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Subject: [ippm] I-D Action: draft-ietf-ippm-lmap-path-07.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the IP Performance Metrics Working Group of the IETF.

        Title           : A Reference Path and Measurement Points for Large-Scale Measurement of Broadband Performance
        Authors         : Marcelo Bagnulo
                          Trevor Burbridge
                          Sam Crawford
                          Phil Eardley
                          Al Morton
	Filename        : draft-ietf-ippm-lmap-path-07.txt
	Pages           : 16
	Date            : 2014-10-07

Abstract:
   This document defines a reference path for Large-scale Measurement of
   Broadband Access Performance (LMAP) and measurement points for
   commonly used performance metrics.  Other similar measurement
   projects may also be able to use the extensions described here for
   measurement point location.  The purpose is to create an efficient
   way to describe the location of the measurement point(s) used to
   conduct a particular measurement.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ippm-lmap-path/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-ippm-lmap-path-07

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From nobody Tue Oct  7 06:20:44 2014
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Subject: [ippm] I-D Action: draft-morton-ippm-2680-bis-04.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the IP Performance Metrics Working Group of the IETF.

        Title           : A One-Way Loss Metric for IPPM
        Authors         : Guy Almes
                          Sunil Kalidindi
                          Matt Zekauskas
                          Al Morton
	Filename        : draft-morton-ippm-2680-bis-04.txt
	Pages           : 20
	Date            : 2014-10-07

Abstract:
   This memo (RFC 2680 bis) defines a metric for one-way loss of packets
   across Internet paths.  It builds on notions introduced and discussed
   in the IPPM Framework document, RFC 2330; the reader is assumed to be
   familiar with that document.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-morton-ippm-2680-bis/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-morton-ippm-2680-bis-04

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http://www.ietf.org/rfcdiff?url2=draft-morton-ippm-2680-bis-04


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From nobody Tue Oct  7 06:23:37 2014
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the IP Performance Metrics Working Group of the IETF.

        Title           : A One-Way Delay Metric for IPPM
        Authors         : Guy Almes
                          Sunil Kalidindi
                          Matt Zekauskas
                          Al Morton
	Filename        : draft-morton-ippm-2679-bis-06.txt
	Pages           : 24
	Date            : 2014-10-07

Abstract:
   This memo (RFC 2679 bis) defines a metric for one-way delay of
   packets across Internet paths.  It builds on notions introduced and
   discussed in the IPPM Framework document, RFC 2330; the reader is
   assumed to be familiar with that document.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-morton-ippm-2679-bis/

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http://tools.ietf.org/html/draft-morton-ippm-2679-bis-06

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http://www.ietf.org/rfcdiff?url2=draft-morton-ippm-2679-bis-06


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From nobody Tue Oct  7 07:05:39 2014
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From: "MORTON, ALFRED C (AL)" <acm@research.att.com>
To: "ippm-chairs@tools.ietf.org" <ippm-chairs@tools.ietf.org>
Date: Tue, 7 Oct 2014 09:38:10 -0400
Thread-Topic: [ippm] I-D Action: draft-morton-ippm-2679-bis-06.txt
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Subject: Re: [ippm] I-D Action: draft-morton-ippm-2679-bis-06.txt
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Bill and Brian, IPPM,

As discussed in Toronto, I've updated both of the "bis" drafts,
according to the slides I presented there.

Also, the sections describing changes from the original specs
needed update (these are mandatory sections, as I understand it),
so that's now done.

Last, the "temporary" Reference sections are now incorporated with =20
normal XML xref syntax.

I left these named "draft-morton-" for easy diff with previous versions.
My plan is to upload draft-ietf-ippm versions soon, with unused references
removed, and a new set of ACKs for those who have helped with their=20
reviews so far.

There are still about two open issues from Joachim's review, but I will=20
pursue these with him shortly.

regards,
Al
"guest editor"

________________________________________
From: ippm [ippm-bounces@ietf.org] On Behalf Of internet-drafts@ietf.org [i=
nternet-drafts@ietf.org]
Sent: Tuesday, October 07, 2014 9:23 AM
To: i-d-announce@ietf.org
Cc: ippm@ietf.org
Subject: [ippm] I-D Action: draft-morton-ippm-2679-bis-06.txt

A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.
 This draft is a work item of the IP Performance Metrics Working Group of t=
he IETF.

        Title           : A One-Way Delay Metric for IPPM
        Authors         : Guy Almes
                          Sunil Kalidindi
                          Matt Zekauskas
                          Al Morton
        Filename        : draft-morton-ippm-2679-bis-06.txt
        Pages           : 24
        Date            : 2014-10-07

Abstract:
   This memo (RFC 2679 bis) defines a metric for one-way delay of
   packets across Internet paths.  It builds on notions introduced and
   discussed in the IPPM Framework document, RFC 2330; the reader is
   assumed to be familiar with that document.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-morton-ippm-2679-bis/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-morton-ippm-2679-bis-06

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=3Ddraft-morton-ippm-2679-bis-06


Please note that it may take a couple of minutes from the time of submissio=
n
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

_______________________________________________
ippm mailing list
ippm@ietf.org
https://www.ietf.org/mailman/listinfo/ippm


From nobody Tue Oct  7 08:28:31 2014
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Subject: [ippm] I-D Action: draft-ietf-ippm-rate-problem-07.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the IP Performance Metrics Working Group of the IETF.

        Title           : Rate Measurement Test Protocol Problem Statement
        Author          : Al Morton
	Filename        : draft-ietf-ippm-rate-problem-07.txt
	Pages           : 12
	Date            : 2014-10-07

Abstract:
   This memo presents an access rate-measurement problem statement for
   test protocols to measure IP Performance Metrics.  The rate
   measurement scenario has wide-spread attention of Internet access
   subscribers and seemingly all industry players, including regulators.
   Key test protocol aspects require the ability to control packet size
   on the tested path and enable asymmetrical packet size testing in a
   controller-responder architecture.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ippm-rate-problem/

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http://tools.ietf.org/html/draft-ietf-ippm-rate-problem-07

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From nobody Thu Oct  9 06:49:11 2014
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Subject: [ippm] Document Action: 'A Reference Path and Measurement Points for Large-Scale Measurement of Broadband Performance' to Informational RFC (draft-ietf-ippm-lmap-path-07.txt)
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The IESG has approved the following document:
- 'A Reference Path and Measurement Points for Large-Scale Measurement of
   Broadband Performance'
  (draft-ietf-ippm-lmap-path-07.txt) as Informational RFC

This document is the product of the IP Performance Metrics Working Group.

The IESG contact persons are Spencer Dawkins and Martin Stiemerling.

A URL of this Internet Draft is:
http://datatracker.ietf.org/doc/draft-ietf-ippm-lmap-path/





Technical Summary

   This document defines a reference path for Large-scale Measurement of
   Broadband Access Performance (LMAP) and measurement points for
   commonly used performance metrics.  The methods for measurement point
   location may be applicable to similar measurement projects using the
   extensions described here.

Working Group Summary

   The document has had broad review within the IPPM and LMAP working 
   groups. Many comments were received during first WGLC resulting in a 
   substantial revision and a second WGLC. There is consensus within the 
   IPPM working group (including participants from LMAP) to publish the 
   document.

Document Quality

   This document defines the reference path to be used in 
   metric definitions and provides other guidance on how to use and deploy 
   IPPM metrics in an LMAP context.

Personnel

   The document shepherd is Brian Trammell. 
   The responsible Area Director is Spencer Dawkins.


From nobody Fri Oct 10 09:49:04 2014
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Changed milestone "Submit draft updating the IPPM Framework
(2330-update) to IESG as Proposed Standard", resolved as "Done".

Deleted milestone "Submit draft on registry for active performance
metrics to IESG as Proposed Standard".

Deleted milestone "Submit draft on registry for passive performance
metrics to IESG as Proposed Standard".

URL: http://datatracker.ietf.org/wg/ippm/charter/


From nobody Fri Oct 10 15:01:58 2014
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From: "MORTON, ALFRED C (AL)" <acm@research.att.com>
To: "draft-elkins-ippm-pdm-option@tools.ietf.org" <draft-elkins-ippm-pdm-option@tools.ietf.org>
Date: Fri, 10 Oct 2014 17:57:28 -0400
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--_002_4AF73AA205019A4C8A1DDD32C034631D797C6136NJFPSRVEXG0rese_
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Hi Nalini, Mike, Robert,

I finally made time to read your draft, I see it has been revised
since I originally added intended to read it, that's progress.

My detailed comments are in the text file attached, you can search
for "ACM:" if necessary, but there are quite a few.

One main area to sort out is terminology:
the fields in the PDM, like timestamps and sequence numbers,
are information for making measurements and calculating metrics.
So the fields are the info, not metrics themselves.
The concepts of metrics, measurements and measured results
are important to sort-out, everywhere I've been recently this
is an important first step.

regards,
Al

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Message-ID: <1412982204.64428.YahooMailNeo@web125102.mail.ne1.yahoo.com>
Date: Fri, 10 Oct 2014 16:03:24 -0700
From: Nalini Elkins <nalini_elkins@insidethestack.com>
To: Nalini Elkins <nalini.elkins@insidethestack.com>, "MORTON, ALFRED C \(AL\)" <acm@research.att.com>, "draft-elkins-ippm-pdm-option@tools.ietf.org" <draft-elkins-ippm-pdm-option@tools.ietf.org>
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---559651860-1662983834-1412982204=:64428
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Al,

Thanks so much for your comments.

We will revise appropriately.


Nalini Elkins
Inside Products, Inc.
(831) 659-8360
www.insidethestack.com



________________________________
 From: Nalini Elkins <nalini_elkins@insidethestack.com>
To: "MORTON, ALFRED C (AL)" <acm@research.att.com>; "draft-elkins-ippm-pdm-option@tools.ietf.org" <draft-elkins-ippm-pdm-option@tools.ietf.org> 
Cc: "ippm@ietf.org" <ippm@ietf.org> 
Sent: Friday, October 10, 2014 4:00 PM
Subject: Re: [ippm] draft-elkins-ippm-pdm-option-01
 


Thanks so much, Al.

We will look & revise appropriately.


Nalini Elkins
Inside Products, Inc.
(831) 659-8360
www.insidethestack.com






________________________________
 From: "MORTON, ALFRED C (AL)" <acm@research.att.com>
To: "draft-elkins-ippm-pdm-option@tools.ietf.org" <draft-elkins-ippm-pdm-option@tools.ietf.org> 
Cc: "ippm@ietf.org" <ippm@ietf.org> 
Sent: Friday, October 10, 2014 2:57 PM
Subject: [ippm] draft-elkins-ippm-pdm-option-01
 

Hi Nalini, Mike, Robert,

I finally made time to read your draft, I see it has been revised
since I originally added intended to read it, that's progress.

My detailed comments are
 in the text file attached, you can search
for "ACM:" if necessary, but there are quite a few.

One main area to sort out is terminology:
the fields in the PDM, like timestamps and sequence numbers,
are information for making measurements and calculating metrics.
So the fields are the info, not metrics themselves.
The concepts of metrics, measurements and measured results
are important to sort-out, everywhere I've been recently this
is an important first step.

regards,
Al
_______________________________________________
ippm mailing list
ippm@ietf.org
https://www.ietf.org/mailman/listinfo/ippm
---559651860-1662983834-1412982204=:64428
Content-Type: text/html; charset=us-ascii

<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div><span>Al,</span></div><div style="color: rgb(0, 0, 0); font-size: 11.8181819915771px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal; background-color: transparent;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 11.8181819915771px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal; background-color: transparent;"><span>Thanks so much for your comments.</span></div><div style="color: rgb(0, 0, 0); font-size: 11.8181819915771px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal; background-color: transparent;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size:
 11.8181819915771px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal; background-color: transparent;">We will revise appropriately.</div><div><br><br></div><div>Nalini Elkins<br>Inside Products, Inc.<br>(831) 659-8360<br>www.insidethestack.com<br></div><div><br></div>  <div style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 12px;"> <div style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 16px;"> <div dir="ltr"> <hr size="1">  <font size="2" face="Arial"> <b><span style="font-weight:bold;">From:</span></b> Nalini Elkins &lt;nalini_elkins@insidethestack.com&gt;<br> <b><span style="font-weight: bold;">To:</span></b> "MORTON, ALFRED C (AL)" &lt;acm@research.att.com&gt;; "draft-elkins-ippm-pdm-option@tools.ietf.org" &lt;draft-elkins-ippm-pdm-option@tools.ietf.org&gt; <br><b><span
 style="font-weight: bold;">Cc:</span></b> "ippm@ietf.org" &lt;ippm@ietf.org&gt; <br> <b><span style="font-weight: bold;">Sent:</span></b> Friday, October 10, 2014 4:00 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [ippm] draft-elkins-ippm-pdm-option-01<br> </font> </div> <div class="y_msg_container"><br><div id="yiv0169286025"><div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"><div><span>Thanks so much, Al.</span></div><div style="color: rgb(0, 0, 0); font-size: 11.8181819915771px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal; background-color: transparent;"><span><br clear="none"></span></div><div style="color: rgb(0, 0, 0); font-size: 11.8181819915771px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida
 Grande', sans-serif; font-style: normal; background-color: transparent;">We will look &amp; revise appropriately.</div><div><br clear="none"><br clear="none"></div><div>Nalini Elkins<br clear="none">Inside Products, Inc.<br clear="none">(831) 659-8360<br clear="none">www.insidethestack.com<br clear="none"></div><div><br clear="none"></div>  <div style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 12px;"> <div style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 16px;"> <div dir="ltr"> <div class="qtdSeparateBR"><br><br></div><div class="yiv0169286025yqt2403332444" id="yiv0169286025yqtfd70843"><hr size="1">  <font size="2" face="Arial"> <b><span style="font-weight:bold;">From:</span></b> "MORTON, ALFRED C (AL)" &lt;acm@research.att.com&gt;<br clear="none"> <b><span style="font-weight:bold;">To:</span></b>
 "draft-elkins-ippm-pdm-option@tools.ietf.org" &lt;draft-elkins-ippm-pdm-option@tools.ietf.org&gt; <br clear="none"><b><span style="font-weight:bold;">Cc:</span></b> "ippm@ietf.org" &lt;ippm@ietf.org&gt; <br clear="none"> <b><span style="font-weight:bold;">Sent:</span></b> Friday, October 10, 2014 2:57 PM<br clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> [ippm] draft-elkins-ippm-pdm-option-01<br clear="none"> </font> </div></div><div class="yiv0169286025yqt2403332444" id="yiv0169286025yqtfd33670"> <div class="yiv0169286025y_msg_container"><br clear="none">Hi Nalini, Mike, Robert,<br clear="none"><br clear="none">I finally made time to read your draft, I see it has been revised<br clear="none">since I originally added intended to read it, that's progress.<br clear="none"><br clear="none">My detailed comments are
 in the text file attached, you can search<br clear="none">for "ACM:" if necessary, but there are quite a few.<br clear="none"><br clear="none">One main area to sort out is terminology:<br clear="none">the fields in the PDM, like timestamps and sequence numbers,<br clear="none">are information for making measurements and calculating metrics.<br clear="none">So the fields are the info, not metrics themselves.<br clear="none">The concepts of metrics, measurements and measured results<br clear="none">are important to sort-out, everywhere I've been recently this<br clear="none">is an important first step.<br clear="none"><br clear="none">regards,<br clear="none">Al<br clear="none">_______________________________________________<br clear="none">ippm mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:ippm@ietf.org" target="_blank" href="mailto:ippm@ietf.org">ippm@ietf.org</a><br clear="none"><a rel="nofollow" shape="rect"
 target="_blank" href="https://www.ietf.org/mailman/listinfo/ippm">https://www.ietf.org/mailman/listinfo/ippm</a><br clear="none"><br clear="none"><br clear="none"></div> </div></div><div class="yiv0169286025yqt2403332444" id="yiv0169286025yqtfd18910"> </div></div><div class="yiv0169286025yqt2403332444" id="yiv0169286025yqtfd84845">  </div></div></div></div><br><br></div> </div> </div>  </div></body></html>
---559651860-1662983834-1412982204=:64428--


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From: Bill Cerveny <ippm@wjcerveny.com>
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Subject: [ippm] IPPM at IETF91 draft agenda and other notes
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Dear IPPM WG participants,

While not official yet, it appears we may have a 3:20 - 5:20pm HST =
(0120-0320 UTC) agenda time on Tuesday, November 11, 2014, at IETF91 in =
Honolulu, Hawaii.

Some administrative notes:

1) checksum-trailer and type-p-monitor are on deck to become IPPM WG =
documents and will become working group documents as soon as we send a =
couple of our current WG documents to the IESG.

2) We will be commencing a WGLC on draft-ietf-ippm-ipsec-05 shortly.  =
Reviews of IPPM documents, and particularly ippm-ipsec, are greatly =
appreciated. =20
More reviews =3D=3D more documents to IESG queue =3D=3D new documents =
added to IPPM WG document list.

3) Based on presentation responses, the agenda currently looks a little =
like the below.  If you are an author who will be at IETF91 and would =
like to present at the IPPM WG meeting, please let me know and I=92ll =
try to add you to the agenda.

IETF91 Draft IPPM Agenda
- Agenda Bash=20
- Intro / Status / Adoption / Agenda
- Working Group Documents
=97 ippm-(2679,2680)-bis
=97 ippm-rate-problem
- Individual Drafts
=97 draft-elkins-ippm-pdm-option
=97 draft-mornuley-ippm-initial-registry

Thanks,

Bill Cerveny
IPPM co-chair=


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Subject: [ippm] WGLC: draft-ietf-ippm-ipsec-05.txt
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A WGLC is being commenced for draft-ietf-ippm-ipsec until Saturday, =
November 1, 2014.  The authors are particularly interested in comments =
regarding changes made to the document since IETF90. These changed can =
be observed at:
=
https://www.ietf.org/rfcdiff?url1=3Ddraft-ietf-ippm-ipsec-04&difftype=3D--=
html&submit=3DGo%21&url2=3Ddraft-ietf-ippm-ipsec-05

Regards,

Bill Cerveny
IPPM WG co-chair

Begin forwarded message:

> From: internet-drafts@ietf.org
> Subject: [ippm] I-D Action: draft-ietf-ippm-ipsec-05.txt
> Date: September 19, 2014 at 10:35:17 AM EDT
> To: i-d-announce@ietf.org
> Cc: ippm@ietf.org
>=20
>=20
> A New Internet-Draft is available from the on-line Internet-Drafts =
directories.
> This draft is a work item of the IP Performance Metrics Working Group =
of the IETF.
>=20
>        Title           : IKEv2-based Shared Secret Key for O/TWAMP
>        Authors         : Kostas Pentikousis
>                          Emma Zhang
>                          Yang Cui
> 	Filename        : draft-ietf-ippm-ipsec-05.txt
> 	Pages           : 12
> 	Date            : 2014-09-19
>=20
> Abstract:
>   The O/TWAMP security mechanism requires that both the client and
>   server endpoints possess a shared secret.  Since the currently-
>   standardized O/TWAMP security mechanism only supports a pre-shared
>   key mode, large scale deployment of O/TWAMP is hindered
>   significantly.  At the same time, recent trends point to wider IKEv2
>   deployment which, in turn, calls for mechanisms and methods that
>   enable tunnel end-users, as well as operators, to measure one-way =
and
>   two-way network performance in a standardized manner.  This document
>   discusses the use of keys derived from an IKEv2 SA as the shared key
>   in O/TWAMP.  If the shared key can be derived from the IKEv2 SA, O/
>   TWAMP can support certificate-based key exchange, which would allow
>   for more operational flexibility and efficiency.  The key derivation
>   presented in this document can also facilitate automatic key
>   management.
>=20
>=20
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-ippm-ipsec/
>=20
> There's also a htmlized version available at:
> http://tools.ietf.org/html/draft-ietf-ippm-ipsec-05
>=20
> A diff from the previous version is available at:
> http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-ippm-ipsec-05
>=20
>=20
> Please note that it may take a couple of minutes from the time of =
submission
> until the htmlized version and diff are available at tools.ietf.org.
>=20
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>=20
> _______________________________________________
> ippm mailing list
> ippm@ietf.org
> https://www.ietf.org/mailman/listinfo/ippm


--Apple-Mail=_2CB566C3-D6A8-47FD-B523-8813740BF6C0
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">A WGLC =
is being commenced for draft-ietf-ippm-ipsec until Saturday, November 1, =
2014. &nbsp;The authors are particularly interested in comments =
regarding changes made to the document since IETF90. These changed can =
be observed at:<div><a =
href=3D"https://www.ietf.org/rfcdiff?url1=3Ddraft-ietf-ippm-ipsec-04&amp;d=
ifftype=3D--html&amp;submit=3DGo!&amp;url2=3Ddraft-ietf-ippm-ipsec-05">htt=
ps://www.ietf.org/rfcdiff?url1=3Ddraft-ietf-ippm-ipsec-04&amp;difftype=3D-=
-html&amp;submit=3DGo%21&amp;url2=3Ddraft-ietf-ippm-ipsec-05</a></div><div=
><br></div><div>Regards,</div><div><br></div><div>Bill =
Cerveny</div><div>IPPM WG co-chair<br><div><br><div>Begin forwarded =
message:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px;"><span =
style=3D"font-family:'Helvetica'; color:rgba(0, 0, 0, 1.0);"><b>From: =
</b></span><span style=3D"font-family:'Helvetica';"><a =
href=3D"mailto:internet-drafts@ietf.org">internet-drafts@ietf.org</a><br><=
/span></div><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px;"><span =
style=3D"font-family:'Helvetica'; color:rgba(0, 0, 0, 1.0);"><b>Subject: =
</b></span><span style=3D"font-family:'Helvetica';"><b>[ippm] I-D =
Action: draft-ietf-ippm-ipsec-05.txt</b><br></span></div><div =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px;"><span style=3D"font-family:'Helvetica'; color:rgba(0, =
0, 0, 1.0);"><b>Date: </b></span><span =
style=3D"font-family:'Helvetica';">September 19, 2014 at 10:35:17 AM =
EDT<br></span></div><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px;"><span =
style=3D"font-family:'Helvetica'; color:rgba(0, 0, 0, 1.0);"><b>To: =
</b></span><span style=3D"font-family:'Helvetica';"><a =
href=3D"mailto:i-d-announce@ietf.org">i-d-announce@ietf.org</a><br></span>=
</div><div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: =
0px; margin-left: 0px;"><span style=3D"font-family:'Helvetica'; =
color:rgba(0, 0, 0, 1.0);"><b>Cc: </b></span><span =
style=3D"font-family:'Helvetica';"><a =
href=3D"mailto:ippm@ietf.org">ippm@ietf.org</a><br></span></div><br><div><=
br>A New Internet-Draft is available from the on-line Internet-Drafts =
directories.<br> This draft is a work item of the IP Performance Metrics =
Working Group of the IETF.<br><br> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Title =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: =
IKEv2-based Shared Secret Key for O/TWAMP<br> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Authors =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: Kostas Pentikousis<br> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;Emma Zhang<br> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;Yang Cui<br><span class=3D"Apple-tab-span" style=3D"white-space:pre">	=
</span>Filename &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: =
draft-ietf-ippm-ipsec-05.txt<br><span class=3D"Apple-tab-span" =
style=3D"white-space:pre">	</span>Pages =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: =
12<br><span class=3D"Apple-tab-span" style=3D"white-space:pre">	=
</span>Date =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: =
2014-09-19<br><br>Abstract:<br> &nbsp;&nbsp;The O/TWAMP security =
mechanism requires that both the client and<br> &nbsp;&nbsp;server =
endpoints possess a shared secret. &nbsp;Since the currently-<br> =
&nbsp;&nbsp;standardized O/TWAMP security mechanism only supports a =
pre-shared<br> &nbsp;&nbsp;key mode, large scale deployment of O/TWAMP =
is hindered<br> &nbsp;&nbsp;significantly. &nbsp;At the same time, =
recent trends point to wider IKEv2<br> &nbsp;&nbsp;deployment which, in =
turn, calls for mechanisms and methods that<br> &nbsp;&nbsp;enable =
tunnel end-users, as well as operators, to measure one-way and<br> =
&nbsp;&nbsp;two-way network performance in a standardized manner. =
&nbsp;This document<br> &nbsp;&nbsp;discusses the use of keys derived =
from an IKEv2 SA as the shared key<br> &nbsp;&nbsp;in O/TWAMP. &nbsp;If =
the shared key can be derived from the IKEv2 SA, O/<br> =
&nbsp;&nbsp;TWAMP can support certificate-based key exchange, which =
would allow<br> &nbsp;&nbsp;for more operational flexibility and =
efficiency. &nbsp;The key derivation<br> &nbsp;&nbsp;presented in this =
document can also facilitate automatic key<br> =
&nbsp;&nbsp;management.<br><br><br>The IETF datatracker status page for =
this draft is:<br><a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-ippm-ipsec/">https://d=
atatracker.ietf.org/doc/draft-ietf-ippm-ipsec/</a><br><br>There's also a =
htmlized version available =
at:<br>http://tools.ietf.org/html/draft-ietf-ippm-ipsec-05<br><br>A diff =
from the previous version is available =
at:<br>http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-ippm-ipsec-05<br><br>=
<br>Please note that it may take a couple of minutes from the time of =
submission<br>until the htmlized version and diff are available at =
tools.ietf.org.<br><br>Internet-Drafts are also available by anonymous =
FTP =
at:<br>ftp://ftp.ietf.org/internet-drafts/<br><br>________________________=
_______________________<br>ippm mailing =
list<br>ippm@ietf.org<br>https://www.ietf.org/mailman/listinfo/ippm<br></d=
iv></blockquote></div><br></div></body></html>=

--Apple-Mail=_2CB566C3-D6A8-47FD-B523-8813740BF6C0--


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[Resending to include ipsec e-mail list]

A WGLC is being commenced for draft-ietf-ippm-ipsec until Saturday, =
November 1, 2014.  The authors are particularly interested in comments =
regarding changes made to the document since IETF90. These changed can =
be observed at:
=
https://www.ietf.org/rfcdiff?url1=3Ddraft-ietf-ippm-ipsec-04&difftype=3D--=
html&submit=3DGo%21&url2=3Ddraft-ietf-ippm-ipsec-05

Regards,

Bill Cerveny
IPPM WG co-chair

Begin forwarded message:

> From: internet-drafts@ietf.org
> Subject: [ippm] I-D Action: draft-ietf-ippm-ipsec-05.txt
> Date: September 19, 2014 at 10:35:17 AM EDT
> To: i-d-announce@ietf.org
> Cc: ippm@ietf.org
>=20
>=20
> A New Internet-Draft is available from the on-line Internet-Drafts =
directories.
> This draft is a work item of the IP Performance Metrics Working Group =
of the IETF.
>=20
>        Title           : IKEv2-based Shared Secret Key for O/TWAMP
>        Authors         : Kostas Pentikousis
>                          Emma Zhang
>                          Yang Cui
> 	Filename        : draft-ietf-ippm-ipsec-05.txt
> 	Pages           : 12
> 	Date            : 2014-09-19
>=20
> Abstract:
>   The O/TWAMP security mechanism requires that both the client and
>   server endpoints possess a shared secret.  Since the currently-
>   standardized O/TWAMP security mechanism only supports a pre-shared
>   key mode, large scale deployment of O/TWAMP is hindered
>   significantly.  At the same time, recent trends point to wider IKEv2
>   deployment which, in turn, calls for mechanisms and methods that
>   enable tunnel end-users, as well as operators, to measure one-way =
and
>   two-way network performance in a standardized manner.  This document
>   discusses the use of keys derived from an IKEv2 SA as the shared key
>   in O/TWAMP.  If the shared key can be derived from the IKEv2 SA, O/
>   TWAMP can support certificate-based key exchange, which would allow
>   for more operational flexibility and efficiency.  The key derivation
>   presented in this document can also facilitate automatic key
>   management.
>=20
>=20
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-ippm-ipsec/
>=20
> There's also a htmlized version available at:
> http://tools.ietf.org/html/draft-ietf-ippm-ipsec-05
>=20
> A diff from the previous version is available at:
> http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-ippm-ipsec-05
>=20
>=20
> Please note that it may take a couple of minutes from the time of =
submission
> until the htmlized version and diff are available at tools.ietf.org.
>=20
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>=20
> _______________________________________________
> ippm mailing list
> ippm@ietf.org
> https://www.ietf.org/mailman/listinfo/ippm


--Apple-Mail=_4AF4DC2E-7C25-4A7C-81CF-E75B407B6E48
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dus-ascii"><meta http-equiv=3D"Content-Type" content=3D"text/html=
 charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;">[Resending to include ipsec e-mail =
list]<div><br></div><div>A WGLC is being commenced for =
draft-ietf-ippm-ipsec until Saturday, November 1, 2014. &nbsp;The =
authors are particularly interested in comments regarding changes made =
to the document since IETF90. These changed can be observed at:<div><a =
href=3D"https://www.ietf.org/rfcdiff?url1=3Ddraft-ietf-ippm-ipsec-04&amp;d=
ifftype=3D--html&amp;submit=3DGo!&amp;url2=3Ddraft-ietf-ippm-ipsec-05">htt=
ps://www.ietf.org/rfcdiff?url1=3Ddraft-ietf-ippm-ipsec-04&amp;difftype=3D-=
-html&amp;submit=3DGo%21&amp;url2=3Ddraft-ietf-ippm-ipsec-05</a></div><div=
><br></div><div>Regards,</div><div><br></div><div>Bill =
Cerveny</div><div>IPPM WG co-chair<br><div><br><div>Begin forwarded =
message:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px;"><span =
style=3D"font-family:'Helvetica'; color:rgba(0, 0, 0, 1.0);"><b>From: =
</b></span><span style=3D"font-family:'Helvetica';"><a =
href=3D"mailto:internet-drafts@ietf.org">internet-drafts@ietf.org</a><br><=
/span></div><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px;"><span =
style=3D"font-family:'Helvetica'; color:rgba(0, 0, 0, 1.0);"><b>Subject: =
</b></span><span style=3D"font-family:'Helvetica';"><b>[ippm] I-D =
Action: draft-ietf-ippm-ipsec-05.txt</b><br></span></div><div =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px;"><span style=3D"font-family:'Helvetica'; color:rgba(0, =
0, 0, 1.0);"><b>Date: </b></span><span =
style=3D"font-family:'Helvetica';">September 19, 2014 at 10:35:17 AM =
EDT<br></span></div><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px;"><span =
style=3D"font-family:'Helvetica'; color:rgba(0, 0, 0, 1.0);"><b>To: =
</b></span><span style=3D"font-family:'Helvetica';"><a =
href=3D"mailto:i-d-announce@ietf.org">i-d-announce@ietf.org</a><br></span>=
</div><div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: =
0px; margin-left: 0px;"><span style=3D"font-family:'Helvetica'; =
color:rgba(0, 0, 0, 1.0);"><b>Cc: </b></span><span =
style=3D"font-family:'Helvetica';"><a =
href=3D"mailto:ippm@ietf.org">ippm@ietf.org</a><br></span></div><br><div><=
br>A New Internet-Draft is available from the on-line Internet-Drafts =
directories.<br> This draft is a work item of the IP Performance Metrics =
Working Group of the IETF.<br><br> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Title =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: =
IKEv2-based Shared Secret Key for O/TWAMP<br> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Authors =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: Kostas Pentikousis<br> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;Emma Zhang<br> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;Yang Cui<br><span class=3D"Apple-tab-span" style=3D"white-space:pre">	=
</span>Filename &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: =
draft-ietf-ippm-ipsec-05.txt<br><span class=3D"Apple-tab-span" =
style=3D"white-space:pre">	</span>Pages =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: =
12<br><span class=3D"Apple-tab-span" style=3D"white-space:pre">	=
</span>Date =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: =
2014-09-19<br><br>Abstract:<br> &nbsp;&nbsp;The O/TWAMP security =
mechanism requires that both the client and<br> &nbsp;&nbsp;server =
endpoints possess a shared secret. &nbsp;Since the currently-<br> =
&nbsp;&nbsp;standardized O/TWAMP security mechanism only supports a =
pre-shared<br> &nbsp;&nbsp;key mode, large scale deployment of O/TWAMP =
is hindered<br> &nbsp;&nbsp;significantly. &nbsp;At the same time, =
recent trends point to wider IKEv2<br> &nbsp;&nbsp;deployment which, in =
turn, calls for mechanisms and methods that<br> &nbsp;&nbsp;enable =
tunnel end-users, as well as operators, to measure one-way and<br> =
&nbsp;&nbsp;two-way network performance in a standardized manner. =
&nbsp;This document<br> &nbsp;&nbsp;discusses the use of keys derived =
from an IKEv2 SA as the shared key<br> &nbsp;&nbsp;in O/TWAMP. &nbsp;If =
the shared key can be derived from the IKEv2 SA, O/<br> =
&nbsp;&nbsp;TWAMP can support certificate-based key exchange, which =
would allow<br> &nbsp;&nbsp;for more operational flexibility and =
efficiency. &nbsp;The key derivation<br> &nbsp;&nbsp;presented in this =
document can also facilitate automatic key<br> =
&nbsp;&nbsp;management.<br><br><br>The IETF datatracker status page for =
this draft is:<br><a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-ippm-ipsec/">https://d=
atatracker.ietf.org/doc/draft-ietf-ippm-ipsec/</a><br><br>There's also a =
htmlized version available at:<br><a =
href=3D"http://tools.ietf.org/html/draft-ietf-ippm-ipsec-05">http://tools.=
ietf.org/html/draft-ietf-ippm-ipsec-05</a><br><br>A diff from the =
previous version is available =
at:<br>http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-ippm-ipsec-05<br><br>=
<br>Please note that it may take a couple of minutes from the time of =
submission<br>until the htmlized version and diff are available at =
tools.ietf.org.<br><br>Internet-Drafts are also available by anonymous =
FTP =
at:<br>ftp://ftp.ietf.org/internet-drafts/<br><br>________________________=
_______________________<br>ippm mailing =
list<br>ippm@ietf.org<br>https://www.ietf.org/mailman/listinfo/ippm<br></d=
iv></blockquote></div><br></div></div></body></html>=

--Apple-Mail=_4AF4DC2E-7C25-4A7C-81CF-E75B407B6E48--


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From: Bill Cerveny <ippm@wjcerveny.com>
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Subject: [ippm] WGLC on draft-ietf-ippm-rate-problem-07.txt
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draft-ietf-ippm-rate-problem has been updated with changes requested by =
IPPM participants. As such, I am kicking off a WGLC for =
draft-ietf-ippm-rate-problem-07 until November 5, 2014. Please provide =
comments before the WGLC ends.

Thanks,

Bill Cerveny
IPPM WG co-chair

Begin forwarded message:

> From: internet-drafts@ietf.org
> Subject: [ippm] I-D Action: draft-ietf-ippm-rate-problem-07.txt
> Date: October 7, 2014 at 11:28:27 AM EDT
> To: i-d-announce@ietf.org
> Cc: ippm@ietf.org
>=20
>=20
> A New Internet-Draft is available from the on-line Internet-Drafts =
directories.
> This draft is a work item of the IP Performance Metrics Working Group =
of the IETF.
>=20
>        Title           : Rate Measurement Test Protocol Problem =
Statement
>        Author          : Al Morton
> 	Filename        : draft-ietf-ippm-rate-problem-07.txt
> 	Pages           : 12
> 	Date            : 2014-10-07
>=20
> Abstract:
>   This memo presents an access rate-measurement problem statement for
>   test protocols to measure IP Performance Metrics.  The rate
>   measurement scenario has wide-spread attention of Internet access
>   subscribers and seemingly all industry players, including =
regulators.
>   Key test protocol aspects require the ability to control packet size
>   on the tested path and enable asymmetrical packet size testing in a
>   controller-responder architecture.
>=20
>=20
>=20
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-ippm-rate-problem/
>=20
> There's also a htmlized version available at:
> http://tools.ietf.org/html/draft-ietf-ippm-rate-problem-07
>=20
> A diff from the previous version is available at:
> http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-ippm-rate-problem-07
>=20
>=20
> Please note that it may take a couple of minutes from the time of =
submission
> until the htmlized version and diff are available at tools.ietf.org.
>=20
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>=20
> _______________________________________________
> ippm mailing list
> ippm@ietf.org
> https://www.ietf.org/mailman/listinfo/ippm


--Apple-Mail=_82BB398E-9368-4A56-8A84-2060CB01B9DD
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;">draft-ietf-ippm-rate-problem has been updated with =
changes requested by IPPM participants. As such, I am kicking off a WGLC =
for&nbsp;draft-ietf-ippm-rate-problem-07 until November 5, 2014. Please =
provide comments before the WGLC =
ends.<div><br></div><div>Thanks,</div><div><br></div><div>Bill =
Cerveny</div><div>IPPM WG co-chair<br><div><br><div>Begin forwarded =
message:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px;"><span =
style=3D"font-family:'Helvetica'; color:rgba(0, 0, 0, 1.0);"><b>From: =
</b></span><span style=3D"font-family:'Helvetica';"><a =
href=3D"mailto:internet-drafts@ietf.org">internet-drafts@ietf.org</a><br><=
/span></div><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px;"><span =
style=3D"font-family:'Helvetica'; color:rgba(0, 0, 0, 1.0);"><b>Subject: =
</b></span><span style=3D"font-family:'Helvetica';"><b>[ippm] I-D =
Action: draft-ietf-ippm-rate-problem-07.txt</b><br></span></div><div =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px;"><span style=3D"font-family:'Helvetica'; color:rgba(0, =
0, 0, 1.0);"><b>Date: </b></span><span =
style=3D"font-family:'Helvetica';">October 7, 2014 at 11:28:27 AM =
EDT<br></span></div><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px;"><span =
style=3D"font-family:'Helvetica'; color:rgba(0, 0, 0, 1.0);"><b>To: =
</b></span><span style=3D"font-family:'Helvetica';"><a =
href=3D"mailto:i-d-announce@ietf.org">i-d-announce@ietf.org</a><br></span>=
</div><div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: =
0px; margin-left: 0px;"><span style=3D"font-family:'Helvetica'; =
color:rgba(0, 0, 0, 1.0);"><b>Cc: </b></span><span =
style=3D"font-family:'Helvetica';"><a =
href=3D"mailto:ippm@ietf.org">ippm@ietf.org</a><br></span></div><br><div><=
br>A New Internet-Draft is available from the on-line Internet-Drafts =
directories.<br> This draft is a work item of the IP Performance Metrics =
Working Group of the IETF.<br><br> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Title =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: Rate =
Measurement Test Protocol Problem Statement<br> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Author =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: Al =
Morton<br><span class=3D"Apple-tab-span" style=3D"white-space:pre">	=
</span>Filename &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: =
draft-ietf-ippm-rate-problem-07.txt<br><span class=3D"Apple-tab-span" =
style=3D"white-space:pre">	</span>Pages =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: =
12<br><span class=3D"Apple-tab-span" style=3D"white-space:pre">	=
</span>Date =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: =
2014-10-07<br><br>Abstract:<br> &nbsp;&nbsp;This memo presents an access =
rate-measurement problem statement for<br> &nbsp;&nbsp;test protocols to =
measure IP Performance Metrics. &nbsp;The rate<br> =
&nbsp;&nbsp;measurement scenario has wide-spread attention of Internet =
access<br> &nbsp;&nbsp;subscribers and seemingly all industry players, =
including regulators.<br> &nbsp;&nbsp;Key test protocol aspects require =
the ability to control packet size<br> &nbsp;&nbsp;on the tested path =
and enable asymmetrical packet size testing in a<br> =
&nbsp;&nbsp;controller-responder architecture.<br><br><br><br>The IETF =
datatracker status page for this draft is:<br><a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-ippm-rate-problem/">ht=
tps://datatracker.ietf.org/doc/draft-ietf-ippm-rate-problem/</a><br><br>Th=
ere's also a htmlized version available =
at:<br>http://tools.ietf.org/html/draft-ietf-ippm-rate-problem-07<br><br>A=
 diff from the previous version is available =
at:<br>http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-ippm-rate-problem-07<=
br><br><br>Please note that it may take a couple of minutes from the =
time of submission<br>until the htmlized version and diff are available =
at tools.ietf.org.<br><br>Internet-Drafts are also available by =
anonymous FTP =
at:<br>ftp://ftp.ietf.org/internet-drafts/<br><br>________________________=
_______________________<br>ippm mailing =
list<br>ippm@ietf.org<br>https://www.ietf.org/mailman/listinfo/ippm<br></d=
iv></blockquote></div><br></div></body></html>=

--Apple-Mail=_82BB398E-9368-4A56-8A84-2060CB01B9DD--


From nobody Wed Oct 22 09:19:35 2014
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Subject: [ippm] Milestones changed for ippm WG
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Changed milestone "Submit draft on reference path for measurement
location to IESG as Informational", resolved as "Done".

Changed milestone "Submit draft on access rate measurement protocol
problem statement to IESG as Informational", set due date to November
2014 from April 2014.

Changed milestone "Submit draft on OWAMP / TWAMP Security to IESG as
Proposed Standard", set due date to November 2014 from April 2014.

Changed milestone "Submit draft on model-based TCP bulk transfer
capacity metrics to IESG as Experimental", set due date to November
2014 from July 2014.

Changed milestone "Submit draft on core registry for performance
metrics to IESG as Proposed Standard", set due date to March 2015 from
August 2014.

URL: http://datatracker.ietf.org/wg/ippm/charter/


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--001a11365dce51306805060b9c01
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Dear Authors, et. al,
please find my WG LC comments below:

   - Abstract.

   Key test protocol aspects require the ability to control packet size
   on the tested path and enable asymmetrical packet size testing in a
   controller-responder architecture.

I believe that in our meeting in Toronto the WG agreed that support of
asymmetrical test packet rate is required and support of asymmetrical
packet size is recommended. Thus I propose following text update.

Key test protocol aspects require the ability to control test packet
characteristics on the tested path and enable asymmetrical test flow
rates in controller-responder architecture.


   - Requirements Language

Because this document is on Informational track, normative language of RFC
2119 not usually used. Use of defined RFC 2119 language may be explained by
the following:

   Although this document is not a protocol specification, the use of
this language clarifies the instructions to protocol designers
   producing solutions that satisfy the requirements set out in this document.


   - Section 2. Purpose and Scope

As the WG agrees that the problem is asymmetric rate I propose to add to
the list on p.3 'intra-pair spacing' and 'inter-pair interval' that both
are referenced in Section 4.

   - Section 3. Active Rate Measurement

P.5, second paragraph s/a it may be possible/it may be possible/
Not clear the intended role of asterics, double and single, in the text.
Are these quotations?

   - Section 5. Test Protocol Control & Generation Requirements

As the WG agreed that asymmetric test packet flow may be created by
variating not just packet size but intra-pair spacing and/or inter-pair
interval, requirement #4 is not generic but presents only one possible
solution. I propose change requirement #4 to:
4. Asymmetric packet flows in a two-way measurement architecture

I didn't find the reference to the definition or the definition of
'pseudo-one-way test' in the document and thus I propose the requirement to
avoid the term.

The next to last paragraph suggests:

 Implementations may support control and generation for only symmetric
packet sizes when none of the above conditions hold.

That contradicts earlier explanation that mentions variation of intra-pair
spacing and inter-pair interval as possible method to generate asymmetric
flow of test packets. Thus a protocol that can control spacing and/or
intervals would be suitable to any combination of 1, 3, 4 and 6.

Regards,
Greg




On Wed, Oct 22, 2014 at 9:05 AM, Bill Cerveny <ippm@wjcerveny.com> wrote:

> draft-ietf-ippm-rate-problem has been updated with changes requested by
> IPPM participants. As such, I am kicking off a WGLC
> for draft-ietf-ippm-rate-problem-07 until November 5, 2014. Please provide
> comments before the WGLC ends.
>
> Thanks,
>
> Bill Cerveny
> IPPM WG co-chair
>
> Begin forwarded message:
>
> *From: *internet-drafts@ietf.org
> *Subject: **[ippm] I-D Action: draft-ietf-ippm-rate-problem-07.txt*
> *Date: *October 7, 2014 at 11:28:27 AM EDT
> *To: *i-d-announce@ietf.org
> *Cc: *ippm@ietf.org
>
>
> A New Internet-Draft is available from the on-line Internet-Drafts
> directories.
> This draft is a work item of the IP Performance Metrics Working Group of
> the IETF.
>
>        Title           : Rate Measurement Test Protocol Problem Statement
>        Author          : Al Morton
> Filename        : draft-ietf-ippm-rate-problem-07.txt
> Pages           : 12
> Date            : 2014-10-07
>
> Abstract:
>   This memo presents an access rate-measurement problem statement for
>   test protocols to measure IP Performance Metrics.  The rate
>   measurement scenario has wide-spread attention of Internet access
>   subscribers and seemingly all industry players, including regulators.
>   Key test protocol aspects require the ability to control packet size
>   on the tested path and enable asymmetrical packet size testing in a
>   controller-responder architecture.
>
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-ippm-rate-problem/
>
> There's also a htmlized version available at:
> http://tools.ietf.org/html/draft-ietf-ippm-rate-problem-07
>
> A diff from the previous version is available at:
> http://www.ietf.org/rfcdiff?url2=draft-ietf-ippm-rate-problem-07
>
>
> Please note that it may take a couple of minutes from the time of
> submission
> until the htmlized version and diff are available at tools.ietf.org.
>
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>
> _______________________________________________
> ippm mailing list
> ippm@ietf.org
> https://www.ietf.org/mailman/listinfo/ippm
>
>
>
> _______________________________________________
> ippm mailing list
> ippm@ietf.org
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>
>

--001a11365dce51306805060b9c01
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div><div><div><div><div><div>Dear Authors, et. al,<br></d=
iv>please find my WG LC comments below:<br><ul><li>Abstract.</li></ul></div=
><pre style=3D"margin-left:40px">   Key test protocol aspects require the a=
bility to control packet size
   on the tested path and enable asymmetrical packet size testing in a
   controller-responder architecture.<br></pre><pre style=3D"margin-left:40=
px"><font face=3D"arial,helvetica,sans-serif">I believe that in our meeting=
 in Toronto the WG agreed that support of asymmetrical test packet rate is =
required and support of asymmetrical packet size is recommended. Thus I pro=
pose following text update.<br></font></pre><pre style=3D"margin-left:40px"=
><font face=3D"arial,helvetica,sans-serif">Key test protocol aspects requir=
e the ability to control test packet characteristics on the tested path and=
 enable asymmetrical test flow rates in controller-responder architecture.<=
br></font></pre><ul><li>Requirements Language</li></ul></div><div style=3D"=
margin-left:40px">Because this document is on Informational track, normativ=
e language of RFC 2119 not usually used. Use of defined RFC 2119 language m=
ay be explained by the following:<br></div><br><pre style=3D"margin-left:40=
px"><span style=3D"font-family:arial,helvetica,sans-serif">   Although this=
 document is not a protocol specification, the use of this language clarifi=
es the instructions to protocol designers
   producing solutions that satisfy the requirements set out in this docume=
nt.</span>
</pre></div><div><div><ul><li>Section 2. Purpose and Scope</li></ul></div><=
div style=3D"margin-left:40px">As the WG agrees that the problem is asymmet=
ric rate I propose to add to the list on p.3 &#39;intra-pair spacing&#39; a=
nd &#39;inter-pair interval&#39; that both are referenced in Section 4.<br>=
</div><ul><li>Section 3. Active Rate Measurement</li></ul></div><div style=
=3D"margin-left:40px">P.5, second paragraph s/a it may be possible/it may b=
e possible/<br></div><div style=3D"margin-left:40px">Not clear the intended=
 role of asterics, double and single, in the text. Are these quotations? <b=
r></div><ul><li>Section 5. Test Protocol Control &amp; Generation Requireme=
nts</li></ul></div><div style=3D"margin-left:40px">As the WG agreed that as=
ymmetric test packet flow may be created by variating not just packet size =
but intra-pair spacing and/or inter-pair interval, requirement #4 is not ge=
neric but presents only one possible solution. I propose change requirement=
 #4 to:<br></div><div style=3D"margin-left:40px">4. Asymmetric packet flows=
<span style=3D"font-family:arial,helvetica,sans-serif"> in a
       two-way measurement architecture<br><br></span></div><div style=3D"m=
argin-left:40px"><span style=3D"font-family:arial,helvetica,sans-serif">I d=
idn&#39;t find the reference to the definition or the definition of &#39;ps=
eudo-one-way test&#39; in the document and thus I propose the requirement t=
o avoid the term.<br></span></div><br><div style=3D"margin-left:40px">The n=
ext to last paragraph suggests:<br><pre class=3D""><span style=3D"font-fami=
ly:arial,helvetica,sans-serif"> Implementations may support control and gen=
eration for only symmetric packet sizes when none of the above conditions h=
old.</span>
</pre></div><div style=3D"margin-left:40px">That contradicts earlier explan=
ation that mentions variation of intra-pair spacing and inter-pair interval=
 as possible method to generate asymmetric flow of test packets. Thus a pro=
tocol that can control spacing and/or intervals would be suitable to any co=
mbination of 1, 3, 4 and 6.<br><br></div>Regards,<br></div>Greg<br><div><di=
v><div><div><span style=3D"font-family:arial,helvetica,sans-serif"></span><=
br><div><div><div><div><div><div><pre style=3D"margin-left:40px"> <br></pre=
><div><br></div></div></div></div></div></div></div></div></div></div></div=
></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Wed, Oc=
t 22, 2014 at 9:05 AM, Bill Cerveny <span dir=3D"ltr">&lt;<a href=3D"mailto=
:ippm@wjcerveny.com" target=3D"_blank">ippm@wjcerveny.com</a>&gt;</span> wr=
ote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border=
-left:1px #ccc solid;padding-left:1ex"><div style=3D"word-wrap:break-word">=
draft-ietf-ippm-rate-problem has been updated with changes requested by IPP=
M participants. As such, I am kicking off a WGLC for=C2=A0draft-ietf-ippm-r=
ate-problem-07 until November 5, 2014. Please provide comments before the W=
GLC ends.<div><br></div><div>Thanks,</div><div><br></div><div>Bill Cerveny<=
/div><div>IPPM WG co-chair<br><div><br><div>Begin forwarded message:</div><=
br><blockquote type=3D"cite"><div style=3D"margin-top:0px;margin-right:0px;=
margin-bottom:0px;margin-left:0px"><span style=3D"font-family:&#39;Helvetic=
a&#39;;color:rgba(0,0,0,1.0)"><b>From: </b></span><span style=3D"font-famil=
y:&#39;Helvetica&#39;"><a href=3D"mailto:internet-drafts@ietf.org" target=
=3D"_blank">internet-drafts@ietf.org</a><br></span></div><div style=3D"marg=
in-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px"><span style=
=3D"font-family:&#39;Helvetica&#39;;color:rgba(0,0,0,1.0)"><b>Subject: </b>=
</span><span style=3D"font-family:&#39;Helvetica&#39;"><b>[ippm] I-D Action=
: draft-ietf-ippm-rate-problem-07.txt</b><br></span></div><div style=3D"mar=
gin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px"><span style=
=3D"font-family:&#39;Helvetica&#39;;color:rgba(0,0,0,1.0)"><b>Date: </b></s=
pan><span style=3D"font-family:&#39;Helvetica&#39;">October 7, 2014 at 11:2=
8:27 AM EDT<br></span></div><div style=3D"margin-top:0px;margin-right:0px;m=
argin-bottom:0px;margin-left:0px"><span style=3D"font-family:&#39;Helvetica=
&#39;;color:rgba(0,0,0,1.0)"><b>To: </b></span><span style=3D"font-family:&=
#39;Helvetica&#39;"><a href=3D"mailto:i-d-announce@ietf.org" target=3D"_bla=
nk">i-d-announce@ietf.org</a><br></span></div><div style=3D"margin-top:0px;=
margin-right:0px;margin-bottom:0px;margin-left:0px"><span style=3D"font-fam=
ily:&#39;Helvetica&#39;;color:rgba(0,0,0,1.0)"><b>Cc: </b></span><span styl=
e=3D"font-family:&#39;Helvetica&#39;"><a href=3D"mailto:ippm@ietf.org" targ=
et=3D"_blank">ippm@ietf.org</a><br></span></div><br><div><br>A New Internet=
-Draft is available from the on-line Internet-Drafts directories.<br> This =
draft is a work item of the IP Performance Metrics Working Group of the IET=
F.<br><br> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Title =C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0: Rate Measurement Test Protoc=
ol Problem Statement<br> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Author =
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0: Al Morton<br><span =
style=3D"white-space:pre-wrap">	</span>Filename =C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0: draft-ietf-ippm-rate-problem-07.txt<br><span style=3D"whit=
e-space:pre-wrap">	</span>Pages =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0: 12<br><span style=3D"white-space:pre-wrap">	</span>Date=
 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0: 2014-1=
0-07<br><br>Abstract:<br> =C2=A0=C2=A0This memo presents an access rate-mea=
surement problem statement for<br> =C2=A0=C2=A0test protocols to measure IP=
 Performance Metrics.=C2=A0 The rate<br> =C2=A0=C2=A0measurement scenario h=
as wide-spread attention of Internet access<br> =C2=A0=C2=A0subscribers and=
 seemingly all industry players, including regulators.<br> =C2=A0=C2=A0Key =
test protocol aspects require the ability to control packet size<br> =C2=A0=
=C2=A0on the tested path and enable asymmetrical packet size testing in a<b=
r> =C2=A0=C2=A0controller-responder architecture.<br><br><br><br>The IETF d=
atatracker status page for this draft is:<br><a href=3D"https://datatracker=
.ietf.org/doc/draft-ietf-ippm-rate-problem/" target=3D"_blank">https://data=
tracker.ietf.org/doc/draft-ietf-ippm-rate-problem/</a><br><br>There&#39;s a=
lso a htmlized version available at:<br><a href=3D"http://tools.ietf.org/ht=
ml/draft-ietf-ippm-rate-problem-07" target=3D"_blank">http://tools.ietf.org=
/html/draft-ietf-ippm-rate-problem-07</a><br><br>A diff from the previous v=
ersion is available at:<br><a href=3D"http://www.ietf.org/rfcdiff?url2=3Ddr=
aft-ietf-ippm-rate-problem-07" target=3D"_blank">http://www.ietf.org/rfcdif=
f?url2=3Ddraft-ietf-ippm-rate-problem-07</a><br><br><br>Please note that it=
 may take a couple of minutes from the time of submission<br>until the html=
ized version and diff are available at <a href=3D"http://tools.ietf.org" ta=
rget=3D"_blank">tools.ietf.org</a>.<br><br>Internet-Drafts are also availab=
le by anonymous FTP at:<br><a href=3D"ftp://ftp.ietf.org/internet-drafts/" =
target=3D"_blank">ftp://ftp.ietf.org/internet-drafts/</a><br><br>__________=
_____________________________________<br>ippm mailing list<br><a href=3D"ma=
ilto:ippm@ietf.org" target=3D"_blank">ippm@ietf.org</a><br><a href=3D"https=
://www.ietf.org/mailman/listinfo/ippm" target=3D"_blank">https://www.ietf.o=
rg/mailman/listinfo/ippm</a><br></div></blockquote></div><br></div></div><b=
r>_______________________________________________<br>
ippm mailing list<br>
<a href=3D"mailto:ippm@ietf.org">ippm@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/ippm" target=3D"_blank">ht=
tps://www.ietf.org/mailman/listinfo/ippm</a><br>
<br></blockquote></div><br></div>

--001a11365dce51306805060b9c01--


From nobody Thu Oct 23 12:23:38 2014
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Subject: [ippm] I-D Action: draft-ietf-ippm-2679-bis-00.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the IP Performance Metrics Working Group of the IETF.

        Title           : A One-Way Delay Metric for IPPM
        Authors         : Guy Almes
                          Sunil Kalidindi
                          Matt Zekauskas
                          Al Morton
	Filename        : draft-ietf-ippm-2679-bis-00.txt
	Pages           : 24
	Date            : 2014-10-23

Abstract:
   This memo (RFC 2679 bis) defines a metric for one-way delay of
   packets across Internet paths.  It builds on notions introduced and
   discussed in the IPPM Framework document, RFC 2330; the reader is
   assumed to be familiar with that document.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ippm-2679-bis/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-ippm-2679-bis-00


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


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Subject: [ippm] I-D Action: draft-ietf-ippm-2680-bis-00.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the IP Performance Metrics Working Group of the IETF.

        Title           : A One-Way Loss Metric for IPPM
        Authors         : Guy Almes
                          Sunil Kalidindi
                          Matt Zekauskas
                          Al Morton
	Filename        : draft-ietf-ippm-2680-bis-00.txt
	Pages           : 19
	Date            : 2014-10-23

Abstract:
   This memo (RFC 2680 bis) defines a metric for one-way loss of packets
   across Internet paths.  It builds on notions introduced and discussed
   in the IPPM Framework document, RFC 2330; the reader is assumed to be
   familiar with that document.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ippm-2680-bis/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-ippm-2680-bis-00


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


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URL: http://datatracker.ietf.org/wg/ippm/charter/


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From: "MORTON, ALFRED C (AL)" <acm@research.att.com>
To: Bill Cerveny <ippm@wjcerveny.com>, "ippm@ietf.org" <ippm@ietf.org>
Date: Sat, 25 Oct 2014 17:00:00 -0400
Thread-Topic: [ippm] WGLC: draft-ietf-ippm-ipsec-05.txt
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I see a small issue in this draft.
 =20
Although the proposal is applicable to both OWAMP and TWAMP,
we currently have no registry available to extend OWAMP and use
this new mode -- IOW, there is no IANA Registry for OWAMP Mode
bit positions.

In the near term, the draft could be positioned to extend TWAMP
and mention clear applicability to OWAMP (but no current way to
register the extension).

In the long term, IPPM could establish the Modes and Commands=20
registries for OWAMP and (in the process) decide if we will try to simplify
life by coordinating bit positions for both -WAMPs (which would mean
going back and specifying the OWAMP equivalent of all the applicable
existing TWAMP Modes.

I'm fairly sure I mentioned this issue to Kostas in an exchange last month,
so it's not a complete surprise, and I'm sure we can work out the changes
to accomodate the missing OWAMP registry.

regards,
Al

________________________________________
From: ippm [ippm-bounces@ietf.org] On Behalf Of Bill Cerveny [ippm@wjcerven=
y.com]
Sent: Wednesday, October 15, 2014 2:39 PM
To: ippm@ietf.org
Subject: [ippm] WGLC: draft-ietf-ippm-ipsec-05.txt

A WGLC is being commenced for draft-ietf-ippm-ipsec until Saturday, Novembe=
r 1, 2014.  The authors are particularly interested in comments regarding c=
hanges made to the document since IETF90. These changed can be observed at:
https://www.ietf.org/rfcdiff?url1=3Ddraft-ietf-ippm-ipsec-04&difftype=3D--h=
tml&submit=3DGo%21&url2=3Ddraft-ietf-ippm-ipsec-05<https://www.ietf.org/rfc=
diff?url1=3Ddraft-ietf-ippm-ipsec-04&difftype=3D--html&submit=3DGo!&url2=3D=
draft-ietf-ippm-ipsec-05>

Regards,

Bill Cerveny
IPPM WG co-chair

Begin forwarded message:

From: internet-drafts@ietf.org<mailto:internet-drafts@ietf.org>
Subject: [ippm] I-D Action: draft-ietf-ippm-ipsec-05.txt
Date: September 19, 2014 at 10:35:17 AM EDT
To: i-d-announce@ietf.org<mailto:i-d-announce@ietf.org>
Cc: ippm@ietf.org<mailto:ippm@ietf.org>


A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.
This draft is a work item of the IP Performance Metrics Working Group of th=
e IETF.

       Title           : IKEv2-based Shared Secret Key for O/TWAMP
       Authors         : Kostas Pentikousis
                         Emma Zhang
                         Yang Cui
Filename        : draft-ietf-ippm-ipsec-05.txt
Pages           : 12
Date            : 2014-09-19

Abstract:
  The O/TWAMP security mechanism requires that both the client and
  server endpoints possess a shared secret.  Since the currently-
  standardized O/TWAMP security mechanism only supports a pre-shared
  key mode, large scale deployment of O/TWAMP is hindered
  significantly.  At the same time, recent trends point to wider IKEv2
  deployment which, in turn, calls for mechanisms and methods that
  enable tunnel end-users, as well as operators, to measure one-way and
  two-way network performance in a standardized manner.  This document
  discusses the use of keys derived from an IKEv2 SA as the shared key
  in O/TWAMP.  If the shared key can be derived from the IKEv2 SA, O/
  TWAMP can support certificate-based key exchange, which would allow
  for more operational flexibility and efficiency.  The key derivation
  presented in this document can also facilitate automatic key
  management.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ippm-ipsec/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-ippm-ipsec-05

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-ippm-ipsec-05


Please note that it may take a couple of minutes from the time of submissio=
n
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

_______________________________________________
ippm mailing list
ippm@ietf.org
https://www.ietf.org/mailman/listinfo/ippm


From nobody Mon Oct 27 03:43:14 2014
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Subject: [ippm] draft-ietf-ippm-metric-registry-01 review
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Dear all,

Here is my review of draft-ietf-ippm-metric-registry-01.
Sent to IPPM to generate some discussions.
> Network Working Group                                         M. Bagnulo
> Internet-Draft UC3M
> Intended status: Best Current Practice                         B. Claise
> Expires: March 14, 2015                              Cisco Systems, Inc.
>                                                               P. Eardley
> BT
>                                                                A. Morton
> AT&T Labs
>                                                                A. Akhter
>                                                      Cisco Systems, Inc.
>                                                       September 10, 2014
>
>
>                     Registry for Performance Metrics
>                    draft-ietf-ippm-metric-registry-01
>
> Abstract
>
>    This document defines the IANA Registry for Performance Metrics.
>    This document also gives a set of guidelines for Registered
>    Performance Metric requesters and reviewers.
>
> 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 March 14, 2015.
>
> 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
>
>
>
> Bagnulo, et al.          Expires March 14, 2015 [Page 1]
> 
> Internet-Draft      Registry for Performance Metrics September 2014
>
>
>    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.  Open Issues . . . . . . . . . . . . . . . . . . . . . . . . .   3
>    2.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
>    3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   5
>    4.  Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
>    5.  Design Considerations for the Registry and Registered Metrics   7
>      5.1.  Interoperability  . . . . . . . . . . . . . . . . . . . .   7
>      5.2.  Criteria for Registered Performance Metrics . . . . . . .   8
>      5.3.  Single point of reference for Performance metrics . . . .   8
>      5.4.  Side benefits . . . . . . . . . . . . . . . . . . . . . .   9
>    6.  Performance Metric Registry: Prior attempt  . . . . . . . . .   9
>      6.1.  Why this Attempt Will Succeed?  . . . . . . . . . . . . .  10
>    7.  Defintion of the Performance Metric Registry  . . . . . . . .  10
>      7.1.  Summary Category  . . . . . . . . . . . . . . . . . . . .  12
>        7.1.1.  Identifier  . . . . . . . . . . . . . . . . . . . . .  12
>        7.1.2.  Name  . . . . . . . . . . . . . . . . . . . . . . . .  13
>        7.1.3.  URI . . . . . . . . . . . . . . . . . . . . . . . . .  13
>        7.1.4.  Description . . . . . . . . . . . . . . . . . . . . .  14
>      7.2.  Metric Definition Category  . . . . . . . . . . . . . . .  14
>        7.2.1.  Reference Definition  . . . . . . . . . . . . . . . .  14
>        7.2.2.  Fixed Parameters  . . . . . . . . . . . . . . . . . .  14
>      7.3.  Method of Measurement Category  . . . . . . . . . . . . .  15
>        7.3.1.  Reference Method  . . . . . . . . . . . . . . . . . .  15
>        7.3.2.  Packet Generation Stream  . . . . . . . . . . . . . .  15
>        7.3.3.  Traffic Filter  . . . . . . . . . . . . . . . . . . .  16
>        7.3.4.  Sampling distribution . . . . . . . . . . . . . . . .  16
>        7.3.5.  Run-time Parameters . . . . . . . . . . . . . . . . .  16
>        7.3.6.  Role  . . . . . . . . . . . . . . . . . . . . . . . .  17
>      7.4.  Output Category . . . . . . . . . . . . . . . . . . . . .  17
>        7.4.1.  Value . . . . . . . . . . . . . . . . . . . . . . . .  17
>        7.4.2.  Data Format . . . . . . . . . . . . . . . . . . . . .  17
>        7.4.3.  Reference . . . . . . . . . . . . . . . . . . . . . .  18
>        7.4.4.  Metric Units  . . . . . . . . . . . . . . . . . . . .  18
>      7.5.  Admisnitratvie information  . . . . . . . . . . . . . . .  18
>        7.5.1.  Status  . . . . . . . . . . . . . . . . . . . . . . .  18
>        7.5.2.  Requester . . . . . . . . . . . . . . . . . . . . . .  18
>        7.5.3.  Revision  . . . . . . . . . . . . . . . . . . . . . .  18
>        7.5.4.  Revision Date . . . . . . . . . . . . . . . . . . . .  18
>      7.6.  Comments and Remarks  . . . . . . . . . . . . . . . . . .  18
>    8.  The Life-Cycle of Registered Metrics  . . . . . . . . . . . .  19
>      8.1.  Adding new Performance Metrics to the Registry  . . . . .  19
>
>
>
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>
>      8.2.  Revising Registered Performance Metrics . . . . . . . . .  20
>      8.3.  Deprecating Registered Performance Metrics  . . . . . . .  21
>    9.  Performance Metric Registry and other Registries  . . . . . .  22
>    10. Security considerations . . . . . . . . . . . . . . . . . . .  22
>    11. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  22
>    12. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  23
>    13. References  . . . . . . . . . . . . . . . . . . . . . . . . .  23
>      13.1.  Normative References . . . . . . . . . . . . . . . . . .  23
>      13.2.  Informative References . . . . . . . . . . . . . . . . .  24
>    Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  25
>
> 1.  Open Issues
>
>    1.  Many aspects of the Naming convention are TBD, and need
>        discussion.  For example, we have distinguished RTCP-XR metrics
>        as End-Point (neither active nor passive in the traditional
>        sense, so not Act_ or Pas_).  Even though we may not cast all
>        naming conventions in stone at the start, it will be helpful to
>        look at several examples of passive metric names now.
>
>    2.  We should expand on the different roles and responsibilities of
>        the Performance Metrics Experts versus the Performance Metric
>        Directorate.  At least, the Performance Metric Directorate one
>        should be expanded. --- (v7) If these are different entities, our
>        only concern is the role of the "PM Experts".
I would in favor or removing the Performance Metric Directorate.
The directorates are for the benefit of the AD.
 From RFC 2418 and http://www.ietf.org/iesg/directorate.html

    A request for Revision is ONLY permissible when the changes maintain
    backward-compatibility with implementations of the prior Registry
    entry describing a Registered Metric (entries with lower revision
    numbers, but the same Identifier and Name).

Also, the directorate live and goal might change along the time. So 
specify the directorate goal is in stone in a RFC is not appropriate.
However, a sentence such as: at the time of writing this line, a 
performance metric directorate exists, which can help ....

>
>    3.  Revised Registry Entries: Keep for history (deprecated) or
>        Delete?
We should delete.
See in line
>
>    4.  Need to include an example for a name for a passive metric
>
>    5.  Definition of Parameter needs more work?
>
>    6.  Whether the name of the metric should contain the version of the
>        metric
No. Because we have a new performance metric revision, and it must be 
interoperable.


>
>    7.  reserve some values for examples and private use?
>
>    8.  should we define a "type" column with the possible values
>        "active" "passive" "hybrid" "endpoint"? if we go for all 4 of
>        them, we should define the corresponding prefixes for the metric
>        name (at this point only the pas and act are defined)
>
>    9.  URL: should we include a URL link in each registry entry with a
>        URL specific to the entry that links to a different text page
>        that contains all the details of the registry entry as in
>        http://www.iana.org/assignments/xml-registry/xml-
>        registry.xhtml#ns
>
>
I don't understand which advantages this adds.
If I compare with IPFIX, which has got a similar mechanism, it's easier 
for a collector to download a single file.
>
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>
> 2.  Introduction
>
>    The IETF specifies and uses Performance Metrics of protocols and
>    applications transported over its protocols.  Performance metrics are
>    such an important part of the operations of IETF protocols that
>    [RFC6390] specifies guidelines for their development.
>
>    The definition and use of Performance Metrics in the IETF happens in
>    various working groups (WG), most notably:
>
>       The "IP Performance Metrics" (IPPM) WG is the WG primarily
>       focusing on Performance Metrics definition at the IETF.
>
>       The "Metric Blocks for use with RTCP's Extended Report Framework"
>       (XRBLOCK) WG recently specified many Performance Metrics related
>       to "RTP Control Protocol Extended Reports (RTCP XR)" [RFC3611],
>       which establishes a framework to allow new information to be
>       conveyed in RTCP, supplementing the original report blocks defined
>       in "RTP: A Transport Protocol for Real-Time Applications",
>       [RFC3550].
>
>       The "Benchmarking Methodology" WG (BMWG) defined many Performance
>       Metrics for use in laboratory benchmarking of inter-networking
>       technologies.
>
>       The "IP Flow Information eXport" (IPFIX) WG Information elements
>       related to Performance Metrics are currently proposed.
>
>       The "Performance Metrics for Other Layers" (PMOL) concluded WG,
>       defined some Performance Metrics related to Session Initiation
>       Protocol (SIP) voice quality [RFC6035].
>
>    It is expected that more Performance Metrics will be defined in the
>    future, not only IP-based metrics, but also metrics which are
>    protocol-specific and application-specific.
>
>    However, despite the importance of Performance Metrics, there are two
>    related problems for the industry.  First, how to ensure that when
>    one party requests another party to measure (or report or in some way
>    act on) a particular Performance Metric, then both parties have
>    exactly the same understanding of what Performance Metric is being
>    referred to.  Second, how to discover which Performance Metrics have
>    been specified, so as to avoid developing new Performance Metric that
>    is very similar.  The problems can be addressed by creating a
>    registry of performance metrics.  The usual way in which IETF
>    organizes namespaces is with Internet Assigned Numbers Authority
>    (IANA) registries, and there is currently no Performance Metrics
>    Registry maintained by the IANA.
>
>
>
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>    This document therefore creates a Performance Metrics Registry.  It
>    also provides best practices on how to define new or updated entries
>    in the Performance Metrics Registry.
NEW:
    This document therefore creates a Performance Metrics Registry. It
    also provides best practices on how to specify new entries or update 
ones
    in the Performance Metrics Registry.
>
> 3.  Terminology
>
>    The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
>    "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
>    "OPTIONAL" in this document are to be interpreted as described in
>    [RFC2119].
>
>    The terms Performance Metric and Performance Metrics Directorate are
>    defined in [RFC6390], and copied over in this document for the
>    readers convenience.
>
>    Performance Metric:  A Performance Metric is a quantitative measure
>       of performance, specific to an IETF-specified protocol or specific
>       to an application transported over an IETF-specified protocol.
>       Examples of Performance Metrics are the FTP response time for a
>       complete file download, the DNS response time to resolve the IP
>       address, a database logging time, etc.
>
>    Registered Performance Metric:  A Registered Performance Metric (or
>       Registered Metric) is a Performance Metric expressed as an entry
>       in the Performance Metric Registry, and comprised of a
>       specifically named metric which has met all the registry review
>       criteria, is under the curation of IETF Performance Metrics
>       Experts, and whose changes are controlled by IANA.
I don't understand why"and comprised of a specifically named metric 
which has met all the registry review criteria," is needed. Candidate to 
remove
"and whose changes are controlled by IANA". It seems to imply that 
Registered Performance Metric change is normal. Not really.
"is under the curation of IETF Performance Metrics Experts". The 
Performance Metrics Experts are the experts IANA calls for entry validation.

NEW:
   Registered Performance Metric:  A Registered Performance Metric (or
       Registered Metric) is a Performance Metric expressed as an entry
       in the Performance Metric Registry, administered by IANA.


>
>    Performance Metrics Registry:  The IANA registry containing
>       Registered Performance Metrics.  In this document, it is also
>       called simply "Registry".
>
>    Proprietary Registry:  A set of metrics that are registered in a
>       proprietary registry, as opposed to Performance Metrics Registry.
>
>    Performance Metrics Experts:  The Performance Metrics Experts is a
>       group of experts selected by the IESG to validate the Performance
>       Metrics before updating the Performance Metrics Registry. The
>       Performance Metrics Experts work closely with IANA.
>
>    Performance Metrics Directorate:  The Performance Metrics Directorate
>       is a directorate that provides guidance for Performance Metrics
>       development in the IETF.  The Performance Metrics Directorate
>       should be composed of experts in the performance community,
>       potentially selected from the IP Performance Metrics (IPPM),
>       Benchmarking Methodology (BMWG), and Performance Metrics for Other
>       Layers (PMOL) WGs.
PMOL doesn't exist any longer. So the last sentence is difficult to fulfill.
At some point in time, the other WGs will not exist any longer.

NEW:
       Performance Metrics Directorate:  The Performance Metrics 
Directorate
       is a directorate that provides guidance for Performance Metrics
       development in the IETF.

The following sentence (NEW) should not be part of the definition, but 
be part of a subsequent performance metrics directorate paragraph (note: 
if we keep it in the draft)
       The Performance Metrics Directorate
       should be composed of experts in the performance community,
       potentially selected from the IP Performance Metrics (IPPM),
       Benchmarking Methodology (BMWG), and the closed Performance 
Metrics for Other
       Layers (PMOL) WGs, or any future performance-related WGs.

>
>
>
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>
>    Parameter:  An input factor defined as a variable in the definition
>       of a metric.  A numerical or other specified factor forming one of
>       a set that defines a metric or sets the conditions of its
>       operation.  All Input Parameters must be known to measure using a
>       metric and interpret the results.  Although Input Parameters do
>       not change the fundamental nature of the metric's definition, some
>       have substantial influence on the network property being assessed
>       and interpretation of the results.
>
>          Consider the case of packet loss in the following two cases.
NEW:
          Consider the case of packet loss in the following two Active 
Measurement Method cases.
> The first case is packet loss as background loss where the
>          parameter set includes a very sparse Poisson stream, and only
>          characterizes the times when packets were lost.  Actual user
>          streams likely see much higher loss at these times, due to tail
>          drop or radio errors.  The second case is packet loss as
>          inverse of Throughput where the parameter set includes a very
throughput
> dense, bursty stream, and characterizes the loss experienced by
>          a stream that approximates a user stream.  These are both "loss
>          metrics", but the difference in interpretation of the results
>          is highly dependent on the Parameters (at least), to the
>          extreme where we are actually using loss to infer its
>          compliment: delivered throughput.
>
>    Active Measurement Method:  Methods of Measurement conducted on
>       traffic which serves only the purpose of measurement and is
>       generated for that reason alone, and whose traffic characteristics
>       are known a priori.  An Internet user's host can generate active
>       measurement traffic (virtually all typical user-generated traffic
>       is not dedicated to active measurement, but it can produce such
>       traffic with the necessary application operating).
Not sure what the previous sentence adds to the definition.
I would add some examples. OWAMP, TWAMP, IP SLA
>
>    Passive Measurement Method:  Methods of Measurement conducted on
>       network traffic, generated either from the end users or from
>       network elements. 
"generated" in the previous sentence is wrong
Maybe
Passive Measurement Method:  Methods of Measurement conducted on
       network traffic, issue either by the end users or by
       network elements, as opposed to active traffic (see Active 
Measurement method)
> One characteristic of Passive Measurement
>       Methods is that sensitive information may be observed, and as a
>       consequence, stored in the measurement system.
I would add some examples. IPFIX, PSAMP. [RFC 5470], [RFC 5476]
>
>    Hybrid Measurement Method:  Methods of Measurement which use a
>       combination of Active Measurement and Passive Measurement methods.
>
> 4.  Scope
>
>    The intended audience of this document includes those who prepare and
>    submit a request for a Registered Performance Metric, and for the
>    Performance Metric Experts who review a request.
The above should be improved.
A good example is http://tools.ietf.org/html/rfc7013#section-1.1.
>
>    This document specifies a Performance Metrics Registry in IANA.  This
>    Performance Metric Registry is applicable to Performance Metrics
>
>
>
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>
>    issued from Active Measurement, Passive Measurement, from end-point
>    calculation or any other form of Performance Metric.  This registry
>    is designed to encompass Performance Metrics developed throughout the
>    IETF and especially for the following existing working groups: IPPM,
>    XRBLOCK, IPFIX, and BMWG.  This document analyzes an prior attempt to
>    set up a Performance Metric Registry, and the reasons why this design
>    was inadequate [RFC6248].  Finally, this document gives a set of
>    guidelines for requesters and expert reviewers of candidate
>    Registered Performance Metrics.
>
>    This document makes no attempt to populate the Registry with initial
>    entries.  It does provides a few examples that are merely
>    illustrations and should not be included in the registry at this
>    point in time.
>
>    Based on [RFC5226] Section 4.3, this document is processed as Best
>    Current Practice (BCP) [RFC2026].
>
> 5.  Design Considerations for the Registry and Registered Metrics
The title is confusing: it seems that you treat both the Registry and 
the Registered Metrics in the section.
Let me propose
     5.  Motivation for a Performance Metrics Registry
         5.1 Interoperability
         5.2 Single point of reference for performance metrics
                 note: this is the actual content of 5.3
         5.3 Side Benefits
                 note: this is the actual content of 5.4
     6. Criteria for Performance Metrics Registration
                 note: this is the actual content of 5.2
                 note2: the title has been slightly changed compared to 5.2


I believe it's close to the content.
>
>    In this section, we detail several design considerations that are
>    relevant for understanding the motivations and expected use of the
>    Performance Metric Registry.
>
> 5.1.  Interoperability
>
>    As any IETF registry, the primary use for a registry is to manage a
>    namespace for its use within one or more protocols.  In this
>    particular case of the Performance Metric Registry, there are two
>    types of protocols that will use the values defined in the Registry
>    for their operation:
NEW:
    As any IETF registry, the primary use for a registry is to manage a
    namespace for its use within one or more protocols.  In this
    particular case of the Performance Metric Registry, there are two
    types of protocols that will use the _Performance Metrics_ defined 
in the Registry
    for their operation:
>
>    o  Control protocol: this type of protocols is used to allow one
>       entity to request another entity to perform a measurement using a
>       specific metric defined by the Registry.  One particular example
>       is the LMAP framework [I-D.ietf-lmap-framework].  Using the LMAP
>       terminology, the Registry is used in the LMAP Control protocol to
>       allow a Controller to request a measurement task to one or more
>       Measurement Agents.  In order to enable this use case, the entries
>       of the Performance Metric Registry must be well enough defined to
>       allow a Measurement Agent implementation to trigger a specific
>       measurement task upon the reception of a control protocol message.
>       This requirements heavily constrains the type of entries that are
>       acceptable for the Performance Metric Registry.
>
>    o  Report protocol: This type of protocols is used to allow an entity
>       to report measurement results to another entity.  By referencing
>       to a specific Performance Metric Registry, it is possible to
>
>
>
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>       properly characterize the measurement result data being
>       transferred.  Using the LMAP terminology, the Registry is used in
>       the Report protocol to allow a Measurement Agent to report
>       measurement results to a Collector.
>
> 5.2.  Criteria for Registered Performance Metrics
NEW: 5.2.  Criteria for Performance Metrics Registration
>
>    It is neither possible nor desirable to populate the Registry with
>    all combinations of input parameters of all Performance Metrics.  The
>    Registered Performance Metrics should be:
>
>    1.  interpretable by the user.
>
>    2.  implementable by the software designer,
>
>    3.  deployable by network operators, without major impact on the
>        networks,
>
>    4.  accurate, for interoperability and deployment across vendors,
>
>    5.  Operational useful, so that it has significant industry interest
>        and/or has seen deployment,
>
>    6.  Sufficiently tightly defined, so that changing Parameters does
>        not change the fundamental nature of the measurement, nor change
>        the practicality of its implementation.
>
>    In essence, there needs to be evidence that a candidate Registry
>    entry has significant industry interest, or has seen deployment, and
>    there is agreement that the candidate Registered Metric serves its
>    intended purpose.
>
> 5.3.  Single point of reference for Performance metrics
metrics -> Metrics
>
>    A Registry for Performance metrics serves as a single point of
metrics -> Metrics
Maybe more instance. Please check throughout the draft

> reference for Performance Metrics defined in different working groups
>    in the IETF.  As we mentioned earlier, there are several WGs that
>    define Performance Metrics in the IETF and it is hard to keep track
>    of all them.  This results in multiple definitions of similar metrics
>    that attempt to measure the same phenomena but in slightly different
>    (and incompatible) ways.  Having a Registry would allow both the IETF
>    community and external people to have a single list of relevant
>    Performance Metrics defined by the IETF (and others, where
>    appropriate).  The single list is also an essential aspect of
>    communication about metrics, where different entities that request
>    measurements, execute measurements, and report the results can
>    benefit from a common understanding of the referenced metric.
>
>
>
>
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>
> 5.4.  Side benefits
>
>    There are a couple of side benefits of having such a Registry.
>    First, the Registry could serve as an inventory of useful and used
>    metrics, that are normally supported by different implementations of
>    measurement agents.  Second, the results of the metrics would be
>    comparable even if they are performed by different implementations
>    and in different networks, as the metric is properly defined. BCP
>    176 [RFC6576] examines whether the results produced by independent
>    implementations are equivalent in the context of evaluating the
>    completeness and clarity of metric specifications.  This BCP defines
>    the standards track advancement testing for (active) IPPM metrics,
>    and the same process will likely suffice to determine whether
>    Registry entries are sufficiently well specified to result in
>    comparable (or equivalent) results.  Registry entries which have
>    undergone such testing SHOULD be noted, with a reference to the test
>    results.
>
> 6.  Performance Metric Registry: Prior attempt
>
>    There was a previous attempt to define a metric registry RFC 4148
>    [RFC4148].  However, it was obsoleted by RFC 6248 [RFC6248] because
>    it was "found to be insufficiently detailed to uniquely identify IPPM
>    metrics... [there was too much] variability possible when
>    characterizing a metric exactly" which led to the RFC4148 registry
>    having "very few users, if any".
>
>    A couple of interesting additional quotes from RFC 6248 might help
>    understand the issues related to that registry.
>
>    1.  "It is not believed to be feasible or even useful to register
>        every possible combination of Type P, metric parameters, and
>        Stream parameters using the current structure of the IPPM Metrics
>        Registry."
>
>    2.  "The registry structure has been found to be insufficiently
>        detailed to uniquely identify IPPM metrics."
>
>    3.  "Despite apparent efforts to find current or even future users,
>        no one responded to the call for interest in the RFC 4148
>        registry during the second half of 2010."
>
>    The current approach learns from this by tightly defining each entry
>    in the registry with only a few variable Parameters to be specified
>    by the measurement designer, if any.  The idea is that entries in the
>    Registry represent different measurement methods which require input
represent -> stem from
> parameters to set factors like source and destination addresses
>    (which do not change the fundamental nature of the measurement).  The
>
>
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>    downside of this approach is that it could result in a large number
>    of entries in the Registry.  We believe that less is more in this
>    context - it is better to have a reduced set of useful metrics rather
>    than a large set of metrics with questionable usefulness. Therefore
>    this document defines that the Registry only includes metrics that
>    are well defined and that have proven to be operationally useful.  In
>    order to guarantee these two characteristics we require that a set of
>    experts review the allocation request to verify that the metric is
>    well defined and it is operationally useful.
>
> 6.1.  Why this Attempt Will Succeed?
>
>    The Registry defined in this document addresses the main issues
>    identified in the previous attempt.  As we mention in the previous
>    section, one of the main issues with the previous registry was that
>    the metrics contained in the registry were too generic to be useful.
>    In this Registry, the Registry requests are evaluated by an expert
>    group, the Performance Metrics Experts, who will make sure that the
>    metric is properly defined.  This document provides guidelines to
>    assess if a metric is properly defined.
>
>    Another key difference between this attempt and the previous one is
>    that in this case there is at least one clear user for the Registry:
>    the LMAP framework and protocol.  Because the LMAP protocol will use
>    the Registry values in its operation, this actually helps to
>    determine if a metric is properly defined.  In particular, since we
>    expect that the LMAP control protocol will enable a controller to
>    request a measurement agent to perform a measurement using a given
>    metric by embedding the Performance Metric Registry value in the
>    protocol, a metric is properly specified if it is defined well-enough
>    so that it is possible (and practical) to implement the metric in the
>    measurement agent.  This was clearly not the case for the previous
>    attempt: defining a metric with an undefined P-Type makes its
>    implementation unpractical.
P-Type is really IPPM specific, while the registry is not IPPM specific.
Either you should really explain this concept or remove.
>
> 7.  Defintion of the Performance Metric Registry
>
>    In this section we define the columns of the Performance Metric
>    Registry.  This registry will contain all Registered Performance
>    Metrics including active, passive, hybrid, endpoint metrics and any
>    other type of performance metric that can be envisioned. Because of
>    that, it may be the case that some of the columns defined are not
>    applicable for a given type of metric.  If this is the case, the
>    column(s) SHOULD be populated with the "NA" value (Non Applicable).
>    However, the "NA" value MUST NOT be used any any metric in the
any any -> by any
> following columns: Identifier, Name, URI, Status, Requester,
>    Revision, Revision Date, Description and Reference Specification.
>    Moreover, In addition, it may be possible that in the future, a new
>
>
>
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>
>    type of metric requires additional columns.  Should that be the case,
>    it is possible to add new columns to the registry.  The specification
>    defining the new column(s) MUST define how to populate the new
>    column(s) for existing entries.
MUST -> must
>
>    The columns of the Performance Metric Registry are defined next.  The
>    columns are grouped into "Categories" to facilitate the use of the
>    registry.  Categories are described at the 3.x heading level, and
>    columns are at the 3.x.y heading level.  The Figure below illustrates
>    this organization.  An entry (row) therefore gives a complete
>    description of a Registered Metric.
3.x and 3.x.y are wrong
>
>    Each column serves as a check-list item and helps to avoid omissions
>    during registration and expert review.  In some cases an entry (row)
>    may have some columns without specific entries, marked Not Applicable
>    (NA).
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
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>
>  Registry Categories and Columns, shown as
>                                                         Category
> ------------------
>                                                         Column | Column |
Some formatting issues.
>
>         Summary
>         -------------------------------
>         ID | Name | URI | Description |
>
>
>         Metric Definition
>         -----------------------------------------
>         Reference Definition | Fixed Parameters |
>
>
>         Method of Measurement
> ---------------------------------------------------------------------------------
>         Reference Method | Packet Generation | Traffic | Sampling     
> | Run-time | Role |
>                          | Stream            | Filter  | distribution 
> | Param    |      |
>
>         Output
>         -----------------------------------------
>         | Type | Reference  | Data   | Units |
>         |      | Definition | Format |       |
>
>
>         Administrative information
>         ----------------------------------
>         Status |Request | Rev | Rev.Date |
>
>
>         Comments and Remarks
>         --------------------
>
>
>
> 7.1.  Summary Category
>
> 7.1.1.  Identifier
>
>    A numeric identifier for the Registered Performance Metric. This
>    identifier MUST be unique within the Performance Metric Registry.
>
>    The Registered Performance Metric unique identifier is a 16-bit
>    integer (range 0 to 65535).  When adding newly Registered Performance
>    Metrics to the Performance Metric Registry, IANA SHOULD assign the
>    lowest available identifier to the next Registered Performance
>    Metric.
SHOULD -> should.
>
>
>
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>
> 7.1.2.  Name
>
>    As the name of a Registered Performance Metric is the first thing a
>    potential implementor will use when determining whether it is
>    suitable for a given application, it is important to be as precise
>    and descriptive as possible. 
, while maintaining readability.
> New names of Registered Performance
>    Metrics:
>
>    1.  "MUST be chosen carefully to describe the Registered Performance
>        Metric and the context in which it will be used."
>
>    2.  "MUST be unique within the Performance Metric Registry."
>
>    3.  "MUST use capital letters for the first letter of each component
>        . All other letters MUST be lowercase, even for acronyms.
>        Exceptions are made for acronyms containing a mixture of
>        lowercase and capital letters, such as 'IPv4' and 'IPv6'."
>
>    4.  "MUST use '_' between each component composing the Registered
>        Performance Metric name."
>
>    5.  "MUST start with prefix Act_ for active measurement Registered
>        Performance Metric."
>
>    6.  "MUST start with prefix Pas_ for passive monitoring Registered
>        Performance Metric."
>
>    7.  Other types of metrics should define a proper prefix for
>        identifying the type.
>
>    8.  The remaining rules for naming are left to the Performance
>        Experts to determine as they gather experience, so this is an
>        area of planned update by a future RFC.
9. Should be in sync with the different values in the registry.
     example: must contain "Pas" if the value of Reference Method field 
is passive, right?
>    An example is "Act_UDP_Latency_Poisson_99mean" for a active
>    monitoring UDP latency metric using a Poisson stream of packets and
>    producing the 99th percentile mean as output.
>
> 7.1.3.  URI
>
>    The URI column MUST contain a URI [RFC 3986] that uniquely identified
>    the metric.  The URI is a URN [RFC 2141].  The URI is automatically
>    generated by prepending the prefix urn:ietf:params:ippm:metric: to
>    the metric name.  The resulting URI is globally unique.
At this point, I see in the 7.X a mix of instruction for the Perf. 
Metric Experts and for IANA.
IANA: the sentence above or the last sentence in 7.1
Shouldn't we separate the instructions in IANA in the IANA 
considerations section?
>
>
>
>
>
>
>
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>
> 7.1.4.  Description
>
>    A Registered Performance Metric Description is a written
>    representation of a particular Registry entry.  It supplements the
>    metric name to help Registry users select relevant Registered
>    Performance Metrics.
>
> 7.2.  Metric Definition Category
>
>    This category includes columns to prompt all necessary details
>    related to the metric definition, including the RFC reference and
>    values of input factors, called fixed parameters, which are left open
>    in the RFC but have a particular value defined by the performance
>    metric.
>
> 7.2.1.  Reference Definition
>
>    This entry provides a reference (or references) to the relevant
>    section(s) of the document(s) that define the metric, as well as any
>    supplemental information needed to ensure an unambiguous definition
>    for implementations.  The reference needs to be an immutable
>    document, such as an RFC; for other standards bodies, it is likely to
>    be necessary to reference a specific, dated version of a
>    specification.
you speak about other standard bodies here (which I agree with), but 
here is the definition

    Performance Metric:  A Performance Metric is a quantitative measure
       of performance, specific to an IETF-specified protocol or specific
       to an application transported over an IETF-specified protocol.

NEW:

    Performance Metric:  A Performance Metric is a quantitative measure
       of performance, targeted to an IETF-specified protocol or targeted
       to an application transported over an IETF-specified protocol.


Proposal:
    The reference needs to be an immutable
    document, such as an RFC; in cases where other standards bodies 
would benefit from the Performance Metric Registry, it is
    necessary to reference a specific, dated version of a specification.

>
> 7.2.2.  Fixed Parameters
>
>    Fixed Parameters are input factors whose value must be specified in
>    the Registry.  The measurement system uses these values.
>
>    Where referenced metrics supply a list of Parameters as part of their
>    descriptive template, a sub-set of the Parameters will be designated
>    as Fixed Parameters. 
Not a def., so lower case.
> For example, for active metrics, Fixed
idem. Maybe more occurrences. Please check through the draft.
> Parameters determine most or all of the IPPM Framework convention
>    "packets of Type-P" as described in [RFC2330], such as transport
>    protocol, payload length, TTL, etc.  An example for passive metrics
>    is for RTP packet loss calculation that relies on the validation of a
>    packet as RTP which is a multi-packet validation controlled by
>    MIN_SEQUENTIAL as defined by [RFC3550].  Varying MIN_SEQUENTIAL
>    values can alter the loss report and this value could be set as a
>    fixed parameter
>
>    A Parameter which is Fixed for one Registry entry may be designated
>    as a Run-time Parameter for another Registry entry.
>
>
>
>
>
>
>
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>
> 7.3.  Method of Measurement Category
>
>    This category includes columns for references to relevant sections of
>    the RFC(s) and any supplemental information needed to ensure an
>    unambiguous method for implementations.
>
> 7.3.1.  Reference Method
Slightly confused with the difference with 7.2.1
>
>    This entry provides references to relevant sections of the RFC(s)
>    describing the method of measurement, as well as any supplemental
>    information needed to ensure unambiguous interpretation for
>    implementations referring to the RFC text.
>
>    Specifically, this section should include pointers to pseudocode or
>    actual code that could be used for an unambigious implementation.
>
> 7.3.2.  Packet Generation Stream
>
>    This column applies to metrics that generate traffic for measurement
>    purposes including but not necessarily limited to Active metrics.
>    The generated traffic is referred as stream and this columns describe
>    its characteristics.  Principally, two different streams are used in
>    IPPM metrics, Poisson distributed as described in [RFC2330] and
>    Periodic as described in [RFC3432].  Both Poisson and Periodic have
>    their own unique parameters, and the relevant set of values is
>    specified in this column.
>
>    Each entry for this column contains the following information:
>
>    o  Value: The name of the packet stream scheduling discipline
>
>    o  Stream Parameters: The values and formats of input factors for
>       each type of stream.  For example, the average packet rate and
>       distribution truncation value for streams with Poisson-distributed
>       inter-packet sending times.
>
>    o  Reference: the specification where the stream is defined
>
>    The simplest example of stream specification is Singleton scheduling,
singleton
> where a single atomic measurement is conducted.  Each atomic
>    measurement could consist of sending a single packet (such as a DNS
>    request) or sending several packets (for example, to request a
>    webpage).  Other streams support a series of atomic measurements in a
>    "sample", with a schedule defining the timing between each
>    transmitted packet and subsequent measurement.
>
>
>
>
>
>
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>
> 7.3.3.  Traffic Filter
>
>    This column applies to metrics that observe packets flowing in the
>    wire i.e. that is not specifically addressed to the measurement
>    agent.  This includes but is not limited to Passive Metrics. The
>    filter specifies the traffic constraints that the passive measurement
>    method used is valid (or invalid) for.  This includes valid packet
>    sampling ranges, width of valid traffic matches (eg. all traffic on
>    interface, UDP packets packets in a flow (eg. same RTP session).
>
>    It is possible that the measurement method may not have a specific
>    limitation.  However, this specific registry entry with it's
>    combination of fixed parameters implies restrictions.  These
>    restrictions would be listed in this field.
I don't understand the above paragraph.
Do you want to say that this is applicable to all traffic, that there 
are no traffic filter.
If yes, how do note that. The next section contains "all" if no sampling.
Do we want "none" if not traffic filter?
Or maybe "N.A." in each cases, to be consistent?
>
> 7.3.4.  Sampling distribution
>
>    The sampling distribution defines out of all the packets that match
>    the traffic filter, which one of those are actually used for the
>    measurement.  One possibility is "all" which implies that all packets
>    matching the Traffic filter are considered, but there may be other
>    sampling strategies.  It includes the following information:
>
>       Value: the name of the sampling distribution
>
>       Parameters: if any.
>
>       Reference definition: pointer to the specification where the
>       sampling distribution is properly defined.
>
> 7.3.5.  Run-time Parameters
>
>    Run-Time Parameters are input factors that must be determined,
>    configured into the measurement system, and reported with the results
>    for the context to be complete.  However, the values of these
>    parameters is not specified in the Registry, rather these parameters
>    are listed as an aid to the measurement system implementor or user
>    (they must be left as variables, and supplied on execution).
>
>    Where metrics supply a list of Parameters as part of their
>    descriptive template, a sub-set of the Parameters will be designated
>    as Run-Time Parameters.
>
>    A Data Format of each Run-time Parameter SHALL be specified in this
>    column, to simplify the control and implementation of measurement
>    devices.
Don't think it's appropriate to specify a data format in the registry.
I could use different encoding such as IPFIX, TWAMP, NETCONF, JSON, ... 
and still use this registry.
>
>
>
>
>
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>
>    Examples of Run-time Parameters include IP addresses, measurement
>    point designations, start times and end times for measurement, and
>    other information essential to the method of measurement.
>
> 7.3.6.  Role
>
>    In some method of measurements, there may be several roles defined
>    e.g. on a one-way packet delay active measurement, there is one
>    measurement agent that generates the packets and the other one that
>    receives the packets.  This column contains the name of the role for
>    this particular entry.  In the previous example, there should be two
>    entries int he registry, one for each role, so that when a
>    measurement agent is instructed to perform the one way delay source
>    metric know that it is supposed to generate packets.  The values for
>    this field are defined in the reference method of measurement.
I'm missing this "role" goal.
Different roles imply different performance metrics, no?
>
> 7.4.  Output Category
>
>    For entries which involve a stream and many singleton measurements, a
>    statistic may be specified in this column to summarize the results to
>    a single value.  If the complete set of measured singletons is
>    output, this will be specified here.
>
>    Some metrics embed one specific statistic in the reference metric
>    definition, while others allow several output types or statistics.
>
> 7.4.1.  Value
>
>    This column contain the name of the output type.  The output type
>    defines the type of result that the metric produces.  It can be the
>    raw results or it can be some form of statistic.  The specification
>    of the output type must define the format of the output.  In some
>    systems, format specifications will simplify both measurement
>    implementation and collection/storage tasks.  Note that if two
>    different statistics are required from a single measurement (for
>    example, both "Xth percentile mean" and "Raw"), then a new output
>    type must be defined ("Xth percentile mean AND Raw").
>
> 7.4.2.  Data Format
Same point as before on the data format.
>
>    This column provides the data format for the output.  It is provided
>    to simplify the communication with collection systems and
>    implementation of measurement devices.
>
>
>
>
>
>
>
>
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>
> 7.4.3.  Reference
>
>    This column contains a pointer to the specification where the output
>    type is defined
>
> 7.4.4.  Metric Units
>
>    The measured results must be expressed using some standard dimension
>    or units of measure.  This column provides the units.
>
>    When a sample of singletons (see [RFC2330] for definitions of these
>    terms) is collected, this entry will specify the units for each
>    measured value.
I guess the above is an example.
>
> 7.5.  Admisnitratvie information
>
> 7.5.1.  Status
>
>    The status of the specification of this Registered Performance
>    Metric.  Allowed values are 'current' and 'deprecated'.  All newly
>    defined Information Elements have 'current' status.
>
> 7.5.2.  Requester
>
>    The requester for the Registered Performance Metric.  The requester
>    MAY be a document, such as RFC, or person.
>
> 7.5.3.  Revision
>
>    The revision number of a Registered Performance Metric, starting at 0
>    for Registered Performance Metrics at time of definition and
>    incremented by one for each revision.
>
> 7.5.4.  Revision Date
>
>    The date of acceptance or the most recent revision for the Registered
>    Performance Metric.
>
> 7.6.  Comments and Remarks
>
>    Besides providing additional details which do not appear in other
>    categories, this open Category (single column) allows for unforeseen
>    issues to be addressed by simply updating this Informational entry.
informational
>
>
>
>
>
>
>
>
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>
> 8.  The Life-Cycle of Registered Metrics
>
>    Once a Performance Metric or set of Performance Metrics has been
>    identified for a given application, candidate Registry entry
>    specifications in accordance with Section 7 are submitted to IANA to
>    follow the process for review by the Performance Metric Experts, as
>    defined below.  This process is also used for other changes to the
>    Performance Metric Registry, such as deprecation or revision, as
>    described later in this section.
>
>    It is also desirable that the author(s) of a candidate Registry entry
>    seek review in the relevant IETF working group, or offer the
>    opportunity for review on the WG mailing list.
If we keep the performance metrics directorate notion, then we must have 
a new paragraph here.

>
> 8.1.  Adding new Performance Metrics to the Registry
>
>    Requests to change Registered Metrics in the Performance Metric
>    Registry are submitted to IANA, which forwards the request to a
>    designated group of experts (Performance Metric Experts) appointed by
>    the IESG; these are the reviewers called for by the Expert Review
>    RFC5226 policy defined for the Performance Metric Registry. The
>    Performance Metric Experts review the request for such things as
>    compliance with this document, compliance with other applicable
>    Performance Metric-related RFCs, and consistency with the currently
>    defined set of Registered Performance Metrics.
>
>    Authors are expected to review compliance with the specifications in
>    this document to check their submissions before sending them to IANA.
>
>    The Performance Metric Experts should endeavor to complete referred
>    reviews in a timely manner.  If the request is acceptable, the
>    Performance Metric Experts signify their approval to IANA, which
>    changes 
changes -> updates
> the Performance Metric Registry.  If the request is not
>    acceptable, the Performance Metric Experts can coordinate with the
>    requester to change the request to be compliant.  The Performance
>    Metric Experts may also choose in exceptional circumstances to reject
>    clearly frivolous or inappropriate change requests outright.
>
>    This process should not in any way be construed as allowing the
>    Performance Metric Experts to overrule IETF consensus. Specifically,
>    any Registered Metrics that were added with IETF consensus require
>    IETF consensus for revision or deprecation.
>
>    Decisions by the Performance Metric Experts may be appealed as in
>    Section 7 of RFC5226.
>
>
>
>
>
>
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>
> 8.2.  Revising Registered Performance Metrics
>
>    A request for Revision is ONLY permissible when the changes maintain
ONLY -> only
> backward-compatibility with implementations of the prior Registry
>    entry describing a Registered Metric (entries with lower revision
>    numbers, but the same Identifier and Name).
>
>    The purpose of the Status field in the Performance Metric Registry is
>    to indicate whether the entry for a Registered Metric is 'current' or
>    'deprecated'.
>
>    In addition, no policy is defined for revising IANA Performance
>    Metric entries or addressing errors therein.  To be certain, changes
>    and deprecations within the Performance Metric Registry are not
>    encouraged, and should be avoided to the extent possible. However,
>    in recognition that change is inevitable, the provisions of this
>    section address the need for revisions.
>
>    Revisions are initiated by sending a candidate Registered Performance
>    Metric definition to IANA, as in Section X, identifying the existing
>    Registry entry.
>
>    The primary requirement in the definition of a policy for managing
>    changes to existing Registered Performance Metrics is avoidance of
>    interoperability problems; Performance Metric Experts must work to
>    maintain interoperability above all else.  Changes to Registered
>    Performance Metrics may only be done in an inter-operable way;
>    necessary changes that cannot be done in a way to allow
>    interoperability with unchanged implementations must result in the
>    creation of a new Registered Metric and possibly the deprecation of
>    the earlier metric.
>
>    A change to a Registered Performance Metric is held to be backward-
>    compatible only when:
>
>    1.  "it involves the correction of an error that is obviously only
>        editorial; or"
>
>    2.  "it corrects an ambiguity in the Registered Performance Metric's
>        definition, which itself leads to issues severe enough to prevent
>        the Registered Performance Metric's usage as originally defined;
>        or"
>
>    3.  "it corrects missing information in the metric definition without
>        changing its meaning (e.g., the explicit definition of 'quantity'
>        semantics for numeric fields without a Data Type Semantics
>        value); or"
>
>
>
>
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>
>    4.  "it harmonizes with an external reference that was itself
>        corrected."
>
>    5.  "BENOIT: NOTE THAT THERE ARE MORE RULES IN RFC 7013 SECTION 5 BUT
>        THEY WOULD ONLY APPLY TO THE ACTIVE/PASSIVE DRAFTS.  TO BE
>        DISCUSSED."
BENOIT should really focus on this :-)
>
>    If a change is deemed permissible by the Performance Metric Experts,
NEW: If an Performance Metric revision is deemed permissible by the 
Performance Metric Experts, according to the rules in this document,

> IANA makes the change in the Performance Metric Registry.  The
>    requester of the change is appended to the requester in the Registry.
>
>    Each Registered Performance Metric in the Registry has a revision
>    number, starting at zero.  Each change to a Registered Performance
>    Metric following this process increments the revision number by one.
>
>    COMMENT: Al (and Phil) think we should keep old/revised entries as-
>    is, marked as deprecated >>>> Since any revision must be inter-
>    operable according to the criteria above, there is no need for the
>    Performance Metric Registry to store information about old revisions.
Agreed.
>
>    When a revised Registered Performance Metric is accepted into the
>    Performance Metric Registry, the date of acceptance of the most
>    recent revision is placed into the revision Date column of the
>    Registry for that Registered Performance Metric.
>
>    Where applicable, additions to Registry entries in the form of text
>    Comments or Remarks should include the date, but such additions may
>    not constitute a revision according to this process.
>
> 8.3.  Deprecating Registered Performance Metrics
>
>    Changes that are not permissible by the above criteria for Registered
>    Metric's revision may only be handled by deprecation.  A Registered
>    Performance Metric MAY be deprecated and replaced when:
>
>    1.  "the Registered Performance Metric definition has an error or
>        shortcoming that cannot be permissibly changed as in
>        Section Revising Registered Performance Metrics; or"
>
>    2.  "the deprecation harmonizes with an external reference that was
>        itself deprecated through that reference's accepted deprecation
>        method; or"
>
>    A request for deprecation is sent to IANA, which passes it to the
>    Performance Metric Expert for review, as in Section 'The Process for
>    Review by the Performance Metric Experts'.  When deprecating an
>    Performance Metric, the Performance Metric description in the
>    Performance Metric Registry must be updated to explain the
>
>
>
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>
>    deprecation, as well as to refer to any new Performance Metrics
>    created to replace the deprecated Performance Metric.
>
>    The revision number of a Registered Performance Metric is incremented
>    upon deprecation, and the revision Date updated, as with any
>    revision.
>
>    The use of deprecated Registered Metrics should result in a log entry
>    or human-readable warning by the respective application.
>
>    Names and Metric ID of deprecated Registered Metrics must not be
>    reused.
>
> 9.  Performance Metric Registry and other Registries
>
>    BENOIT: TBD.
>
>    THE BASIC IDEA IS THAT PEOPLE COULD DIRECTLY DEFINE PERF. METRICS IN
>    OTHER EXISTING REGISTRIES, FOR SPECIFIC PROTOCOL/ENCODING. EXAMPLE:
>    IPFIX.  IDEALLY, ALL PERF.  METRICS SHOULD BE DEFINED IN THIS
>    REGISTRY AND REFERS TO FROM OTHER REGISTRIES.
>
> 10.  Security considerations
>
>    This draft doesn't introduce any new security considerations for the
>    Internet.  However, the definition of Performance Metrics may
>    introduce some security concerns, and should be reviewed with
>    security in mind.
>
> 11.  IANA Considerations
>
>    This document specifies the procedure for Performance Metrics
>    Registry setup.  IANA is requested to create a new Registry for
>    Performance Metrics called "Registered Performance Metrics" with the
>    columns defined in Section 7.
>
>    New assignments for Performance Metric Registry will be administered
>    by IANA through Expert Review [RFC5226], i.e., review by one of a
>    group of experts, the Performance Metric Experts, appointed by the
>    IESG upon recommendation of the Transport Area Directors.  The
>    experts will initially be drawn from the Working Group Chairs and
>    document editors of the Performance Metrics Directorate [performance-
>    metrics-directorate].
>
>    This document requests the allocation of the URI prefix
>    urn:ietf:params:ippm:metric for the purpose of generating URIs for
>    registered metrics.
>
>
>
>
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>
> 12.  Acknowledgments
>
>    Thanks to Brian Trammell and Bill Cerveny, IPPM chairs, for leading
>    some brainstorming sessions on this topic.
>
> 13.  References
>
> 13.1.  Normative References
Please order the RFC numbers.

Regards, Benoit
>
>    [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
>               Requirement Levels", BCP 14, RFC 2119, March 1997.
>
>    [RFC2026]  Bradner, S., "The Internet Standards Process -- Revision
>               3", BCP 9, RFC 2026, October 1996.
>
>    [RFC2330]  Paxson, V., Almes, G., Mahdavi, J., and M. Mathis,
>               "Framework for IP Performance Metrics", RFC 2330, May
>               1998.
>
>    [RFC4148]  Stephan, E., "IP Performance Metrics (IPPM) Metrics
>               Registry", BCP 108, RFC 4148, August 2005.
>
>    [RFC5226]  Narten, T. and H. Alvestrand, "Guidelines for Writing an
>               IANA Considerations Section in RFCs", BCP 26, RFC 5226,
>               May 2008.
>
>    [RFC6248]  Morton, A., "RFC 4148 and the IP Performance Metrics
>               (IPPM) Registry of Metrics Are Obsolete", RFC 6248, April
>               2011.
>
>    [RFC6390]  Clark, A. and B. Claise, "Guidelines for Considering New
>               Performance Metric Development", BCP 170, RFC 6390,
>               October 2011.
>
>    [RFC6576]  Geib, R., Morton, A., Fardid, R., and A. Steinmitz, "IP
>               Performance Metrics (IPPM) Standard Advancement Testing",
>               BCP 176, RFC 6576, March 2012.
>
>    [RFC3986]  Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform
>               Resource Identifier (URI): Generic Syntax", STD 66, RFC
>               3986, January 2005.
>
>    [RFC2141]  Moats, R., "URN Syntax", RFC 2141, May 1997.
>
>
>
>
>
>
>
>
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>
> 13.2.  Informative References
>
>    [RFC3611]  Friedman, T., Caceres, R., and A. Clark, "RTP Control
>               Protocol Extended Reports (RTCP XR)", RFC 3611, November
>               2003.
>
>    [RFC3550]  Schulzrinne, H., Casner, S., Frederick, R., and V.
>               Jacobson, "RTP: A Transport Protocol for Real-Time
>               Applications", STD 64, RFC 3550, July 2003.
>
>    [RFC6035]  Pendleton, A., Clark, A., Johnston, A., and H. Sinnreich,
>               "Session Initiation Protocol Event Package for Voice
>               Quality Reporting", RFC 6035, November 2010.
>
>    [I-D.ietf-lmap-framework]
>               Eardley, P., Morton, A., Bagnulo, M., Burbridge, T.,
>               Aitken, P., and A. Akhter, "A framework for large-scale
>               measurement platforms (LMAP)", draft-ietf-lmap-
>               framework-08 (work in progress), August 2014.
>
>    [RFC5477]  Dietz, T., Claise, B., Aitken, P., Dressler, F., and G.
>               Carle, "Information Model for Packet Sampling Exports",
>               RFC 5477, March 2009.
>
>    [RFC5102]  Quittek, J., Bryant, S., Claise, B., Aitken, P., and J.
>               Meyer, "Information Model for IP Flow Information Export",
>               RFC 5102, January 2008.
>
>    [RFC6792]  Wu, Q., Hunt, G., and P. Arden, "Guidelines for Use of the
>               RTP Monitoring Framework", RFC 6792, November 2012.
>
>    [RFC5905]  Mills, D., Martin, J., Burbank, J., and W. Kasch, "Network
>               Time Protocol Version 4: Protocol and Algorithms
>               Specification", RFC 5905, June 2010.
>
>    [RFC3393]  Demichelis, C. and P. Chimento, "IP Packet Delay Variation
>               Metric for IP Performance Metrics (IPPM)", RFC 3393,
>               November 2002.
>
>    [RFC6776]  Clark, A. and Q. Wu, "Measurement Identity and Information
>               Reporting Using a Source Description (SDES) Item and an
>               RTCP Extended Report (XR) Block", RFC 6776, October 2012.
>
>    [RFC7003]  Clark, A., Huang, R., and Q. Wu, "RTP Control Protocol
>               (RTCP) Extended Report (XR) Block for Burst/Gap Discard
>               Metric Reporting", RFC 7003, September 2013.
>
>
>
>
>
> Bagnulo, et al.          Expires March 14, 2015 [Page 24]
> 
> Internet-Draft      Registry for Performance Metrics September 2014
>
>
>    [RFC3432]  Raisanen, V., Grotefeld, G., and A. Morton, "Network
>               performance measurement with periodic streams", RFC 3432,
>               November 2002.
>
>    [RFC4566]  Handley, M., Jacobson, V., and C. Perkins, "SDP: Session
>               Description Protocol", RFC 4566, July 2006.
>
>    [RFC5481]  Morton, A. and B. Claise, "Packet Delay Variation
>               Applicability Statement", RFC 5481, March 2009.
>
> Authors' Addresses
>
>    Marcelo Bagnulo
>    Universidad Carlos III de Madrid
>    Av. Universidad 30
>    Leganes, Madrid  28911
>    SPAIN
>
>    Phone: 34 91 6249500
>    Email: marcelo@it.uc3m.es
>    URI:   http://www.it.uc3m.es
>
>
>    Benoit Claise
>    Cisco Systems, Inc.
>    De Kleetlaan 6a b1
>    1831 Diegem
>    Belgium
>
>    Email: bclaise@cisco.com
>
>
>    Philip Eardley
>    BT
>    Adastral Park, Martlesham Heath
>    Ipswich
>    ENGLAND
>
>    Email: philip.eardley@bt.com
>
>
>    Al Morton
>    AT&T Labs
>    200 Laurel Avenue South
>    Middletown, NJ
>    USA
>
>    Email: acmorton@att.com
>
>
>
> Bagnulo, et al.          Expires March 14, 2015 [Page 25]
> 
> Internet-Draft      Registry for Performance Metrics September 2014
>
>
>    Aamer Akhter
>    Cisco Systems, Inc.
>    7025 Kit Creek Road
>    RTP, NC 27709
>    USA
>
>    Email: aakhter@cisco.com
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> .
>


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    <div class="moz-cite-prefix">Dear all,<br>
      <br>
      Here is my review of draft-ietf-ippm-metric-registry-01.<br>
      Sent to IPPM to generate some discussions.<br>
    </div>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">Network
      Working Group&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; M. Bagnulo
      <br>
      Internet-Draft&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      UC3M
      <br>
      Intended status: Best Current Practice&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; B.
      Claise
      <br>
      Expires: March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cisco
      Systems, Inc.
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; P.
      Eardley
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      BT
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A.
      Morton
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      AT&amp;T Labs
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A.
      Akhter
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cisco
      Systems, Inc.
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; September
      10, 2014
      <br>
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Registry for Performance Metrics
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; draft-ietf-ippm-metric-registry-01
      <br>
      <br>
      Abstract
      <br>
      <br>
      &nbsp;&nbsp; This document defines the IANA Registry for Performance
      Metrics.
      <br>
      &nbsp;&nbsp; This document also gives a set of guidelines for Registered
      <br>
      &nbsp;&nbsp; Performance Metric requesters and reviewers.
      <br>
      <br>
      Status of This Memo
      <br>
      <br>
      &nbsp;&nbsp; This Internet-Draft is submitted in full conformance with the
      <br>
      &nbsp;&nbsp; provisions of BCP 78 and BCP 79.
      <br>
      <br>
      &nbsp;&nbsp; Internet-Drafts are working documents of the Internet
      Engineering
      <br>
      &nbsp;&nbsp; Task Force (IETF).&nbsp; Note that other groups may also distribute
      <br>
      &nbsp;&nbsp; working documents as Internet-Drafts.&nbsp; The list of current
      Internet-
      <br>
      &nbsp;&nbsp; Drafts is at <a class="moz-txt-link-freetext" href="http://datatracker.ietf.org/drafts/current/">http://datatracker.ietf.org/drafts/current/</a>.
      <br>
      <br>
      &nbsp;&nbsp; Internet-Drafts are draft documents valid for a maximum of six
      months
      <br>
      &nbsp;&nbsp; and may be updated, replaced, or obsoleted by other documents
      at any
      <br>
      &nbsp;&nbsp; time.&nbsp; It is inappropriate to use Internet-Drafts as reference
      <br>
      &nbsp;&nbsp; material or to cite them other than as "work in progress."
      <br>
      <br>
      &nbsp;&nbsp; This Internet-Draft will expire on March 14, 2015.
      <br>
      <br>
      Copyright Notice
      <br>
      <br>
      &nbsp;&nbsp; Copyright (c) 2014 IETF Trust and the persons identified as the
      <br>
      &nbsp;&nbsp; document authors.&nbsp; All rights reserved.
      <br>
      <br>
      &nbsp;&nbsp; This document is subject to BCP 78 and the IETF Trust's Legal
      <br>
      &nbsp;&nbsp; Provisions Relating to IETF Documents
      <br>
      &nbsp;&nbsp; (<a class="moz-txt-link-freetext" href="http://trustee.ietf.org/license-info">http://trustee.ietf.org/license-info</a>) in effect on the date of
      <br>
      &nbsp;&nbsp; publication of this document.&nbsp; Please review these documents
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      [Page 1]
      <br>
      
      <br>
      Internet-Draft&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Registry for Performance Metrics&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      September 2014
      <br>
      <br>
      <br>
      &nbsp;&nbsp; carefully, as they describe your rights and restrictions with
      respect
      <br>
      &nbsp;&nbsp; to this document.&nbsp; Code Components extracted from this document
      must
      <br>
      &nbsp;&nbsp; include Simplified BSD License text as described in Section 4.e
      of
      <br>
      &nbsp;&nbsp; the Trust Legal Provisions and are provided without warranty as
      <br>
      &nbsp;&nbsp; described in the Simplified BSD License.
      <br>
      <br>
      Table of Contents
      <br>
      <br>
      &nbsp;&nbsp; 1.&nbsp; Open Issues . . . . . . . . . . . . . . . . . . . . . . . .
      .&nbsp;&nbsp; 3
      <br>
      &nbsp;&nbsp; 2.&nbsp; Introduction&nbsp; . . . . . . . . . . . . . . . . . . . . . . .
      .&nbsp;&nbsp; 4
      <br>
      &nbsp;&nbsp; 3.&nbsp; Terminology . . . . . . . . . . . . . . . . . . . . . . . .
      .&nbsp;&nbsp; 5
      <br>
      &nbsp;&nbsp; 4.&nbsp; Scope . . . . . . . . . . . . . . . . . . . . . . . . . . .
      .&nbsp;&nbsp; 6
      <br>
      &nbsp;&nbsp; 5.&nbsp; Design Considerations for the Registry and Registered
      Metrics&nbsp;&nbsp; 7
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 5.1.&nbsp; Interoperability&nbsp; . . . . . . . . . . . . . . . . . . .
      .&nbsp;&nbsp; 7
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 5.2.&nbsp; Criteria for Registered Performance Metrics . . . . . .
      .&nbsp;&nbsp; 8
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 5.3.&nbsp; Single point of reference for Performance metrics . . .
      .&nbsp;&nbsp; 8
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 5.4.&nbsp; Side benefits . . . . . . . . . . . . . . . . . . . . .
      .&nbsp;&nbsp; 9
      <br>
      &nbsp;&nbsp; 6.&nbsp; Performance Metric Registry: Prior attempt&nbsp; . . . . . . . .
      .&nbsp;&nbsp; 9
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 6.1.&nbsp; Why this Attempt Will Succeed?&nbsp; . . . . . . . . . . . .
      .&nbsp; 10
      <br>
      &nbsp;&nbsp; 7.&nbsp; Defintion of the Performance Metric Registry&nbsp; . . . . . . .
      .&nbsp; 10
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 7.1.&nbsp; Summary Category&nbsp; . . . . . . . . . . . . . . . . . . .
      .&nbsp; 12
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.1.1.&nbsp; Identifier&nbsp; . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 12
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.1.2.&nbsp; Name&nbsp; . . . . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 13
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.1.3.&nbsp; URI . . . . . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 13
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.1.4.&nbsp; Description . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 14
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 7.2.&nbsp; Metric Definition Category&nbsp; . . . . . . . . . . . . . .
      .&nbsp; 14
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.2.1.&nbsp; Reference Definition&nbsp; . . . . . . . . . . . . . . .
      .&nbsp; 14
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.2.2.&nbsp; Fixed Parameters&nbsp; . . . . . . . . . . . . . . . . .
      .&nbsp; 14
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 7.3.&nbsp; Method of Measurement Category&nbsp; . . . . . . . . . . . .
      .&nbsp; 15
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.3.1.&nbsp; Reference Method&nbsp; . . . . . . . . . . . . . . . . .
      .&nbsp; 15
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.3.2.&nbsp; Packet Generation Stream&nbsp; . . . . . . . . . . . . .
      .&nbsp; 15
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.3.3.&nbsp; Traffic Filter&nbsp; . . . . . . . . . . . . . . . . . .
      .&nbsp; 16
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.3.4.&nbsp; Sampling distribution . . . . . . . . . . . . . . .
      .&nbsp; 16
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.3.5.&nbsp; Run-time Parameters . . . . . . . . . . . . . . . .
      .&nbsp; 16
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.3.6.&nbsp; Role&nbsp; . . . . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 17
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 7.4.&nbsp; Output Category . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 17
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.4.1.&nbsp; Value . . . . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 17
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.4.2.&nbsp; Data Format . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 17
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.4.3.&nbsp; Reference . . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 18
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.4.4.&nbsp; Metric Units&nbsp; . . . . . . . . . . . . . . . . . . .
      .&nbsp; 18
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 7.5.&nbsp; Admisnitratvie information&nbsp; . . . . . . . . . . . . . .
      .&nbsp; 18
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.5.1.&nbsp; Status&nbsp; . . . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 18
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.5.2.&nbsp; Requester . . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 18
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.5.3.&nbsp; Revision&nbsp; . . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 18
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7.5.4.&nbsp; Revision Date . . . . . . . . . . . . . . . . . . .
      .&nbsp; 18
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 7.6.&nbsp; Comments and Remarks&nbsp; . . . . . . . . . . . . . . . . .
      .&nbsp; 18
      <br>
      &nbsp;&nbsp; 8.&nbsp; The Life-Cycle of Registered Metrics&nbsp; . . . . . . . . . . .
      .&nbsp; 19
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 8.1.&nbsp; Adding new Performance Metrics to the Registry&nbsp; . . . .
      .&nbsp; 19
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      [Page 2]
      <br>
      
      <br>
      Internet-Draft&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Registry for Performance Metrics&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      September 2014
      <br>
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 8.2.&nbsp; Revising Registered Performance Metrics . . . . . . . .
      .&nbsp; 20
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 8.3.&nbsp; Deprecating Registered Performance Metrics&nbsp; . . . . . .
      .&nbsp; 21
      <br>
      &nbsp;&nbsp; 9.&nbsp; Performance Metric Registry and other Registries&nbsp; . . . . .
      .&nbsp; 22
      <br>
      &nbsp;&nbsp; 10. Security considerations . . . . . . . . . . . . . . . . . .
      .&nbsp; 22
      <br>
      &nbsp;&nbsp; 11. IANA Considerations . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 22
      <br>
      &nbsp;&nbsp; 12. Acknowledgments . . . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 23
      <br>
      &nbsp;&nbsp; 13. References&nbsp; . . . . . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 23
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 13.1.&nbsp; Normative References . . . . . . . . . . . . . . . . .
      .&nbsp; 23
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp; 13.2.&nbsp; Informative References . . . . . . . . . . . . . . . .
      .&nbsp; 24
      <br>
      &nbsp;&nbsp; Authors' Addresses&nbsp; . . . . . . . . . . . . . . . . . . . . . .
      .&nbsp; 25
      <br>
      <br>
      1.&nbsp; Open Issues
      <br>
      <br>
      &nbsp;&nbsp; 1.&nbsp; Many aspects of the Naming convention are TBD, and need
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; discussion.&nbsp; For example, we have distinguished RTCP-XR
      metrics
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; as End-Point (neither active nor passive in the traditional
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sense, so not Act_ or Pas_).&nbsp; Even though we may not cast
      all
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; naming conventions in stone at the start, it will be
      helpful to
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; look at several examples of passive metric names now.
      <br>
      <br>
      &nbsp;&nbsp; 2.&nbsp; We should expand on the different roles and
      responsibilities of
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; the Performance Metrics Experts versus the Performance
      Metric
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Directorate.&nbsp; At least, the Performance Metric Directorate
      one
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; should be expanded. --- (v7) If these are different
      entities, our
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; only concern is the role of the "PM Experts".
      <br>
    </blockquote>
    I would in favor or removing the Performance Metric Directorate.<br>
    The directorates are for the benefit of the AD.<br>
    From RFC 2418 and <a class="moz-txt-link-freetext" href="http://www.ietf.org/iesg/directorate.html">http://www.ietf.org/iesg/directorate.html</a><br>
    <pre class="newpage">   A request for Revision is ONLY permissible when the changes maintain
   backward-compatibility with implementations of the prior Registry
   entry describing a Registered Metric (entries with lower revision
   numbers, but the same Identifier and Name).</pre>
    Also, the directorate live and goal might change along the time. So
    specify the directorate goal is in stone in a RFC is not
    appropriate.<br>
    However, a sentence such as: at the time of writing this line, a
    performance metric directorate exists, which can help ....<br>
    <br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; 3.&nbsp; Revised Registry Entries: Keep for history (deprecated) or
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Delete?
      <br>
    </blockquote>
    We should delete.<br>
    See in line<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; 4.&nbsp; Need to include an example for a name for a passive metric
      <br>
      <br>
      &nbsp;&nbsp; 5.&nbsp; Definition of Parameter needs more work?
      <br>
      <br>
      &nbsp;&nbsp; 6.&nbsp; Whether the name of the metric should contain the version
      of the
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; metric
      <br>
    </blockquote>
    No. Because we have a new performance metric revision, and it must
    be interoperable.<br>
    <br>
    <br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; 7.&nbsp; reserve some values for examples and private use?
      <br>
      <br>
      &nbsp;&nbsp; 8.&nbsp; should we define a "type" column with the possible values
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "active" "passive" "hybrid" "endpoint"? if we go for all 4
      of
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; them, we should define the corresponding prefixes for the
      metric
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; name (at this point only the pas and act are defined)
      <br>
      <br>
      &nbsp;&nbsp; 9.&nbsp; URL: should we include a URL link in each registry entry
      with a
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; URL specific to the entry that links to a different text
      page
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; that contains all the details of the registry entry as in
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a class="moz-txt-link-freetext" href="http://www.iana.org/assignments/xml-registry/xml">http://www.iana.org/assignments/xml-registry/xml</a>-
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; registry.xhtml#ns
      <br>
      <br>
      <br>
    </blockquote>
    I don't understand which advantages this adds.<br>
    If I compare with IPFIX, which has got a similar mechanism, it's
    easier for a collector to download a single file.<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      [Page 3]
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      <br>
      <br>
      <br>
      2.&nbsp; Introduction
      <br>
      <br>
      &nbsp;&nbsp; The IETF specifies and uses Performance Metrics of protocols
      and
      <br>
      &nbsp;&nbsp; applications transported over its protocols.&nbsp; Performance
      metrics are
      <br>
      &nbsp;&nbsp; such an important part of the operations of IETF protocols that
      <br>
      &nbsp;&nbsp; [RFC6390] specifies guidelines for their development.
      <br>
      <br>
      &nbsp;&nbsp; The definition and use of Performance Metrics in the IETF
      happens in
      <br>
      &nbsp;&nbsp; various working groups (WG), most notably:
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The "IP Performance Metrics" (IPPM) WG is the WG primarily
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; focusing on Performance Metrics definition at the IETF.
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The "Metric Blocks for use with RTCP's Extended Report
      Framework"
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (XRBLOCK) WG recently specified many Performance Metrics
      related
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; to "RTP Control Protocol Extended Reports (RTCP XR)"
      [RFC3611],
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; which establishes a framework to allow new information to be
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; conveyed in RTCP, supplementing the original report blocks
      defined
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in "RTP: A Transport Protocol for Real-Time Applications",
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [RFC3550].
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The "Benchmarking Methodology" WG (BMWG) defined many
      Performance
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Metrics for use in laboratory benchmarking of
      inter-networking
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; technologies.
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The "IP Flow Information eXport" (IPFIX) WG Information
      elements
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; related to Performance Metrics are currently proposed.
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The "Performance Metrics for Other Layers" (PMOL) concluded
      WG,
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; defined some Performance Metrics related to Session
      Initiation
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Protocol (SIP) voice quality [RFC6035].
      <br>
      <br>
      &nbsp;&nbsp; It is expected that more Performance Metrics will be defined in
      the
      <br>
      &nbsp;&nbsp; future, not only IP-based metrics, but also metrics which are
      <br>
      &nbsp;&nbsp; protocol-specific and application-specific.
      <br>
      <br>
      &nbsp;&nbsp; However, despite the importance of Performance Metrics, there
      are two
      <br>
      &nbsp;&nbsp; related problems for the industry.&nbsp; First, how to ensure that
      when
      <br>
      &nbsp;&nbsp; one party requests another party to measure (or report or in
      some way
      <br>
      &nbsp;&nbsp; act on) a particular Performance Metric, then both parties have
      <br>
      &nbsp;&nbsp; exactly the same understanding of what Performance Metric is
      being
      <br>
      &nbsp;&nbsp; referred to.&nbsp; Second, how to discover which Performance Metrics
      have
      <br>
      &nbsp;&nbsp; been specified, so as to avoid developing new Performance
      Metric that
      <br>
      &nbsp;&nbsp; is very similar.&nbsp; The problems can be addressed by creating a
      <br>
      &nbsp;&nbsp; registry of performance metrics.&nbsp; The usual way in which IETF
      <br>
      &nbsp;&nbsp; organizes namespaces is with Internet Assigned Numbers
      Authority
      <br>
      &nbsp;&nbsp; (IANA) registries, and there is currently no Performance
      Metrics
      <br>
      &nbsp;&nbsp; Registry maintained by the IANA.
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
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      <br>
      <br>
      <br>
      &nbsp;&nbsp; This document therefore creates a Performance Metrics
      Registry.&nbsp; It
      <br>
      &nbsp;&nbsp; also provides best practices on how to define new or updated
      entries
      <br>
      &nbsp;&nbsp; in the Performance Metrics Registry.
      <br>
    </blockquote>
    NEW:<br>
    &nbsp;&nbsp; This document therefore creates a Performance Metrics Registry.&nbsp;
    It
    <br>
    &nbsp;&nbsp; also provides best practices on how to specify new entries or
    update ones<br>
    &nbsp;&nbsp; in the Performance Metrics Registry.
    <br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      3.&nbsp; Terminology
      <br>
      <br>
      &nbsp;&nbsp; The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL
      NOT",
      <br>
      &nbsp;&nbsp; "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED",
      "MAY", and
      <br>
      &nbsp;&nbsp; "OPTIONAL" in this document are to be interpreted as described
      in
      <br>
      &nbsp;&nbsp; [RFC2119].
      <br>
      <br>
      &nbsp;&nbsp; The terms Performance Metric and Performance Metrics
      Directorate are
      <br>
      &nbsp;&nbsp; defined in [RFC6390], and copied over in this document for the
      <br>
      &nbsp;&nbsp; readers convenience.
      <br>
      <br>
      &nbsp;&nbsp; Performance Metric:&nbsp; A Performance Metric is a quantitative
      measure
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; of performance, specific to an IETF-specified protocol or
      specific
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; to an application transported over an IETF-specified
      protocol.
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Examples of Performance Metrics are the FTP response time
      for a
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; complete file download, the DNS response time to resolve the
      IP
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; address, a database logging time, etc.
      <br>
      <br>
      &nbsp;&nbsp; Registered Performance Metric:&nbsp; A Registered Performance Metric
      (or
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Registered Metric) is a Performance Metric expressed as an
      entry
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the Performance Metric Registry, and comprised of a
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specifically named metric which has met all the registry
      review
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; criteria, is under the curation of IETF Performance Metrics
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Experts, and whose changes are controlled by IANA.
      <br>
    </blockquote>
    I don't understand why"and comprised of a
    specifically named metric which has met all the registry review
    criteria," is needed. Candidate to remove<br>
    "and whose changes are controlled by IANA". It seems to imply that
    Registered Performance Metric change is normal. Not really.<br>
    "is under the curation of IETF Performance Metrics
    Experts". The Performance Metrics Experts are the experts IANA calls
    for entry validation.<br>
    <br>
    NEW:<br>
    &nbsp; Registered Performance Metric:&nbsp; A Registered Performance Metric
    (or
    <br>
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Registered Metric) is a Performance Metric expressed as an
    entry
    <br>
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the Performance Metric Registry, administered by IANA.<br>
    <br>
    <br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; Performance Metrics Registry:&nbsp; The IANA registry containing
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Registered Performance Metrics.&nbsp; In this document, it is
      also
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; called simply "Registry".
      <br>
      <br>
      &nbsp;&nbsp; Proprietary Registry:&nbsp; A set of metrics that are registered in
      a
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; proprietary registry, as opposed to Performance Metrics
      Registry.
      <br>
      <br>
      &nbsp;&nbsp; Performance Metrics Experts:&nbsp; The Performance Metrics Experts
      is a
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; group of experts selected by the IESG to validate the
      Performance
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Metrics before updating the Performance Metrics Registry.&nbsp;
      The
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Performance Metrics Experts work closely with IANA.
      <br>
      <br>
      &nbsp;&nbsp; Performance Metrics Directorate:&nbsp; The Performance Metrics
      Directorate
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; is a directorate that provides guidance for Performance
      Metrics
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; development in the IETF.&nbsp; The Performance Metrics
      Directorate
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; should be composed of experts in the performance community,
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; potentially selected from the IP Performance Metrics (IPPM),
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Benchmarking Methodology (BMWG), and Performance Metrics for
      Other
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Layers (PMOL) WGs.
      <br>
    </blockquote>
    PMOL doesn't exist any longer. So the last sentence is difficult to
    fulfill.<br>
    At some point in time, the other WGs will not exist any longer.<br>
    <br>
    NEW:<br>
    &nbsp; &nbsp; &nbsp; Performance Metrics Directorate:&nbsp; The Performance Metrics
    Directorate
    <br>
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; is a directorate that provides guidance for Performance
    Metrics
    <br>
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; development in the IETF.&nbsp; <br>
    <br>
    The following sentence (NEW) should not be part of the definition,
    but be part of a subsequent performance metrics directorate
    paragraph (note: if we keep it in the draft)<br>
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The Performance Metrics Directorate
    <br>
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; should be composed of experts in the performance community,
    <br>
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; potentially selected from the IP Performance Metrics (IPPM),
    <br>
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Benchmarking Methodology (BMWG), and the closed Performance
    Metrics for Other
    <br>
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Layers (PMOL) WGs, or any future performance-related WGs.<br>
    <br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
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      <br>
      <br>
      <br>
      &nbsp;&nbsp; Parameter:&nbsp; An input factor defined as a variable in the
      definition
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; of a metric.&nbsp; A numerical or other specified factor forming
      one of
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; a set that defines a metric or sets the conditions of its
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; operation.&nbsp; All Input Parameters must be known to measure
      using a
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; metric and interpret the results.&nbsp; Although Input Parameters
      do
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; not change the fundamental nature of the metric's
      definition, some
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; have substantial influence on the network property being
      assessed
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and interpretation of the results.
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Consider the case of packet loss in the following two
      cases.
      <br>
    </blockquote>
    NEW:<br>
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Consider the case of packet loss in the following two
    Active Measurement Method cases.
    <br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      The first case is packet loss as background loss where the
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; parameter set includes a very sparse Poisson stream, and
      only
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; characterizes the times when packets were lost.&nbsp; Actual
      user
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; streams likely see much higher loss at these times, due
      to tail
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; drop or radio errors.&nbsp; The second case is packet loss as
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inverse of Throughput where the parameter set includes a
      very
      <br>
    </blockquote>
    throughput<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      dense, bursty stream, and characterizes the loss experienced by
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; a stream that approximates a user stream.&nbsp; These are both
      "loss
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; metrics", but the difference in interpretation of the
      results
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; is highly dependent on the Parameters (at least), to the
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; extreme where we are actually using loss to infer its
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; compliment: delivered throughput.
      <br>
      <br>
      &nbsp;&nbsp; Active Measurement Method:&nbsp; Methods of Measurement conducted on
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; traffic which serves only the purpose of measurement and is
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; generated for that reason alone, and whose traffic
      characteristics
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; are known a priori.&nbsp; An Internet user's host can generate
      active
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; measurement traffic (virtually all typical user-generated
      traffic
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; is not dedicated to active measurement, but it can produce
      such
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; traffic with the necessary application operating).
      <br>
    </blockquote>
    Not sure what the previous sentence adds to the definition.<br>
    I would add some examples. OWAMP, TWAMP, IP SLA<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; Passive Measurement Method:&nbsp; Methods of Measurement conducted
      on
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; network traffic, generated either from the end users or from
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; network elements.&nbsp; </blockquote>
    "generated" in the previous sentence is wrong<br>
    Maybe <br>
    Passive Measurement Method:&nbsp; Methods of Measurement conducted on
    <br>
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; network traffic, issue either by the end users or by <br>
    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; network elements, as opposed to active traffic (see Active
    Measurement method)<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">One
      characteristic of Passive Measurement
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Methods is that sensitive information may be observed, and
      as a
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; consequence, stored in the measurement system.
      <br>
    </blockquote>
    I would add some examples. IPFIX, PSAMP. [RFC 5470], [RFC 5476]<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; Hybrid Measurement Method:&nbsp; Methods of Measurement which use a
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; combination of Active Measurement and Passive Measurement
      methods.
      <br>
      <br>
      4.&nbsp; Scope
      <br>
      <br>
      &nbsp;&nbsp; The intended audience of this document includes those who
      prepare and
      <br>
      &nbsp;&nbsp; submit a request for a Registered Performance Metric, and for
      the
      <br>
      &nbsp;&nbsp; Performance Metric Experts who review a request.
      <br>
    </blockquote>
    The above should be improved.<br>
    A good example is <a class="moz-txt-link-freetext" href="http://tools.ietf.org/html/rfc7013#section-1.1">http://tools.ietf.org/html/rfc7013#section-1.1</a>.<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; This document specifies a Performance Metrics Registry in
      IANA.&nbsp; This
      <br>
      &nbsp;&nbsp; Performance Metric Registry is applicable to Performance
      Metrics
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
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      <br>
      <br>
      <br>
      &nbsp;&nbsp; issued from Active Measurement, Passive Measurement, from
      end-point
      <br>
      &nbsp;&nbsp; calculation or any other form of Performance Metric.&nbsp; This
      registry
      <br>
      &nbsp;&nbsp; is designed to encompass Performance Metrics developed
      throughout the
      <br>
      &nbsp;&nbsp; IETF and especially for the following existing working groups:
      IPPM,
      <br>
      &nbsp;&nbsp; XRBLOCK, IPFIX, and BMWG.&nbsp; This document analyzes an prior
      attempt to
      <br>
      &nbsp;&nbsp; set up a Performance Metric Registry, and the reasons why this
      design
      <br>
      &nbsp;&nbsp; was inadequate [RFC6248].&nbsp; Finally, this document gives a set
      of
      <br>
      &nbsp;&nbsp; guidelines for requesters and expert reviewers of candidate
      <br>
      &nbsp;&nbsp; Registered Performance Metrics.
      <br>
      <br>
      &nbsp;&nbsp; This document makes no attempt to populate the Registry with
      initial
      <br>
      &nbsp;&nbsp; entries.&nbsp; It does provides a few examples that are merely
      <br>
      &nbsp;&nbsp; illustrations and should not be included in the registry at
      this
      <br>
      &nbsp;&nbsp; point in time.
      <br>
      <br>
      &nbsp;&nbsp; Based on [RFC5226] Section 4.3, this document is processed as
      Best
      <br>
      &nbsp;&nbsp; Current Practice (BCP) [RFC2026].
      <br>
      <br>
      5.&nbsp; Design Considerations for the Registry and Registered Metrics
      <br>
    </blockquote>
    The title is confusing: it seems that you treat both the Registry
    and the Registered Metrics in the section.<br>
    Let me propose<br>
    &nbsp;&nbsp;&nbsp; 5.&nbsp; Motivation for a Performance Metrics Registry<br>
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; 5.1 Interoperability<br>
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; 5.2 Single point of reference for performance metrics<br>
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; note: this is the actual content of 5.3<br>
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; 5.3 Side Benefits<br>
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; note: this is the actual content of 5.4<br>
    &nbsp;&nbsp;&nbsp; 6. Criteria for Performance Metrics Registration<br>
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; note: this is the actual content of 5.2<br>
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; note2: the title has been slightly changed compared
    to 5.2<br>
    <br>
    <br>
    I believe it's close to the content.<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; In this section, we detail several design considerations that
      are
      <br>
      &nbsp;&nbsp; relevant for understanding the motivations and expected use of
      the
      <br>
      &nbsp;&nbsp; Performance Metric Registry.
      <br>
      <br>
      5.1.&nbsp; Interoperability
      <br>
      <br>
      &nbsp;&nbsp; As any IETF registry, the primary use for a registry is to
      manage a
      <br>
      &nbsp;&nbsp; namespace for its use within one or more protocols.&nbsp; In this
      <br>
      &nbsp;&nbsp; particular case of the Performance Metric Registry, there are
      two
      <br>
      &nbsp;&nbsp; types of protocols that will use the values defined in the
      Registry
      <br>
      &nbsp;&nbsp; for their operation:
      <br>
    </blockquote>
    NEW:<br>
    &nbsp;&nbsp; As any IETF registry, the primary use for a registry is to manage
    a
    <br>
    &nbsp;&nbsp; namespace for its use within one or more protocols.&nbsp; In this
    <br>
    &nbsp;&nbsp; particular case of the Performance Metric Registry, there are two
    <br>
    &nbsp;&nbsp; types of protocols that will use the <u>Performance Metrics</u>
    defined in the Registry
    <br>
    &nbsp;&nbsp; for their operation:
    <br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; o&nbsp; Control protocol: this type of protocols is used to allow
      one
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; entity to request another entity to perform a measurement
      using a
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; specific metric defined by the Registry.&nbsp; One particular
      example
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; is the LMAP framework [I-D.ietf-lmap-framework].&nbsp; Using the
      LMAP
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; terminology, the Registry is used in the LMAP Control
      protocol to
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; allow a Controller to request a measurement task to one or
      more
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Measurement Agents.&nbsp; In order to enable this use case, the
      entries
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; of the Performance Metric Registry must be well enough
      defined to
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; allow a Measurement Agent implementation to trigger a
      specific
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; measurement task upon the reception of a control protocol
      message.
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; This requirements heavily constrains the type of entries
      that are
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; acceptable for the Performance Metric Registry.
      <br>
      <br>
      &nbsp;&nbsp; o&nbsp; Report protocol: This type of protocols is used to allow an
      entity
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; to report measurement results to another entity.&nbsp; By
      referencing
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; to a specific Performance Metric Registry, it is possible to
      <br>
      <br>
      <br>
      <br>
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      <br>
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; properly characterize the measurement result data being
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; transferred.&nbsp; Using the LMAP terminology, the Registry is
      used in
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; the Report protocol to allow a Measurement Agent to report
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; measurement results to a Collector.
      <br>
      <br>
      5.2.&nbsp; Criteria for Registered Performance Metrics
      <br>
    </blockquote>
    NEW: 5.2.&nbsp; Criteria for Performance Metrics Registration<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; It is neither possible nor desirable to populate the Registry
      with
      <br>
      &nbsp;&nbsp; all combinations of input parameters of all Performance
      Metrics.&nbsp; The
      <br>
      &nbsp;&nbsp; Registered Performance Metrics should be:
      <br>
      <br>
      &nbsp;&nbsp; 1.&nbsp; interpretable by the user.
      <br>
      <br>
      &nbsp;&nbsp; 2.&nbsp; implementable by the software designer,
      <br>
      <br>
      &nbsp;&nbsp; 3.&nbsp; deployable by network operators, without major impact on
      the
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; networks,
      <br>
      <br>
      &nbsp;&nbsp; 4.&nbsp; accurate, for interoperability and deployment across
      vendors,
      <br>
      <br>
      &nbsp;&nbsp; 5.&nbsp; Operational useful, so that it has significant industry
      interest
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and/or has seen deployment,
      <br>
      <br>
      &nbsp;&nbsp; 6.&nbsp; Sufficiently tightly defined, so that changing Parameters
      does
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; not change the fundamental nature of the measurement, nor
      change
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; the practicality of its implementation.
      <br>
      <br>
      &nbsp;&nbsp; In essence, there needs to be evidence that a candidate
      Registry
      <br>
      &nbsp;&nbsp; entry has significant industry interest, or has seen
      deployment, and
      <br>
      &nbsp;&nbsp; there is agreement that the candidate Registered Metric serves
      its
      <br>
      &nbsp;&nbsp; intended purpose.
      <br>
      <br>
      5.3.&nbsp; Single point of reference for Performance metrics
      <br>
    </blockquote>
    metrics -&gt; Metrics<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; A Registry for Performance metrics serves as a single point of
      <br>
    </blockquote>
    metrics -&gt; Metrics<br>
    Maybe more instance. Please check throughout the draft<br>
    <br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">&nbsp;&nbsp;
      reference for Performance Metrics defined in different working
      groups
      <br>
      &nbsp;&nbsp; in the IETF.&nbsp; As we mentioned earlier, there are several WGs
      that
      <br>
      &nbsp;&nbsp; define Performance Metrics in the IETF and it is hard to keep
      track
      <br>
      &nbsp;&nbsp; of all them.&nbsp; This results in multiple definitions of similar
      metrics
      <br>
      &nbsp;&nbsp; that attempt to measure the same phenomena but in slightly
      different
      <br>
      &nbsp;&nbsp; (and incompatible) ways.&nbsp; Having a Registry would allow both
      the IETF
      <br>
      &nbsp;&nbsp; community and external people to have a single list of relevant
      <br>
      &nbsp;&nbsp; Performance Metrics defined by the IETF (and others, where
      <br>
      &nbsp;&nbsp; appropriate).&nbsp; The single list is also an essential aspect of
      <br>
      &nbsp;&nbsp; communication about metrics, where different entities that
      request
      <br>
      &nbsp;&nbsp; measurements, execute measurements, and report the results can
      <br>
      &nbsp;&nbsp; benefit from a common understanding of the referenced metric.
      <br>
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
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      <br>
      <br>
      5.4.&nbsp; Side benefits
      <br>
      <br>
      &nbsp;&nbsp; There are a couple of side benefits of having such a Registry.
      <br>
      &nbsp;&nbsp; First, the Registry could serve as an inventory of useful and
      used
      <br>
      &nbsp;&nbsp; metrics, that are normally supported by different
      implementations of
      <br>
      &nbsp;&nbsp; measurement agents.&nbsp; Second, the results of the metrics would
      be
      <br>
      &nbsp;&nbsp; comparable even if they are performed by different
      implementations
      <br>
      &nbsp;&nbsp; and in different networks, as the metric is properly defined.&nbsp;
      BCP
      <br>
      &nbsp;&nbsp; 176 [RFC6576] examines whether the results produced by
      independent
      <br>
      &nbsp;&nbsp; implementations are equivalent in the context of evaluating the
      <br>
      &nbsp;&nbsp; completeness and clarity of metric specifications.&nbsp; This BCP
      defines
      <br>
      &nbsp;&nbsp; the standards track advancement testing for (active) IPPM
      metrics,
      <br>
      &nbsp;&nbsp; and the same process will likely suffice to determine whether
      <br>
      &nbsp;&nbsp; Registry entries are sufficiently well specified to result in
      <br>
      &nbsp;&nbsp; comparable (or equivalent) results.&nbsp; Registry entries which
      have
      <br>
      &nbsp;&nbsp; undergone such testing SHOULD be noted, with a reference to the
      test
      <br>
      &nbsp;&nbsp; results.
      <br>
      <br>
      6.&nbsp; Performance Metric Registry: Prior attempt
      <br>
      <br>
      &nbsp;&nbsp; There was a previous attempt to define a metric registry RFC
      4148
      <br>
      &nbsp;&nbsp; [RFC4148].&nbsp; However, it was obsoleted by RFC 6248 [RFC6248]
      because
      <br>
      &nbsp;&nbsp; it was "found to be insufficiently detailed to uniquely
      identify IPPM
      <br>
      &nbsp;&nbsp; metrics... [there was too much] variability possible when
      <br>
      &nbsp;&nbsp; characterizing a metric exactly" which led to the RFC4148
      registry
      <br>
      &nbsp;&nbsp; having "very few users, if any".
      <br>
      <br>
      &nbsp;&nbsp; A couple of interesting additional quotes from RFC 6248 might
      help
      <br>
      &nbsp;&nbsp; understand the issues related to that registry.
      <br>
      <br>
      &nbsp;&nbsp; 1.&nbsp; "It is not believed to be feasible or even useful to
      register
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; every possible combination of Type P, metric parameters,
      and
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Stream parameters using the current structure of the IPPM
      Metrics
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Registry."
      <br>
      <br>
      &nbsp;&nbsp; 2.&nbsp; "The registry structure has been found to be insufficiently
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; detailed to uniquely identify IPPM metrics."
      <br>
      <br>
      &nbsp;&nbsp; 3.&nbsp; "Despite apparent efforts to find current or even future
      users,
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; no one responded to the call for interest in the RFC 4148
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; registry during the second half of 2010."
      <br>
      <br>
      &nbsp;&nbsp; The current approach learns from this by tightly defining each
      entry
      <br>
      &nbsp;&nbsp; in the registry with only a few variable Parameters to be
      specified
      <br>
      &nbsp;&nbsp; by the measurement designer, if any.&nbsp; The idea is that entries
      in the
      <br>
      &nbsp;&nbsp; Registry represent different measurement methods which require
      input
      <br>
    </blockquote>
    represent -&gt; stem from<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">&nbsp;&nbsp;
      parameters to set factors like source and destination addresses
      <br>
      &nbsp;&nbsp; (which do not change the fundamental nature of the
      measurement).&nbsp; The
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
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      <br>
      <br>
      <br>
      &nbsp;&nbsp; downside of this approach is that it could result in a large
      number
      <br>
      &nbsp;&nbsp; of entries in the Registry.&nbsp; We believe that less is more in
      this
      <br>
      &nbsp;&nbsp; context - it is better to have a reduced set of useful metrics
      rather
      <br>
      &nbsp;&nbsp; than a large set of metrics with questionable usefulness.&nbsp;
      Therefore
      <br>
      &nbsp;&nbsp; this document defines that the Registry only includes metrics
      that
      <br>
      &nbsp;&nbsp; are well defined and that have proven to be operationally
      useful.&nbsp; In
      <br>
      &nbsp;&nbsp; order to guarantee these two characteristics we require that a
      set of
      <br>
      &nbsp;&nbsp; experts review the allocation request to verify that the metric
      is
      <br>
      &nbsp;&nbsp; well defined and it is operationally useful.
      <br>
      <br>
      6.1.&nbsp; Why this Attempt Will Succeed?
      <br>
      <br>
      &nbsp;&nbsp; The Registry defined in this document addresses the main issues
      <br>
      &nbsp;&nbsp; identified in the previous attempt.&nbsp; As we mention in the
      previous
      <br>
      &nbsp;&nbsp; section, one of the main issues with the previous registry was
      that
      <br>
      &nbsp;&nbsp; the metrics contained in the registry were too generic to be
      useful.
      <br>
      &nbsp;&nbsp; In this Registry, the Registry requests are evaluated by an
      expert
      <br>
      &nbsp;&nbsp; group, the Performance Metrics Experts, who will make sure that
      the
      <br>
      &nbsp;&nbsp; metric is properly defined.&nbsp; This document provides guidelines
      to
      <br>
      &nbsp;&nbsp; assess if a metric is properly defined.
      <br>
      <br>
      &nbsp;&nbsp; Another key difference between this attempt and the previous
      one is
      <br>
      &nbsp;&nbsp; that in this case there is at least one clear user for the
      Registry:
      <br>
      &nbsp;&nbsp; the LMAP framework and protocol.&nbsp; Because the LMAP protocol
      will use
      <br>
      &nbsp;&nbsp; the Registry values in its operation, this actually helps to
      <br>
      &nbsp;&nbsp; determine if a metric is properly defined.&nbsp; In particular,
      since we
      <br>
      &nbsp;&nbsp; expect that the LMAP control protocol will enable a controller
      to
      <br>
      &nbsp;&nbsp; request a measurement agent to perform a measurement using a
      given
      <br>
      &nbsp;&nbsp; metric by embedding the Performance Metric Registry value in
      the
      <br>
      &nbsp;&nbsp; protocol, a metric is properly specified if it is defined
      well-enough
      <br>
      &nbsp;&nbsp; so that it is possible (and practical) to implement the metric
      in the
      <br>
      &nbsp;&nbsp; measurement agent.&nbsp; This was clearly not the case for the
      previous
      <br>
      &nbsp;&nbsp; attempt: defining a metric with an undefined P-Type makes its
      <br>
      &nbsp;&nbsp; implementation unpractical.
      <br>
    </blockquote>
    P-Type is really IPPM specific, while the registry is not IPPM
    specific.<br>
    Either you should really explain this concept or remove.<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      7.&nbsp; Defintion of the Performance Metric Registry
      <br>
      <br>
      &nbsp;&nbsp; In this section we define the columns of the Performance Metric
      <br>
      &nbsp;&nbsp; Registry.&nbsp; This registry will contain all Registered
      Performance
      <br>
      &nbsp;&nbsp; Metrics including active, passive, hybrid, endpoint metrics and
      any
      <br>
      &nbsp;&nbsp; other type of performance metric that can be envisioned.&nbsp;
      Because of
      <br>
      &nbsp;&nbsp; that, it may be the case that some of the columns defined are
      not
      <br>
      &nbsp;&nbsp; applicable for a given type of metric.&nbsp; If this is the case,
      the
      <br>
      &nbsp;&nbsp; column(s) SHOULD be populated with the "NA" value (Non
      Applicable).
      <br>
      &nbsp;&nbsp; However, the "NA" value MUST NOT be used any any metric in the
      <br>
    </blockquote>
    any any -&gt; by any<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">&nbsp;&nbsp;
      following columns: Identifier, Name, URI, Status, Requester,
      <br>
      &nbsp;&nbsp; Revision, Revision Date, Description and Reference
      Specification.
      <br>
      &nbsp;&nbsp; Moreover, In addition, it may be possible that in the future, a
      new
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
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      <br>
      <br>
      <br>
      &nbsp;&nbsp; type of metric requires additional columns.&nbsp; Should that be the
      case,
      <br>
      &nbsp;&nbsp; it is possible to add new columns to the registry.&nbsp; The
      specification
      <br>
      &nbsp;&nbsp; defining the new column(s) MUST define how to populate the new
      <br>
      &nbsp;&nbsp; column(s) for existing entries.
      <br>
    </blockquote>
    MUST -&gt; must<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; The columns of the Performance Metric Registry are defined
      next.&nbsp; The
      <br>
      &nbsp;&nbsp; columns are grouped into "Categories" to facilitate the use of
      the
      <br>
      &nbsp;&nbsp; registry.&nbsp; Categories are described at the 3.x heading level,
      and
      <br>
      &nbsp;&nbsp; columns are at the 3.x.y heading level.&nbsp; The Figure below
      illustrates
      <br>
      &nbsp;&nbsp; this organization.&nbsp; An entry (row) therefore gives a complete
      <br>
      &nbsp;&nbsp; description of a Registered Metric.
      <br>
    </blockquote>
    3.x and 3.x.y are wrong<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; Each column serves as a check-list item and helps to avoid
      omissions
      <br>
      &nbsp;&nbsp; during registration and expert review.&nbsp; In some cases an entry
      (row)
      <br>
      &nbsp;&nbsp; may have some columns without specific entries, marked Not
      Applicable
      <br>
      &nbsp;&nbsp; (NA).
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
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      <br>
      <br>
      <br>
      &nbsp;Registry Categories and Columns, shown as
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Category
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      ------------------
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Column |&nbsp;
      Column |
      <br>
    </blockquote>
    Some formatting issues.<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Summary
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -------------------------------
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ID | Name | URI | Description |
      <br>
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Metric Definition
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -----------------------------------------
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reference Definition | Fixed Parameters |
      <br>
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Method of Measurement
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
---------------------------------------------------------------------------------<br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reference Method | Packet Generation | Traffic |
      Sampling&nbsp;&nbsp;&nbsp;&nbsp; | Run-time | Role |
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | Stream&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | Filter&nbsp; |
      distribution | Param&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Output
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -----------------------------------------
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | Type | Reference&nbsp; | Data&nbsp;&nbsp; | Units |
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | Definition | Format |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |
      <br>
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Administrative information
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ----------------------------------
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Status |Request | Rev | Rev.Date |
      <br>
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Comments and Remarks
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; --------------------
      <br>
      <br>
      <br>
      <br>
      7.1.&nbsp; Summary Category
      <br>
      <br>
      7.1.1.&nbsp; Identifier
      <br>
      <br>
      &nbsp;&nbsp; A numeric identifier for the Registered Performance Metric.&nbsp;
      This
      <br>
      &nbsp;&nbsp; identifier MUST be unique within the Performance Metric
      Registry.
      <br>
      <br>
      &nbsp;&nbsp; The Registered Performance Metric unique identifier is a 16-bit
      <br>
      &nbsp;&nbsp; integer (range 0 to 65535).&nbsp; When adding newly Registered
      Performance
      <br>
      &nbsp;&nbsp; Metrics to the Performance Metric Registry, IANA SHOULD assign
      the
      <br>
      &nbsp;&nbsp; lowest available identifier to the next Registered Performance
      <br>
      &nbsp;&nbsp; Metric.
      <br>
    </blockquote>
    SHOULD -&gt; should.<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      <br>
      <br>
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      <br>
      <br>
      <br>
      7.1.2.&nbsp; Name
      <br>
      <br>
      &nbsp;&nbsp; As the name of a Registered Performance Metric is the first
      thing a
      <br>
      &nbsp;&nbsp; potential implementor will use when determining whether it is
      <br>
      &nbsp;&nbsp; suitable for a given application, it is important to be as
      precise
      <br>
      &nbsp;&nbsp; and descriptive as possible.&nbsp; </blockquote>
    , while maintaining readability.<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">New
      names of Registered Performance
      <br>
      &nbsp;&nbsp; Metrics:
      <br>
      <br>
      &nbsp;&nbsp; 1.&nbsp; "MUST be chosen carefully to describe the Registered
      Performance
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Metric and the context in which it will be used."
      <br>
      <br>
      &nbsp;&nbsp; 2.&nbsp; "MUST be unique within the Performance Metric Registry."
      <br>
      <br>
      &nbsp;&nbsp; 3.&nbsp; "MUST use capital letters for the first letter of each
      component
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; . All other letters MUST be lowercase, even for acronyms.
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exceptions are made for acronyms containing a mixture of
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; lowercase and capital letters, such as 'IPv4' and 'IPv6'."
      <br>
      <br>
      &nbsp;&nbsp; 4.&nbsp; "MUST use '_' between each component composing the
      Registered
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Performance Metric name."
      <br>
      <br>
      &nbsp;&nbsp; 5.&nbsp; "MUST start with prefix Act_ for active measurement
      Registered
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Performance Metric."
      <br>
      <br>
      &nbsp;&nbsp; 6.&nbsp; "MUST start with prefix Pas_ for passive monitoring
      Registered
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Performance Metric."
      <br>
      <br>
      &nbsp;&nbsp; 7.&nbsp; Other types of metrics should define a proper prefix for
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; identifying the type.
      <br>
      <br>
      &nbsp;&nbsp; 8.&nbsp; The remaining rules for naming are left to the Performance
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Experts to determine as they gather experience, so this is
      an
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; area of planned update by a future RFC.
      <br>
    </blockquote>
    9. Should be in sync with the different values in the registry.<br>
    &nbsp;&nbsp;&nbsp; example: must contain "Pas" if the value of Reference Method
    field is passive, right?<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">&nbsp;&nbsp; An
      example is "Act_UDP_Latency_Poisson_99mean" for a active
      <br>
      &nbsp;&nbsp; monitoring UDP latency metric using a Poisson stream of packets
      and
      <br>
      &nbsp;&nbsp; producing the 99th percentile mean as output.
      <br>
      <br>
      7.1.3.&nbsp; URI
      <br>
      <br>
      &nbsp;&nbsp; The URI column MUST contain a URI [RFC 3986] that uniquely
      identified
      <br>
      &nbsp;&nbsp; the metric.&nbsp; The URI is a URN [RFC 2141].&nbsp; The URI is
      automatically
      <br>
      &nbsp;&nbsp; generated by prepending the prefix urn:ietf:params:ippm:metric:
      to
      <br>
      &nbsp;&nbsp; the metric name.&nbsp; The resulting URI is globally unique.
      <br>
    </blockquote>
    At this point, I see in the 7.X a mix of instruction for the Perf.
    Metric Experts and for IANA.<br>
    IANA: the sentence above or the last sentence in 7.1<br>
    Shouldn't we separate the instructions in IANA in the IANA
    considerations section?<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
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      <br>
      <br>
      <br>
      7.1.4.&nbsp; Description
      <br>
      <br>
      &nbsp;&nbsp; A Registered Performance Metric Description is a written
      <br>
      &nbsp;&nbsp; representation of a particular Registry entry.&nbsp; It supplements
      the
      <br>
      &nbsp;&nbsp; metric name to help Registry users select relevant Registered
      <br>
      &nbsp;&nbsp; Performance Metrics.
      <br>
      <br>
      7.2.&nbsp; Metric Definition Category
      <br>
      <br>
      &nbsp;&nbsp; This category includes columns to prompt all necessary details
      <br>
      &nbsp;&nbsp; related to the metric definition, including the RFC reference
      and
      <br>
      &nbsp;&nbsp; values of input factors, called fixed parameters, which are
      left open
      <br>
      &nbsp;&nbsp; in the RFC but have a particular value defined by the
      performance
      <br>
      &nbsp;&nbsp; metric.
      <br>
      <br>
      7.2.1.&nbsp; Reference Definition
      <br>
      <br>
      &nbsp;&nbsp; This entry provides a reference (or references) to the relevant
      <br>
      &nbsp;&nbsp; section(s) of the document(s) that define the metric, as well
      as any
      <br>
      &nbsp;&nbsp; supplemental information needed to ensure an unambiguous
      definition
      <br>
      &nbsp;&nbsp; for implementations.&nbsp; The reference needs to be an immutable
      <br>
      &nbsp;&nbsp; document, such as an RFC; for other standards bodies, it is
      likely to
      <br>
      &nbsp;&nbsp; be necessary to reference a specific, dated version of a
      <br>
      &nbsp;&nbsp; specification.
      <br>
    </blockquote>
    you speak about other standard bodies here (which I agree with), but
    here is the definition<br>
    <pre class="newpage">   Performance Metric:  A Performance Metric is a quantitative measure
      of performance, specific to an IETF-specified protocol or specific
      to an application transported over an IETF-specified protocol.</pre>
    NEW:<br>
    <pre class="newpage">   Performance Metric:  A Performance Metric is a quantitative measure
      of performance, targeted to an IETF-specified protocol or targeted
      to an application transported over an IETF-specified protocol.</pre>
    <br>
    Proposal:<br>
    &nbsp;&nbsp; The reference needs to be an immutable
    <br>
    &nbsp;&nbsp; document, such as an RFC; in cases where other standards bodies
    would benefit from the Performance Metric Registry, it is<br>
    &nbsp;&nbsp; necessary to reference a specific, dated version of a
    specification.
    <br>
    <br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      7.2.2.&nbsp; Fixed Parameters
      <br>
      <br>
      &nbsp;&nbsp; Fixed Parameters are input factors whose value must be
      specified in
      <br>
      &nbsp;&nbsp; the Registry.&nbsp; The measurement system uses these values.
      <br>
      <br>
      &nbsp;&nbsp; Where referenced metrics supply a list of Parameters as part of
      their
      <br>
      &nbsp;&nbsp; descriptive template, a sub-set of the Parameters will be
      designated
      <br>
      &nbsp;&nbsp; as Fixed Parameters.&nbsp; </blockquote>
    Not a def., so lower case.<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">For
      example, for active metrics, Fixed
      <br>
    </blockquote>
    idem. Maybe more occurrences. Please check through the draft.<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">&nbsp;&nbsp;
      Parameters determine most or all of the IPPM Framework convention
      <br>
      &nbsp;&nbsp; "packets of Type-P" as described in [RFC2330], such as
      transport
      <br>
      &nbsp;&nbsp; protocol, payload length, TTL, etc.&nbsp; An example for passive
      metrics
      <br>
      &nbsp;&nbsp; is for RTP packet loss calculation that relies on the
      validation of a
      <br>
      &nbsp;&nbsp; packet as RTP which is a multi-packet validation controlled by
      <br>
      &nbsp;&nbsp; MIN_SEQUENTIAL as defined by [RFC3550].&nbsp; Varying MIN_SEQUENTIAL
      <br>
      &nbsp;&nbsp; values can alter the loss report and this value could be set as
      a
      <br>
      &nbsp;&nbsp; fixed parameter
      <br>
      <br>
      &nbsp;&nbsp; A Parameter which is Fixed for one Registry entry may be
      designated
      <br>
      &nbsp;&nbsp; as a Run-time Parameter for another Registry entry.
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
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      <br>
      <br>
      <br>
      7.3.&nbsp; Method of Measurement Category
      <br>
      <br>
      &nbsp;&nbsp; This category includes columns for references to relevant
      sections of
      <br>
      &nbsp;&nbsp; the RFC(s) and any supplemental information needed to ensure an
      <br>
      &nbsp;&nbsp; unambiguous method for implementations.
      <br>
      <br>
      7.3.1.&nbsp; Reference Method
      <br>
    </blockquote>
    Slightly confused with the difference with 7.2.1<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; This entry provides references to relevant sections of the
      RFC(s)
      <br>
      &nbsp;&nbsp; describing the method of measurement, as well as any
      supplemental
      <br>
      &nbsp;&nbsp; information needed to ensure unambiguous interpretation for
      <br>
      &nbsp;&nbsp; implementations referring to the RFC text.
      <br>
      <br>
      &nbsp;&nbsp; Specifically, this section should include pointers to
      pseudocode or
      <br>
      &nbsp;&nbsp; actual code that could be used for an unambigious
      implementation.
      <br>
      <br>
      7.3.2.&nbsp; Packet Generation Stream
      <br>
      <br>
      &nbsp;&nbsp; This column applies to metrics that generate traffic for
      measurement
      <br>
      &nbsp;&nbsp; purposes including but not necessarily limited to Active
      metrics.
      <br>
      &nbsp;&nbsp; The generated traffic is referred as stream and this columns
      describe
      <br>
      &nbsp;&nbsp; its characteristics.&nbsp; Principally, two different streams are
      used in
      <br>
      &nbsp;&nbsp; IPPM metrics, Poisson distributed as described in [RFC2330] and
      <br>
      &nbsp;&nbsp; Periodic as described in [RFC3432].&nbsp; Both Poisson and Periodic
      have
      <br>
      &nbsp;&nbsp; their own unique parameters, and the relevant set of values is
      <br>
      &nbsp;&nbsp; specified in this column.
      <br>
      <br>
      &nbsp;&nbsp; Each entry for this column contains the following information:
      <br>
      <br>
      &nbsp;&nbsp; o&nbsp; Value: The name of the packet stream scheduling discipline
      <br>
      <br>
      &nbsp;&nbsp; o&nbsp; Stream Parameters: The values and formats of input factors
      for
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; each type of stream.&nbsp; For example, the average packet rate
      and
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; distribution truncation value for streams with
      Poisson-distributed
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inter-packet sending times.
      <br>
      <br>
      &nbsp;&nbsp; o&nbsp; Reference: the specification where the stream is defined
      <br>
      <br>
      &nbsp;&nbsp; The simplest example of stream specification is Singleton
      scheduling,
      <br>
    </blockquote>
    singleton<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">&nbsp;&nbsp;
      where a single atomic measurement is conducted.&nbsp; Each atomic
      <br>
      &nbsp;&nbsp; measurement could consist of sending a single packet (such as a
      DNS
      <br>
      &nbsp;&nbsp; request) or sending several packets (for example, to request a
      <br>
      &nbsp;&nbsp; webpage).&nbsp; Other streams support a series of atomic
      measurements in a
      <br>
      &nbsp;&nbsp; "sample", with a schedule defining the timing between each
      <br>
      &nbsp;&nbsp; transmitted packet and subsequent measurement.
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
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      <br>
      <br>
      7.3.3.&nbsp; Traffic Filter
      <br>
      <br>
      &nbsp;&nbsp; This column applies to metrics that observe packets flowing in
      the
      <br>
      &nbsp;&nbsp; wire i.e. that is not specifically addressed to the measurement
      <br>
      &nbsp;&nbsp; agent.&nbsp; This includes but is not limited to Passive Metrics.&nbsp;
      The
      <br>
      &nbsp;&nbsp; filter specifies the traffic constraints that the passive
      measurement
      <br>
      &nbsp;&nbsp; method used is valid (or invalid) for.&nbsp; This includes valid
      packet
      <br>
      &nbsp;&nbsp; sampling ranges, width of valid traffic matches (eg. all
      traffic on
      <br>
      &nbsp;&nbsp; interface, UDP packets packets in a flow (eg. same RTP
      session).
      <br>
      <br>
      &nbsp;&nbsp; It is possible that the measurement method may not have a
      specific
      <br>
      &nbsp;&nbsp; limitation.&nbsp; However, this specific registry entry with it's
      <br>
      &nbsp;&nbsp; combination of fixed parameters implies restrictions.&nbsp; These
      <br>
      &nbsp;&nbsp; restrictions would be listed in this field.
      <br>
    </blockquote>
    I don't understand the above paragraph.<br>
    Do you want to say that this is applicable to all traffic, that
    there are no traffic filter.<br>
    If yes, how do note that. The next section contains "all" if no
    sampling.<br>
    Do we want "none" if not traffic filter?<br>
    Or maybe "N.A." in each cases, to be consistent?<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      7.3.4.&nbsp; Sampling distribution
      <br>
      <br>
      &nbsp;&nbsp; The sampling distribution defines out of all the packets that
      match
      <br>
      &nbsp;&nbsp; the traffic filter, which one of those are actually used for
      the
      <br>
      &nbsp;&nbsp; measurement.&nbsp; One possibility is "all" which implies that all
      packets
      <br>
      &nbsp;&nbsp; matching the Traffic filter are considered, but there may be
      other
      <br>
      &nbsp;&nbsp; sampling strategies.&nbsp; It includes the following information:
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Value: the name of the sampling distribution
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Parameters: if any.
      <br>
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reference definition: pointer to the specification where the
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; sampling distribution is properly defined.
      <br>
      <br>
      7.3.5.&nbsp; Run-time Parameters
      <br>
      <br>
      &nbsp;&nbsp; Run-Time Parameters are input factors that must be determined,
      <br>
      &nbsp;&nbsp; configured into the measurement system, and reported with the
      results
      <br>
      &nbsp;&nbsp; for the context to be complete.&nbsp; However, the values of these
      <br>
      &nbsp;&nbsp; parameters is not specified in the Registry, rather these
      parameters
      <br>
      &nbsp;&nbsp; are listed as an aid to the measurement system implementor or
      user
      <br>
      &nbsp;&nbsp; (they must be left as variables, and supplied on execution).
      <br>
      <br>
      &nbsp;&nbsp; Where metrics supply a list of Parameters as part of their
      <br>
      &nbsp;&nbsp; descriptive template, a sub-set of the Parameters will be
      designated
      <br>
      &nbsp;&nbsp; as Run-Time Parameters.
      <br>
      <br>
      &nbsp;&nbsp; A Data Format of each Run-time Parameter SHALL be specified in
      this
      <br>
      &nbsp;&nbsp; column, to simplify the control and implementation of
      measurement
      <br>
      &nbsp;&nbsp; devices.
      <br>
    </blockquote>
    Don't think it's appropriate to specify a data format in the
    registry.<br>
    I could use different encoding such as IPFIX, TWAMP, NETCONF, JSON,
    ... and still use this registry.<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      <br>
      <br>
      <br>
      <br>
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      <br>
      <br>
      <br>
      &nbsp;&nbsp; Examples of Run-time Parameters include IP addresses,
      measurement
      <br>
      &nbsp;&nbsp; point designations, start times and end times for measurement,
      and
      <br>
      &nbsp;&nbsp; other information essential to the method of measurement.
      <br>
      <br>
      7.3.6.&nbsp; Role
      <br>
      <br>
      &nbsp;&nbsp; In some method of measurements, there may be several roles
      defined
      <br>
      &nbsp;&nbsp; e.g. on a one-way packet delay active measurement, there is one
      <br>
      &nbsp;&nbsp; measurement agent that generates the packets and the other one
      that
      <br>
      &nbsp;&nbsp; receives the packets.&nbsp; This column contains the name of the
      role for
      <br>
      &nbsp;&nbsp; this particular entry.&nbsp; In the previous example, there should
      be two
      <br>
      &nbsp;&nbsp; entries int he registry, one for each role, so that when a
      <br>
      &nbsp;&nbsp; measurement agent is instructed to perform the one way delay
      source
      <br>
      &nbsp;&nbsp; metric know that it is supposed to generate packets.&nbsp; The
      values for
      <br>
      &nbsp;&nbsp; this field are defined in the reference method of measurement.
      <br>
    </blockquote>
    I'm missing this "role" goal.<br>
    Different roles imply different performance metrics, no?<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      7.4.&nbsp; Output Category
      <br>
      <br>
      &nbsp;&nbsp; For entries which involve a stream and many singleton
      measurements, a
      <br>
      &nbsp;&nbsp; statistic may be specified in this column to summarize the
      results to
      <br>
      &nbsp;&nbsp; a single value.&nbsp; If the complete set of measured singletons is
      <br>
      &nbsp;&nbsp; output, this will be specified here.
      <br>
      <br>
      &nbsp;&nbsp; Some metrics embed one specific statistic in the reference
      metric
      <br>
      &nbsp;&nbsp; definition, while others allow several output types or
      statistics.
      <br>
      <br>
      7.4.1.&nbsp; Value
      <br>
      <br>
      &nbsp;&nbsp; This column contain the name of the output type.&nbsp; The output
      type
      <br>
      &nbsp;&nbsp; defines the type of result that the metric produces.&nbsp; It can be
      the
      <br>
      &nbsp;&nbsp; raw results or it can be some form of statistic.&nbsp; The
      specification
      <br>
      &nbsp;&nbsp; of the output type must define the format of the output.&nbsp; In
      some
      <br>
      &nbsp;&nbsp; systems, format specifications will simplify both measurement
      <br>
      &nbsp;&nbsp; implementation and collection/storage tasks.&nbsp; Note that if two
      <br>
      &nbsp;&nbsp; different statistics are required from a single measurement
      (for
      <br>
      &nbsp;&nbsp; example, both "Xth percentile mean" and "Raw"), then a new
      output
      <br>
      &nbsp;&nbsp; type must be defined ("Xth percentile mean AND Raw").
      <br>
      <br>
      7.4.2.&nbsp; Data Format
      <br>
    </blockquote>
    Same point as before on the data format.<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; This column provides the data format for the output.&nbsp; It is
      provided
      <br>
      &nbsp;&nbsp; to simplify the communication with collection systems and
      <br>
      &nbsp;&nbsp; implementation of measurement devices.
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
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      <br>
      <br>
      7.4.3.&nbsp; Reference
      <br>
      <br>
      &nbsp;&nbsp; This column contains a pointer to the specification where the
      output
      <br>
      &nbsp;&nbsp; type is defined
      <br>
      <br>
      7.4.4.&nbsp; Metric Units
      <br>
      <br>
      &nbsp;&nbsp; The measured results must be expressed using some standard
      dimension
      <br>
      &nbsp;&nbsp; or units of measure.&nbsp; This column provides the units.
      <br>
      <br>
      &nbsp;&nbsp; When a sample of singletons (see [RFC2330] for definitions of
      these
      <br>
      &nbsp;&nbsp; terms) is collected, this entry will specify the units for each
      <br>
      &nbsp;&nbsp; measured value.
      <br>
    </blockquote>
    I guess the above is an example.<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      7.5.&nbsp; Admisnitratvie information
      <br>
      <br>
      7.5.1.&nbsp; Status
      <br>
      <br>
      &nbsp;&nbsp; The status of the specification of this Registered Performance
      <br>
      &nbsp;&nbsp; Metric.&nbsp; Allowed values are 'current' and 'deprecated'.&nbsp; All
      newly
      <br>
      &nbsp;&nbsp; defined Information Elements have 'current' status.
      <br>
      <br>
      7.5.2.&nbsp; Requester
      <br>
      <br>
      &nbsp;&nbsp; The requester for the Registered Performance Metric.&nbsp; The
      requester
      <br>
      &nbsp;&nbsp; MAY be a document, such as RFC, or person.
      <br>
      <br>
      7.5.3.&nbsp; Revision
      <br>
      <br>
      &nbsp;&nbsp; The revision number of a Registered Performance Metric,
      starting at 0
      <br>
      &nbsp;&nbsp; for Registered Performance Metrics at time of definition and
      <br>
      &nbsp;&nbsp; incremented by one for each revision.
      <br>
      <br>
      7.5.4.&nbsp; Revision Date
      <br>
      <br>
      &nbsp;&nbsp; The date of acceptance or the most recent revision for the
      Registered
      <br>
      &nbsp;&nbsp; Performance Metric.
      <br>
      <br>
      7.6.&nbsp; Comments and Remarks
      <br>
      <br>
      &nbsp;&nbsp; Besides providing additional details which do not appear in
      other
      <br>
      &nbsp;&nbsp; categories, this open Category (single column) allows for
      unforeseen
      <br>
      &nbsp;&nbsp; issues to be addressed by simply updating this Informational
      entry.
      <br>
    </blockquote>
    informational<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
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      <br>
      <br>
      <br>
      8.&nbsp; The Life-Cycle of Registered Metrics
      <br>
      <br>
      &nbsp;&nbsp; Once a Performance Metric or set of Performance Metrics has
      been
      <br>
      &nbsp;&nbsp; identified for a given application, candidate Registry entry
      <br>
      &nbsp;&nbsp; specifications in accordance with Section 7 are submitted to
      IANA to
      <br>
      &nbsp;&nbsp; follow the process for review by the Performance Metric
      Experts, as
      <br>
      &nbsp;&nbsp; defined below.&nbsp; This process is also used for other changes to
      the
      <br>
      &nbsp;&nbsp; Performance Metric Registry, such as deprecation or revision,
      as
      <br>
      &nbsp;&nbsp; described later in this section.
      <br>
      <br>
      &nbsp;&nbsp; It is also desirable that the author(s) of a candidate Registry
      entry
      <br>
      &nbsp;&nbsp; seek review in the relevant IETF working group, or offer the
      <br>
      &nbsp;&nbsp; opportunity for review on the WG mailing list.
      <br>
    </blockquote>
    If we keep the performance metrics directorate notion, then we must
    have a new paragraph here.<br>
    <br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      8.1.&nbsp; Adding new Performance Metrics to the Registry
      <br>
      <br>
      &nbsp;&nbsp; Requests to change Registered Metrics in the Performance Metric
      <br>
      &nbsp;&nbsp; Registry are submitted to IANA, which forwards the request to a
      <br>
      &nbsp;&nbsp; designated group of experts (Performance Metric Experts)
      appointed by
      <br>
      &nbsp;&nbsp; the IESG; these are the reviewers called for by the Expert
      Review
      <br>
      &nbsp;&nbsp; RFC5226 policy defined for the Performance Metric Registry.&nbsp;
      The
      <br>
      &nbsp;&nbsp; Performance Metric Experts review the request for such things
      as
      <br>
      &nbsp;&nbsp; compliance with this document, compliance with other applicable
      <br>
      &nbsp;&nbsp; Performance Metric-related RFCs, and consistency with the
      currently
      <br>
      &nbsp;&nbsp; defined set of Registered Performance Metrics.
      <br>
      <br>
      &nbsp;&nbsp; Authors are expected to review compliance with the
      specifications in
      <br>
      &nbsp;&nbsp; this document to check their submissions before sending them to
      IANA.
      <br>
      <br>
      &nbsp;&nbsp; The Performance Metric Experts should endeavor to complete
      referred
      <br>
      &nbsp;&nbsp; reviews in a timely manner.&nbsp; If the request is acceptable, the
      <br>
      &nbsp;&nbsp; Performance Metric Experts signify their approval to IANA,
      which
      <br>
      &nbsp;&nbsp; changes </blockquote>
    changes -&gt; updates<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">the
      Performance Metric Registry.&nbsp; If the request is not
      <br>
      &nbsp;&nbsp; acceptable, the Performance Metric Experts can coordinate with
      the
      <br>
      &nbsp;&nbsp; requester to change the request to be compliant.&nbsp; The
      Performance
      <br>
      &nbsp;&nbsp; Metric Experts may also choose in exceptional circumstances to
      reject
      <br>
      &nbsp;&nbsp; clearly frivolous or inappropriate change requests outright.
      <br>
      <br>
      &nbsp;&nbsp; This process should not in any way be construed as allowing the
      <br>
      &nbsp;&nbsp; Performance Metric Experts to overrule IETF consensus.&nbsp;
      Specifically,
      <br>
      &nbsp;&nbsp; any Registered Metrics that were added with IETF consensus
      require
      <br>
      &nbsp;&nbsp; IETF consensus for revision or deprecation.
      <br>
      <br>
      &nbsp;&nbsp; Decisions by the Performance Metric Experts may be appealed as
      in
      <br>
      &nbsp;&nbsp; Section 7 of RFC5226.
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
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      <br>
      <br>
      <br>
      8.2.&nbsp; Revising Registered Performance Metrics
      <br>
      <br>
      &nbsp;&nbsp; A request for Revision is ONLY permissible when the changes
      maintain
      <br>
    </blockquote>
    ONLY -&gt; only<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">&nbsp;&nbsp;
      backward-compatibility with implementations of the prior Registry
      <br>
      &nbsp;&nbsp; entry describing a Registered Metric (entries with lower
      revision
      <br>
      &nbsp;&nbsp; numbers, but the same Identifier and Name).
      <br>
      <br>
      &nbsp;&nbsp; The purpose of the Status field in the Performance Metric
      Registry is
      <br>
      &nbsp;&nbsp; to indicate whether the entry for a Registered Metric is
      'current' or
      <br>
      &nbsp;&nbsp; 'deprecated'.
      <br>
      <br>
      &nbsp;&nbsp; In addition, no policy is defined for revising IANA Performance
      <br>
      &nbsp;&nbsp; Metric entries or addressing errors therein.&nbsp; To be certain,
      changes
      <br>
      &nbsp;&nbsp; and deprecations within the Performance Metric Registry are not
      <br>
      &nbsp;&nbsp; encouraged, and should be avoided to the extent possible.&nbsp;
      However,
      <br>
      &nbsp;&nbsp; in recognition that change is inevitable, the provisions of
      this
      <br>
      &nbsp;&nbsp; section address the need for revisions.
      <br>
      <br>
      &nbsp;&nbsp; Revisions are initiated by sending a candidate Registered
      Performance
      <br>
      &nbsp;&nbsp; Metric definition to IANA, as in Section X, identifying the
      existing
      <br>
      &nbsp;&nbsp; Registry entry.
      <br>
      <br>
      &nbsp;&nbsp; The primary requirement in the definition of a policy for
      managing
      <br>
      &nbsp;&nbsp; changes to existing Registered Performance Metrics is avoidance
      of
      <br>
      &nbsp;&nbsp; interoperability problems; Performance Metric Experts must work
      to
      <br>
      &nbsp;&nbsp; maintain interoperability above all else.&nbsp; Changes to
      Registered
      <br>
      &nbsp;&nbsp; Performance Metrics may only be done in an inter-operable way;
      <br>
      &nbsp;&nbsp; necessary changes that cannot be done in a way to allow
      <br>
      &nbsp;&nbsp; interoperability with unchanged implementations must result in
      the
      <br>
      &nbsp;&nbsp; creation of a new Registered Metric and possibly the
      deprecation of
      <br>
      &nbsp;&nbsp; the earlier metric.
      <br>
      <br>
      &nbsp;&nbsp; A change to a Registered Performance Metric is held to be
      backward-
      <br>
      &nbsp;&nbsp; compatible only when:
      <br>
      <br>
      &nbsp;&nbsp; 1.&nbsp; "it involves the correction of an error that is obviously
      only
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; editorial; or"
      <br>
      <br>
      &nbsp;&nbsp; 2.&nbsp; "it corrects an ambiguity in the Registered Performance
      Metric's
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; definition, which itself leads to issues severe enough to
      prevent
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; the Registered Performance Metric's usage as originally
      defined;
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; or"
      <br>
      <br>
      &nbsp;&nbsp; 3.&nbsp; "it corrects missing information in the metric definition
      without
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; changing its meaning (e.g., the explicit definition of
      'quantity'
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; semantics for numeric fields without a Data Type Semantics
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; value); or"
      <br>
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
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      <br>
      <br>
      <br>
      &nbsp;&nbsp; 4.&nbsp; "it harmonizes with an external reference that was itself
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; corrected."
      <br>
      <br>
      &nbsp;&nbsp; 5.&nbsp; "BENOIT: NOTE THAT THERE ARE MORE RULES IN RFC 7013 SECTION
      5 BUT
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; THEY WOULD ONLY APPLY TO THE ACTIVE/PASSIVE DRAFTS.&nbsp; TO BE
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DISCUSSED."
      <br>
    </blockquote>
    BENOIT should really focus on this :-)<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; If a change is deemed permissible by the Performance Metric
      Experts,
      <br>
    </blockquote>
    NEW: If an Performance Metric revision is deemed permissible by the
    Performance Metric Experts,
    according to the rules in this document,<br>
    <br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">&nbsp;&nbsp;
      IANA makes the change in the Performance Metric Registry.&nbsp; The
      <br>
      &nbsp;&nbsp; requester of the change is appended to the requester in the
      Registry.
      <br>
      <br>
      &nbsp;&nbsp; Each Registered Performance Metric in the Registry has a
      revision
      <br>
      &nbsp;&nbsp; number, starting at zero.&nbsp; Each change to a Registered
      Performance
      <br>
      &nbsp;&nbsp; Metric following this process increments the revision number by
      one.
      <br>
      <br>
      &nbsp;&nbsp; COMMENT: Al (and Phil) think we should keep old/revised entries
      as-
      <br>
      &nbsp;&nbsp; is, marked as deprecated &gt;&gt;&gt;&gt; Since any revision
      must be inter-
      <br>
      &nbsp;&nbsp; operable according to the criteria above, there is no need for
      the
      <br>
      &nbsp;&nbsp; Performance Metric Registry to store information about old
      revisions.
      <br>
    </blockquote>
    Agreed.<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; When a revised Registered Performance Metric is accepted into
      the
      <br>
      &nbsp;&nbsp; Performance Metric Registry, the date of acceptance of the most
      <br>
      &nbsp;&nbsp; recent revision is placed into the revision Date column of the
      <br>
      &nbsp;&nbsp; Registry for that Registered Performance Metric.
      <br>
      <br>
      &nbsp;&nbsp; Where applicable, additions to Registry entries in the form of
      text
      <br>
      &nbsp;&nbsp; Comments or Remarks should include the date, but such additions
      may
      <br>
      &nbsp;&nbsp; not constitute a revision according to this process.
      <br>
      <br>
      8.3.&nbsp; Deprecating Registered Performance Metrics
      <br>
      <br>
      &nbsp;&nbsp; Changes that are not permissible by the above criteria for
      Registered
      <br>
      &nbsp;&nbsp; Metric's revision may only be handled by deprecation.&nbsp; A
      Registered
      <br>
      &nbsp;&nbsp; Performance Metric MAY be deprecated and replaced when:
      <br>
      <br>
      &nbsp;&nbsp; 1.&nbsp; "the Registered Performance Metric definition has an error
      or
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; shortcoming that cannot be permissibly changed as in
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Section Revising Registered Performance Metrics; or"
      <br>
      <br>
      &nbsp;&nbsp; 2.&nbsp; "the deprecation harmonizes with an external reference that
      was
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; itself deprecated through that reference's accepted
      deprecation
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; method; or"
      <br>
      <br>
      &nbsp;&nbsp; A request for deprecation is sent to IANA, which passes it to
      the
      <br>
      &nbsp;&nbsp; Performance Metric Expert for review, as in Section 'The
      Process for
      <br>
      &nbsp;&nbsp; Review by the Performance Metric Experts'.&nbsp; When deprecating an
      <br>
      &nbsp;&nbsp; Performance Metric, the Performance Metric description in the
      <br>
      &nbsp;&nbsp; Performance Metric Registry must be updated to explain the
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      [Page 21]
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      September 2014
      <br>
      <br>
      <br>
      &nbsp;&nbsp; deprecation, as well as to refer to any new Performance Metrics
      <br>
      &nbsp;&nbsp; created to replace the deprecated Performance Metric.
      <br>
      <br>
      &nbsp;&nbsp; The revision number of a Registered Performance Metric is
      incremented
      <br>
      &nbsp;&nbsp; upon deprecation, and the revision Date updated, as with any
      <br>
      &nbsp;&nbsp; revision.
      <br>
      <br>
      &nbsp;&nbsp; The use of deprecated Registered Metrics should result in a log
      entry
      <br>
      &nbsp;&nbsp; or human-readable warning by the respective application.
      <br>
      <br>
      &nbsp;&nbsp; Names and Metric ID of deprecated Registered Metrics must not
      be
      <br>
      &nbsp;&nbsp; reused.
      <br>
      <br>
      9.&nbsp; Performance Metric Registry and other Registries
      <br>
      <br>
      &nbsp;&nbsp; BENOIT: TBD.
      <br>
      <br>
      &nbsp;&nbsp; THE BASIC IDEA IS THAT PEOPLE COULD DIRECTLY DEFINE PERF.&nbsp;
      METRICS IN
      <br>
      &nbsp;&nbsp; OTHER EXISTING REGISTRIES, FOR SPECIFIC PROTOCOL/ENCODING.&nbsp;
      EXAMPLE:
      <br>
      &nbsp;&nbsp; IPFIX.&nbsp; IDEALLY, ALL PERF.&nbsp; METRICS SHOULD BE DEFINED IN THIS
      <br>
      &nbsp;&nbsp; REGISTRY AND REFERS TO FROM OTHER REGISTRIES.
      <br>
      <br>
      10.&nbsp; Security considerations
      <br>
      <br>
      &nbsp;&nbsp; This draft doesn't introduce any new security considerations
      for the
      <br>
      &nbsp;&nbsp; Internet.&nbsp; However, the definition of Performance Metrics may
      <br>
      &nbsp;&nbsp; introduce some security concerns, and should be reviewed with
      <br>
      &nbsp;&nbsp; security in mind.
      <br>
      <br>
      11.&nbsp; IANA Considerations
      <br>
      <br>
      &nbsp;&nbsp; This document specifies the procedure for Performance Metrics
      <br>
      &nbsp;&nbsp; Registry setup.&nbsp; IANA is requested to create a new Registry for
      <br>
      &nbsp;&nbsp; Performance Metrics called "Registered Performance Metrics"
      with the
      <br>
      &nbsp;&nbsp; columns defined in Section 7.
      <br>
      <br>
      &nbsp;&nbsp; New assignments for Performance Metric Registry will be
      administered
      <br>
      &nbsp;&nbsp; by IANA through Expert Review [RFC5226], i.e., review by one of
      a
      <br>
      &nbsp;&nbsp; group of experts, the Performance Metric Experts, appointed by
      the
      <br>
      &nbsp;&nbsp; IESG upon recommendation of the Transport Area Directors.&nbsp; The
      <br>
      &nbsp;&nbsp; experts will initially be drawn from the Working Group Chairs
      and
      <br>
      &nbsp;&nbsp; document editors of the Performance Metrics Directorate
      [performance-
      <br>
      &nbsp;&nbsp; metrics-directorate].
      <br>
      <br>
      &nbsp;&nbsp; This document requests the allocation of the URI prefix
      <br>
      &nbsp;&nbsp; urn:ietf:params:ippm:metric for the purpose of generating URIs
      for
      <br>
      &nbsp;&nbsp; registered metrics.
      <br>
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      [Page 22]
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      September 2014
      <br>
      <br>
      <br>
      12.&nbsp; Acknowledgments
      <br>
      <br>
      &nbsp;&nbsp; Thanks to Brian Trammell and Bill Cerveny, IPPM chairs, for
      leading
      <br>
      &nbsp;&nbsp; some brainstorming sessions on this topic.
      <br>
      <br>
      13.&nbsp; References
      <br>
      <br>
      13.1.&nbsp; Normative References
      <br>
    </blockquote>
    Please order the RFC numbers.<br>
    <br>
    Regards, Benoit<br>
    <blockquote cite="mid:544E0FF9.7070904@cisco.com" type="cite">
      <br>
      &nbsp;&nbsp; [RFC2119]&nbsp; Bradner, S., "Key words for use in RFCs to Indicate
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Requirement Levels", BCP 14, RFC 2119, March 1997.
      <br>
      <br>
      &nbsp;&nbsp; [RFC2026]&nbsp; Bradner, S., "The Internet Standards Process --
      Revision
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3", BCP 9, RFC 2026, October 1996.
      <br>
      <br>
      &nbsp;&nbsp; [RFC2330]&nbsp; Paxson, V., Almes, G., Mahdavi, J., and M. Mathis,
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "Framework for IP Performance Metrics", RFC 2330,
      May
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1998.
      <br>
      <br>
      &nbsp;&nbsp; [RFC4148]&nbsp; Stephan, E., "IP Performance Metrics (IPPM) Metrics
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Registry", BCP 108, RFC 4148, August 2005.
      <br>
      <br>
      &nbsp;&nbsp; [RFC5226]&nbsp; Narten, T. and H. Alvestrand, "Guidelines for
      Writing an
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IANA Considerations Section in RFCs", BCP 26, RFC
      5226,
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; May 2008.
      <br>
      <br>
      &nbsp;&nbsp; [RFC6248]&nbsp; Morton, A., "RFC 4148 and the IP Performance Metrics
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (IPPM) Registry of Metrics Are Obsolete", RFC 6248,
      April
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2011.
      <br>
      <br>
      &nbsp;&nbsp; [RFC6390]&nbsp; Clark, A. and B. Claise, "Guidelines for Considering
      New
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Performance Metric Development", BCP 170, RFC 6390,
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; October 2011.
      <br>
      <br>
      &nbsp;&nbsp; [RFC6576]&nbsp; Geib, R., Morton, A., Fardid, R., and A. Steinmitz,
      "IP
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Performance Metrics (IPPM) Standard Advancement
      Testing",
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BCP 176, RFC 6576, March 2012.
      <br>
      <br>
      &nbsp;&nbsp; [RFC3986]&nbsp; Berners-Lee, T., Fielding, R., and L. Masinter,
      "Uniform
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Resource Identifier (URI): Generic Syntax", STD 66,
      RFC
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3986, January 2005.
      <br>
      <br>
      &nbsp;&nbsp; [RFC2141]&nbsp; Moats, R., "URN Syntax", RFC 2141, May 1997.
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      [Page 23]
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      <br>
      <br>
      <br>
      13.2.&nbsp; Informative References
      <br>
      <br>
      &nbsp;&nbsp; [RFC3611]&nbsp; Friedman, T., Caceres, R., and A. Clark, "RTP
      Control
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Protocol Extended Reports (RTCP XR)", RFC 3611,
      November
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2003.
      <br>
      <br>
      &nbsp;&nbsp; [RFC3550]&nbsp; Schulzrinne, H., Casner, S., Frederick, R., and V.
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Jacobson, "RTP: A Transport Protocol for Real-Time
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Applications", STD 64, RFC 3550, July 2003.
      <br>
      <br>
      &nbsp;&nbsp; [RFC6035]&nbsp; Pendleton, A., Clark, A., Johnston, A., and H.
      Sinnreich,
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "Session Initiation Protocol Event Package for Voice
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Quality Reporting", RFC 6035, November 2010.
      <br>
      <br>
      &nbsp;&nbsp; [I-D.ietf-lmap-framework]
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Eardley, P., Morton, A., Bagnulo, M., Burbridge, T.,
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Aitken, P., and A. Akhter, "A framework for
      large-scale
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; measurement platforms (LMAP)", draft-ietf-lmap-
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; framework-08 (work in progress), August 2014.
      <br>
      <br>
      &nbsp;&nbsp; [RFC5477]&nbsp; Dietz, T., Claise, B., Aitken, P., Dressler, F., and
      G.
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Carle, "Information Model for Packet Sampling
      Exports",
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; RFC 5477, March 2009.
      <br>
      <br>
      &nbsp;&nbsp; [RFC5102]&nbsp; Quittek, J., Bryant, S., Claise, B., Aitken, P., and
      J.
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Meyer, "Information Model for IP Flow Information
      Export",
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; RFC 5102, January 2008.
      <br>
      <br>
      &nbsp;&nbsp; [RFC6792]&nbsp; Wu, Q., Hunt, G., and P. Arden, "Guidelines for Use
      of the
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; RTP Monitoring Framework", RFC 6792, November 2012.
      <br>
      <br>
      &nbsp;&nbsp; [RFC5905]&nbsp; Mills, D., Martin, J., Burbank, J., and W. Kasch,
      "Network
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Time Protocol Version 4: Protocol and Algorithms
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Specification", RFC 5905, June 2010.
      <br>
      <br>
      &nbsp;&nbsp; [RFC3393]&nbsp; Demichelis, C. and P. Chimento, "IP Packet Delay
      Variation
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Metric for IP Performance Metrics (IPPM)", RFC 3393,
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; November 2002.
      <br>
      <br>
      &nbsp;&nbsp; [RFC6776]&nbsp; Clark, A. and Q. Wu, "Measurement Identity and
      Information
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reporting Using a Source Description (SDES) Item and
      an
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; RTCP Extended Report (XR) Block", RFC 6776, October
      2012.
      <br>
      <br>
      &nbsp;&nbsp; [RFC7003]&nbsp; Clark, A., Huang, R., and Q. Wu, "RTP Control
      Protocol
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (RTCP) Extended Report (XR) Block for Burst/Gap
      Discard
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Metric Reporting", RFC 7003, September 2013.
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      [Page 24]
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      September 2014
      <br>
      <br>
      <br>
      &nbsp;&nbsp; [RFC3432]&nbsp; Raisanen, V., Grotefeld, G., and A. Morton, "Network
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; performance measurement with periodic streams", RFC
      3432,
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; November 2002.
      <br>
      <br>
      &nbsp;&nbsp; [RFC4566]&nbsp; Handley, M., Jacobson, V., and C. Perkins, "SDP:
      Session
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Description Protocol", RFC 4566, July 2006.
      <br>
      <br>
      &nbsp;&nbsp; [RFC5481]&nbsp; Morton, A. and B. Claise, "Packet Delay Variation
      <br>
      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Applicability Statement", RFC 5481, March 2009.
      <br>
      <br>
      Authors' Addresses
      <br>
      <br>
      &nbsp;&nbsp; Marcelo Bagnulo
      <br>
      &nbsp;&nbsp; Universidad Carlos III de Madrid
      <br>
      &nbsp;&nbsp; Av. Universidad 30
      <br>
      &nbsp;&nbsp; Leganes, Madrid&nbsp; 28911
      <br>
      &nbsp;&nbsp; SPAIN
      <br>
      <br>
      &nbsp;&nbsp; Phone: 34 91 6249500
      <br>
      &nbsp;&nbsp; Email: <a class="moz-txt-link-abbreviated" href="mailto:marcelo@it.uc3m.es">marcelo@it.uc3m.es</a>
      <br>
      &nbsp;&nbsp; URI:&nbsp;&nbsp; <a class="moz-txt-link-freetext" href="http://www.it.uc3m.es">http://www.it.uc3m.es</a>
      <br>
      <br>
      <br>
      &nbsp;&nbsp; Benoit Claise
      <br>
      &nbsp;&nbsp; Cisco Systems, Inc.
      <br>
      &nbsp;&nbsp; De Kleetlaan 6a b1
      <br>
      &nbsp;&nbsp; 1831 Diegem
      <br>
      &nbsp;&nbsp; Belgium
      <br>
      <br>
      &nbsp;&nbsp; Email: <a class="moz-txt-link-abbreviated" href="mailto:bclaise@cisco.com">bclaise@cisco.com</a>
      <br>
      <br>
      <br>
      &nbsp;&nbsp; Philip Eardley
      <br>
      &nbsp;&nbsp; BT
      <br>
      &nbsp;&nbsp; Adastral Park, Martlesham Heath
      <br>
      &nbsp;&nbsp; Ipswich
      <br>
      &nbsp;&nbsp; ENGLAND
      <br>
      <br>
      &nbsp;&nbsp; Email: <a class="moz-txt-link-abbreviated" href="mailto:philip.eardley@bt.com">philip.eardley@bt.com</a>
      <br>
      <br>
      <br>
      &nbsp;&nbsp; Al Morton
      <br>
      &nbsp;&nbsp; AT&amp;T Labs
      <br>
      &nbsp;&nbsp; 200 Laurel Avenue South
      <br>
      &nbsp;&nbsp; Middletown, NJ
      <br>
      &nbsp;&nbsp; USA
      <br>
      <br>
      &nbsp;&nbsp; Email: <a class="moz-txt-link-abbreviated" href="mailto:acmorton@att.com">acmorton@att.com</a>
      <br>
      <br>
      <br>
      <br>
      Bagnulo, et al.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Expires March 14, 2015&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      [Page 25]
      <br>
      
      <br>
      Internet-Draft&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Registry for Performance Metrics&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
      September 2014
      <br>
      <br>
      <br>
      &nbsp;&nbsp; Aamer Akhter
      <br>
      &nbsp;&nbsp; Cisco Systems, Inc.
      <br>
      &nbsp;&nbsp; 7025 Kit Creek Road
      <br>
      &nbsp;&nbsp; RTP, NC 27709
      <br>
      &nbsp;&nbsp; USA
      <br>
      <br>
      &nbsp;&nbsp; Email: <a class="moz-txt-link-abbreviated" href="mailto:aakhter@cisco.com">aakhter@cisco.com</a>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      <br>
      .
      <br>
      <br>
    </blockquote>
    <br>
  </body>
</html>

--------------010201070901000701030307--


From nobody Tue Oct 28 09:47:59 2014
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From: Kostas Pentikousis <k.pentikousis@eict.de>
To: "MORTON, ALFRED C (AL)" <acm@research.att.com>, Bill Cerveny <ippm@wjcerveny.com>, "ippm@ietf.org" <ippm@ietf.org>
Date: Tue, 28 Oct 2014 17:41:26 +0100
Thread-Topic: [ippm] WGLC: draft-ietf-ippm-ipsec-05.txt
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Subject: Re: [ippm] WGLC: draft-ietf-ippm-ipsec-05.txt
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Dear Al, all,

| Although the proposal is applicable to both OWAMP and TWAMP, we
| currently have no registry available to extend OWAMP and use this new
| mode -- IOW, there is no IANA Registry for OWAMP Mode bit positions.
|=20
| In the near term, the draft could be positioned to extend TWAMP and
| mention clear applicability to OWAMP (but no current way to register
| the extension).

I think it makes sense to add some text in the beginning of section 4 to cl=
early spell out this issue, and then in the remainder of section 4 use "TWA=
MP" instead of "O/TWAMP". We could update the draft as soon as the datatrac=
ker is open for uploads. Would this be ok? For example:

OLD:

This section presents a method of binding O/TWAMP and IKEv2 for network mea=
surements between a client and a server which both support IPsec.  In short=
, the shared key used for securing O/TWAMP traffic is derived using IKEv2 [=
RFC5996].=20

NEW:

This section specifies a method of binding TWAMP and IKEv2 for network meas=
urements between a client and a server which both support IPsec.  In short,=
 the shared key used for securing TWAMP traffic is derived using IKEv2 [RFC=
5996]. This document reserves from the TWAMP-Modes registry the Mode value =
IANA.TBA.TWAMP.IKEv2Derived which MUST be used by TWAMP implementations com=
patible with this specification. Although an implementer MAY use this Mode =
value in an OWAMP implementation as well. It should be noted, however, that=
 IANA does not currently maintain an IANA registry for OWAMP Mode values an=
d, therefore, independent OWAMP implementations should be checked for full =
compatibility with respect to the use of this Mode value.


If you have specific text you would like to see included, please do not hes=
itate.


| In the long term, IPPM could establish the Modes and Commands
| registries for OWAMP and (in the process) decide if we will try to
| simplify life by coordinating bit positions for both -WAMPs (which
| would mean going back and specifying the OWAMP equivalent of all the
| applicable existing TWAMP Modes.

I think this makes a lot of sense and I would personally be happy to help i=
n this effort. Perhaps a new draft for Dallas?


|=20
| I'm fairly sure I mentioned this issue to Kostas in an exchange last
| month, so it's not a complete surprise, and I'm sure we can work out
| the changes to accomodate the missing OWAMP registry.

You're right Al. We did name the Mode as "IANA.TBA.TWAMP.IKEv2Derived" in t=
his revision and the IANA considerations does mention only the TWAMP-Modes =
registry, but unfortunately we didn't add the aforementioned text which wou=
ld have been optimal. Sorry about that.

Best regards,

Kostas


From nobody Tue Oct 28 14:02:37 2014
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From: "MORTON, ALFRED C (AL)" <acm@research.att.com>
To: Kostas Pentikousis <k.pentikousis@eict.de>, Bill Cerveny <ippm@wjcerveny.com>, "ippm@ietf.org" <ippm@ietf.org>
Date: Tue, 28 Oct 2014 16:55:50 -0400
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Subject: Re: [ippm] WGLC: draft-ietf-ippm-ipsec-05.txt
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Hi Kostas,

Two quick thoughts in response:

Although we may say some appropriate things in section 4,
this right place to take care of this is in a "Scope and Applicability"
section, where you could simply say that the control procedures
are applicable to OWAMP, but without a registry for Mode values
there is no way to extend OWAMP at the time of this writing.

And since this is a Standards Track extension of TWAMP, I don't=20
think we will be able to encourage use of a specific Mode value
for OWAMP implementations - this "overhanging" the assignment
process is strongly frowned upon.  Until IETF and IANA take action,
arranging for use of this feature must be arranged privately among
consenting OWAMP users.  (I think that's roughly acceptable
language for situations like this.)

more later on the registry for OWAMP,
Al


________________________________________
From: Kostas Pentikousis [k.pentikousis@eict.de]
Sent: Tuesday, October 28, 2014 12:41 PM
To: MORTON, ALFRED C (AL); Bill Cerveny; ippm@ietf.org
Subject: AW: [ippm] WGLC: draft-ietf-ippm-ipsec-05.txt

Dear Al, all,

| Although the proposal is applicable to both OWAMP and TWAMP, we
| currently have no registry available to extend OWAMP and use this new
| mode -- IOW, there is no IANA Registry for OWAMP Mode bit positions.
|
| In the near term, the draft could be positioned to extend TWAMP and
| mention clear applicability to OWAMP (but no current way to register
| the extension).

I think it makes sense to add some text in the beginning of section 4 to cl=
early spell out this issue, and then in the remainder of section 4 use "TWA=
MP" instead of "O/TWAMP". We could update the draft as soon as the datatrac=
ker is open for uploads. Would this be ok? For example:

OLD:

This section presents a method of binding O/TWAMP and IKEv2 for network mea=
surements between a client and a server which both support IPsec.  In short=
, the shared key used for securing O/TWAMP traffic is derived using IKEv2 [=
RFC5996].

NEW:

This section specifies a method of binding TWAMP and IKEv2 for network meas=
urements between a client and a server which both support IPsec.  In short,=
 the shared key used for securing TWAMP traffic is derived using IKEv2 [RFC=
5996]. This document reserves from the TWAMP-Modes registry the Mode value =
IANA.TBA.TWAMP.IKEv2Derived which MUST be used by TWAMP implementations com=
patible with this specification. Although an implementer MAY use this Mode =
value in an OWAMP implementation as well. It should be noted, however, that=
 IANA does not currently maintain an IANA registry for OWAMP Mode values an=
d, therefore, independent OWAMP implementations should be checked for full =
compatibility with respect to the use of this Mode value.


If you have specific text you would like to see included, please do not hes=
itate.


| In the long term, IPPM could establish the Modes and Commands
| registries for OWAMP and (in the process) decide if we will try to
| simplify life by coordinating bit positions for both -WAMPs (which
| would mean going back and specifying the OWAMP equivalent of all the
| applicable existing TWAMP Modes.

I think this makes a lot of sense and I would personally be happy to help i=
n this effort. Perhaps a new draft for Dallas?


|
| I'm fairly sure I mentioned this issue to Kostas in an exchange last
| month, so it's not a complete surprise, and I'm sure we can work out
| the changes to accomodate the missing OWAMP registry.

You're right Al. We did name the Mode as "IANA.TBA.TWAMP.IKEv2Derived" in t=
his revision and the IANA considerations does mention only the TWAMP-Modes =
registry, but unfortunately we didn't add the aforementioned text which wou=
ld have been optimal. Sorry about that.

Best regards,

Kostas


From nobody Wed Oct 29 02:55:50 2014
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From: Andreas Johnsson A <andreas.a.johnsson@ericsson.com>
To: Bill Cerveny <ippm@wjcerveny.com>, "ippm@ietf.org" <ippm@ietf.org>
Thread-Topic: [ippm] WGLC on draft-ietf-ippm-rate-problem-07.txt
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Hi,
I reviewed the document and have three main comments that I feel must be co=
nsidered. Two are related to Section 5 while the third is related to Sectio=
n 2.

Comment 1

In general I think that Section 5 is very confusing. Especially considering=
 that the group agreed on that asymmetric packet size testing should be a R=
ECOMMENDED feature in this draft. I'll give a few examples from this paragr=
aph that creates this confusion.

In the beginning of Section 5 it is stated that

Essentially, the test protocol MUST support the measurement features
   described in the sections above.  This requires:

   1.  Communicating all test variables to the SENDER and RECEIVER

   2.  Results collection in a one-way architecture

   3.  Remote device control for both one-way and two-way architectures

   4.  Asymmetric packet size and/or pseudo-one-way test capability in a
       two-way measurement architecture (along with symmetric packet
       size tests in common use)

Bullet 4 says that a test protocol MUST be able to control asymmetric packe=
t sizes and/or pseudo-one-way test capabilities. Since pseudo-one-way test =
capabilities are not defined in the document this becomes contradictory to =
the next paragraph

The ability to control and generate asymmetric rates in a two-way
   architecture is REQUIRED.  Two-way architectures are RECOMMENDED to
   include control and generation capability for both asymmetric and
   symmetric packet sizes, because packet size often matters in the
   scope of this problem and test systems SHOULD be equipped to detect
   directional size dependency through comparative measurements.
where it is stated that two-way architectures are RECOMMENDED to include as=
ymmetric packet size testing features.

So, either the draft must define pseudo-one-way testing or change the MUST =
to RECOMMENDED.

Comment 2

A set of conditions arguing for asymmetric packet size testing are describe=
d in Section 5. I think that it is only the condition describing the MTU - =
ACK streams that really requires asymmetric packet size testing. The other =
conditions can be dealt with using "pseudo-one-way testing" (assuming it is=
 defined as creating two TWAMP sessions with two different packet sizes).

Therefor I think that the 2nd to last paragraph

Implementations may support control and generation for only symmetric
   packet sizes when none of the above conditions hold.

should be removed. Also I think that the draft should state that the condit=
ions can be solved either with asymmetrical packet size testing features or=
 with a pseudo-one-way testing feature (if defined).

Comment 3

I strongly believe that the first paragraph of section 2 should mention RFC=
 6802 as a test protocol tool. This protocol is the first IETF protocol spe=
cifically designed for rate and capacity measurements.


Best regards,
Andreas Johnsson



From: ippm [mailto:ippm-bounces@ietf.org] On Behalf Of Bill Cerveny
Sent: den 22 oktober 2014 18:06
To: ippm@ietf.org
Subject: [ippm] WGLC on draft-ietf-ippm-rate-problem-07.txt

draft-ietf-ippm-rate-problem has been updated with changes requested by IPP=
M participants. As such, I am kicking off a WGLC for draft-ietf-ippm-rate-p=
roblem-07 until November 5, 2014. Please provide comments before the WGLC e=
nds.

Thanks,

Bill Cerveny
IPPM WG co-chair

Begin forwarded message:


From: internet-drafts@ietf.org<mailto:internet-drafts@ietf.org>
Subject: [ippm] I-D Action: draft-ietf-ippm-rate-problem-07.txt
Date: October 7, 2014 at 11:28:27 AM EDT
To: i-d-announce@ietf.org<mailto:i-d-announce@ietf.org>
Cc: ippm@ietf.org<mailto:ippm@ietf.org>


A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.
This draft is a work item of the IP Performance Metrics Working Group of th=
e IETF.

       Title           : Rate Measurement Test Protocol Problem Statement
       Author          : Al Morton
            Filename        : draft-ietf-ippm-rate-problem-07.txt
            Pages           : 12
            Date            : 2014-10-07

Abstract:
  This memo presents an access rate-measurement problem statement for
  test protocols to measure IP Performance Metrics.  The rate
  measurement scenario has wide-spread attention of Internet access
  subscribers and seemingly all industry players, including regulators.
  Key test protocol aspects require the ability to control packet size
  on the tested path and enable asymmetrical packet size testing in a
  controller-responder architecture.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ippm-rate-problem/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-ippm-rate-problem-07

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-ippm-rate-problem-07


Please note that it may take a couple of minutes from the time of submissio=
n
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

_______________________________________________
ippm mailing list
ippm@ietf.org<mailto:ippm@ietf.org>
https://www.ietf.org/mailman/listinfo/ippm


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<body lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Hi,<o:p></o:p></p>
<p class=3D"MsoNormal">I reviewed the document and have three main comments=
 that I feel must be considered. Two are related to Section 5 while the thi=
rd is related to Section 2.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><b>Comment 1<o:p></o:p></b></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">In general I think that Section 5 is very confusing.=
 Especially considering that the group agreed on that asymmetric packet siz=
e testing should be a RECOMMENDED feature in this draft. I&#8217;ll give a =
few examples from this paragraph that creates
 this confusion. <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">In the beginning of Section 5 it is stated that<o:p>=
</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
Essentially, the test protocol MUST support the measurement features<o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
&nbsp;&nbsp; described in the sections above.&nbsp; This requires:<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
<o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
&nbsp;&nbsp; 1.&nbsp; Communicating all test variables to the SENDER and RE=
CEIVER<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
<o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
&nbsp;&nbsp; 2.&nbsp; Results collection in a one-way architecture<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
<o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
&nbsp;&nbsp; 3.&nbsp; Remote device control for both one-way and two-way ar=
chitectures<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
<o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
&nbsp;&nbsp; 4.&nbsp; Asymmetric packet size and/or pseudo-one-way test cap=
ability in a<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; two-way measurement architecture (alon=
g with symmetric packet<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; size tests in common use)<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Bullet 4 says that a test protocol MUST be able to c=
ontrol asymmetric packet sizes and/or pseudo-one-way test capabilities. Sin=
ce pseudo-one-way test capabilities are not defined in the document this be=
comes contradictory to the next paragraph
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
The ability to control and generate asymmetric rates in a two-way<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
&nbsp;&nbsp; architecture is REQUIRED.&nbsp; Two-way architectures are RECO=
MMENDED to<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
&nbsp;&nbsp; include control and generation capability for both asymmetric =
and<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
&nbsp;&nbsp; symmetric packet sizes, because packet size often matters in t=
he<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
&nbsp;&nbsp; scope of this problem and test systems SHOULD be equipped to d=
etect<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
&nbsp;&nbsp; directional size dependency through comparative measurements.<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p></o:p></p>
<p class=3D"MsoNormal">where it is stated that two-way architectures are RE=
COMMENDED to include asymmetric packet size testing features.<o:p></o:p></p=
>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">So, either the draft must define pseudo-one-way test=
ing or change the MUST to RECOMMENDED.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><b>Comment 2<o:p></o:p></b></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">A set of conditions arguing for asymmetric packet si=
ze testing are described in Section 5. I think that it is only the conditio=
n describing the MTU &#8211; ACK streams that really requires asymmetric pa=
cket size testing. The other conditions
 can be dealt with using &#8220;pseudo-one-way testing&#8221; (assuming it =
is defined as creating two TWAMP sessions with two different packet sizes).
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Therefor I think that the 2<sup>nd</sup> to last par=
agraph <o:p>
</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Co=
urier New&quot;">Implementations may support control and generation for onl=
y symmetric<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Co=
urier New&quot;">&nbsp;&nbsp; packet sizes when none of the above condition=
s hold.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">should be removed. Also I think that the draft shoul=
d state that the conditions can be solved either with asymmetrical packet s=
ize testing features or with a pseudo-one-way testing feature (if defined).=
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><b>Comment 3<o:p></o:p></b></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I strongly believe that the first paragraph of secti=
on 2 should mention RFC 6802 as a test protocol tool. This protocol is the =
first IETF protocol specifically designed for rate and capacity measurement=
s.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Best regards,<o:p></o:p></p>
<p class=3D"MsoNormal">Andreas Johnsson<span style=3D"font-size:8.0pt;font-=
family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:#333333">
</span><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:&quot=
;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> ippm [ma=
ilto:ippm-bounces@ietf.org]
<b>On Behalf Of </b>Bill Cerveny<br>
<b>Sent:</b> den 22 oktober 2014 18:06<br>
<b>To:</b> ippm@ietf.org<br>
<b>Subject:</b> [ippm] WGLC on draft-ietf-ippm-rate-problem-07.txt<o:p></o:=
p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">draft-ietf-ippm-rate-problem has been updated with c=
hanges requested by IPPM participants. As such, I am kicking off a WGLC for=
&nbsp;draft-ietf-ippm-rate-problem-07 until November 5, 2014. Please provid=
e comments before the WGLC ends.<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Thanks,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Bill Cerveny<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">IPPM WG co-chair<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal">Begin forwarded message:<o:p></o:p></p>
</div>
<p class=3D"MsoNormal"><br>
<br>
<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-family:&quot;Helvetica&quot;,=
&quot;sans-serif&quot;">From: </span>
</b><span style=3D"font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;=
"><a href=3D"mailto:internet-drafts@ietf.org">internet-drafts@ietf.org</a><=
/span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-family:&quot;Helvetica&quot;,=
&quot;sans-serif&quot;">Subject: [ippm] I-D Action: draft-ietf-ippm-rate-pr=
oblem-07.txt</span></b><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-family:&quot;Helvetica&quot;,=
&quot;sans-serif&quot;">Date: </span>
</b><span style=3D"font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;=
">October 7, 2014 at 11:28:27 AM EDT</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-family:&quot;Helvetica&quot;,=
&quot;sans-serif&quot;">To: </span>
</b><span style=3D"font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;=
"><a href=3D"mailto:i-d-announce@ietf.org">i-d-announce@ietf.org</a></span>=
<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-family:&quot;Helvetica&quot;,=
&quot;sans-serif&quot;">Cc: </span>
</b><span style=3D"font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;=
"><a href=3D"mailto:ippm@ietf.org">ippm@ietf.org</a></span><o:p></o:p></p>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal"><br>
A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.<br>
This draft is a work item of the IP Performance Metrics Working Group of th=
e IETF.<br>
<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Title &nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: Rate Measurement Test Protocol Problem S=
tatement<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Author &nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;: Al Morton<br>
<span class=3D"apple-tab-span">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp; </span>Filename &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;: draft-ietf-ippm-rate-problem-07.txt<br>
<span class=3D"apple-tab-span">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp; </span>Pages &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;: 12<br>
<span class=3D"apple-tab-span">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp; </span>Date &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;: 2014-10-07<br>
<br>
Abstract:<br>
&nbsp;&nbsp;This memo presents an access rate-measurement problem statement=
 for<br>
&nbsp;&nbsp;test protocols to measure IP Performance Metrics. &nbsp;The rat=
e<br>
&nbsp;&nbsp;measurement scenario has wide-spread attention of Internet acce=
ss<br>
&nbsp;&nbsp;subscribers and seemingly all industry players, including regul=
ators.<br>
&nbsp;&nbsp;Key test protocol aspects require the ability to control packet=
 size<br>
&nbsp;&nbsp;on the tested path and enable asymmetrical packet size testing =
in a<br>
&nbsp;&nbsp;controller-responder architecture.<br>
<br>
<br>
<br>
The IETF datatracker status page for this draft is:<br>
<a href=3D"https://datatracker.ietf.org/doc/draft-ietf-ippm-rate-problem/">=
https://datatracker.ietf.org/doc/draft-ietf-ippm-rate-problem/</a><br>
<br>
There's also a htmlized version available at:<br>
<a href=3D"http://tools.ietf.org/html/draft-ietf-ippm-rate-problem-07">http=
://tools.ietf.org/html/draft-ietf-ippm-rate-problem-07</a><br>
<br>
A diff from the previous version is available at:<br>
<a href=3D"http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-ippm-rate-problem-=
07">http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-ippm-rate-problem-07</a><=
br>
<br>
<br>
Please note that it may take a couple of minutes from the time of submissio=
n<br>
until the htmlized version and diff are available at tools.ietf.org.<br>
<br>
Internet-Drafts are also available by anonymous FTP at:<br>
<a href=3D"ftp://ftp.ietf.org/internet-drafts/">ftp://ftp.ietf.org/internet=
-drafts/</a><br>
<br>
_______________________________________________<br>
ippm mailing list<br>
<a href=3D"mailto:ippm@ietf.org">ippm@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/ippm">https://www.ietf.org=
/mailman/listinfo/ippm</a><o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
</div>
</body>
</html>

--_000_D26039A349A82849AC399E2B92A05EF61A3E73BFESESSMB105erics_--


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From: Christofer Flinta <christofer.flinta@ericsson.com>
To: Bill Cerveny <ippm@wjcerveny.com>, "ippm@ietf.org" <ippm@ietf.org>
Thread-Topic: [ippm] WGLC on draft-ietf-ippm-rate-problem-07.txt
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Subject: Re: [ippm] WGLC on draft-ietf-ippm-rate-problem-07.txt
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Hi,

I have reviewed the draft and I have two comments.

Comment 1.
I think the concept "stream" should be defined.
Its use in the text suggests that it is the same thing as a session, but in=
 Section 4 the following statement is then confusing:

"e.  Variable number of packets-pairs, ensembles, or streams used in a
       test session."
Is the intention to enable several intermixed streams from the Sender to th=
e Receiver within the same session? In that case the session set-up may be =
very complex, since a control protocol needs to specify all parameters for =
several streams within a session. IMO a better option is to set up several =
parallel sessions between the Sender and the Receiver if different profiles=
 are needed. I think this must be sorted out.

Comment 2.
Section 5, bullet 4:
"4.  Asymmetric packet size and/or pseudo-one-way test capability in a
       two-way measurement architecture (along with symmetric packet
       size tests in common use)"
I am not sure this draft should specify the details of the protocol to be u=
sed for rate measurements, e.g. the use of packet size. It should rather be=
 a general specification for any type of two-way protocol - in the future n=
ot necessarily based on TWAMP. As we know, there are many possibilities for=
 implementing rate measurements in different directions, including sending =
packets with asymmetric size, sending trigger packets for trains in reverse=
 direction and buffering trains in the Receiver. I don't think we should re=
strict ourselves to any of these methods in the draft, but let the implemen=
ters be able to choose from different alternatives depending on the needs. =
Therefore I suggest to replace bullet 4 with a general requirement about ho=
w the control protocol sets up the rate measurement sessions:

"4. The ability for the control protocol to set up rate measurements in bot=
h directions of a session in a two-way measurement architecture. The rate m=
easurements can be set up separately for each direction (measuring forward =
direction only or reverse direction only during a session) or in parallel (=
measuring both forward and reverse direction during the same session)."

Best regards,
Christofer Flinta


From: ippm [mailto:ippm-bounces@ietf.org] On Behalf Of Bill Cerveny
Sent: den 22 oktober 2014 18:06
To: ippm@ietf.org
Subject: [ippm] WGLC on draft-ietf-ippm-rate-problem-07.txt

draft-ietf-ippm-rate-problem has been updated with changes requested by IPP=
M participants. As such, I am kicking off a WGLC for draft-ietf-ippm-rate-p=
roblem-07 until November 5, 2014. Please provide comments before the WGLC e=
nds.

Thanks,

Bill Cerveny
IPPM WG co-chair

Begin forwarded message:


From: internet-drafts@ietf.org<mailto:internet-drafts@ietf.org>
Subject: [ippm] I-D Action: draft-ietf-ippm-rate-problem-07.txt
Date: October 7, 2014 at 11:28:27 AM EDT
To: i-d-announce@ietf.org<mailto:i-d-announce@ietf.org>
Cc: ippm@ietf.org<mailto:ippm@ietf.org>


A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.
This draft is a work item of the IP Performance Metrics Working Group of th=
e IETF.

       Title           : Rate Measurement Test Protocol Problem Statement
       Author          : Al Morton
                      Filename        : draft-ietf-ippm-rate-problem-07.txt
                      Pages           : 12
                      Date            : 2014-10-07

Abstract:
  This memo presents an access rate-measurement problem statement for
  test protocols to measure IP Performance Metrics.  The rate
  measurement scenario has wide-spread attention of Internet access
  subscribers and seemingly all industry players, including regulators.
  Key test protocol aspects require the ability to control packet size
  on the tested path and enable asymmetrical packet size testing in a
  controller-responder architecture.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ippm-rate-problem/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-ippm-rate-problem-07

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-ippm-rate-problem-07


Please note that it may take a couple of minutes from the time of submissio=
n
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

_______________________________________________
ippm mailing list
ippm@ietf.org<mailto:ippm@ietf.org>
https://www.ietf.org/mailman/listinfo/ippm


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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Hi,<o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">I have rev=
iewed the draft and I have two comments.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Comment=
 1.<o:p></o:p></span></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">I think th=
e concept &#8220;stream&#8221; should be defined.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Its use in=
 the text suggests that it is the same thing as a session, but in Section 4=
 the following statement is then confusing:<o:p></o:p></span></p>
<pre style=3D"page-break-before:always"><span lang=3D"EN-US" style=3D"font-=
size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1=
F497D">&#8220;</span><span lang=3D"EN">e.&nbsp; Variable number of packets-=
pairs, ensembles, or streams used in a<o:p></o:p></span></pre>
<p class=3D"MsoNormal"><span lang=3D"EN" style=3D"font-family:&quot;Courier=
 New&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; test session.</span><span =
lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&q=
uot;sans-serif&quot;;color:#1F497D">&#8221;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Is the int=
ention to enable several intermixed streams from the Sender to the Receiver=
 within the same session? In that case the session set-up
 may be very complex, since a control protocol needs to specify all paramet=
ers for several streams within a session. IMO a better option is to set up =
several parallel sessions between the Sender and the Receiver if different =
profiles are needed. I think this
 must be sorted out.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Comment=
 2.<o:p></o:p></span></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Section 5,=
 bullet 4:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">&#8220;</s=
pan><span lang=3D"EN">4.&nbsp;
</span><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Cou=
rier New&quot;">Asymmetric packet size and/or pseudo-one-way test capabilit=
y in a<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Courier New&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; two-wa=
y measurement architecture (along with symmetric packet<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Courier New&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; size t=
ests in common use)</span><span lang=3D"EN-US" style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">&#8221;=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">I am not s=
ure this draft should specify the details of the protocol to be used for ra=
te measurements, e.g. the use of packet size. It should rather
 be a general specification for any type of two-way protocol - in the futur=
e not necessarily based on TWAMP. As we know, there are many possibilities =
for implementing rate measurements in different directions, including sendi=
ng packets with asymmetric size,
 sending trigger packets for trains in reverse direction and buffering trai=
ns in the Receiver. I don&#8217;t think we should restrict ourselves to any=
 of these methods in the draft, but let the implementers be able to choose =
from different alternatives depending
 on the needs. Therefore I suggest to replace bullet 4 with a general requi=
rement about how the control protocol sets up the rate measurement sessions=
:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">&#8220;4. =
The ability for the control protocol to set up rate measurements in both di=
rections of a session in a two-way measurement architecture. The
 rate measurements can be set up separately for each direction (measuring f=
orward direction only or reverse direction only during a session) or in par=
allel (measuring both forward and reverse direction during the same session=
).&#8221;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Best regar=
ds,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Christofer=
 Flinta<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-=
family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp=
;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:10.0pt;fo=
nt-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span =
lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&qu=
ot;sans-serif&quot;"> ippm [mailto:ippm-bounces@ietf.org]
<b>On Behalf Of </b>Bill Cerveny<br>
<b>Sent:</b> den 22 oktober 2014 18:06<br>
<b>To:</b> ippm@ietf.org<br>
<b>Subject:</b> [ippm] WGLC on draft-ietf-ippm-rate-problem-07.txt<o:p></o:=
p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">draft-ietf-ippm-rate-problem has been updated with c=
hanges requested by IPPM participants. As such, I am kicking off a WGLC for=
&nbsp;draft-ietf-ippm-rate-problem-07 until November 5, 2014. Please provid=
e comments before the WGLC ends.<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Thanks,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Bill Cerveny<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">IPPM WG co-chair<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal">Begin forwarded message:<o:p></o:p></p>
</div>
<p class=3D"MsoNormal"><br>
<br>
<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-family:&quot;Helvetica&quot;,=
&quot;sans-serif&quot;">From: </span>
</b><span style=3D"font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;=
"><a href=3D"mailto:internet-drafts@ietf.org">internet-drafts@ietf.org</a><=
/span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-family:&quot;Helvetica&quot;,=
&quot;sans-serif&quot;">Subject: [ippm] I-D Action: draft-ietf-ippm-rate-pr=
oblem-07.txt</span></b><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-family:&quot;Helvetica&quot;,=
&quot;sans-serif&quot;">Date: </span>
</b><span style=3D"font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;=
">October 7, 2014 at 11:28:27 AM EDT</span><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-family:&quot;Helvetica&quot;,=
&quot;sans-serif&quot;">To: </span>
</b><span style=3D"font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;=
"><a href=3D"mailto:i-d-announce@ietf.org">i-d-announce@ietf.org</a></span>=
<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-family:&quot;Helvetica&quot;,=
&quot;sans-serif&quot;">Cc: </span>
</b><span style=3D"font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;=
"><a href=3D"mailto:ippm@ietf.org">ippm@ietf.org</a></span><o:p></o:p></p>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal"><br>
A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.<br>
This draft is a work item of the IP Performance Metrics Working Group of th=
e IETF.<br>
<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Title &nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: Rate Measurement Test Protocol Problem S=
tatement<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Author &nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;: Al Morton<br>
<span class=3D"apple-tab-span">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp; </span>Filename &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: draft-i=
etf-ippm-rate-problem-07.txt<br>
<span class=3D"apple-tab-span">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp; </span>Pages &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;: 12<br>
<span class=3D"apple-tab-span">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp; </span>Date &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;: 2014-10-07<br>
<br>
Abstract:<br>
&nbsp;&nbsp;This memo presents an access rate-measurement problem statement=
 for<br>
&nbsp;&nbsp;test protocols to measure IP Performance Metrics. &nbsp;The rat=
e<br>
&nbsp;&nbsp;measurement scenario has wide-spread attention of Internet acce=
ss<br>
&nbsp;&nbsp;subscribers and seemingly all industry players, including regul=
ators.<br>
&nbsp;&nbsp;Key test protocol aspects require the ability to control packet=
 size<br>
&nbsp;&nbsp;on the tested path and enable asymmetrical packet size testing =
in a<br>
&nbsp;&nbsp;controller-responder architecture.<br>
<br>
<br>
<br>
<span lang=3D"EN-US">The IETF datatracker status page for this draft is:<br=
>
</span><a href=3D"https://datatracker.ietf.org/doc/draft-ietf-ippm-rate-pro=
blem/"><span lang=3D"EN-US">https://datatracker.ietf.org/doc/draft-ietf-ipp=
m-rate-problem/</span></a><span lang=3D"EN-US"><br>
<br>
There's also a htmlized version available at:<br>
</span><a href=3D"http://tools.ietf.org/html/draft-ietf-ippm-rate-problem-0=
7"><span lang=3D"EN-US">http://tools.ietf.org/html/draft-ietf-ippm-rate-pro=
blem-07</span></a><span lang=3D"EN-US"><br>
<br>
A diff from the previous version is available at:<br>
</span><a href=3D"http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-ippm-rate-p=
roblem-07"><span lang=3D"EN-US">http://www.ietf.org/rfcdiff?url2=3Ddraft-ie=
tf-ippm-rate-problem-07</span></a><span lang=3D"EN-US"><br>
<br>
<br>
Please note that it may take a couple of minutes from the time of submissio=
n<br>
until the htmlized version and diff are available at tools.ietf.org.<br>
<br>
Internet-Drafts are also available by anonymous FTP at:<br>
</span><a href=3D"ftp://ftp.ietf.org/internet-drafts/"><span lang=3D"EN-US"=
>ftp://ftp.ietf.org/internet-drafts/</span></a><span lang=3D"EN-US"><br>
<br>
_______________________________________________<br>
ippm mailing list<br>
</span><a href=3D"mailto:ippm@ietf.org"><span lang=3D"EN-US">ippm@ietf.org<=
/span></a><span lang=3D"EN-US"><br>
</span><a href=3D"https://www.ietf.org/mailman/listinfo/ippm"><span lang=3D=
"EN-US">https://www.ietf.org/mailman/listinfo/ippm</span></a><span lang=3D"=
EN-US"><o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
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