IPv6 Performance and Diagnostic Metrics (PDM) Destination Option
draft-ietf-ippm-6man-pdm-option-09

Document Type Active Internet-Draft (ippm WG)
Last updated 2017-03-17 (latest revision 2017-03-13)
Stream IETF
Intended RFC status Proposed Standard
Formats plain text pdf html bibtex
Reviews
Stream WG state Submitted to IESG for Publication Aug 2016
Document shepherd Al Morton
Shepherd write-up Show (last changed 2016-07-09)
IESG IESG state IESG Evaluation
Consensus Boilerplate Yes
Telechat date On agenda of 2017-04-13 IESG telechat
Needs 9 more YES or NO OBJECTION positions to pass.
Responsible AD Spencer Dawkins
Send notices to "Bill Cerveny" <ietf@wjcerveny.com>, "Al Morton" <acmorton@att.com>
IANA IANA review state Version Changed - Review Needed
IANA action state None
INTERNET-DRAFT                                                 N. Elkins
                                                         Inside Products
                                                             R. Hamilton
                                              Chemical Abstracts Service
                                                            M. Ackermann
Intended Status: Proposed Standard                         BCBS Michigan
Expires: September 14, 2017                               March 13, 2017

    IPv6 Performance and Diagnostic Metrics (PDM) Destination Option
                   draft-ietf-ippm-6man-pdm-option-09

Abstract

   To assess performance problems,  measurements based on optional
   sequence numbers and timing may be embedded in each packet.  Such
   measurements may be interpreted in real-time or after the fact. An
   implementation of the existing IPv6 Destination Options extension
   header, the Performance and Diagnostic Metrics (PDM) Destination
   Options extension header as well as the field limits, calculations,
   and usage of the PDM in measurement are included in this document.

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
   material or to cite them other than as "work in progress."

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/1id-abstracts.html

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

 

Elkins                 Expires September 14, 2017               [Page 1]
INTERNET DRAFT        ietf-ippm-6man-pdm-option-09        March 13, 2017

Copyright and License Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors. All rights reserved.

   IETF Trust Legal Provisions of 28-dec-2009, Section 6.b(i), paragraph
   3: 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.     

 

Elkins                 Expires September 14, 2017               [Page 2]
INTERNET DRAFT        ietf-ippm-6man-pdm-option-09        March 13, 2017

Table of Contents

   1  Background  . . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1 Terminology  . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.2 End User Quality of Service (QoS)  . . . . . . . . . . . . .  4
     1.3 Need for a Packet Sequence Number (PSN)  . . . . . . . . . .  5
     1.4 Rationale for defined solution . . . . . . . . . . . . . . .  5
     1.5 PDM Works in Collaboration with Other Headers  . . . . . . .  6
     1.6 IPv6 Transition Technologies . . . . . . . . . . . . . . . .  7
   2 Measurement Information Derived from PDM . . . . . . . . . . . .  7
     2.1 Round-Trip Delay . . . . . . . . . . . . . . . . . . . . . .  7
     2.2 Server Delay . . . . . . . . . . . . . . . . . . . . . . . .  8
   3 Performance and Diagnostic Metrics Destination Option Layout . .  8
     3.1 Destination Options Header . . . . . . . . . . . . . . . . .  8
     3.2 Performance and Diagnostic Metrics Destination Option  . . .  8
       3.2.1 PDM Layout . . . . . . . . . . . . . . . . . . . . . . .  8
       3.2.2 Base Unit for Time Measurement . . . . . . . . . . . . . 10
       3.2.3 Considerations of this time-differential
             representation . . . . . . . . . . . . . . . . . . . . . 11
         3.2.3.1 Limitations with this encoding method  . . . . . . . 11
         3.2.3.2 Loss of precision induced by timer value
                 truncation . . . . . . . . . . . . . . . . . . . . . 12
     3.3 Header Placement . . . . . . . . . . . . . . . . . . . . . . 13
     3.4 Header Placement Using IPSec ESP Mode  . . . . . . . . . . . 13
       3.4.1 Using ESP Transport Mode . . . . . . . . . . . . . . . . 13
       3.4.2 Using ESP Tunnel Mode  . . . . . . . . . . . . . . . . . 14
     3.5 Implementation Considerations  . . . . . . . . . . . . . . . 15
Show full document text