datatracker.ietf.org
Sign in
Version 5.6.2.p3, 2014-07-31
Report a bug

TWAMP Burst Rate Measurement Features
draft-morton-ippm-twamp-rate-05

Document type: Active Internet-Draft (individual in tsv area)
Document stream: IETF
Last updated: 2014-02-13
Intended RFC status: Proposed Standard
Other versions: plain text, xml, pdf, html

IETF State: (None)
Document shepherd: No shepherd assigned

IESG State: AD is watching
Responsible AD: Martin Stiemerling
Send notices to: acmorton@att.com, lencia@att.com, draft-morton-ippm-twamp-rate@tools.ietf.org

Network Working Group                                          A. Morton
Internet-Draft                                             L. Ciavattone
Updates: 5357 (if approved)                                    AT&T Labs
Intended status: Standards Track                       February 13, 2014
Expires: August 17, 2014

                 TWAMP Burst Rate Measurement Features
                    draft-morton-ippm-twamp-rate-05

Abstract

   This memo describes two rate-measurement features for the core
   specification of TWAMP - the Two-Way Active Measurement Protocol: an
   optional capability where the reflector host responds with a
   controlled burst of test-session packets (instead of a single
   packet), and an optional test mode that requires the responder to
   measure a burst of test packets and communicate the results in
   truncated packet(s).  Both features add the ability to control packet
   size in the tested direction, enabling asymmetrical packet size
   testing.  This draft defines the modes in terms of traditional UDP
   test packets.  Use of TCP transport instead of UDP may be desirable,
   but is deferred to other work.

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
   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 August 17, 2014.

Morton & Ciavattone      Expires August 17, 2014                [Page 1]
Internet-Draft              Burst Rate & Size              February 2014

Copyright Notice

   Copyright (c) 2014 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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Alternate Transport Protocol Selection  . . . . . . . . .   3
   2.  Purpose and Scope . . . . . . . . . . . . . . . . . . . . . .   4
   3.  TWAMP Control Extensions  . . . . . . . . . . . . . . . . . .   5
     3.1.  Connection Setup with New Features  . . . . . . . . . . .   5
     3.2.  Burst Generation: Request-TW-Session Packet Format  . . .   5
     3.3.  Burst Measurement: Request-TW-Session Packet Format . . .   7
     3.4.  Burst Gen and Meas: Accept Session Packet Format  . . . .   8
     3.5.  Burst Gen and Meas: Stopping Test Sessions  . . . . . . .   8
     3.6.  Additional considerations . . . . . . . . . . . . . . . .   8
   4.  Burst Generation in TWAMP Test  . . . . . . . . . . . . . . .   9
     4.1.  Sender Behavior . . . . . . . . . . . . . . . . . . . . .   9
       4.1.1.  Packet Timings  . . . . . . . . . . . . . . . . . . .   9
       4.1.2.  Packet Formats and Contents . . . . . . . . . . . . .   9
     4.2.  Reflector Behavior  . . . . . . . . . . . . . . . . . . .  10
       4.2.1.  Session-Reflector Burst Packet Format and Contents  .  10
   5.  Burst Measurement in TWAMP Test . . . . . . . . . . . . . . .  12
     5.1.  Sender Behavior . . . . . . . . . . . . . . . . . . . . .  12
       5.1.1.  Packet Timings  . . . . . . . . . . . . . . . . . . .  12
       5.1.2.  Packet Formats and Contents . . . . . . . . . . . . .  12
     5.2.  Reflector Behavior  . . . . . . . . . . . . . . . . . . .  13
       5.2.1.  Session-Reflector Burst Measurement Response Packet
               Format and Contents . . . . . . . . . . . . . . . . .  14
   6.  Special Case of One-packet Bursts . . . . . . . . . . . . . .  16
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  16

[include full document text]