Advanced Stream and Sampling Framework for IPPM
draft-ietf-ippm-2330-update-00

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Last updated 2013-07-11
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Network Working Group                                          J. Fabini
Internet-Draft                           Vienna University of Technology
Intended status: Informational                                 A. Morton
Expires: January 11, 2014                                      AT&T Labs
                                                           July 10, 2013

            Advanced Stream and Sampling Framework for IPPM
                     draft-ietf-ippm-2330-update-00

Abstract

   To obtain repeatable results in modern networks, test descriptions
   need an expanded stream parameter framework that also augments
   aspects specified as Type-P for test packets.  This memo proposes to
   update the IP Performance Metrics (IPPM) Framework with advanced
   considerations for measurement methodology and testing.  The existing
   framework mostly assumes deterministic connectivity, and that a
   single test stream will represent the characteristics of the path
   when it is aggregated with other flows.  Networks have evolved and
   test stream descriptions must evolve with them, otherwise unexpected
   network features may dominate the measured performance.  This memo
   describes new stream parameters for both network characterization and
   support of application design using IPPM metrics.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 11, 2014.

Fabini & Morton         Expires January 11, 2014                [Page 1]
Internet-Draft              Advanced Sampling                  July 2013

Copyright Notice

   Copyright (c) 2013 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1.  Definition: Reactive Network Behavior  . . . . . . . . . .  3
   2.  Scope  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  New Stream Parameters  . . . . . . . . . . . . . . . . . . . .  4
     3.1.  Test Packet Type-P . . . . . . . . . . . . . . . . . . . .  5
       3.1.1.  Test Packet Length . . . . . . . . . . . . . . . . . .  6
       3.1.2.  Test Packet Payload Content Optimization . . . . . . .  6
     3.2.  Packet History . . . . . . . . . . . . . . . . . . . . . .  6
     3.3.  Access Technology Change . . . . . . . . . . . . . . . . .  7
     3.4.  Time-Slotted Randomness Cancellation . . . . . . . . . . .  7
   4.  Conclusions  . . . . . . . . . . . . . . . . . . . . . . . . .  8
   5.  Security Considerations  . . . . . . . . . . . . . . . . . . .  9
   6.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  9
   7.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . .  9
   8.  References . . . . . . . . . . . . . . . . . . . . . . . . . .  9
     8.1.  Normative References . . . . . . . . . . . . . . . . . . .  9
     8.2.  Informative References . . . . . . . . . . . . . . . . . . 10
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 11

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1.  Introduction

   The IETF IP Performance Metrics (IPPM) working group first created a
   framework for metric development in [RFC2330].  This framework has
   stood the test of time and enabled development of many fundamental
   metrics, while only being updated once in a specific area [RFC5835].

   The IPPM framework [RFC2330] generally relies on several assumptions,
   one of which is not explicitly stated but assumed: the network
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