TWAMP Value-Added Octets
draft-ietf-ippm-twamp-value-added-octets-00

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Last updated 2012-02-08
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Network Working Group                                     S. Baillargeon
INTERNET-DRAFT                                                 C. Flinta
Intended Status: Informational                               A. Johnsson
Expires: August 8, 2012                                        S. Ekelin
                                                                Ericsson
                                                        February 8, 2012

                        TWAMP Value-Added Octets
            draft-ietf-ippm-twamp-value-added-octets-00.txt

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.

Abstract

   This memo describes optional extensions 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.

Status of this Memo 

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

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
   other groups may also distribute working documents as
   Internet-Drafts.

   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
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   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html
 

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Copyright and License Notice

   Copyright (c) 2011 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  . . . . . . . . . . . . . . . . 5
   4  TWAMP Control Extensions . . . . . . . . . . . . . . . . . . . . 6
   5  Extended TWAMP Test  . . . . . . . . . . . . . . . . . . . . . . 7
      5.1  Sender Behavior . . . . . . . . . . . . . . . . . . . . . . 7
         5.1.1  Packet Timings . . . . . . . . . . . . . . . . . . . . 7
         5.1.2  Session-Sender Packet Format . . . . . . . . . . . . . 7
      5.2  Reflector behavior  . . . . . . . . . . . . . . . . . . .  12
         5.2.1  Session-Reflector Packet Format  . . . . . . . . . .  13
      5.3  Additional Considerations . . . . . . . . . . . . . . . .  14
   6  Security Considerations  . . . . . . . . . . . . . . . . . . .  14
   7  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  14
   8  References . . . . . . . . . . . . . . . . . . . . . . . . . .  15
      8.1  Normative References  . . . . . . . . . . . . . . . . . .  15
      8.2  Informative References  . . . . . . . . . . . . . . . . .  15
   Author's Addresses  . . . . . . . . . . . . . . . . . . . . . . .  16

 

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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].

   This memo describes an extension to the Two-Way Active Measurement
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