Ericsson TWAMP Value-Added Octets
draft-ietf-ippm-twamp-value-added-octets-05

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Document Type Active Internet-Draft (ippm WG)
Last updated 2012-07-23
Stream IETF
Intended RFC status Informational
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Stream WG state WG Document
Consensus Unknown
Document shepherd None
IESG IESG state IESG Evaluation::AD Followup
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Needs a YES.
Responsible AD Wesley Eddy
IESG note Henk Uijterwaal (henk@uijterwaal.nl) is the document shepherd.
Send notices to ippm-chairs@tools.ietf.org, draft-ietf-ippm-twamp-value-added-octets@tools.ietf.org
Network Working Group                                     S. Baillargeon
INTERNET-DRAFT                                                 C. Flinta
Intended Status: Informational                               A. Johnsson
Expires: January 20, 2013                                      S. Ekelin
                                                                Ericsson
                                                           July 19, 2012

                   Ericsson TWAMP Value-Added Octets
            draft-ietf-ippm-twamp-value-added-octets-05.txt

Abstract

   This memo describes an extension to the TWAMP test protocol for
   identifying and managing packet trains, which enables measuring
   capacity metrics like the available path capacity, tight section
   capacity and UDP delivery rate in the forward and reverse path
   directions.

   This memo contains the description of a working prototype. It does
   not represent a consensus of the IETF community. The IETF community
   is currently working on the problem statement and has not reached
   consensus on the preferred method for measuring capacity metrics. 

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
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 20, 2013.

 

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Copyright and License Notice

   Copyright (c) 2012 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
   to this document. Code Components extracted from this document must
   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.

 

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Table of Contents

   1  Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 4
      1.1  Requirements Language . . . . . . . . . . . . . . . . . . . 4
   2  Purpose and scope  . . . . . . . . . . . . . . . . . . . . . . . 4
   3  Capacity Measurement Principles  . . . . . . . . . . . . . . . . 6
   4  TWAMP Control Extensions . . . . . . . . . . . . . . . . . . . . 7
      4.1  Additional Considerations . . . . . . . . . . . . . . . . . 8
   5  Extended TWAMP Test  . . . . . . . . . . . . . . . . . . . . . . 8
      5.1  Sender Behavior . . . . . . . . . . . . . . . . . . . . . . 9
         5.1.1  Packet Timings . . . . . . . . . . . . . . . . . . . . 9
         5.1.2  Session-Sender Packet Format . . . . . . . . . . . . . 9
      5.2  Reflector behavior  . . . . . . . . . . . . . . . . . . .  13
         5.2.1  Session-Reflector Packet Format  . . . . . . . . . .  15
      5.3  Additional Considerations . . . . . . . . . . . . . . . .  15
   6  Experiments  . . . . . . . . . . . . . . . . . . . . . . . . .  16
   7  Security Considerations  . . . . . . . . . . . . . . . . . . .  16
   8  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  16
   9  References . . . . . . . . . . . . . . . . . . . . . . . . . .  17
      9.1  Normative References  . . . . . . . . . . . . . . . . . .  17
      9.2  Informative References  . . . . . . . . . . . . . . . . .  17
   Author's Addresses  . . . . . . . . . . . . . . . . . . . . . . .  18

 

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1  Introduction

   The notion of embedding a number of meaningful fields in the padding
   octets has been established as a viable methodology for carrying
   additional information within the TWAMP-Test protocol running between
   a Session-Sender and a Session-Reflector [RFC5357] [RFC6038].
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