variation in delay of packets
across Internet paths. The metric is based on the difference in the
One-Way-Delay of selected packets. This difference in delay is
called "IP Packet Delay Variation (ipdv)".
The metric is valid for measurements between two hosts both in the
case that they have synchronized clocks and in the case that they are
not synchronized. We discuss both in this document.
Table of Contents
1 Introduction..................................................... 2
1.1 Terminology.................................................. 3
1.2 Definition................................................... 3
1.3 Motivation................................................... 4
1.4 General Issues Regarding Time................................ 5
2 A singleton definition of a One-way-ipdv metric.................. 5
2.1 Metric name.................................................. 6
2.2 Metric parameters............................................ 6
2.3 Metric unit.................................................. 6
2.4 Definition................................................... 6
2.5 Discussion................................................... 7
2.6 Methodologies................................................ 9
2.7 Errors and Uncertainties.....................................10
Demichelis & Chimento Standards Track