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Subject: [ippm] The IPPM WG has placed draft-brockners-opsawg-ioam-deployment in state "Call For Adoption By WG Issued"
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The IPPM WG has placed draft-brockners-opsawg-ioam-deployment in state
Call For Adoption By WG Issued (entered by Tommy Pauly)

The document is available at
https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/



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Subject: [ippm] The IPPM WG has placed draft-brockners-ippm-ioam-data-integrity in state "Call For Adoption By WG Issued"
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The IPPM WG has placed draft-brockners-ippm-ioam-data-integrity in state
Call For Adoption By WG Issued (entered by Tommy Pauly)

The document is available at
https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/



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From: Tommy Pauly <tpauly@apple.com>
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Date: Tue, 03 Aug 2021 09:28:38 -0700
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Subject: [ippm] Adoption call for IOAM deployment and integrity documents
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--Apple-Mail=_3257C765-EFC7-4A51-AB30-79FDC73B370A
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Hello IPPM,

As discussed in our meeting last week, we will be starting an adoption =
call for two IOAM-related documents that have been raised as important =
dependencies during the IESG review of IOAM-data.

This email begins a Working Group adoption call for two documents:

Integrity of In-situ OAM Data Fields
=
https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/=
 =
<https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity=
/>
=
https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-0=
3.html =
<https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-=
03.html>

In-situ OAM Deployment
https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/ =
<https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/>=

=
https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deployme=
nt-03 =
<https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deploym=
ent-03>

This call will last until Wednesday, August 18. Please reply to this =
email with your comments, and if you think these documents should be =
taken on by IPPM.

Best,
Tommy & Ian=

--Apple-Mail=_3257C765-EFC7-4A51-AB30-79FDC73B370A
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charset=us-ascii

<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; line-break: after-white-space;" class=3D"">Hello=
 IPPM,<div class=3D""><br class=3D""></div><div class=3D"">As discussed =
in our meeting last week, we will be starting an adoption call for two =
IOAM-related documents that have been raised as important dependencies =
during the IESG review of IOAM-data.</div><div class=3D""><br =
class=3D""></div><div class=3D"">This email begins a Working Group =
adoption call for two documents:</div><div class=3D""><br =
class=3D""></div><div class=3D""><div class=3D"">Integrity of In-situ =
OAM Data Fields</div><div class=3D""><a =
href=3D"https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-in=
tegrity/" =
class=3D"">https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data=
-integrity/</a></div></div><div class=3D""><a =
href=3D"https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-int=
egrity-03.html" =
class=3D"">https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-=
integrity-03.html</a></div><div class=3D""><br class=3D""></div><div =
class=3D"">In-situ OAM Deployment</div><div class=3D""><a =
href=3D"https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deplo=
yment/" =
class=3D"">https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-de=
ployment/</a></div><div class=3D""><a =
href=3D"https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-=
deployment-03" =
class=3D"">https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-io=
am-deployment-03</a></div><div class=3D""><br class=3D""></div><div =
class=3D"">This call will last until <b class=3D"">Wednesday, August =
18</b>. Please reply to this email with your comments, and if you think =
these documents should be taken on by IPPM.</div><div class=3D""><br =
class=3D""></div><div class=3D"">Best,</div><div class=3D"">Tommy &amp; =
Ian</div></body></html>=

--Apple-Mail=_3257C765-EFC7-4A51-AB30-79FDC73B370A--


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From: "MORTON JR., AL" <acmorton@att.com>
To: "ippm@ietf.org" <ippm@ietf.org>
CC: IPPM Chairs <ippm-chairs@ietf.org>, "ippm-ads@ietf.org" <ippm-ads@ietf.org>
Thread-Topic: Proposed changes to default settings in the Capacity metric load adjustment algorithm
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Date: Tue, 3 Aug 2021 22:00:58 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ippm/Rvqz8gSBg3R68rmhj6JXU-SI6Jo>
Subject: [ippm] Proposed changes to default settings in the Capacity metric load adjustment algorithm
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IPPM,

I want to point out that some recent results conducted by others encouraged=
 us to test some additional values for seq error threshold and a wider valu=
e range of values for consecutive errored status (during feedback intervals=
).  We discovered that we would like to revise the default values to make t=
he load adjustment a little less-sensitive to non-congestion-related loss a=
nd protect the fast ramp-up from ending prematurely. For example, a very sh=
ort burst of lost packets spanning the boundary between two feedback interv=
als is currently sufficient to end fast ramp-up.

The current table in 8.1 contains:
+--------------+-------------+--------------+-----------------------+
| Parameter    | Default     | Tested Range | Expected Safe Range   |
|              |             | or values    | (not entirely tested, |
|              |             |              | other values NOT      |
|              |             |              | RECOMMENDED)          |
+--------------+-------------+--------------+-----------------------+
...
+--------------+-------------+--------------+-----------------------+
| sequence     | 0           | 0, 100       | same as tested        |
| error        |             |              |                       |
| threshold    |             |              |                       |
+--------------+-------------+--------------+-----------------------+
| consecutive  | 2           | 2            | Use values >1 to      |
| errored      |             |              | avoid misinterpreting |
| status       |             |              | transient loss        |
+--------------+-------------+--------------+-----------------------+


The revised table rows would look like this:

+--------------+-------------+--------------+-----------------------+
| Parameter    | Default     | Tested Range | Expected Safe Range   |
|              |             | or values    | (not entirely tested, |
|              |             |              | other values NOT      |
|              |             |              | RECOMMENDED)          |
+--------------+-------------+--------------+-----------------------+
...
+--------------+-------------+--------------+-----------------------+
| sequence     | 10          | 0,1,5,10,100 | same as tested        |
| error        |             |              |                       |
| threshold    |             |              |                       |
+--------------+-------------+--------------+-----------------------+
| consecutive  | 3           | 2,3,4,5      | Use values >1 to      |
| errored      |             |              | avoid misinterpreting |
| status       |             |              | transient loss        |
+--------------+-------------+--------------+-----------------------+

Somehow, persistent non-congestion-related loss had mostly eluded our previ=
ous tests. But our goal has been to provide default values that will work i=
n automated testing run by anyone in any implementation or circumstances - =
not just ~expert users and those who run the udpst utility.

So we'd like to change default values for:

  seq error threshold         from 0 to 10
  consecutive errored status  from 2 to  3

and update our tested range/values column as well.

Al


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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charse=
t=3DGB2312"><style>body { line-height: 1.5; }body { font-size: 14px; font-=
family: "Microsoft YaHei UI"; color: rgb(0, 0, 0); line-height: 1.5; }</st=
yle></head><body>=0A<div><span></span><div><span style=3D"font-family: =CE=
=A2=C8=ED=D1=C5=BA=DA;">Dear WG and chairs,</span></div><div><br></div><di=
v><span style=3D"font-family: =CE=A2=C8=ED=D1=C5=BA=DA; background-color: =
transparent;">The Authors</span><span style=3D"font-family: =CE=A2=C8=ED=
=D1=C5=BA=DA; background-color: transparent;">&nbsp;</span>&nbsp;have subm=
itted&nbsp;and&nbsp;presented a Flow Learning draft&nbsp;at&nbsp;IETF111.&=
nbsp;<span style=3D"background-color: transparent;">Hope experts intereste=
d in this draft can review and give comments~</span></div></div>=0A<div><b=
r></div><div><div style=3D"font-family: &quot;Microsoft YaHei UI&quot;, Ta=
homa;">Name:	draft-hwyh-ippm-ps-inband-flow-learning</div><div style=3D"fo=
nt-family: &quot;Microsoft YaHei UI&quot;, Tahoma;">Revision:	00</div><div=
 style=3D"font-family: &quot;Microsoft YaHei UI&quot;, Tahoma;">Title:	Pro=
blem Statement and Requirement for Inband Flow Learning</div><div style=3D=
"font-family: &quot;Microsoft YaHei UI&quot;, Tahoma;">Document date:	2021=
-07-08</div><div style=3D"font-family: &quot;Microsoft YaHei UI&quot;, Tah=
oma;">Group:	Individual Submission</div><div style=3D"font-family: &quot;M=
icrosoft YaHei UI&quot;, Tahoma;">Pages:	7</div><div style=3D"font-family:=
 &quot;Microsoft YaHei UI&quot;, Tahoma;">URL:&nbsp;<a href=3D"https://www=
.ietf.org/archive/id/draft-hwyh-ippm-ps-inband-flow-learning-00.txt" style=
=3D"text-decoration-line: none !important;">https://www.ietf.org/archive/i=
d/draft-hwyh-ippm-ps-inband-flow-learning-00.txt</a></div><div style=3D"fo=
nt-family: &quot;Microsoft YaHei UI&quot;, Tahoma;">Status:&nbsp;<a href=
=3D"https://datatracker.ietf.org/doc/draft-hwyh-ippm-ps-inband-flow-learni=
ng/" style=3D"text-decoration-line: none !important;">https://datatracker.=
ietf.org/doc/draft-hwyh-ippm-ps-inband-flow-learning/</a></div><div style=
=3D"font-family: &quot;Microsoft YaHei UI&quot;, Tahoma;">Htmlized:&nbsp;<=
a href=3D"https://datatracker.ietf.org/doc/html/draft-hwyh-ippm-ps-inband-=
flow-learning" style=3D"text-decoration-line: none !important;">https://da=
tatracker.ietf.org/doc/html/draft-hwyh-ippm-ps-inband-flow-learning</a></d=
iv><br style=3D"font-family: &quot;Microsoft YaHei UI&quot;, Tahoma;"><br =
style=3D"font-family: &quot;Microsoft YaHei UI&quot;, Tahoma;"><div style=
=3D"font-family: &quot;Microsoft YaHei UI&quot;, Tahoma;">Abstract:</div><=
div style=3D"font-family: &quot;Microsoft YaHei UI&quot;, Tahoma;">&nbsp;&=
nbsp; Alternate-Marking (coloring) provides a method to perform packet</di=
v><div style=3D"font-family: &quot;Microsoft YaHei UI&quot;, Tahoma;">&nbs=
p;&nbsp; loss, delay, and jitter measurements on live traffic.&nbsp; At th=
e same</div><div style=3D"font-family: &quot;Microsoft YaHei UI&quot;, Tah=
oma;">&nbsp;&nbsp; time, on-path telemetry techniques are used to enable t=
he collection</div><div style=3D"font-family: &quot;Microsoft YaHei UI&quo=
t;, Tahoma;">&nbsp;&nbsp; and correlation of performance information to fu=
rther support</div><div style=3D"font-family: &quot;Microsoft YaHei UI&quo=
t;, Tahoma;">&nbsp;&nbsp; autonomous network operations.&nbsp; However, ne=
twork operators still face</div><div style=3D"font-family: &quot;Microsoft=
 YaHei UI&quot;, Tahoma;">&nbsp;&nbsp; the challenge of inband flow identi=
fication in large scale</div><div style=3D"font-family: &quot;Microsoft Ya=
Hei UI&quot;, Tahoma;">&nbsp;&nbsp; deployment.&nbsp; This document addres=
ses the problems by introducing the</div><div style=3D"font-family: &quot;=
Microsoft YaHei UI&quot;, Tahoma;">&nbsp;&nbsp; real network scenarios, an=
d proposes the requirements of supporting</div><div style=3D"font-family: =
&quot;Microsoft YaHei UI&quot;, Tahoma;">&nbsp;&nbsp; inband flow learning=
 of flow information telemetry.</div></div><div><br></div><hr style=3D"wid=
th: 210px; height: 1px;" color=3D"#b5c4df" size=3D"1" align=3D"left">=0A<d=
iv><span><div style=3D"MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10pt=
"><span style=3D"color: rgb(192, 192, 192); font-family: Verdana; font-siz=
e: small;">-------------------------------------</span><br style=3D"color:=
 rgb(192, 192, 192); font-family: Verdana; font-size: small;"><span style=
=3D"color: rgb(192, 192, 192); font-family: Verdana; font-size: small;">=
=CD=F5=C3=F4=D1=A7/&nbsp;Wang&nbsp;Minxue</span><br style=3D"color: rgb(19=
2, 192, 192); font-family: Verdana; font-size: small;"><span style=3D"colo=
r: rgb(192, 192, 192); font-family: Verdana; font-size: small;">=D6=D0=B9=
=FA=D2=C6=B6=AF=CD=A8=D0=C5=D1=D0=BE=BF=D4=BA&nbsp;=BB=F9=B4=A1=CD=F8=C2=
=E7=BC=BC=CA=F5=D1=D0=BE=BF=CB=F9 / China Mobile Research Institute</span>=
<br style=3D"color: rgb(192, 192, 192); font-family: Verdana; font-size: s=
mall;"><span style=3D"color: rgb(192, 192, 192); font-family: Verdana; fon=
t-size: small;">=B5=D8=D6=B7: =B1=B1=BE=A9=CA=D0=CE=F7=B3=C7=C7=F8=D0=FB=
=CE=E4=C3=C5=CE=F7=B4=F3=BD=D632=BA=C5=B4=B4=D0=C2=B4=F3=CF=C3,100053</spa=
n><br style=3D"color: rgb(192, 192, 192); font-family: Verdana; font-size:=
 small;"><span style=3D"color: rgb(192, 192, 192); font-family: Verdana; f=
ont-size: small;">=B5=E7=BB=B0: 010-15801696688-33202</span><br style=3D"c=
olor: rgb(192, 192, 192); font-family: Verdana; font-size: small;"><span s=
tyle=3D"color: rgb(192, 192, 192); font-family: Verdana; font-size: small;=
">=B4=AB=D5=E6=A3=BA010-63601087</span><br style=3D"color: rgb(192, 192, 1=
92); font-family: Verdana; font-size: small;"><span style=3D"color: rgb(19=
2, 192, 192); font-family: Verdana; font-size: small;">Email:&nbsp;wangmin=
xue@chinamobile.com</span><br style=3D"color: rgb(192, 192, 192); font-fam=
ily: Verdana; font-size: small;"><div><span style=3D"color: rgb(192, 192, =
192); font-family: Verdana; font-size: small; background-color: transparen=
t;">-------------------------------------</span></div></div></span></div>=
=0A</body></html>
------=_001_NextPart332431420251_=------




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Subject: [ippm] I-D Action: draft-ietf-ippm-ioam-direct-export-06.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 Measurement WG of the IETF.

        Title           : In-situ OAM Direct Exporting
        Authors         : Haoyu Song
                          Barak Gafni
                          Tianran Zhou
                          Zhenbin Li
                          Frank Brockners
                          Shwetha Bhandari
                          Ramesh Sivakolundu
                          Tal Mizrahi
	Filename        : draft-ietf-ippm-ioam-direct-export-06.txt
	Pages           : 13
	Date            : 2021-08-08

Abstract:
   In-situ Operations, Administration, and Maintenance (IOAM) is used
   for recording and collecting operational and telemetry information.
   Specifically, IOAM allows telemetry data to be pushed into data
   packets while they traverse the network.  This document introduces a
   new IOAM option type called the Direct Export (DEX) option, which is
   used as a trigger for IOAM data to be directly exported or locally
   aggregated without being pushed into in-flight data packets.  The
   exporting method and format are outside the scope of this document.


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

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-direct-export-06

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ippm-ioam-direct-export-06


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



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Subject: [ippm] IOAM DEX: New Version
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Hi,

A new version of the IOAM direct exporting draft has been posted:
https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-direct-export-06

The changes since the previous version reflect the discussion in IETF 111.
The main changes:
- The optional fields are now indicated by IANA-allocated flags.
- Most of the text about the Hop Limit field was removed.

Please let me know if there are any comments.

Cheers,
Tal.


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From: "Frank Brockners (fbrockne)" <fbrockne@cisco.com>
To: Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>, "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
Thread-Topic: [ippm] Adoption call for IOAM deployment and integrity documents
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Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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Support the adoption of both documents (as author).

Cheers, Frank

From: ippm <ippm-bounces@ietf.org> On Behalf Of Tommy Pauly
Sent: Dienstag, 3. August 2021 18:29
To: IETF IPPM WG (ippm@ietf.org) <ippm@ietf.org>
Subject: [ippm] Adoption call for IOAM deployment and integrity documents

Hello IPPM,

As discussed in our meeting last week, we will be starting an adoption call=
 for two IOAM-related documents that have been raised as important dependen=
cies during the IESG review of IOAM-data.

This email begins a Working Group adoption call for two documents:

Integrity of In-situ OAM Data Fields
https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/
https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03=
.html

In-situ OAM Deployment
https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/
https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deploymen=
t-03

This call will last until Wednesday, August 18. Please reply to this email =
with your comments, and if you think these documents should be taken on by =
IPPM.

Best,
Tommy & Ian

--_000_DM8PR11MB56068F34B6A781C9170D8CD6DAF79DM8PR11MB5606namp_
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<p class=3D"MsoNormal">Support the adoption of both documents (as author).<=
o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Cheers, Frank<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b>From:</b> ippm &lt;ippm-bounces@ietf.org&gt; <b>O=
n Behalf Of </b>
Tommy Pauly<br>
<b>Sent:</b> Dienstag, 3. August 2021 18:29<br>
<b>To:</b> IETF IPPM WG (ippm@ietf.org) &lt;ippm@ietf.org&gt;<br>
<b>Subject:</b> [ippm] Adoption call for IOAM deployment and integrity docu=
ments<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Hello IPPM,<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">As discussed in our meeting last week, we will be st=
arting an adoption call for two IOAM-related documents that have been raise=
d as important dependencies during the IESG review of IOAM-data.<o:p></o:p>=
</p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">This email begins a Working Group adoption call for =
two documents:<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<div>
<p class=3D"MsoNormal">Integrity of In-situ OAM Data Fields<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/doc/draft-br=
ockners-ippm-ioam-data-integrity/">https://datatracker.ietf.org/doc/draft-b=
rockners-ippm-ioam-data-integrity/</a><o:p></o:p></p>
</div>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://www.ietf.org/archive/id/draft-bro=
ckners-ippm-ioam-data-integrity-03.html">https://www.ietf.org/archive/id/dr=
aft-brockners-ippm-ioam-data-integrity-03.html</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">In-situ OAM Deployment<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/doc/draft-br=
ockners-opsawg-ioam-deployment/">https://datatracker.ietf.org/doc/draft-bro=
ckners-opsawg-ioam-deployment/</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/doc/html/dra=
ft-brockners-opsawg-ioam-deployment-03">https://datatracker.ietf.org/doc/ht=
ml/draft-brockners-opsawg-ioam-deployment-03</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">This call will last until <b>Wednesday, August 18</b=
>. Please reply to this email with your comments, and if you think these do=
cuments should be taken on by IPPM.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Best,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Tommy &amp; Ian<o:p></o:p></p>
</div>
</div>
</div>
</body>
</html>

--_000_DM8PR11MB56068F34B6A781C9170D8CD6DAF79DM8PR11MB5606namp_--


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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>, "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
Thread-Topic: [ippm] Adoption call for IOAM deployment and integrity documents
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Date: Wed, 11 Aug 2021 02:32:43 +0000
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Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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--_000_BL3PR11MB573139FFA068E06D12C64738BFF89BL3PR11MB5731namp_
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Hi WG, Chairs,
I have been following the IOAM work as part of draft-gandhi-mpls-ioam.
Both of these documents (listed below) are useful and support the WG adopti=
on of them.
Thanks,
Rakesh


From: ippm <ippm-bounces@ietf.org> on behalf of Tommy Pauly <tpauly=3D40app=
le.com@dmarc.ietf.org>
Date: Tuesday, August 3, 2021 at 12:29 PM
To: IETF IPPM WG (ippm@ietf.org) <ippm@ietf.org>
Subject: [ippm] Adoption call for IOAM deployment and integrity documents
Hello IPPM,

As discussed in our meeting last week, we will be starting an adoption call=
 for two IOAM-related documents that have been raised as important dependen=
cies during the IESG review of IOAM-data.

This email begins a Working Group adoption call for two documents:

Integrity of In-situ OAM Data Fields
https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/
https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03=
.html

In-situ OAM Deployment
https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/
https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deploymen=
t-03

This call will last until Wednesday, August 18. Please reply to this email =
with your comments, and if you think these documents should be taken on by =
IPPM.

Best,
Tommy & Ian

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<p class=3D"MsoNormal">Hi WG, Chairs,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">I have been following the IOAM work as part of draft-gandhi-mpls-i=
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<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
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WG adoption of them.
<o:p></o:p></p>
<p class=3D"MsoNormal">Thanks,<o:p></o:p></p>
<p class=3D"MsoNormal">Rakesh<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>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><b><span style=3D"fon=
t-size:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">ippm &lt;ippm-bounc=
es@ietf.org&gt; on behalf of Tommy Pauly &lt;tpauly=3D40apple.com@dmarc.iet=
f.org&gt;<br>
<b>Date: </b>Tuesday, August 3, 2021 at 12:29 PM<br>
<b>To: </b>IETF IPPM WG (ippm@ietf.org) &lt;ippm@ietf.org&gt;<br>
<b>Subject: </b>[ippm] Adoption call for IOAM deployment and integrity docu=
ments<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal">Hello IPPM,<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">As discussed in our meeting last week, we will be st=
arting an adoption call for two IOAM-related documents that have been raise=
d as important dependencies during the IESG review of IOAM-data.<o:p></o:p>=
</p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">This email begins a Working Group adoption call for =
two documents:<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<div>
<p class=3D"MsoNormal">Integrity of In-situ OAM Data Fields<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/doc/draft-br=
ockners-ippm-ioam-data-integrity/">https://datatracker.ietf.org/doc/draft-b=
rockners-ippm-ioam-data-integrity/</a><o:p></o:p></p>
</div>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://www.ietf.org/archive/id/draft-bro=
ckners-ippm-ioam-data-integrity-03.html">https://www.ietf.org/archive/id/dr=
aft-brockners-ippm-ioam-data-integrity-03.html</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">In-situ OAM Deployment<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/doc/draft-br=
ockners-opsawg-ioam-deployment/">https://datatracker.ietf.org/doc/draft-bro=
ckners-opsawg-ioam-deployment/</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/doc/html/dra=
ft-brockners-opsawg-ioam-deployment-03">https://datatracker.ietf.org/doc/ht=
ml/draft-brockners-opsawg-ioam-deployment-03</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">This call will last until <b>Wednesday, August 18</b=
>. Please reply to this email with your comments, and if you think these do=
cuments should be taken on by IPPM.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Best,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Tommy &amp; Ian<o:p></o:p></p>
</div>
</div>
</body>
</html>

--_000_BL3PR11MB573139FFA068E06D12C64738BFF89BL3PR11MB5731namp_--


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From: "Srihari Raghavan (srihari)" <srihari@cisco.com>
To: Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>, "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
Thread-Topic: [ippm] Adoption call for IOAM deployment and integrity documents
Thread-Index: AQHXiISxBmA/vs7xXU6Npxsjt/jkRqtuBJyA
Date: Wed, 11 Aug 2021 02:58:14 +0000
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Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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--_000_A4BFF584D0244F8688F9EE5A1F81CA2Eciscocom_--


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From: Tal Mizrahi <tal.mizrahi.phd@gmail.com>
Date: Wed, 11 Aug 2021 09:11:57 +0300
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To: Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>
Cc: "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
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Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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I support the adoption of both drafts (as a co-author).

Both drafts have been discussed by the WG, and both have been
discussed in the IESG review of the IOAM data draft.

Cheers,
Tal.



On Tue, Aug 3, 2021 at 7:29 PM Tommy Pauly
<tpauly=40apple.com@dmarc.ietf.org> wrote:
>
> Hello IPPM,
>
> As discussed in our meeting last week, we will be starting an adoption call for two IOAM-related documents that have been raised as important dependencies during the IESG review of IOAM-data.
>
> This email begins a Working Group adoption call for two documents:
>
> Integrity of In-situ OAM Data Fields
> https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/
> https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03.html
>
> In-situ OAM Deployment
> https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/
> https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deployment-03
>
> This call will last until Wednesday, August 18. Please reply to this email with your comments, and if you think these documents should be taken on by IPPM.
>
> Best,
> Tommy & Ian
> _______________________________________________
> ippm mailing list
> ippm@ietf.org
> https://www.ietf.org/mailman/listinfo/ippm


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From: "Vengada Prasad Govindan (venggovi)" <venggovi@cisco.com>
To: Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>, "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
Thread-Topic: [ippm] Adoption call for IOAM deployment and integrity documents
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Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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From nobody Wed Aug 11 03:33:57 2021
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Date: Wed, 11 Aug 2021 12:33:40 +0200 (CEST)
From: Justin Iurman <justin.iurman@uliege.be>
Reply-To: Justin Iurman <justin.iurman@uliege.be>
To: Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>
Cc: "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
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Thread-Topic: Adoption call for IOAM deployment and integrity documents
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ippm/45QbzTOQCiqcV8CROTgaXpstcLU>
Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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I support the adoption of both drafts (mainly as a developer). I do believe that the deployment draft is a good summary and entry point for IOAM while the integrity draft addresses security concerns raised previously.

Thanks,
Justin


> Hello IPPM,
> 
> As discussed in our meeting last week, we will be starting an adoption call for
> two IOAM-related documents that have been raised as important dependencies
> during the IESG review of IOAM-data.
> 
> This email begins a Working Group adoption call for two documents:
> 
> Integrity of In-situ OAM Data Fields
> [ https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/ |
> https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/ ]
> [
> https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03.html
> |
> https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03.html
> ]
> 
> In-situ OAM Deployment
> [ https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/ |
> https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/ ]
> [
> https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deployment-03
> |
> https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deployment-03
> ]
> 
> This call will last until Wednesday, August 18 . Please reply to this email with
> your comments, and if you think these documents should be taken on by IPPM.
> 
> Best,
> Tommy & Ian
> 
> _______________________________________________
> ippm mailing list
> ippm@ietf.org
> https://www.ietf.org/mailman/listinfo/ippm


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From: "Youell, Stephen" <stephen.youell@jpmorgan.com>
To: "ippm@ietf.org" <ippm@ietf.org>
Thread-Topic: Need your help and support: FW: [ippm] Adoption call for IOAM deployment and integrity documents
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Subject: Re: [ippm] Need your help and support: FW: Adoption call for IOAM deployment and integrity documents
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I support the adoption of both drafts - as co-author of a draft on which the=
se are referenced (sfc-proof-of-transit -> ippm-ioam-data).

Cheers,
Steve


From: ippm <ippm-bounces@ietf.org<mailto:ippm-bounces@ietf.org>> On Behalf O=
f Tommy Pauly
Sent: Dienstag, 3. August 2021 18:29
To: IETF IPPM WG (ippm@ietf.org<mailto:ippm@ietf.org>) <ippm@ietf.org<mailto=
:ippm@ietf.org>>
Subject: [ippm] Adoption call for IOAM deployment and integrity documents

Hello IPPM,

As discussed in our meeting last week, we will be starting an adoption call=
 for two IOAM-related documents that have been raised as important dependenc=
ies during the IESG review of IOAM-data.

This email begins a Working Group adoption call for two documents:

Integrity of In-situ OAM Data Fields
https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/<h=
ttps://secureweb.jpmchase.net/readonly/https:/datatracker.ietf.org/doc/draft=
-brockners-ippm-ioam-data-integrity/>
https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03.=
html<https://secureweb.jpmchase.net/readonly/https:/www.ietf.org/archive/id/=
draft-brockners-ippm-ioam-data-integrity-03.html>

In-situ OAM Deployment
https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/<htt=
ps://secureweb.jpmchase.net/readonly/https:/datatracker.ietf.org/doc/draft-b=
rockners-opsawg-ioam-deployment/>
https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deployment=
-03<https://secureweb.jpmchase.net/readonly/https:/datatracker.ietf.org/doc/=
html/draft-brockners-opsawg-ioam-deployment-03>

This call will last until Wednesday, August 18. Please reply to this email w=
ith your comments, and if you think these documents should be taken on by IP=
PM.

Best,
Tommy & Ian

This message is confidential and subject to terms at: https://www.jpmorgan.c=
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US">I support the adoption of bot=
h drafts &#8211; as co-author of a draft on which these are referenced (s=
fc-proof-of-transit -&gt; ippm-ioam-data).<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Cheers,<o:p></o:p></span></p>=

<p class=3D"MsoNormal"><span lang=3D"EN-US">Steve<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0c=
m 4.0pt">
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0c=
m 0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> ippm &lt;<a href=3D"mailto:ippm-bounces@ietf.org">ippm-bounce=
s@ietf.org</a>&gt;
<b>On Behalf Of </b>Tommy Pauly<br>
<b>Sent:</b> Dienstag, 3. August 2021 18:29<br>
<b>To:</b> IETF IPPM WG (<a href=3D"mailto:ippm@ietf.org">ippm@ietf.org</=
a>) &lt;<a href=3D"mailto:ippm@ietf.org">ippm@ietf.org</a>&gt;<br>
<b>Subject:</b> [ippm] Adoption call for IOAM deployment and integrity do=
cuments<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hello IPPM,<o:p></o:p></span>=
</p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">As discussed in our meeting l=
ast week, we will be starting an adoption call for two IOAM-related docum=
ents that have been raised as important dependencies during the IESG revi=
ew of IOAM-data.<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>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a Working G=
roup adoption call for two documents:<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>
<div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Integrity of In-situ OAM Data=
 Fields<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://datatracke=
r.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/">https://datatra=
cker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/</a><o:p></o:p=
></span></p>
</div>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://www.ietf.o=
rg/archive/id/draft-brockners-ippm-ioam-data-integrity-03.html">https://w=
ww.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03.html</=
a><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>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">In-situ OAM Deployment<o:p></=
o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://datatracke=
r.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/">https://datatrack=
er.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/</a><o:p></o:p></s=
pan></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://datatracke=
r.ietf.org/doc/html/draft-brockners-opsawg-ioam-deployment-03">https://da=
tatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deployment-03</a>=
<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>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This call will last until <b>=
Wednesday, August 18</b>. Please reply to this email with your comments, =
and if you think these documents should be taken on by IPPM.<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>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Best,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Tommy &amp; Ian<o:p></o:p></s=
pan></p>
</div>
</div>
</div>
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From: "Ramesh Sivakolundu (sramesh)" <sramesh@cisco.com>
To: Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>, "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
Thread-Topic: [ippm] Adoption call for IOAM deployment and integrity documents
Thread-Index: AQHXiISyiTQtB5CB30iLZuTsmi1bRKtuCDsA
Date: Wed, 11 Aug 2021 15:41:12 +0000
Message-ID: <2333E8AD-0849-43D9-8D94-9D72E3260288@cisco.com>
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Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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From: Roman Danyliw <rdd@cert.org>
To: "Frank Brockners (fbrockne)" <fbrockne=40cisco.com@dmarc.ietf.org>, The IESG <iesg@ietf.org>
CC: Al Morton <acm@research.att.com>, "ippm-chairs@ietf.org" <ippm-chairs@ietf.org>, "draft-ietf-ippm-ioam-data@ietf.org" <draft-ietf-ippm-ioam-data@ietf.org>, "ippm@ietf.org" <ippm@ietf.org>
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From nobody Wed Aug 11 19:24:50 2021
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From: Tianran Zhou <zhoutianran@huawei.com>
To: Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>, "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
Thread-Topic: [ippm] Adoption call for IOAM deployment and integrity documents
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Date: Thu, 12 Aug 2021 02:24:38 +0000
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Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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--_000_ed7b298fd91a4607811a8f5f7eab6ef8huaweicom_
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Hi WG,

I support the adoption of both two drafts.

Cheers,
Tianran

From: ippm [mailto:ippm-bounces@ietf.org] On Behalf Of Tommy Pauly
Sent: Wednesday, August 4, 2021 12:29 AM
To: IETF IPPM WG (ippm@ietf.org) <ippm@ietf.org>
Subject: [ippm] Adoption call for IOAM deployment and integrity documents

Hello IPPM,

As discussed in our meeting last week, we will be starting an adoption call=
 for two IOAM-related documents that have been raised as important dependen=
cies during the IESG review of IOAM-data.

This email begins a Working Group adoption call for two documents:

Integrity of In-situ OAM Data Fields
https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/
https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03=
.html

In-situ OAM Deployment
https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/
https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deploymen=
t-03

This call will last until Wednesday, August 18. Please reply to this email =
with your comments, and if you think these documents should be taken on by =
IPPM.

Best,
Tommy & Ian

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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D">Hi WG,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;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;,sans-serif;color:#1F497D">I support the adoption of both two dr=
afts.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;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;,sans-serif;color:#1F497D">Cheers,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D">Tianran<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt;font-family:&quot=
;Calibri&quot;,sans-serif">From:</span></b><span style=3D"font-size:11.0pt;=
font-family:&quot;Calibri&quot;,sans-serif"> ippm [mailto:ippm-bounces@ietf=
.org]
<b>On Behalf Of </b>Tommy Pauly<br>
<b>Sent:</b> Wednesday, August 4, 2021 12:29 AM<br>
<b>To:</b> IETF IPPM WG (ippm@ietf.org) &lt;ippm@ietf.org&gt;<br>
<b>Subject:</b> [ippm] Adoption call for IOAM deployment and integrity docu=
ments<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Hello IPPM,<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">As discussed in our meeting last week, we will be st=
arting an adoption call for two IOAM-related documents that have been raise=
d as important dependencies during the IESG review of IOAM-data.<o:p></o:p>=
</p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">This email begins a Working Group adoption call for =
two documents:<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<div>
<p class=3D"MsoNormal">Integrity of In-situ OAM Data Fields<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/doc/draft-br=
ockners-ippm-ioam-data-integrity/">https://datatracker.ietf.org/doc/draft-b=
rockners-ippm-ioam-data-integrity/</a><o:p></o:p></p>
</div>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://www.ietf.org/archive/id/draft-bro=
ckners-ippm-ioam-data-integrity-03.html">https://www.ietf.org/archive/id/dr=
aft-brockners-ippm-ioam-data-integrity-03.html</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">In-situ OAM Deployment<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/doc/draft-br=
ockners-opsawg-ioam-deployment/">https://datatracker.ietf.org/doc/draft-bro=
ckners-opsawg-ioam-deployment/</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/doc/html/dra=
ft-brockners-opsawg-ioam-deployment-03">https://datatracker.ietf.org/doc/ht=
ml/draft-brockners-opsawg-ioam-deployment-03</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">This call will last until <b>Wednesday, August 18</b=
>. Please reply to this email with your comments, and if you think these do=
cuments should be taken on by IPPM.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Best,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Tommy &amp; Ian<o:p></o:p></p>
</div>
</div>
</body>
</html>

--_000_ed7b298fd91a4607811a8f5f7eab6ef8huaweicom_--


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Hi all,

Support WG adoption of these two IOAM documents.
For Section 5 of IOAM deployment draft - IOAM Encapsulations, suggest to add BIER(draft-xzlnp-bier-ioam) into the scope.

Best Regards,
Xiao Min
------------------原始邮件------------------
发件人：TommyPauly
收件人：IETF IPPM WG (ippm@ietf.org);
日 期 ：2021年08月04日 00:29
主 题 ：[ippm] Adoption call for IOAM deployment and integrity documents
_______________________________________________
ippm mailing list
ippm@ietf.org
https://www.ietf.org/mailman/listinfo/ippm

Hello IPPM,
As discussed in our meeting last week, we will be starting an adoption call for two IOAM-related documents that have been raised as important dependencies during the IESG review of IOAM-data.
This email begins a Working Group adoption call for two documents:
Integrity of In-situ OAM Data Fields
https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/
https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03.html
In-situ OAM Deployment
https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/
https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deployment-03
This call will last until Wednesday, August 18. Please reply to this email with your comments, and if you think these documents should be taken on by IPPM.
Best,
Tommy & Ian
--=====_003_next=====--

--=====_001_next=====--


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From: "Wangyali(Yali,Data Communication Standards and Patents Dept)" <wangyali11@huawei.com>
To: Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>, "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
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Hi Tommy and Ian,

Having read these two drafts, which are significant for IOAM implementation=
 and security. I support the adoption of both two drafts.

Best,
Yali

From: ippm [mailto:ippm-bounces@ietf.org] On Behalf Of Tommy Pauly
Sent: Wednesday, August 4, 2021 12:29 AM
To: IETF IPPM WG (ippm@ietf.org) <ippm@ietf.org>
Subject: [ippm] Adoption call for IOAM deployment and integrity documents

Hello IPPM,

As discussed in our meeting last week, we will be starting an adoption call=
 for two IOAM-related documents that have been raised as important dependen=
cies during the IESG review of IOAM-data.

This email begins a Working Group adoption call for two documents:

Integrity of In-situ OAM Data Fields
https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/
https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03=
.html

In-situ OAM Deployment
https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/
https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deploymen=
t-03

This call will last until Wednesday, August 18. Please reply to this email =
with your comments, and if you think these documents should be taken on by =
IPPM.

Best,
Tommy & Ian

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<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D">Hi Tommy and Ian,<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;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;,sans-serif;color:#1F497D">Having read these two drafts, which a=
re significant for IOAM implementation and security. I support the adoption=
 of both two drafts.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;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;,sans-serif;color:#1F497D">Best,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D">Yali<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt;font-family:&quot=
;Calibri&quot;,sans-serif">From:</span></b><span style=3D"font-size:11.0pt;=
font-family:&quot;Calibri&quot;,sans-serif"> ippm [mailto:ippm-bounces@ietf=
.org]
<b>On Behalf Of </b>Tommy Pauly<br>
<b>Sent:</b> Wednesday, August 4, 2021 12:29 AM<br>
<b>To:</b> IETF IPPM WG (ippm@ietf.org) &lt;ippm@ietf.org&gt;<br>
<b>Subject:</b> [ippm] Adoption call for IOAM deployment and integrity docu=
ments<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Hello IPPM,<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">As discussed in our meeting last week, we will be st=
arting an adoption call for two IOAM-related documents that have been raise=
d as important dependencies during the IESG review of IOAM-data.<o:p></o:p>=
</p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">This email begins a Working Group adoption call for =
two documents:<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<div>
<p class=3D"MsoNormal">Integrity of In-situ OAM Data Fields<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/doc/draft-br=
ockners-ippm-ioam-data-integrity/">https://datatracker.ietf.org/doc/draft-b=
rockners-ippm-ioam-data-integrity/</a><o:p></o:p></p>
</div>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://www.ietf.org/archive/id/draft-bro=
ckners-ippm-ioam-data-integrity-03.html">https://www.ietf.org/archive/id/dr=
aft-brockners-ippm-ioam-data-integrity-03.html</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">In-situ OAM Deployment<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/doc/draft-br=
ockners-opsawg-ioam-deployment/">https://datatracker.ietf.org/doc/draft-bro=
ckners-opsawg-ioam-deployment/</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/doc/html/dra=
ft-brockners-opsawg-ioam-deployment-03">https://datatracker.ietf.org/doc/ht=
ml/draft-brockners-opsawg-ioam-deployment-03</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">This call will last until <b>Wednesday, August 18</b=
>. Please reply to this email with your comments, and if you think these do=
cuments should be taken on by IPPM.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Best,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Tommy &amp; Ian<o:p></o:p></p>
</div>
</div>
</body>
</html>

--_000_9b20b324fad14aa48edc72e44de4c7d9huaweicom_--


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From: "Frank Brockners (fbrockne)" <fbrockne@cisco.com>
To: Roman Danyliw <rdd@cert.org>, "Frank Brockners (fbrockne)" <fbrockne=40cisco.com@dmarc.ietf.org>, The IESG <iesg@ietf.org>
CC: Al Morton <acm@research.att.com>, "ippm-chairs@ietf.org" <ippm-chairs@ietf.org>, "draft-ietf-ippm-ioam-data@ietf.org" <draft-ietf-ippm-ioam-data@ietf.org>, "ippm@ietf.org" <ippm@ietf.org>
Thread-Topic: Roman Danyliw's Discuss on draft-ietf-ippm-ioam-data-12: (with DISCUSS and COMMENT)
Thread-Index: AQHXIL8zQXHnJPuvGUu0sS7mP5SdHarG/vBAgKihvQCAAQQp4A==
Date: Thu, 12 Aug 2021 12:21:40 +0000
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Subject: Re: [ippm] Roman Danyliw's Discuss on draft-ietf-ippm-ioam-data-12: (with DISCUSS and COMMENT)
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From: Roman Danyliw <rdd@cert.org>
To: "Frank Brockners (fbrockne)" <fbrockne@cisco.com>, "Frank Brockners (fbrockne)" <fbrockne=40cisco.com@dmarc.ietf.org>, The IESG <iesg@ietf.org>
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Subject: Re: [ippm] Roman Danyliw's Discuss on draft-ietf-ippm-ioam-data-12: (with DISCUSS and COMMENT)
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From nobody Thu Aug 12 10:18:04 2021
Return-Path: <haoyu.song@futurewei.com>
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From: Haoyu Song <haoyu.song@futurewei.com>
To: IETF IPPM WG <ippm@ietf.org>
Thread-Topic: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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IPPM WG,

After reviewing the drafts, I don't think the integrity draft is ready to b=
e adopted. The reasons are as follows:



  1.  According to the IOAM data draft, IOAM is intended to be used in a li=
mited domain managed by a single operator. If so, the integrity is not nece=
ssary. I don't think the discussion is consistent between the docs and clea=
r.


"The current [I-D.ietf-ippm-ioam-data] assumes that IOAM is deployed
   in limited domains, where an operator has means to select, monitor,
   and control the access to all the networking devices, making the
   domain a trusted network.  As such, IOAM tracing data is carried in
   the packets in clear and there are no protections against any node or
   middlebox tampering with the data.  As a consequence, IOAM tracing
   data collected in an untrusted or semi-trusted environments cannot be
   trusted for critical operational decisions.  Any rogue or
   unauthorized change to IOAM data fields in a user packet cannot be
   detected."


  1.  Is there any real implementation and evaluation on the performance im=
pact of the method, especially for the HBH trace option? My experience told=
 me this is not a simple task. Without solid evidence, we may end up with a=
 proposal nobody can actually use.  The purpose of IOAM is to faithfully ca=
pture the user-traffic's forwarding behavior and performance. If added func=
tions significantly change the forwarding performance, what's the point to =
apply it? For this, I suggest to get expert review  from ASIC/NP vendors to=
 give evaluation on feasibility and performance impact.
  2.  The draft suggests to sample packet to apply the integrity protection=
 to mitigate the potential performance impact. This is problematic: (1) dep=
ending on the performance difference on the packets with or without protect=
ion, significant jitter and out-of-order packet delivery may occur, which i=
s detrimental to the user traffic flow (again, we need evaluation on this);=
 (2) More important, the sampling itself defies the purpose. Antagonists ca=
n easily just tamper the unprotected packets. Is it necessary to introduce =
a heavy method to just provide inadequate and easy-to-elude protection?
  3.  If data integrity becomes a concern, why not data confidentiality? To=
 me, that's more important. At least there are already multiple checksums i=
n the packet to make data tampering difficult. But leaking the data is a mo=
re serious threat. Of course, if we insist IOAM would be used just in a lim=
ited domain, then none is necessary. My point is: either both are needed or=
 none.
  4.  I'm not sure if it's already done, I suggest to engage some security =
experts to review this draft. Because this is not a light mechanism, it is =
very important to make it right before going any further.



Best regards,
Haoyu





From: ippm [mailto:ippm-bounces@ietf.org] On Behalf Of Tommy Pauly

Sent: Wednesday, August 4, 2021 12:29 AM

To: IETF IPPM WG (ippm@ietf.org<mailto:ippm@ietf.org>) <ippm@ietf.org><mail=
to:&lt;ippm@ietf.org&gt;>

Subject: [ippm] Adoption call for IOAM deployment and integrity documents



Hello IPPM,



As discussed in our meeting last week, we will be starting an adoption call=
 for two IOAM-related documents that have been raised as important dependen=
cies during the IESG review of IOAM-data.



This email begins a Working Group adoption call for two documents:



Integrity of In-situ OAM Data Fields

https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/

https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03=
.html



In-situ OAM Deployment

https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/

https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deploymen=
t-03



This call will last until Wednesday, August 18. Please reply to this email =
with your comments, and if you think these documents should be taken on by =
IPPM.



Best,

Tommy & Ian



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<p class=3D"MsoNormal">IPPM WG,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">After reviewing the drafts, I don&#8217;t think the =
integrity draft is ready to be adopted. The reasons are as follows:<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>
<ol style=3D"margin-top:0in" start=3D"1" type=3D"1">
<li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l0 level1 =
lfo1">According to the IOAM data draft, IOAM is intended to be used in a li=
mited domain managed by a single operator. If so, the integrity is not nece=
ssary. I don&#8217;t think the discussion
 is consistent between the docs and clear. <o:p></o:p></li></ol>
<p class=3D"MsoListParagraph">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"text-indent:.25in">&#8220;The current [I-D.=
ietf-ippm-ioam-data] assumes that IOAM is deployed<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp; in limited domains, where an operator h=
as means to select, monitor,<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp; and control the access to all the netwo=
rking devices, making the<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp; domain a trusted network.&nbsp; As such=
, IOAM tracing data is carried in<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp; the packets in clear and there are no p=
rotections against any node or<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp; middlebox tampering with the data.&nbsp=
; As a consequence, IOAM tracing<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp; data collected in an untrusted or semi-=
trusted environments cannot be<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp; trusted for critical operational decisi=
ons.&nbsp; Any rogue or<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp; unauthorized change to IOAM data fields=
 in a user packet cannot be<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp; detected.&#8221;<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<ol style=3D"margin-top:0in" start=3D"2" type=3D"1">
<li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l0 level1 =
lfo1">Is there any real implementation and evaluation on the performance im=
pact of the method, especially for the HBH trace option? My experience told=
 me this is not a simple task. Without
 solid evidence, we may end up with a proposal nobody can actually use.&nbs=
p; The purpose of IOAM is to faithfully capture the user-traffic&#8217;s fo=
rwarding behavior and performance. If added functions significantly change =
the forwarding performance, what&#8217;s the point
 to apply it? For this, I suggest to get expert review &nbsp;from ASIC/NP v=
endors to give evaluation on feasibility and performance impact.<o:p></o:p>=
</li><li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l0 le=
vel1 lfo1">The draft suggests to sample packet to apply the integrity prote=
ction to mitigate the potential performance impact. This is problematic: (1=
) depending on the performance difference
 on the packets with or without protection, significant jitter and out-of-o=
rder packet delivery may occur, which is detrimental to the user traffic fl=
ow (again, we need evaluation on this); (2) More important, the sampling it=
self defies the purpose. Antagonists
 can easily just tamper the unprotected packets. Is it necessary to introdu=
ce a heavy method to just provide inadequate and easy-to-elude protection?<=
o:p></o:p></li><li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-=
list:l0 level1 lfo1">If data integrity becomes a concern, why not data conf=
identiality? To me, that&#8217;s more important. At least there are already=
 multiple checksums in the packet to make data tampering
 difficult. But leaking the data is a more serious threat. Of course, if we=
 insist IOAM would be used just in a limited domain, then none is necessary=
. My point is: either both are needed or none. &nbsp;<o:p></o:p></li><li cl=
ass=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l0 level1 lfo1">=
I&#8217;m not sure if it&#8217;s already done, I suggest to engage some sec=
urity experts to review this draft. Because this is not a light mechanism, =
it is very important to make it right before
 going any further.<o:p></o:p></li></ol>
<p class=3D"MsoListParagraph"><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">Haoyu<o:p></o:p></p>
<p class=3D"MsoListParagraph"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoListParagraph"><o:p>&nbsp;</o:p></p>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529">From: ippm [<a href=3D"mailto:ippm-bounces@ietf.org=
">mailto:ippm-bounces@ietf.org</a>] On Behalf Of Tommy Pauly<o:p></o:p></sp=
an></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529">Sent: Wednesday, August 4, 2021 12:29 AM<o:p></o:p>=
</span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529">To: IETF IPPM WG (<a href=3D"mailto:ippm@ietf.org">=
<span style=3D"color:#337AB7">ippm@ietf.org</span></a>) <a href=3D"mailto:&=
amp;lt;ippm@ietf.org&amp;gt;"><span style=3D"color:#337AB7">&lt;ippm@ietf.o=
rg&gt;</span></a><o:p></o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529">Subject: [ippm] Adoption call for IOAM deployment a=
nd integrity documents<o:p></o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529">Hello IPPM,<o:p></o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529">As discussed in our meeting last week, we will be s=
tarting an adoption call for two IOAM-related documents that have been rais=
ed as important dependencies during the IESG review of IOAM-data.<o:p></o:p=
></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529">This email begins a Working Group adoption call for=
 two documents:<o:p></o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529">Integrity of In-situ OAM Data Fields<o:p></o:p></sp=
an></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529"><a href=3D"https://datatracker.ietf.org/doc/draft-b=
rockners-ippm-ioam-data-integrity/"><span style=3D"color:#337AB7">https://d=
atatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/</span></a=
><o:p></o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529"><a href=3D"https://www.ietf.org/archive/id/draft-br=
ockners-ippm-ioam-data-integrity-03.html"><span style=3D"color:#337AB7">htt=
ps://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03.ht=
ml</span></a><o:p></o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529">In-situ OAM Deployment<o:p></o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529"><a href=3D"https://datatracker.ietf.org/doc/draft-b=
rockners-opsawg-ioam-deployment/"><span style=3D"color:#337AB7">https://dat=
atracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/</span></a><o:=
p></o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529"><a href=3D"https://datatracker.ietf.org/doc/html/dr=
aft-brockners-opsawg-ioam-deployment-03"><span style=3D"color:#337AB7">http=
s://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deployment-03=
</span></a><o:p></o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529">This call will last until Wednesday, August 18. Ple=
ase reply to this email with your comments, and if you think these document=
s should be taken on by IPPM.<o:p></o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529"><o:p>&nbsp;</o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529">Best,<o:p></o:p></span></pre>
<pre style=3D"background:white"><span style=3D"font-size:9.0pt;font-family:=
Consolas;color:#212529">Tommy &amp; Ian<o:p></o:p></span></pre>
<p class=3D"MsoListParagraph"><o:p>&nbsp;</o:p></p>
</div>
</body>
</html>

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To: "MORTON JR., AL" <acmorton@att.com>
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Subject: Re: [ippm] Proposed changes to default settings in the Capacity metric load adjustment algorithm
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Hello IPPM,

If you have any comments about this change, please send them to this list
no later than 24 August.

On Tue, Aug 3, 2021 at 3:01 PM MORTON JR., AL <acmorton@att.com> wrote:

> IPPM,
>
> I want to point out that some recent results conducted by others
> encouraged us to test some additional values for seq error threshold and a
> wider value range of values for consecutive errored status (during feedback
> intervals).  We discovered that we would like to revise the default values
> to make the load adjustment a little less-sensitive to
> non-congestion-related loss and protect the fast ramp-up from ending
> prematurely. For example, a very short burst of lost packets spanning the
> boundary between two feedback intervals is currently sufficient to end fast
> ramp-up.
>
> The current table in 8.1 contains:
> +--------------+-------------+--------------+-----------------------+
> | Parameter    | Default     | Tested Range | Expected Safe Range   |
> |              |             | or values    | (not entirely tested, |
> |              |             |              | other values NOT      |
> |              |             |              | RECOMMENDED)          |
> +--------------+-------------+--------------+-----------------------+
> ...
> +--------------+-------------+--------------+-----------------------+
> | sequence     | 0           | 0, 100       | same as tested        |
> | error        |             |              |                       |
> | threshold    |             |              |                       |
> +--------------+-------------+--------------+-----------------------+
> | consecutive  | 2           | 2            | Use values >1 to      |
> | errored      |             |              | avoid misinterpreting |
> | status       |             |              | transient loss        |
> +--------------+-------------+--------------+-----------------------+
>
>
> The revised table rows would look like this:
>
> +--------------+-------------+--------------+-----------------------+
> | Parameter    | Default     | Tested Range | Expected Safe Range   |
> |              |             | or values    | (not entirely tested, |
> |              |             |              | other values NOT      |
> |              |             |              | RECOMMENDED)          |
> +--------------+-------------+--------------+-----------------------+
> ...
> +--------------+-------------+--------------+-----------------------+
> | sequence     | 10          | 0,1,5,10,100 | same as tested        |
> | error        |             |              |                       |
> | threshold    |             |              |                       |
> +--------------+-------------+--------------+-----------------------+
> | consecutive  | 3           | 2,3,4,5      | Use values >1 to      |
> | errored      |             |              | avoid misinterpreting |
> | status       |             |              | transient loss        |
> +--------------+-------------+--------------+-----------------------+
>
> Somehow, persistent non-congestion-related loss had mostly eluded our
> previous tests. But our goal has been to provide default values that will
> work in automated testing run by anyone in any implementation or
> circumstances - not just ~expert users and those who run the udpst utility.
>
> So we'd like to change default values for:
>
>   seq error threshold         from 0 to 10
>   consecutive errored status  from 2 to  3
>
> and update our tested range/values column as well.
>
> Al
>
>

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From: Martin Duke <martin.h.duke@gmail.com>
Date: Thu, 12 Aug 2021 11:26:19 -0700
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Subject: [ippm] RFC 8321 and 8889
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--000000000000af1d3905c960df7a
Content-Type: text/plain; charset="UTF-8"

Hello IPPM,

(with AD hat on)

The IESG is currently considering
https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-08
which is the implementation of RFC 8321
<https://www.rfc-editor.org/rfc/rfc8321.html> and 8889
<https://www.rfc-editor.org/rfc/rfc8889.html> techniques in an IPv6
framework. IIUC, this is very much how things are "supposed to work" --
measurement definitions and methodology are done by IPPM, and the
protocol-specific instantiations are in the respective working groups.

However, there are complications in that 8321 and 8889 are Experimental
RFCs, and the ipv6-alt-mark draft is a Proposed Standard. This has resulted
in text from 8321/8889 going into ipv6-alt-mark so that it can be elevated
to PS. I'm told that, if the status quo holds, other drafts will reference
ipv6-alt-mark to avoid a downref. This seems suboptimal.

I would prefer that *we take one of the two following actions*:
1) If the WG has consensus that we are comfortable that there is enough
experience with 8321 and/or 8889 to elevate them to PS, I can initiate a
document action to change their status.

2) If there is no such consensus, ipv6-alt-mark should be Experimental.

In either case, the draft can probably lose some of the duplicate text.

Logically, there is a third option -- that the bits of the RFCs copied in
the draft are mature enough to be a standard, but that the others aren't.
Though I'm not an expert, I doubt this is the case. But if people believe
it to be true, we'll have to come up with new options.

I would be grateful for the working group's thoughts about these documents
and the ideas therein. Is it reasonable for people to read and reflect on
this by 26 August (2 weeks from today?)

Thanks,
Martin

--000000000000af1d3905c960df7a
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Hello IPPM,</div><div><br></div><div>(with AD hat on)=
<br></div><div><br></div><div>The IESG is currently considering</div><div><=
a href=3D"https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-ma=
rk-08">https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-=
08</a></div><div></div><div>which is the implementation of RFC <a href=3D"h=
ttps://www.rfc-editor.org/rfc/rfc8321.html">8321</a> and <a href=3D"https:/=
/www.rfc-editor.org/rfc/rfc8889.html">8889</a> techniques in an IPv6 framew=
ork. IIUC, this is very much how things are &quot;supposed to work&quot; --=
 measurement definitions and methodology are done by IPPM, and the protocol=
-specific instantiations are in the respective working groups.</div><div><b=
r></div><div>However, there are complications in that 8321 and 8889 are Exp=
erimental RFCs, and the ipv6-alt-mark draft is a Proposed Standard. This ha=
s resulted in text from 8321/8889 going into ipv6-alt-mark so that it can b=
e elevated to PS. I&#39;m told that, if the status quo holds, other drafts =
will reference ipv6-alt-mark to avoid a downref. This seems suboptimal.</di=
v><div><br></div><div>I would prefer that <b>we take one of the two followi=
ng actions</b>:</div><div>1) If the WG has consensus that we are comfortabl=
e that there is enough experience with 8321 and/or 8889 to elevate them to =
PS, I can initiate a document action to change their status.</div><div><br>=
</div><div>2) If there is no such consensus, ipv6-alt-mark should be Experi=
mental.</div><div><br></div><div>In either case, the draft can probably los=
e some of the duplicate text.</div><div><br></div><div>Logically, there is =
a third option -- that the bits of the RFCs copied in the draft are mature =
enough to be a standard, but that the others aren&#39;t. Though I&#39;m not=
 an expert, I doubt this is the case. But if people believe it to be true, =
we&#39;ll have to come up with new options.</div><div><br></div><div>I woul=
d be grateful for the working group&#39;s thoughts about these documents an=
d the ideas therein. Is it reasonable for people to read and reflect on thi=
s by 26 August (2 weeks from today?)<br></div><div><br></div><div>Thanks,</=
div><div>Martin<br></div></div>

--000000000000af1d3905c960df7a--


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From: Jai Kumar <jai.kumar@broadcom.com>
To: Martin Duke <martin.h.duke@gmail.com>, IETF IPPM WG <ippm@ietf.org>
Thread-Topic: [ippm] RFC 8321 and 8889
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Subject: Re: [ippm] RFC 8321 and 8889
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Quick feedback on 8321.
8321 is deployed in 5G and SP deployment and has support from Broadcom as s=
ilicon vendor.

Let me know if any supporting document (non-confidential) with deployment d=
etails are needed to elevate the draft status to PS.

Note: I am not on the author list of the draft.

-Jai


From: ippm <ippm-bounces@ietf.org> on behalf of Martin Duke <martin.h.duke@=
gmail.com>
Date: Thursday, August 12, 2021 at 11:26 AM
To: IETF IPPM WG <ippm@ietf.org>
Subject: [ippm] RFC 8321 and 8889

Hello IPPM,

(with AD hat on)

The IESG is currently considering
https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-08
which is the implementation of RFC 8321<https://www.rfc-editor.org/rfc/rfc8=
321.html> and 8889<https://www.rfc-editor.org/rfc/rfc8889.html> techniques =
in an IPv6 framework. IIUC, this is very much how things are "supposed to w=
ork" -- measurement definitions and methodology are done by IPPM, and the p=
rotocol-specific instantiations are in the respective working groups.

However, there are complications in that 8321 and 8889 are Experimental RFC=
s, and the ipv6-alt-mark draft is a Proposed Standard. This has resulted in=
 text from 8321/8889 going into ipv6-alt-mark so that it can be elevated to=
 PS. I'm told that, if the status quo holds, other drafts will reference ip=
v6-alt-mark to avoid a downref. This seems suboptimal.

I would prefer that we take one of the two following actions:
1) If the WG has consensus that we are comfortable that there is enough exp=
erience with 8321 and/or 8889 to elevate them to PS, I can initiate a docum=
ent action to change their status.

2) If there is no such consensus, ipv6-alt-mark should be Experimental.

In either case, the draft can probably lose some of the duplicate text.

Logically, there is a third option -- that the bits of the RFCs copied in t=
he draft are mature enough to be a standard, but that the others aren't. Th=
ough I'm not an expert, I doubt this is the case. But if people believe it =
to be true, we'll have to come up with new options.

I would be grateful for the working group's thoughts about these documents =
and the ideas therein. Is it reasonable for people to read and reflect on t=
his by 26 August (2 weeks from today?)

Thanks,
Martin

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<p class=3D"MsoNormal">Quick feedback on 8321.<o:p></o:p></p>
<p class=3D"MsoNormal">8321 is deployed in 5G and SP deployment and has sup=
port from Broadcom as silicon vendor.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Let me know if any supporting document (non-confiden=
tial) with deployment details are needed to elevate the draft status to PS.=
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Note: I am not on the author list of the draft.<o:p>=
</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">-Jai<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>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:12.0pt;color:black">From=
: </span></b><span style=3D"font-size:12.0pt;color:black">ippm &lt;ippm-bou=
nces@ietf.org&gt; on behalf of Martin Duke &lt;martin.h.duke@gmail.com&gt;<=
br>
<b>Date: </b>Thursday, August 12, 2021 at 11:26 AM<br>
<b>To: </b>IETF IPPM WG &lt;ippm@ietf.org&gt;<br>
<b>Subject: </b>[ippm] RFC 8321 and 8889<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<div>
<p class=3D"MsoNormal">Hello IPPM,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">(with AD hat on)<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">The IESG is currently considering<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><a href=3D"https://datatracker.ietf.org/doc/html/dra=
ft-ietf-6man-ipv6-alt-mark-08">https://datatracker.ietf.org/doc/html/draft-=
ietf-6man-ipv6-alt-mark-08</a><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">which is the implementation of RFC <a href=3D"https:=
//www.rfc-editor.org/rfc/rfc8321.html">
8321</a> and <a href=3D"https://www.rfc-editor.org/rfc/rfc8889.html">8889</=
a> techniques in an IPv6 framework. IIUC, this is very much how things are =
&quot;supposed to work&quot; -- measurement definitions and methodology are=
 done by IPPM, and the protocol-specific instantiations
 are in the respective working groups.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">However, there are complications in that 8321 and 88=
89 are Experimental RFCs, and the ipv6-alt-mark draft is a Proposed Standar=
d. This has resulted in text from 8321/8889 going into ipv6-alt-mark so tha=
t it can be elevated to PS. I'm told
 that, if the status quo holds, other drafts will reference ipv6-alt-mark t=
o avoid a downref. This seems suboptimal.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">I would prefer that <b>we take one of the two follow=
ing actions</b>:<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">1) If the WG has consensus that we are comfortable t=
hat there is enough experience with 8321 and/or 8889 to elevate them to PS,=
 I can initiate a document action to change their status.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">2) If there is no such consensus, ipv6-alt-mark shou=
ld be Experimental.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">In either case, the draft can probably lose some of =
the duplicate text.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Logically, there is a third option -- that the bits =
of the RFCs copied in the draft are mature enough to be a standard, but tha=
t the others aren't. Though I'm not an expert, I doubt this is the case. Bu=
t if people believe it to be true,
 we'll have to come up with new options.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">I would be grateful for the working group's thoughts=
 about these documents and the ideas therein. Is it reasonable for people t=
o read and reflect on this by 26 August (2 weeks from today?)<o:p></o:p></p=
>
</div>
<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">Martin<o:p></o:p></p>
</div>
</div>
</div>
</body>
</html>

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From: "Carlos Pignataro (cpignata)" <cpignata@cisco.com>
To: Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>
CC: IETF IPPM WG <ippm@ietf.org>
Thread-Topic: [ippm] Adoption call for IOAM deployment and integrity documents
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Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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From nobody Thu Aug 12 20:26:26 2021
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Hi Martin,

AFAIK, RFC 8321 has been implemented (by at least three vendors) and deployed (by at least one operator) in MPLS mobile backhaul networks.
Although not all measuring options described in RFC 8321 are implemented, e.g. only fixed-timer block and double-marking methodology are used, I believe it's still reasonable to elevate it to PS.
As to RFC 8889, I have no idea on its maturity level, so I'll let others to comment.
With that said, I tend to support that we take action 1) and elevate RFC 8321 to PS.

Best Regards,
Xiao Min
------------------原始邮件------------------
发件人：MartinDuke
收件人：IETF IPPM WG;
日 期 ：2021年08月13日 02:27
主 题 ：[ippm] RFC 8321 and 8889
_______________________________________________
ippm mailing list
ippm@ietf.org
https://www.ietf.org/mailman/listinfo/ippm

Hello IPPM,

(with AD hat on)

The IESG is currently considering
https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-08
which is the implementation of RFC 8321 and 8889 techniques in an IPv6 framework. IIUC, this is very much how things are "supposed to work" -- measurement definitions and methodology are done by IPPM, and the protocol-specific instantiations are in the respective working groups.

However, there are complications in that 8321 and 8889 are Experimental RFCs, and the ipv6-alt-mark draft is a Proposed Standard. This has resulted in text from 8321/8889 going into ipv6-alt-mark so that it can be elevated to PS. I'm told that, if the status quo holds, other drafts will reference ipv6-alt-mark to avoid a downref. This seems suboptimal.

I would prefer that we take one of the two following actions:
1) If the WG has consensus that we are comfortable that there is enough experience with 8321 and/or 8889 to elevate them to PS, I can initiate a document action to change their status.

2) If there is no such consensus, ipv6-alt-mark should be Experimental.

In either case, the draft can probably lose some of the duplicate text.

Logically, there is a third option -- that the bits of the RFCs copied in the draft are mature enough to be a standard, but that the others aren't. Though I'm not an expert, I doubt this is the case. But if people believe it to be true, we'll have to come up with new options.

I would be grateful for the working group's thoughts about these documents and the ideas therein. Is it reasonable for people to read and reflect on this by 26 August (2 weeks from today?)

Thanks,
Martin
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From: "Joe Clarke (jclarke)" <jclarke@cisco.com>
To: "ippm@ietf.org" <ippm@ietf.org>
Thread-Topic: Adoption call for IOAM deployment and integrity documents
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Subject: [ippm] Adoption call for IOAM deployment and integrity documents
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I have read rev 03 of both documents, and I feel these works are worth=0A=
adopting.  I do have a comment about the integrity doc.  I'm glad to see=0A=
this work come forward as I agree with the previous reviews that=0A=
ensuring integrity (arguably by default) is valuable.  What I felt might=0A=
be under-stating here is the "general" statement in Section 3.  You=0A=
mention that the false illusion could prevent detection of actual=0A=
problems or cause false positives that require more processing.=0A=
=0A=
But for POT, I wonder if that's saying enough.  The POT use case, in=0A=
particular, while you can say that a general DoS could be the outcome of=0A=
IOAM manipulation, I thought saying something to the effect of=0A=
circumventing security services in an SFC by "lying" about transit is=0A=
more than just preventing spotting actual problems or causing additional=0A=
processing.  I think the POT use case could use more fleshing out here=0A=
in terms of the threat model.  Though that can certainly happen after=0A=
adoption.=0A=
=0A=
Joe=0A=


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Date: Fri, 13 Aug 2021 09:55:06 -0700
From: Christoph Paasch <cpaasch@apple.com>
To: ippm@ietf.org
Cc: Randall Meyer <rrm@apple.com>, Omer Shapira <omer_shapira@apple.com>, Stuart Cheshire <cheshire@apple.com>
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Subject: [ippm] Fwd: New Version Notification for draft-cpaasch-ippm-responsiveness-00.txt
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Hello IPPM-group,

we just submitted the below IETF-draft, specifying a methodology and metric
to measure "Responsiveness under working conditions" (aka., bufferbloat)
from an end-users' perspective.


Feedback is very welcome!



Regards,
Christoph


----- Forwarded message from internet-drafts@ietf.org -----

From: internet-drafts@ietf.org
To: Christoph Paasch <cpaasch@apple.com>, Omer Shapira <oesh@apple.com>, Randall Meyer <rrm@apple.com>, Stuart Cheshire <cheshire@apple.com>
Date: Fri, 13 Aug 2021 09:43:40 -0700
Subject: New Version Notification for draft-cpaasch-ippm-responsiveness-00.txt


A new version of I-D, draft-cpaasch-ippm-responsiveness-00.txt
has been successfully submitted by Christoph Paasch and posted to the
IETF repository.

Name:		draft-cpaasch-ippm-responsiveness
Revision:	00
Title:		Responsiveness under Working Conditions
Document date:	2021-08-13
Group:		Individual Submission
Pages:		12
URL:            https://www.ietf.org/archive/id/draft-cpaasch-ippm-responsiveness-00.txt
Status:         https://datatracker.ietf.org/doc/draft-cpaasch-ippm-responsiveness/
Htmlized:       https://datatracker.ietf.org/doc/html/draft-cpaasch-ippm-responsiveness


Abstract:
   Bufferbloat has been a long-standing problem on the Internet with
   more than a decade of work on standardizing technical solutions,
   implementations and testing.  However, to this date, bufferbloat is
   still a very common problem for the end-users.  Everyone "knows" that
   it is "normal" for a video conference to have problems when somebody
   else on the same home-network is watching a 4K movie.

   The reason for this problem is not the lack of technical solutions,
   but rather a lack of awareness of the problem-space, and a lack of
   tooling to accurately measure the problem.  We believe that exposing
   the problem of bufferbloat to the end-user by measuring the end-
   users' experience at a high level will help to create the necessary
   awareness.

   This document is a first attempt at specifying a measurement
   methodology to evaluate bufferbloat the way common users are
   experiencing it today, using today's most frequently used protocols
   and mechanisms to accurately measure the user-experience.  We also
   provide a way to express the bufferbloat as a measure of "Round-trips
   per minute" (RPM) to have a more intuitive way for the users to
   understand the notion of bufferbloat.

                                                                                  


The IETF Secretariat



----- End forwarded message -----


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Thread-Topic: [EXT] [ippm] RFC 8321 and 8889
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Subject: Re: [ippm] [EXT]  RFC 8321 and 8889
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Hi Martin.
Telecom Italia is using Alternate Marking defined n RFC8321 and RFC8889 to m=
onitor LTE backhauling as also described in
https://ieeexplore.ieee.org/abstract/document/8782889
So I am in favor to elevate these RFCs to PS.
Thanks.
Mauro




-------- Messaggio originale --------
Da: Martin Duke <martin.h.duke@gmail.com>
Data: 12/08/21 20:27 (GMT+01:00)
A: IETF IPPM WG <ippm@ietf.org>
Oggetto: [EXT] [ippm] RFC 8321 and 8889

Hello IPPM,

(with AD hat on)

The IESG is currently considering
https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-08
which is the implementation of RFC 8321<https://www.rfc-editor.org/rfc/rfc83=
21.html> and 8889<https://www.rfc-editor.org/rfc/rfc8889.html> techniques in=
 an IPv6 framework. IIUC, this is very much how things are "supposed to work=
" -- measurement definitions and methodology are done by IPPM, and the proto=
col-specific instantiations are in the respective working groups.

However, there are complications in that 8321 and 8889 are Experimental RFCs=
, and the ipv6-alt-mark draft is a Proposed Standard. This has resulted in t=
ext from 8321/8889 going into ipv6-alt-mark so that it can be elevated to PS=
. I'm told that, if the status quo holds, other drafts will reference ipv6-a=
lt-mark to avoid a downref. This seems suboptimal.

I would prefer that we take one of the two following actions:
1) If the WG has consensus that we are comfortable that there is enough expe=
rience with 8321 and/or 8889 to elevate them to PS, I can initiate a documen=
t action to change their status.

2) If there is no such consensus, ipv6-alt-mark should be Experimental.

In either case, the draft can probably lose some of the duplicate text.

Logically, there is a third option -- that the bits of the RFCs copied in th=
e draft are mature enough to be a standard, but that the others aren't. Thou=
gh I'm not an expert, I doubt this is the case. But if people believe it to=
 be true, we'll have to come up with new options.

I would be grateful for the working group's thoughts about these documents a=
nd the ideas therein. Is it reasonable for people to read and reflect on thi=
s by 26 August (2 weeks from today?)

Thanks,
Martin

Questo messaggio e i suoi allegati sono indirizzati esclusivamente alle pers=
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<meta content=3D"text/html; charset=3Dutf-8">
</head>
<body>
<div dir=3D"auto">Hi Martin.</div>
<div dir=3D"auto">Telecom Italia is using Alternate Marking defined n RFC832=
1 and RFC8889 to monitor LTE backhauling as also described in</div>
<div dir=3D"auto">https://ieeexplore.ieee.org/abstract/document/8782889</div=
>
<div dir=3D"auto">So I am in favor to elevate these RFCs to PS.</div>
<div dir=3D"auto">Thanks.</div>
<div dir=3D"auto">Mauro</div>
<div dir=3D"auto"><br>
</div>
<div dir=3D"auto"><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>-------- Messaggio originale --------</div>
<div>Da: Martin Duke &lt;martin.h.duke@gmail.com&gt; </div>
<div>Data: 12/08/21 20:27 (GMT+01:00) </div>
<div>A: IETF IPPM WG &lt;ippm@ietf.org&gt; </div>
<div>Oggetto: [EXT] [ippm] RFC 8321 and 8889 </div>
<div><br>
</div>
<div>
<div dir=3D"ltr">
<div>Hello IPPM,</div>
<div><br>
</div>
<div>(with AD hat on)<br>
</div>
<div><br>
</div>
<div>The IESG is currently considering</div>
<div><a href=3D"https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-a=
lt-mark-08">https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-m=
ark-08</a></div>
<div></div>
<div>which is the implementation of RFC <a href=3D"https://www.rfc-editor.or=
g/rfc/rfc8321.html">
8321</a> and <a href=3D"https://www.rfc-editor.org/rfc/rfc8889.html">8889</a=
> techniques in an IPv6 framework. IIUC, this is very much how things are &q=
uot;supposed to work&quot; -- measurement definitions and methodology are do=
ne by IPPM, and the protocol-specific instantiations
 are in the respective working groups.</div>
<div><br>
</div>
<div>However, there are complications in that 8321 and 8889 are Experimental=
 RFCs, and the ipv6-alt-mark draft is a Proposed Standard. This has resulted=
 in text from 8321/8889 going into ipv6-alt-mark so that it can be elevated=
 to PS. I'm told that, if the
 status quo holds, other drafts will reference ipv6-alt-mark to avoid a down=
ref. This seems suboptimal.</div>
<div><br>
</div>
<div>I would prefer that <b>we take one of the two following actions</b>:</d=
iv>
<div>1) If the WG has consensus that we are comfortable that there is enough=
 experience with 8321 and/or 8889 to elevate them to PS, I can initiate a do=
cument action to change their status.</div>
<div><br>
</div>
<div>2) If there is no such consensus, ipv6-alt-mark should be Experimental.=
</div>
<div><br>
</div>
<div>In either case, the draft can probably lose some of the duplicate text.=
</div>
<div><br>
</div>
<div>Logically, there is a third option -- that the bits of the RFCs copied=
 in the draft are mature enough to be a standard, but that the others aren't=
. Though I'm not an expert, I doubt this is the case. But if people believe=
 it to be true, we'll have to come
 up with new options.</div>
<div><br>
</div>
<div>I would be grateful for the working group's thoughts about these docume=
nts and the ideas therein. Is it reasonable for people to read and reflect o=
n this by 26 August (2 weeks from today?)<br>
</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Martin<br>
</div>
</div>
</div>
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From nobody Sun Aug 15 06:39:45 2021
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Date: Sun, 15 Aug 2021 15:39:22 +0200
From: Erik Auerswald <auerswal@unix-ag.uni-kl.de>
To: bloat@lists.bufferbloat.net
Cc: draft-cpaasch-ippm-responsiveness@ietf.org, ippm@ietf.org
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Hi,

I'd like to thank you for working on a nice I-D describing an interesting
and IMHO useful network measurement metric.

Since feedback was asked for, I'd like to try and provide constructive
feedback.

In general, I like the idea of "Round-trips per Minute" (RPM) as a
metric used to characterize (one aspect of) a network.  I do think that
introducing this would improve the status quo.  Since this RPM definition
comprises a specific way of adding load to the network and measuring a
complex metric, I think it is useful to "standardize" it.

I do not think RPM can replace all other metrics.  This is, in a way,
mentioned in the introduction, where it is suggested to add RPM to
existing measurement platforms.  As such I just want to point this out
more explicitely, but do not intend to diminish the RPM idea by this.
In short, I'd say it's complicated.

Bandwidth matters for bulk data transfer, e.g., downloading a huge update
required for playing a multiplayer game online.

Minimum latency matters for the feasibility of interactive applications,
e.g., controlling a toy car in your room vs. a robotic arm on the ISS
from Earth vs. orbital insertion around Mars from Earth.  For a more
mundane use case consider a voice conference.  (A good decade ago I
experienced a voice conferencing system running over IP that introduced
over one second of (minimum) latency and therefore was awkward to use.)

Expressing 'bufferbloat as a measure of "Round-trips per Minute" (RPM)'
exhibits (at least) two problems:

1. A high RPM value is associated with little bufferbloat problems.

2. A low RPM value may be caused by high minimum delay instead of
   bufferbloat.

I think that RPM (i.e., under working conditions) measures a network's
usefulness for interactive applications, but not necessarily bufferbloat.
I do think that RPM is in itself more generally useful than minimum
latency or bandwidth.

A combination of low minimum latency with low RPM value strongly hints
at bufferbloat.  Other combinations are less easily characterized.

Bufferbloat can still lie in hiding, e.g., when a link with bufferbloat
is not yet the bottleneck, or if the communications end-points are not
yet able to saturate the network inbetween.  Thus high bandwidth can
result in high RPM values despite (hidden) bufferbloat.

The "Measuring is Hard" section mentions additional complications.

All in all, I do think that "measuring bufferbloat" and "measuring RPM"
should not be used synonymously.  The I-D title clearly shows this:
RPM is measuring "Responsiveness under Working Conditions" which may be
affected by bufferbloat, among other potential factors, but is not in
itself bufferbloat.

Under the assumption that only a single value (performance score) is
considered, I do think that RPM is more generally useful than bandwidth
or idle latency.

On a meta-level, I think that the word "bufferbloat" is not used according
to a single self-consistent definition in the I-D.

Additionally, I think that the I-D should reference DNS, HTTP/2, and
TLS 1.3, since these protocols are required for implementing the RPM
measurement.  The same for JSON, I think.  Possibly URL.

Using "rpm.example" instead of "example.apple.com" would result in shorter
lines for the example JSON.

"host123.cdn.example" instead of "hostname123.cdnprovider.com" might be
a more appropriate example DNS name.

Adding an informative reference to RFC 2606 / BCP 32 might raise awareness
of the existence of a BCP on example DNS names.

Please find both a unified diff against the text rendering of the I-D,
and a word diff produced from the unified diff, attached to this email
in order to suggest editorial changes that are intended to improve the
reading experience.  They are intended for reading and (possibly partial)
manual application, since the text rendering of an I-D is usually not
the preferred form of editing it.

Thanks,
Erik
-- 
Always use the right tool for the job.
                        -- Rob Pike


On Fri, Aug 13, 2021 at 02:41:05PM -0700, Christoph Paasch via Bloat wrote:
> I already posted this to the RPM-list, but the audience here on bloat should
> be interested as well.
> 
> 
> This is the specification of Apple's responsiveness/RPM test. We believe that it
> would be good for the bufferbloat-effort to have a specification of how to
> quantify the extend of bufferbloat from a user's perspective. Our
> Internet-draft is a first step in that direction and we hope that it will
> kick off some collaboration.
> 
> 
> Feedback is very welcome!
> 
> 
> Cheers,
> Christoph
> 
> 
> ----- Forwarded message from internet-drafts@ietf.org -----
> 
> From: internet-drafts@ietf.org
> To: Christoph Paasch <cpaasch@apple.com>, Omer Shapira <oesh@apple.com>, Randall Meyer <rrm@apple.com>, Stuart Cheshire
> 	<cheshire@apple.com>
> Date: Fri, 13 Aug 2021 09:43:40 -0700
> Subject: New Version Notification for draft-cpaasch-ippm-responsiveness-00.txt
> 
> 
> A new version of I-D, draft-cpaasch-ippm-responsiveness-00.txt
> has been successfully submitted by Christoph Paasch and posted to the
> IETF repository.
> 
> Name:		draft-cpaasch-ippm-responsiveness
> Revision:	00
> Title:		Responsiveness under Working Conditions
> Document date:	2021-08-13
> Group:		Individual Submission
> Pages:		12
> URL:            https://www.ietf.org/archive/id/draft-cpaasch-ippm-responsiveness-00.txt
> Status:         https://datatracker.ietf.org/doc/draft-cpaasch-ippm-responsiveness/
> Htmlized:       https://datatracker.ietf.org/doc/html/draft-cpaasch-ippm-responsiveness
> 
> 
> Abstract:
>    Bufferbloat has been a long-standing problem on the Internet with
>    more than a decade of work on standardizing technical solutions,
>    implementations and testing.  However, to this date, bufferbloat is
>    still a very common problem for the end-users.  Everyone "knows" that
>    it is "normal" for a video conference to have problems when somebody
>    else on the same home-network is watching a 4K movie.
> 
>    The reason for this problem is not the lack of technical solutions,
>    but rather a lack of awareness of the problem-space, and a lack of
>    tooling to accurately measure the problem.  We believe that exposing
>    the problem of bufferbloat to the end-user by measuring the end-
>    users' experience at a high level will help to create the necessary
>    awareness.
> 
>    This document is a first attempt at specifying a measurement
>    methodology to evaluate bufferbloat the way common users are
>    experiencing it today, using today's most frequently used protocols
>    and mechanisms to accurately measure the user-experience.  We also
>    provide a way to express the bufferbloat as a measure of "Round-trips
>    per minute" (RPM) to have a more intuitive way for the users to
>    understand the notion of bufferbloat.
> 
>                                                                                   
> 
> 
> The IETF Secretariat
> 
> 
> 
> ----- End forwarded message -----
> _______________________________________________
> Bloat mailing list
> Bloat@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/bloat

--opJtzjQTFsWo+cga
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="editorial-suggestions-2021-08-15-unified.diff"

--- draft-cpaasch-ippm-responsiveness-00.txt	2021-08-15 12:01:01.213813125 +0200
+++ draft-cpaasch-ippm-responsiveness-00-ea.txt	2021-08-15 15:08:08.013416074 +0200
@@ -17,7 +17,7 @@
 
    Bufferbloat has been a long-standing problem on the Internet with
    more than a decade of work on standardizing technical solutions,
-   implementations and testing.  However, to this date, bufferbloat is
+   implementations, and testing.  However, to this date, bufferbloat is
    still a very common problem for the end-users.  Everyone "knows" that
    it is "normal" for a video conference to have problems when somebody
    else on the same home-network is watching a 4K movie.
@@ -33,8 +33,8 @@
    methodology to evaluate bufferbloat the way common users are
    experiencing it today, using today's most frequently used protocols
    and mechanisms to accurately measure the user-experience.  We also
-   provide a way to express the bufferbloat as a measure of "Round-trips
-   per minute" (RPM) to have a more intuitive way for the users to
+   provide a way to express bufferbloat as a measure of "Round-trips
+   per Minute" (RPM) to have a more intuitive way for the users to
    understand the notion of bufferbloat.
 
 Status of This Memo
@@ -81,14 +81,14 @@
 Table of Contents
 
    1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
-   2.  Measuring is hard . . . . . . . . . . . . . . . . . . . . . .   3
+   2.  Measuring is Hard . . . . . . . . . . . . . . . . . . . . . .   3
    3.  Goals . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
    4.  Measuring Responsiveness  . . . . . . . . . . . . . . . . . .   5
      4.1.  Working Conditions  . . . . . . . . . . . . . . . . . . .   5
        4.1.1.  Parallel vs Sequential Uplink and Downlink  . . . . .   6
-       4.1.2.  From single-flow to multi-flow  . . . . . . . . . . .   7
-       4.1.3.  Reaching saturation . . . . . . . . . . . . . . . . .   7
-       4.1.4.  Final algorithm . . . . . . . . . . . . . . . . . . .   7
+       4.1.2.  From Single-flow to Multi-flow  . . . . . . . . . . .   7
+       4.1.3.  Reaching Saturation . . . . . . . . . . . . . . . . .   7
+       4.1.4.  Final Algorithm . . . . . . . . . . . . . . . . . . .   7
      4.2.  Measuring Responsiveness  . . . . . . . . . . . . . . . .   8
        4.2.1.  Aggregating Round-trips per Minute  . . . . . . . . .   9
        4.2.2.  Statistical Confidence  . . . . . . . . . . . . . . .  10
@@ -103,8 +103,8 @@
 
    For many years, bufferbloat has been known as an unfortunately common
    issue in todays networks [Bufferbloat].  Solutions like FQ-codel
-   [RFC8289] or PIE [RFC8033] have been standardized and are to some
-   extend widely implemented.  Nevertheless, users still suffer from
+   [RFC8290] or PIE [RFC8033] have been standardized and are to some
+   extent widely implemented.  Nevertheless, users still suffer from
    bufferbloat.
 
 
@@ -129,7 +129,7 @@
    bufferbloat problem.
 
    We believe that it is necessary to create a standardized way for
-   measuring the extend of bufferbloat in a network and express it to
+   measuring the extent of bufferbloat in a network and express it to
    the user in a user-friendly way.  This should help existing
    measurement tools to add a bufferbloat measurement to their set of
    metrics.  It will also allow to raise the awareness to the problem
@@ -144,10 +144,10 @@
    classification for those protocols is very common.  It is thus very
    important to use those protocols for the measurements to avoid
    focusing on use-cases that are not actually affecting the end-user.
-   Finally, we propose to use "round-trips per minute" as a metric to
-   express the extend of bufferbloat.
+   Finally, we propose to use "Round-trips per Minute" as a metric to
+   express the extent of bufferbloat.
 
-2.  Measuring is hard
+2.  Measuring is Hard
 
    There are several challenges around measuring bufferbloat accurately
    on the Internet.  These challenges are due to different factors.
@@ -155,7 +155,7 @@
    problem space, and the reproducibility of the measurement.
 
    It is well-known that transparent TCP proxies are widely deployed on
-   port 443 and/or port 80, while less common on other ports.  Thus,
+   port 443 and/or port 80, while less commonly on other ports.  Thus,
    choice of the port-number to measure bufferbloat has a significant
    influence on the result.  Other factors are the protocols being used.
    TCP and UDP traffic may take a largely different path on the Internet
@@ -186,17 +186,17 @@
    measurement.  It seems that it's best to avoid extending the duration
    of the test beyond what's needed.
 
-   The problem space around the bufferbloat is huge.  Traditionally, one
+   The problem space around bufferbloat is huge.  Traditionally, one
    thinks of bufferbloat happening on the routers and switches of the
    Internet.  Thus, simply measuring bufferbloat at the transport layer
    would be sufficient.  However, the networking stacks of the clients
    and servers can also experience huge amounts of bufferbloat.  Data
    sitting in TCP sockets or waiting in the application to be scheduled
    for sending causes artificial latency, which affects user-experience
-   the same way the "traditional" bufferbloat does.
+   the same way "traditional" bufferbloat does.
 
    Finally, measuring bufferbloat requires us to fill the buffers of the
-   bottleneck and when buffer occupancy is at its peak, the latency
+   bottleneck, and when buffer occupancy is at its peak, the latency
    measurement needs to be done.  Achieving this in a reliable and
    reproducible way is not easy.  First, one needs to ensure that
    buffers are actually full for a sustained period of time to allow for
@@ -250,15 +250,15 @@
        bufferbloat.
 
    4.  Finally, in order for this measurement to be user-friendly to a
-       wide audience it is important that such a measurement finishes
-       within a short time-frame and short being anything below 20
+       wide audience, it is important that such a measurement finishes
+       within a short time-frame with short being anything below 20
        seconds.
 
 4.  Measuring Responsiveness
 
    The ability to reliably measure the responsiveness under typical
    working conditions is predicated by the ability to reliably put the
-   network in a state representative of the said conditions.  Once the
+   network in a state representative of said conditions.  Once the
    network has reached the required state, its responsiveness can be
    measured.  The following explains how the former and the latter are
    achieved.
@@ -270,7 +270,7 @@
    experiencing ingress and egress flows that are similar to those when
    used by humans in the typical day-to-day pattern.
 
-   While any network can be put momentarily into working condition by
+   While any network can be put momentarily into working conditions by
    the means of a single HTTP transaction, taking measurements requires
    maintaining such conditions over sufficient time.  Thus, measuring
    the network responsiveness in a consistent way depends on our ability
@@ -286,7 +286,7 @@
    way to achieve this is by creating multiple large bulk data-transfers
    in either downstream or upstream direction.  Similar to conventional
    speed-test applications that also create a varying number of streams
-   to measure throughput.  Working-conditions does the same.  It also
+   to measure throughput.  Working conditions does the same.  It also
    requires a way to detect when the network is in a persistent working
    condition, called "saturation".  This can be achieved by monitoring
    the instantaneous goodput over time.  When the goodput stops
@@ -298,7 +298,7 @@
    o  Should not waste traffic, since the user may be paying for it
 
    o  Should finish within a short time-frame to avoid impacting other
-      users on the same network and/or experience varying conditions
+      users on the same network and/or experiencing varying conditions
 
 4.1.1.  Parallel vs Sequential Uplink and Downlink
 
@@ -308,8 +308,8 @@
    upstream) or the routing in the ISPs.  Users sending data to an
    Internet service will fill the bottleneck on the upstream path to the
    server and thus expose a potential for bufferbloat to happen at this
-   bottleneck.  On the downlink direction any download from an Internet
-   service will encounter a bottleneck and thus exposes another
+   bottleneck.  In the downlink direction any download from an Internet
+   service will encounter a bottleneck and thus expose another
    potential for bufferbloat.  Thus, when measuring responsiveness under
    working conditions it is important to consider both, the upstream and
    the downstream bufferbloat.  This opens the door to measure both
@@ -322,13 +322,16 @@
    seconds of test per direction, while parallel measurement will allow
    for 20 seconds of testing in both directions.
 
-   However, a number caveats come with measuring in parallel: - Half-
-   duplex links may not expose uplink and downlink bufferbloat: A half-
-   duplex link may not allow during parallel measurement to saturate
-   both the uplink and the downlink direction.  Thus, bufferbloat in
-   either of the directions may not be exposed during parallel
-   measurement.  - Debuggability of the results becomes more obscure:
-   During parallel measurement it is impossible to differentiate on
+   However, a number caveats come with measuring in parallel:
+
+   - Half-duplex links may not expose uplink and downlink bufferbloat:
+     A half-duplex link may not allow to saturate both the uplink
+     and the downlink direction during parallel measurement.  Thus,
+     bufferbloat in either of the directions may not be exposed during
+     parallel measurement.
+
+   - Debuggability of the results becomes more obscure:
+     During parallel measurement it is impossible to differentiate on
 
 
 
@@ -338,26 +341,26 @@
 Internet-Draft   Responsiveness under Working Conditions     August 2021
 
 
-   whether the bufferbloat happens in the uplink or the downlink
-   direction.
+     whether the bufferbloat happens in the uplink or the downlink
+     direction.
 
-4.1.2.  From single-flow to multi-flow
+4.1.2.  From Single-flow to Multi-flow
 
-   As described in RFC 6349, a single TCP connection may not be
+   As described in [RFC6349], a single TCP connection may not be
    sufficient to saturate a path between a client and a server.  On a
    high-BDP network, traditional TCP window-size constraints of 4MB are
    often not sufficient to fill the pipe.  Additionally, traditional
-   loss-based TCP congestion control algorithms aggressively reacts to
+   loss-based TCP congestion control algorithms aggressively react to
    packet-loss by reducing the congestion window.  This reaction will
-   reduce the queuing in the network, and thus "artificially" make the
-   bufferbloat appear lesser.
+   reduce the queuing in the network, and thus "artificially" make
+   bufferbloat appear less of a problem.
 
-   The goal of the measurement is to keep the network as busy as
-   possible in a sustained and persistent way.  Thus, using multiple TCP
+   The goal is to keep the network as busy as possible in a sustained
+   and persistent way during the measurement.  Thus, using multiple TCP
    connections is needed for a sustained bufferbloat by gradually adding
-   TCP flows until saturation is needed.
+   TCP flows until saturation is reached.
 
-4.1.3.  Reaching saturation
+4.1.3.  Reaching Saturation
 
    It is best to detect when saturation has been reached so that the
    measurement of responsiveness can start with the confidence that the
@@ -367,8 +370,8 @@
    buffers are completely filled.  Thus, this depends highly on the
    congestion control that is being deployed on the sender-side.
    Congestion control algorithms like BBR may reach high throughput
-   without causing bufferbloat. (because the bandwidth-detection portion
-   of BBR is effectively seeking the bottleneck capacity)
+   without causing bufferbloat (because the bandwidth-detection portion
+   of BBR is effectively seeking the bottleneck capacity).
 
    It is advised to rather use loss-based congestion controls like Cubic
    to "reliably" ensure that the buffers are filled.
@@ -379,7 +382,7 @@
    packet-loss or ECN-marks signaling a congestion or even a full buffer
    of the bottleneck link.
 
-4.1.4.  Final algorithm
+4.1.4.  Final Algorithm
 
    The following is a proposal for an algorithm to reach saturation of a
    network by using HTTP/2 upload (POST) or download (GET) requests of
@@ -404,7 +407,7 @@
    throughput will remain stable.  In the latter case, this means that
    saturation has been reached and - more importantly - is stable.
 
-   In detail, the steps of the algorithm are the following
+   In detail, the steps of the algorithm are the following:
 
    o  Create 4 load-bearing connections
 
@@ -453,7 +456,7 @@
    the different stages of a separate network transaction as well as
    measuring on the load-bearing connections themselves.
 
-   Two aspects are being measured with this approach :
+   Two aspects are being measured with this approach:
 
    1.  How the network handles new connections and their different
        stages (DNS-request, TCP-handshake, TLS-handshake, HTTP/2
@@ -463,19 +466,19 @@
 
    2.  How the network and the client/server networking stack handles
        the latency on the load-bearing connections themselves.  E.g.,
-       Smart queuing techniques on the bottleneck will allow to keep the
+       smart queuing techniques on the bottleneck will allow to keep the
        latency within a reasonable limit in the network and buffer-
-       reducing techniques like TCP_NOTSENT_LOWAT makes sure the client
+       reducing techniques like TCP_NOTSENT_LOWAT make sure the client
        and server TCP-stack is not a source of significant latency.
 
    To measure the former, we send a DNS-request, establish a TCP-
    connection on port 443, establish a TLS-context using TLS1.3 and send
-   an HTTP2 GET request for an object of a single byte large.  This
+   an HTTP/2 GET request for an object the size of a single byte.  This
    measurement will be repeated multiple times for accuracy.  Each of
    these stages allows to collect a single latency measurement that can
    then be factored into the responsiveness computation.
 
-   To measure the latter, on the load-bearing connections (that uses
+   To measure the latter, on the load-bearing connections (that use
    HTTP/2) a GET request is multiplexed.  This GET request is for a
    1-byte object.  This allows to measure the end-to-end latency on the
    connections that are using the network at full speed.
@@ -492,10 +495,10 @@
    an equal weight to each of these measurements.
 
    Finally, the resulting latency needs to be exposed to the users.
-   Users have been trained to accept metrics that have a notion of "The
+   Users have been trained to accept metrics that have a notion of "the
    higher the better".  Latency measuring in units of seconds however is
    "the lower the better".  Thus, converting the latency measurement to
-   a frequency allows using the familiar notion of "The higher the
+   a frequency allows using the familiar notion of "the higher the
    better".  The term frequency has a very technical connotation.  What
    we are effectively measuring is the number of round-trips from the
 
@@ -513,7 +516,7 @@
    which is a wink to the "revolutions per minute" that we are used to
    in cars.
 
-   Thus, our unit of measure is "Round-trip per Minute" (RPM) that
+   Thus, our unit of measure is "Round-trips per Minute" (RPM) that
    expresses responsiveness under working conditions.
 
 4.2.2.  Statistical Confidence
@@ -527,13 +530,13 @@
 5.  Protocol Specification
 
    By using standard protocols that are most commonly used by end-users,
-   no new protocol needs to be specified.  However, both client and
+   no new protocol needs to be specified.  However, both clients and
    servers need capabilities to execute this kind of measurement as well
-   as a standard to flow to provision the client with the necessary
+   as a standard to follow to provision the client with the necessary
    information.
 
    First, the capabilities of both the client and the server: It is
-   expected that both hosts support HTTP/2 over TLS 1.3.  That the
+   expected that both hosts support HTTP/2 over TLS 1.3, and that the
    client is able to send a GET-request and a POST.  The server needs
    the ability to serve both of these HTTP commands.  Further, the
    server endpoint is accessible through a hostname that can be resolved
@@ -546,13 +549,13 @@
    1.  A config URL/response: This is the configuration file/format used
        by the client.  It's a simple JSON file format that points the
        client at the various URLs mentioned below.  All of the fields
-       are required except "test_endpoint".  If the service-procier can
+       are required except "test_endpoint".  If the service-provider can
        pin all of the requests for a test run to a specific node in the
        service (for a particular run), they can specify that node's name
        in the "test_endpoint" field.  It's preferred that pinning of
        some sort is available.  This is to ensure the measurement is
        against the same paths and not switching hosts during a test run
-       (ie moving from near POP A to near POP B) Sample content of this
+       (i.e., moving from near POP A to near POP B).  Sample content of this
        JSON would be:
 
 
@@ -577,7 +580,7 @@
 
    3.  A "large" URL/response: This needs to serve a status code of 200
        and a body size of at least 8GB.  The body can be bigger, and
-       will need to grow as network speeds increases over time.  The
+       will need to grow as network speeds increase over time.  The
        actual body content is irrelevant.  The client will probably
        never completely download the object.
 
@@ -618,16 +621,19 @@
 Internet-Draft   Responsiveness under Working Conditions     August 2021
 
 
+   [RFC6349]  ...
+
    [RFC8033]  Pan, R., Natarajan, P., Baker, F., and G. White,
               "Proportional Integral Controller Enhanced (PIE): A
               Lightweight Control Scheme to Address the Bufferbloat
               Problem", RFC 8033, DOI 10.17487/RFC8033, February 2017,
               <https://www.rfc-editor.org/info/rfc8033>.
 
-   [RFC8289]  Nichols, K., Jacobson, V., McGregor, A., Ed., and J.
-              Iyengar, Ed., "Controlled Delay Active Queue Management",
-              RFC 8289, DOI 10.17487/RFC8289, January 2018,
-              <https://www.rfc-editor.org/info/rfc8289>.
+   [RFC8290]  Hoeiland-Joergensen, T., McKenney, P., Taht, D., Ed., and
+              Gettys, J., "The Flow Queue CoDel Packet Scheduler and
+	      Active Queue Management Algorithm", RFC 8290,
+	      DOI 10.17487/RFC8290, January 2018,
+              <https://www.rfc-editor.org/info/rfc8290>.
 
 Authors' Addresses
 

--opJtzjQTFsWo+cga
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="editorial-suggestions-2021-08-15-word.diff"

[--- draft-cpaasch-ippm-responsiveness-00.txt-]{+++ draft-cpaasch-ippm-responsiveness-00-ea.txt+}	2021-08-15 [-12:01:01.213813125-] {+15:08:08.013416074+} +0200
@@ -17,7 +17,7 @@

   Bufferbloat has been a long-standing problem on the Internet with
   more than a decade of work on standardizing technical solutions,
   [-implementations-]
   {+implementations,+} and testing.  However, to this date, bufferbloat is
   still a very common problem for the end-users.  Everyone "knows" that
   it is "normal" for a video conference to have problems when somebody
   else on the same home-network is watching a 4K movie.
@@ -33,8 +33,8 @@
   methodology to evaluate bufferbloat the way common users are
   experiencing it today, using today's most frequently used protocols
   and mechanisms to accurately measure the user-experience.  We also
   provide a way to express [-the-] bufferbloat as a measure of "Round-trips
   per [-minute"-] {+Minute"+} (RPM) to have a more intuitive way for the users to
   understand the notion of bufferbloat.

Status of This Memo
@@ -81,14 +81,14 @@
Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Measuring is [-hard-] {+Hard+} . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Goals . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Measuring Responsiveness  . . . . . . . . . . . . . . . . . .   5
     4.1.  Working Conditions  . . . . . . . . . . . . . . . . . . .   5
       4.1.1.  Parallel vs Sequential Uplink and Downlink  . . . . .   6
       4.1.2.  From [-single-flow-] {+Single-flow+} to [-multi-flow-] {+Multi-flow+}  . . . . . . . . . . .   7
       4.1.3.  Reaching [-saturation-] {+Saturation+} . . . . . . . . . . . . . . . . .   7
       4.1.4.  Final [-algorithm-] {+Algorithm+} . . . . . . . . . . . . . . . . . . .   7
     4.2.  Measuring Responsiveness  . . . . . . . . . . . . . . . .   8
       4.2.1.  Aggregating Round-trips per Minute  . . . . . . . . .   9
       4.2.2.  Statistical Confidence  . . . . . . . . . . . . . . .  10
@@ -103,8 +103,8 @@

   For many years, bufferbloat has been known as an unfortunately common
   issue in todays networks [Bufferbloat].  Solutions like FQ-codel
   [-[RFC8289]-]
   {+[RFC8290]+} or PIE [RFC8033] have been standardized and are to some
   [-extend-]
   {+extent+} widely implemented.  Nevertheless, users still suffer from
   bufferbloat.


@@ -129,7 +129,7 @@
   bufferbloat problem.

   We believe that it is necessary to create a standardized way for
   measuring the [-extend-] {+extent+} of bufferbloat in a network and express it to
   the user in a user-friendly way.  This should help existing
   measurement tools to add a bufferbloat measurement to their set of
   metrics.  It will also allow to raise the awareness to the problem
@@ -144,10 +144,10 @@
   classification for those protocols is very common.  It is thus very
   important to use those protocols for the measurements to avoid
   focusing on use-cases that are not actually affecting the end-user.
   Finally, we propose to use [-"round-trips-] {+"Round-trips+} per [-minute"-] {+Minute"+} as a metric to
   express the [-extend-] {+extent+} of bufferbloat.

2.  Measuring is [-hard-] {+Hard+}

   There are several challenges around measuring bufferbloat accurately
   on the Internet.  These challenges are due to different factors.
@@ -155,7 +155,7 @@
   problem space, and the reproducibility of the measurement.

   It is well-known that transparent TCP proxies are widely deployed on
   port 443 and/or port 80, while less [-common-] {+commonly+} on other ports.  Thus,
   choice of the port-number to measure bufferbloat has a significant
   influence on the result.  Other factors are the protocols being used.
   TCP and UDP traffic may take a largely different path on the Internet
@@ -186,17 +186,17 @@
   measurement.  It seems that it's best to avoid extending the duration
   of the test beyond what's needed.

   The problem space around [-the-] bufferbloat is huge.  Traditionally, one
   thinks of bufferbloat happening on the routers and switches of the
   Internet.  Thus, simply measuring bufferbloat at the transport layer
   would be sufficient.  However, the networking stacks of the clients
   and servers can also experience huge amounts of bufferbloat.  Data
   sitting in TCP sockets or waiting in the application to be scheduled
   for sending causes artificial latency, which affects user-experience
   the same way [-the-] "traditional" bufferbloat does.

   Finally, measuring bufferbloat requires us to fill the buffers of the
   [-bottleneck-]
   {+bottleneck,+} and when buffer occupancy is at its peak, the latency
   measurement needs to be done.  Achieving this in a reliable and
   reproducible way is not easy.  First, one needs to ensure that
   buffers are actually full for a sustained period of time to allow for
@@ -250,15 +250,15 @@
       bufferbloat.

   4.  Finally, in order for this measurement to be user-friendly to a
       wide [-audience-] {+audience,+} it is important that such a measurement finishes
       within a short time-frame [-and-] {+with+} short being anything below 20
       seconds.

4.  Measuring Responsiveness

   The ability to reliably measure the responsiveness under typical
   working conditions is predicated by the ability to reliably put the
   network in a state representative of [-the-] said conditions.  Once the
   network has reached the required state, its responsiveness can be
   measured.  The following explains how the former and the latter are
   achieved.
@@ -270,7 +270,7 @@
   experiencing ingress and egress flows that are similar to those when
   used by humans in the typical day-to-day pattern.

   While any network can be put momentarily into working [-condition-] {+conditions+} by
   the means of a single HTTP transaction, taking measurements requires
   maintaining such conditions over sufficient time.  Thus, measuring
   the network responsiveness in a consistent way depends on our ability
@@ -286,7 +286,7 @@
   way to achieve this is by creating multiple large bulk data-transfers
   in either downstream or upstream direction.  Similar to conventional
   speed-test applications that also create a varying number of streams
   to measure throughput.  [-Working-conditions-]  {+Working conditions+} does the same.  It also
   requires a way to detect when the network is in a persistent working
   condition, called "saturation".  This can be achieved by monitoring
   the instantaneous goodput over time.  When the goodput stops
@@ -298,7 +298,7 @@
   o  Should not waste traffic, since the user may be paying for it

   o  Should finish within a short time-frame to avoid impacting other
      users on the same network and/or [-experience-] {+experiencing+} varying conditions

4.1.1.  Parallel vs Sequential Uplink and Downlink

@@ -308,8 +308,8 @@
   upstream) or the routing in the ISPs.  Users sending data to an
   Internet service will fill the bottleneck on the upstream path to the
   server and thus expose a potential for bufferbloat to happen at this
   bottleneck.  [-On-]  {+In+} the downlink direction any download from an Internet
   service will encounter a bottleneck and thus [-exposes-] {+expose+} another
   potential for bufferbloat.  Thus, when measuring responsiveness under
   working conditions it is important to consider both, the upstream and
   the downstream bufferbloat.  This opens the door to measure both
@@ -322,13 +322,16 @@
   seconds of test per direction, while parallel measurement will allow
   for 20 seconds of testing in both directions.

   However, a number caveats come with measuring in parallel:

   - [-Half-
   duplex-] {+Half-duplex+} links may not expose uplink and downlink bufferbloat:
     A [-half-
   duplex-] {+half-duplex+} link may not allow [-during parallel measurement-] to saturate both the uplink
     and the downlink [-direction.-] {+direction during parallel measurement.+}  Thus,
     bufferbloat in either of the directions may not be exposed during
     parallel measurement.

   - Debuggability of the results becomes more obscure:
     During parallel measurement it is impossible to differentiate on



@@ -338,26 +341,26 @@
Internet-Draft   Responsiveness under Working Conditions     August 2021


     whether the bufferbloat happens in the uplink or the downlink
     direction.

4.1.2.  From [-single-flow-] {+Single-flow+} to [-multi-flow-] {+Multi-flow+}

   As described in [-RFC 6349,-] {+[RFC6349],+} a single TCP connection may not be
   sufficient to saturate a path between a client and a server.  On a
   high-BDP network, traditional TCP window-size constraints of 4MB are
   often not sufficient to fill the pipe.  Additionally, traditional
   loss-based TCP congestion control algorithms aggressively [-reacts-] {+react+} to
   packet-loss by reducing the congestion window.  This reaction will
   reduce the queuing in the network, and thus "artificially" make [-the-]
   bufferbloat appear [-lesser.-] {+less of a problem.+}

   The goal [-of the measurement-] is to keep the network as busy as possible in a sustained
   and persistent [-way.-] {+way during the measurement.+}  Thus, using multiple TCP
   connections is needed for a sustained bufferbloat by gradually adding
   TCP flows until saturation is [-needed.-] {+reached.+}

4.1.3.  Reaching [-saturation-] {+Saturation+}

   It is best to detect when saturation has been reached so that the
   measurement of responsiveness can start with the confidence that the
@@ -367,8 +370,8 @@
   buffers are completely filled.  Thus, this depends highly on the
   congestion control that is being deployed on the sender-side.
   Congestion control algorithms like BBR may reach high throughput
   without causing [-bufferbloat.-] {+bufferbloat+} (because the bandwidth-detection portion
   of BBR is effectively seeking the bottleneck [-capacity)-] {+capacity).+}

   It is advised to rather use loss-based congestion controls like Cubic
   to "reliably" ensure that the buffers are filled.
@@ -379,7 +382,7 @@
   packet-loss or ECN-marks signaling a congestion or even a full buffer
   of the bottleneck link.

4.1.4.  Final [-algorithm-] {+Algorithm+}

   The following is a proposal for an algorithm to reach saturation of a
   network by using HTTP/2 upload (POST) or download (GET) requests of
@@ -404,7 +407,7 @@
   throughput will remain stable.  In the latter case, this means that
   saturation has been reached and - more importantly - is stable.

   In detail, the steps of the algorithm are the [-following-] {+following:+}

   o  Create 4 load-bearing connections

@@ -453,7 +456,7 @@
   the different stages of a separate network transaction as well as
   measuring on the load-bearing connections themselves.

   Two aspects are being measured with this [-approach :-] {+approach:+}

   1.  How the network handles new connections and their different
       stages (DNS-request, TCP-handshake, TLS-handshake, HTTP/2
@@ -463,19 +466,19 @@

   2.  How the network and the client/server networking stack handles
       the latency on the load-bearing connections themselves.  E.g.,
       [-Smart-]
       {+smart+} queuing techniques on the bottleneck will allow to keep the
       latency within a reasonable limit in the network and buffer-
       reducing techniques like TCP_NOTSENT_LOWAT [-makes-] {+make+} sure the client
       and server TCP-stack is not a source of significant latency.

   To measure the former, we send a DNS-request, establish a TCP-
   connection on port 443, establish a TLS-context using TLS1.3 and send
   an [-HTTP2-] {+HTTP/2+} GET request for an object {+the size+} of a single [-byte large.-] {+byte.+}  This
   measurement will be repeated multiple times for accuracy.  Each of
   these stages allows to collect a single latency measurement that can
   then be factored into the responsiveness computation.

   To measure the latter, on the load-bearing connections (that [-uses-] {+use+}
   HTTP/2) a GET request is multiplexed.  This GET request is for a
   1-byte object.  This allows to measure the end-to-end latency on the
   connections that are using the network at full speed.
@@ -492,10 +495,10 @@
   an equal weight to each of these measurements.

   Finally, the resulting latency needs to be exposed to the users.
   Users have been trained to accept metrics that have a notion of [-"The-] {+"the+}
   higher the better".  Latency measuring in units of seconds however is
   "the lower the better".  Thus, converting the latency measurement to
   a frequency allows using the familiar notion of [-"The-] {+"the+} higher the
   better".  The term frequency has a very technical connotation.  What
   we are effectively measuring is the number of round-trips from the

@@ -513,7 +516,7 @@
   which is a wink to the "revolutions per minute" that we are used to
   in cars.

   Thus, our unit of measure is [-"Round-trip-] {+"Round-trips+} per Minute" (RPM) that
   expresses responsiveness under working conditions.

4.2.2.  Statistical Confidence
@@ -527,13 +530,13 @@
5.  Protocol Specification

   By using standard protocols that are most commonly used by end-users,
   no new protocol needs to be specified.  However, both [-client-] {+clients+} and
   servers need capabilities to execute this kind of measurement as well
   as a standard to [-flow-] {+follow+} to provision the client with the necessary
   information.

   First, the capabilities of both the client and the server: It is
   expected that both hosts support HTTP/2 over TLS [-1.3.  That-] {+1.3, and that+} the
   client is able to send a GET-request and a POST.  The server needs
   the ability to serve both of these HTTP commands.  Further, the
   server endpoint is accessible through a hostname that can be resolved
@@ -546,13 +549,13 @@
   1.  A config URL/response: This is the configuration file/format used
       by the client.  It's a simple JSON file format that points the
       client at the various URLs mentioned below.  All of the fields
       are required except "test_endpoint".  If the [-service-procier-] {+service-provider+} can
       pin all of the requests for a test run to a specific node in the
       service (for a particular run), they can specify that node's name
       in the "test_endpoint" field.  It's preferred that pinning of
       some sort is available.  This is to ensure the measurement is
       against the same paths and not switching hosts during a test run
       [-(ie-]
       {+(i.e.,+} moving from near POP A to near POP [-B)-] {+B).+}  Sample content of this
       JSON would be:


@@ -577,7 +580,7 @@

   3.  A "large" URL/response: This needs to serve a status code of 200
       and a body size of at least 8GB.  The body can be bigger, and
       will need to grow as network speeds [-increases-] {+increase+} over time.  The
       actual body content is irrelevant.  The client will probably
       never completely download the object.

@@ -618,16 +621,19 @@
Internet-Draft   Responsiveness under Working Conditions     August 2021


   {+[RFC6349]  ...+}

   [RFC8033]  Pan, R., Natarajan, P., Baker, F., and G. White,
              "Proportional Integral Controller Enhanced (PIE): A
              Lightweight Control Scheme to Address the Bufferbloat
              Problem", RFC 8033, DOI 10.17487/RFC8033, February 2017,
              <https://www.rfc-editor.org/info/rfc8033>.

   [-[RFC8289]  Nichols, K., Jacobson, V., McGregor, A.,-]

   {+[RFC8290]  Hoeiland-Joergensen, T., McKenney, P., Taht, D.,+} Ed., and [-J.
              Iyengar, Ed., "Controlled Delay-]
              {+Gettys, J., "The Flow Queue CoDel Packet Scheduler and+}
	      Active Queue [-Management",-] {+Management Algorithm",+} RFC [-8289,-] {+8290,+}
	      DOI [-10.17487/RFC8289,-] {+10.17487/RFC8290,+} January 2018,
              [-<https://www.rfc-editor.org/info/rfc8289>.-]
              {+<https://www.rfc-editor.org/info/rfc8290>.+}

Authors' Addresses


--opJtzjQTFsWo+cga--


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From: "MORTON JR., AL" <acmorton@att.com>
To: Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>, "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
Thread-Topic: [ippm] Adoption call for IOAM deployment and integrity documents
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Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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Subject: [ippm] draft-elkins-ippm-encrypted-pdmv2-00 - Slides from Side Meeting
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Hello All,
We had a very good discussion at the side meeting at IETF111 of draft-elkin=
s-ippm-encrypted-pdmv2-00.
We are discussing encryption of the PDM Destination Option and the best way=
 to do this.
You may download the slides for the side meeting at:=C2=A0
http://www.insidethestack.com/public/FullPresentationForPDMv2SideMeeting.pd=
f
We will also have meetings to discuss this every two weeks starting on Frid=
ay, August 20th at 9:00am pacific.=C2=A0 =C2=A0Please let me know if you wo=
uld like to attend and I can give you the Zoom link.
Thanks,

Nalini Elkins
CEO and Founder
Inside Products, Inc.
www.insidethestack.com
(831) 659-8360
------=_Part_846482_1536699632.1629083510497
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<html><head></head><body><div class=3D"yahoo-style-wrap" style=3D"font-fami=
ly:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div>Hello=
 All,</div><div><br></div><div>We had a very good discussion at the side me=
eting at IETF111 of draft-elkins-ippm-encrypted-pdmv2-00.</div><div><br></d=
iv><div>We are discussing encryption of the PDM Destination Option and the =
best way to do this.</div><div><br></div><div>You may download the slides f=
or the side meeting at:&nbsp;</div><div><br></div><div dir=3D"ltr" data-set=
dir=3D"false">http://www.insidethestack.com/public/<span>FullPresentationFo=
rPDMv2SideMeeting.pdf</span></div><div dir=3D"ltr" data-setdir=3D"false"><s=
pan><br></span></div><div dir=3D"ltr" data-setdir=3D"false"><span>We will a=
lso have meetings to discuss this every two weeks starting on Friday, Augus=
t 20th at 9:00am pacific.&nbsp; &nbsp;Please let me know if you would like =
to attend and I can give you the Zoom link.</span></div><div dir=3D"ltr" da=
ta-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">Thanks=
,<br></div><br>Nalini Elkins<br>CEO and Founder<br>Inside Products, Inc.<br=
>www.insidethestack.com<br>(831) 659-8360</div></body></html>
------=_Part_846482_1536699632.1629083510497--


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Date: Mon, 16 Aug 2021 14:13:55 +0000 (UTC)
From: "nalini.elkins@insidethestack.com" <nalini.elkins@insidethestack.com>
To: IETF IPPM WG <ippm@ietf.org>
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Subject: Re: [ippm] draft-elkins-ippm-encrypted-pdmv2-00 - Slides from Side Meeting
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All,
Here is a recording of the side meeting for any who are interested.
PDMv2 Side Meeting
Thanks,

Nalini Elkins
CEO and Founder
Inside Products, Inc.
www.insidethestack.com
(831) 659-8360=20

    On Sunday, August 15, 2021, 08:12:09 PM PDT, nalini.elkins@insidethesta=
ck.com <nalini.elkins@insidethestack.com> wrote: =20
=20
 Hello All,
We had a very good discussion at the side meeting at IETF111 of draft-elkin=
s-ippm-encrypted-pdmv2-00.
We are discussing encryption of the PDM Destination Option and the best way=
 to do this.
You may download the slides for the side meeting at:=C2=A0
http://www.insidethestack.com/public/FullPresentationForPDMv2SideMeeting.pd=
f
We will also have meetings to discuss this every two weeks starting on Frid=
ay, August 20th at 9:00am pacific.=C2=A0 =C2=A0Please let me know if you wo=
uld like to attend and I can give you the Zoom link.
Thanks,

Nalini Elkins
CEO and Founder
Inside Products, Inc.
www.insidethestack.com
(831) 659-8360_______________________________________________
ippm mailing list
ippm@ietf.org
https://www.ietf.org/mailman/listinfo/ippm
 =20
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<html><head></head><body><div class=3D"ydp2ce1c4b1yahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px=
;"><div><div dir=3D"ltr" data-setdir=3D"false">All,</div><div dir=3D"ltr" d=
ata-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">Here =
is a recording of the side meeting for any who are interested.</div><div di=
r=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"f=
alse"><a href=3D"https://www.youtube.com/watch?v=3DecZFwt2VsFo" rel=3D"nofo=
llow" target=3D"_blank" class=3D"enhancr_card_9216166039">PDMv2 Side Meetin=
g</a></div><div><br></div><div class=3D"ydp2ce1c4b1signature">Thanks,<br><b=
r>Nalini Elkins<br>CEO and Founder<br>Inside Products, Inc.<br>www.insideth=
estack.com<br>(831) 659-8360</div></div>
        <div><br></div><div><br></div>
       =20
        </div><div id=3D"ydpa4c844b4yahoo_quoted_9945067010" class=3D"ydpa4=
c844b4yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Sunday, August 15, 2021, 08:12:09 PM PDT, nalini.elk=
ins@insidethestack.com &lt;nalini.elkins@insidethestack.com&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"ydpa4c844b4yiv1394209027"><div><div class=
=3D"ydpa4c844b4yiv1394209027yahoo-style-wrap" style=3D"font-family:Helvetic=
a Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div>Hello All,</div>=
<div><br></div><div>We had a very good discussion at the side meeting at IE=
TF111 of draft-elkins-ippm-encrypted-pdmv2-00.</div><div><br></div><div>We =
are discussing encryption of the PDM Destination Option and the best way to=
 do this.</div><div><br></div><div>You may download the slides for the side=
 meeting at:&nbsp;</div><div><br></div><div dir=3D"ltr">http://www.insideth=
estack.com/public/<span>FullPresentationForPDMv2SideMeeting.pdf</span></div=
><div dir=3D"ltr"><span><br></span></div><div dir=3D"ltr"><span>We will als=
o have meetings to discuss this every two weeks starting on Friday, August =
20th at 9:00am pacific.&nbsp; &nbsp;Please let me know if you would like to=
 attend and I can give you the Zoom link.</span></div><div dir=3D"ltr"><br>=
</div><div dir=3D"ltr">Thanks,<br></div><br>Nalini Elkins<br>CEO and Founde=
r<br>Inside Products, Inc.<br>www.insidethestack.com<br>(831) 659-8360</div=
></div></div>_______________________________________________<br>ippm mailin=
g list<br><a href=3D"mailto:ippm@ietf.org" rel=3D"nofollow" target=3D"_blan=
k">ippm@ietf.org</a><br><a href=3D"https://www.ietf.org/mailman/listinfo/ip=
pm" rel=3D"nofollow" target=3D"_blank">https://www.ietf.org/mailman/listinf=
o/ippm</a><br></div>
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        </div></body></html>
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From: "MORTON JR., AL" <acmorton@att.com>
To: Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>, "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
Thread-Topic: [ippm] Adoption call for IOAM deployment and integrity documents
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ippm/wNxHWd50ALdA2HRyXhC32qCvLf4>
Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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Hi Tommy & Ian, Authors, and IPPM,

I took a look at the other draft the WG is considering.

TL;DR: I support adoption, and further development/review.

For In-situ OAM Deployment, the first sentence of the Abstract is the same =
as data Integrity, so same comment.

I note that this draft is intended as a BCP. It will be interesting to see =
if there is sufficient experience when the WG is reaching consensus to warr=
ant BCP status, and we can leave this aspiration intact during WG adoption,=
 IMO.

I appreciate that Section 4 (Types of IOAM) motivates deployment by describ=
ing use cases. But after introducing IOAM node roles, the draft should use =
that terminology in this section. Also, the ECMP acronym and load balancing=
 got mixed together in an odd way. Last, "end-to-end" is used ambiguously i=
n the Operations/Troubleshooting bullet:

Current:
   o  Per-hop tracing: OAM information about each IOAM node a packet
      traverses is collected and stored within the user data packet as
      the packet progresses through the IOAM domain.  Potential uses of
      IOAM per-hop tracing include:

      *  Optimization: Understand the different paths different packets
         traverse between a source and a sink in a network that uses
         load balancing such as Equal Cost Load Balancing (ECMP).  This
         information could be used to tune the algorithm for ECMP for
         optimized network resource usage.

      *  Operations/Troubleshooting: Understand which path a particular
         packet or set of packets take as well as what amount of jitter
         and delay different nodes in the path contribute to the overall
         end-to-end delay and jitter.

Suggest:
   o  Per-hop tracing: OAM information about each IOAM node a packet
      traverses is collected and stored within the user data packet as
      the packet progresses through the IOAM domain.  Potential uses of
      IOAM per-hop tracing include:

      *  Optimization: Understand the different paths different packets
|        traverse between a Encapsulating and a Decapsulating node in a net=
work that uses
|        load balancing such as Equal Cost Multi-Path (ECMP).  This
         information could be used to tune the algorithm for ECMP for
         optimized network resource usage.

      *  Operations/Troubleshooting: Understand which path a particular
         packet or set of packets take as well as what amount of jitter
|        and delay different IOAM nodes in the path contribute to the overa=
ll
|        <source host to destination host ??> delay and jitter.


There seem to be many options for deployment, such as whether to use IOAM D=
irect Export in *Transit Nodes*, but it seems that some form of export is r=
equired at the edge nodes (Encap & Decap). In the context of this draft as =
a BCP, what (export) option is best for certain circumstances?

The term "best" only appears twice, on the first page. So please look for s=
ome circumstances where the best choice of options is clear, and call them =
out specifically, like "Pre-allocated Trace-Option is best-suited for softw=
are packet forwarder implementations." But
      "The operator has to ensure that the packet with the pre-allocated
      array that carries the IOAM Data-Fields does not exceed the MTU of
      any of the links in the IOAM domain."
The material provided in Section 7.3. IOAM Trace Option Types is closer to =
a BCP than other parts of the draft.

Regarding:
      ..."The operator
      has to ensure that the minimum MTU of any of the links in the IOAM
      domain is known to all IOAM transit nodes."
Each IOAM node knows the MTU of all its interconnecting links. So:
 - Isn't there some way the IOAM nodes can take the burden to discover and =
share the MTU info within the domain?
 - In a network domain with non-IOAM nodes and IOAM nodes, in what deployme=
nt scenario would the MTU-view of the IOAM nodes remain valid for the entir=
e domain?

In 7.6 IOAM Active Mode:
(I'm sorry, I fell off the sled completely here.)

   The IOAM active mode flag indicates that a packet is an active OAM
   packet as opposed to regular user data traffic.  Active mode is
   expected to be used for active measurement using IOAM.  Example use-
   cases include:

   o  Endpoint detailed active measurement: Synthetic probe packets are
      sent between the source and destination, traversing the IOAM
      domain.  These probe packets include a Trace Option-Type (i.e.,
      either incremental or pre-allocated).
Are the source and destination outside the IOAM Domain?  Figure 1 of the fl=
ags draft says yes (?).
(But the packets seem to carry IOAM information/data into the domain, someh=
ow.)

      Since the probe packets are
      sent between the endpoints, these packets are treated as data
      packets by the IOAM domain, and do not require special treatment
      at the IOAM layer.
So, the probe packets ARE encapsulated, like other data packets would be?
("do not require special treatment" is not clear to me.)

               The encapsulating node can choose to set the
      Active flag, providing an explicit indication that these probe
      packets are meant for telemetry collection.

Ok, but the flags draft says:
     The active flag indicates that a packet is used for active
     measurement.  An IOAM decapsulating node that receives a packet with
     the Active flag set in one of its Trace options must terminate the
     packet.
and then the Synthetic probe packets don't reach the intended destination,
beyond the IOAM domain ?? It would be good to make this clear(er).

In any case, I suggest to move the reference to the flags draft:
   For details on IOAM active mode, please refer to
   [I-D.ietf-ippm-ioam-flags].
very early in this section - don't place this reference in the last sentenc=
e.

hope this helps,
Al


From: ippm <ippm-bounces@ietf.org> On Behalf Of Tommy Pauly
Sent: Tuesday, August 3, 2021 12:29 PM
To: IETF IPPM WG (ippm@ietf.org) <ippm@ietf.org>
Subject: [ippm] Adoption call for IOAM deployment and integrity documents

Hello IPPM,

As discussed in our meeting last week, we will be starting an adoption call=
 for two IOAM-related documents that have been raised as important dependen=
cies during the IESG review of IOAM-data.

This email begins a Working Group adoption call for two documents:

Integrity of In-situ OAM Data Fields
https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/<=
https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/draft-brockners=
-ippm-ioam-data-integrity/__;!!BhdT!0Ny1D5V4maIuQ6qGnzMqhb2g1XeWhqAWW3MMMWL=
T5TI-730YRx2JHVbaSFNx$>
https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03=
.html<https://urldefense.com/v3/__https:/www.ietf.org/archive/id/draft-broc=
kners-ippm-ioam-data-integrity-03.html__;!!BhdT!0Ny1D5V4maIuQ6qGnzMqhb2g1Xe=
WhqAWW3MMMWLT5TI-730YRx2JHQVTAIy3$>

In-situ OAM Deployment
https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/<ht=
tps://urldefense.com/v3/__https:/datatracker.ietf.org/doc/draft-brockners-o=
psawg-ioam-deployment/__;!!BhdT!0Ny1D5V4maIuQ6qGnzMqhb2g1XeWhqAWW3MMMWLT5TI=
-730YRx2JHUSOBrbQ$>
https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deploymen=
t-03<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draft=
-brockners-opsawg-ioam-deployment-03__;!!BhdT!0Ny1D5V4maIuQ6qGnzMqhb2g1XeWh=
qAWW3MMMWLT5TI-730YRx2JHWwp9dBH$>

This call will last until Wednesday, August 18. Please reply to this email =
with your comments, and if you think these documents should be taken on by =
IPPM.

Best,
Tommy & Ian

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<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading"/=
>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
1"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
1"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
ccent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
ccent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
nt 1"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" Name=3D"Revision"/>
<w:LsdException Locked=3D"false" Priority=3D"34" QFormat=3D"true" Name=3D"L=
ist Paragraph"/>
<w:LsdException Locked=3D"false" Priority=3D"29" QFormat=3D"true" Name=3D"Q=
uote"/>
<w:LsdException Locked=3D"false" Priority=3D"30" QFormat=3D"true" Name=3D"I=
ntense Quote"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 1=
"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
ccent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
2"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
2"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
ccent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
ccent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 2=
"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
ccent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
3"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
3"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
ccent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
ccent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 3=
"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
ccent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
4"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
4"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
ccent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
ccent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 4=
"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
ccent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
5"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
5"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
ccent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
ccent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 5=
"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
ccent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
6"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
6"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
ccent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
ccent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 6=
"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
ccent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"19" QFormat=3D"true" Name=3D"S=
ubtle Emphasis"/>
<w:LsdException Locked=3D"false" Priority=3D"21" QFormat=3D"true" Name=3D"I=
ntense Emphasis"/>
<w:LsdException Locked=3D"false" Priority=3D"31" QFormat=3D"true" Name=3D"S=
ubtle Reference"/>
<w:LsdException Locked=3D"false" Priority=3D"32" QFormat=3D"true" Name=3D"I=
ntense Reference"/>
<w:LsdException Locked=3D"false" Priority=3D"33" QFormat=3D"true" Name=3D"B=
ook Title"/>
<w:LsdException Locked=3D"false" Priority=3D"37" SemiHidden=3D"true" Unhide=
WhenUsed=3D"true" Name=3D"Bibliography"/>
<w:LsdException Locked=3D"false" Priority=3D"39" SemiHidden=3D"true" Unhide=
WhenUsed=3D"true" QFormat=3D"true" Name=3D"TOC Heading"/>
<w:LsdException Locked=3D"false" Priority=3D"41" Name=3D"Plain Table 1"/>
<w:LsdException Locked=3D"false" Priority=3D"42" Name=3D"Plain Table 2"/>
<w:LsdException Locked=3D"false" Priority=3D"43" Name=3D"Plain Table 3"/>
<w:LsdException Locked=3D"false" Priority=3D"44" Name=3D"Plain Table 4"/>
<w:LsdException Locked=3D"false" Priority=3D"45" Name=3D"Plain Table 5"/>
<w:LsdException Locked=3D"false" Priority=3D"40" Name=3D"Grid Table Light"/=
>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark"=
/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
 Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 Accen=
t 1"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 Accen=
t 1"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 Accen=
t 1"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark =
Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
 Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 Accen=
t 2"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 Accen=
t 2"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 Accen=
t 2"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark =
Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
 Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 Accen=
t 3"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 Accen=
t 3"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 Accen=
t 3"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark =
Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
 Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 Accen=
t 4"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 Accen=
t 4"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 Accen=
t 4"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark =
Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
 Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 Accen=
t 5"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 Accen=
t 5"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 Accen=
t 5"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark =
Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
 Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 Accen=
t 6"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 Accen=
t 6"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 Accen=
t 6"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark =
Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 Light=
"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 Dark"=
/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"List Table 6 Color=
ful"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"List Table 7 Color=
ful"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 Light=
 Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2 Accen=
t 1"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3 Accen=
t 1"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4 Accen=
t 1"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 Dark =
Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"List Table 6 Color=
ful Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"List Table 7 Color=
ful Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 Light=
 Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2 Accen=
t 2"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3 Accen=
t 2"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4 Accen=
t 2"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 Dark =
Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"List Table 6 Color=
ful Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"List Table 7 Color=
ful Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 Light=
 Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2 Accen=
t 3"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3 Accen=
t 3"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4 Accen=
t 3"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 Dark =
Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"List Table 6 Color=
ful Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"List Table 7 Color=
ful Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 Light=
 Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2 Accen=
t 4"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3 Accen=
t 4"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4 Accen=
t 4"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 Dark =
Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"List Table 6 Color=
ful Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"List Table 7 Color=
ful Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 Light=
 Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2 Accen=
t 5"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3 Accen=
t 5"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4 Accen=
t 5"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 Dark =
Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"List Table 6 Color=
ful Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"List Table 7 Color=
ful Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 Light=
 Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2 Accen=
t 6"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3 Accen=
t 6"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4 Accen=
t 6"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 Dark =
Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"List Table 6 Color=
ful Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"List Table 7 Color=
ful Accent 6"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"Mention"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"Smart Hyperlink"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"Hashtag"/>
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</head>
<body lang=3D"EN-US" link=3D"blue" vlink=3D"purple" style=3D"tab-interval:.=
5in;word-wrap:break-word">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">Hi Tommy &amp; Ian, Authors, and IPPM,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">I took a look at the other draft the WG is considering.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">TL;DR: I support adoption, and further development/review.<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">For In-situ OAM Deployment, the first sentence of the Abstract =
is the same as data Integrity, so same comment.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">I note that this draft is intended as a BCP. It will be interes=
ting to see if there is sufficient experience when the WG is reaching conse=
nsus to warrant BCP status, and we can leave this
 aspiration intact during WG adoption, IMO.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">I appreciate that Section 4 (Types of IOAM) motivates deploymen=
t by describing use cases. But after introducing IOAM node roles, the draft=
 should use that terminology in this section.
 Also, the ECMP acronym and load balancing got mixed together in an odd way=
. Last, &#8220;end-to-end&#8221; is used ambiguously in the Operations/Trou=
bleshooting bullet:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">Current:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>o<span style=3D"mso-spacerun:yes">&nbsp; </span>Per-hop tracing: OAM=
 information about each IOAM node a packet<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>traverses is collected and stored within the user data packet as<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>the packet progresses through the IOAM domain.<span style=3D"mso-spa=
cerun:yes">&nbsp;
</span>Potential uses of<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>IOAM per-hop tracing include:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>*<span style=3D"mso-spacerun:yes">&nbsp; </span>Optimization: Unders=
tand the different paths different packets<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;
</span>traverse between a source and a sink in a network that uses<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;
</span>load balancing such as Equal Cost Load Balancing (ECMP).<span style=
=3D"mso-spacerun:yes">&nbsp;
</span>This<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;
</span>information could be used to tune the algorithm for ECMP for<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;
</span>optimized network resource usage.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>*<span style=3D"mso-spacerun:yes">&nbsp; </span>Operations/Troublesh=
ooting: Understand which path a particular<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;
</span>packet or set of packets take as well as what amount of jitter<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;
</span>and delay different nodes in the path contribute to the overall<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;
</span>end-to-end delay and jitter.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">Suggest:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>o<span style=3D"mso-spacerun:yes">&nbsp; </span>Per-hop tracing: OAM=
 information about each IOAM node a packet<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>traverses is collected and stored within the user data packet as<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>the packet progresses through the IOAM domain.<span style=3D"mso-spa=
cerun:yes">&nbsp;
</span>Potential uses of<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>IOAM per-hop tracing include:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>*<span style=3D"mso-spacerun:yes">&nbsp; </span>Optimization: Unders=
tand the different paths different packets<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">|<span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;
</span>traverse between a Encapsulating and a Decapsulating node in a netwo=
rk that uses<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">|<span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;
</span>load balancing such as Equal Cost Multi-Path (ECMP).<span style=3D"m=
so-spacerun:yes">&nbsp;
</span>This<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;
</span>information could be used to tune the algorithm for ECMP for<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;
</span>optimized network resource usage.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>*<span style=3D"mso-spacerun:yes">&nbsp; </span>Operations/Troublesh=
ooting: Understand which path a particular<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;
</span>packet or set of packets take as well as what amount of jitter<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">|<span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;
</span>and delay different IOAM nodes in the path contribute to the overall=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">|<span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;
</span>&lt;source host to destination host ??&gt; delay and jitter.<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">There seem to be many options for deployment, such as whether t=
o use IOAM Direct Export in *<b>Transit Nodes</b>*, but it seems that some =
form of export is required at the edge nodes (<span class=3D"SpellE">Encap<=
/span>
 &amp; <span class=3D"SpellE">Decap</span>). In the context of this draft a=
s a BCP, what (export) option is best for certain circumstances?<span style=
=3D"mso-spacerun:yes">&nbsp;
</span><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">The term &#8220;best&#8221; only appears twice, on the first pa=
ge. So please look for some circumstances where the best choice of options =
is clear, and call them out specifically, like &#8220;Pre-allocated
 Trace-Option is best-suited for software packet forwarder implementations.=
&#8221; But <span style=3D"mso-spacerun:yes">
&nbsp;</span><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;</span>&#8220;The operator has to ensure that the packet with the pre=
-allocated<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>array that carries the IOAM Data-Fields does not exceed the MTU of<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>any of the links in the IOAM domain.&#8221;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">The material provided in Section 7.3. IOAM Trace Option Types i=
s closer to a BCP than other parts of the draft.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">Regarding:
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;</span>...&#8220;The operator<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>has to ensure that the minimum MTU of any of the links in the IOAM<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>domain is known to all IOAM transit nodes.&#8221;<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">Each IOAM node knows the MTU of all its interconnecting links. =
So:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;</span>- Isn&#8217;t the=
re some way the IOAM nodes can take the burden to discover and share the MT=
U info within the domain?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;</span>- In a network do=
main with non-IOAM nodes and IOAM nodes, in what deployment scenario would =
the MTU-view of the IOAM nodes remain valid for the entire
 domain?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">In 7.6 IOAM Active Mode:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">(I&#8217;m sorry, I fell off the sled completely here.)<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>The IOAM active mode flag indicates that a packet is an active OAM<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>packet as opposed to regular user data traffic.<span style=3D"mso-sp=
acerun:yes">&nbsp;
</span>Active mode is<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>expected to be used for active measurement using IOAM.<span style=3D=
"mso-spacerun:yes">&nbsp;
</span>Example use-<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>cases include:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>o<span style=3D"mso-spacerun:yes">&nbsp; </span>Endpoint detailed ac=
tive measurement: Synthetic probe packets are<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>sent between the source and destination, traversing the IOAM<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>domain.<span style=3D"mso-spacerun:yes">&nbsp; </span>These probe pa=
ckets include a Trace Option-Type (i.e.,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>either incremental or pre-allocated).<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">Are the source and destination outside the IOAM Domain?<span st=
yle=3D"mso-spacerun:yes">&nbsp;
</span>Figure 1 of the flags draft says yes (?).<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">(But the packets seem to carry IOAM information/data into the d=
omain, somehow.)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;
</span><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;</span>Since the probe =
packets are<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>sent between the endpoints, these packets are treated as data<o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>packets by the IOAM domain, and do not require special treatment<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>at the IOAM layer.</span> <o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">So, the probe packets ARE encapsulated, like other data packets=
 would be?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">(&#8220;do not require special treatment&#8221; is not clear to=
 me.)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><s=
pan style=3D"font-family:&quot;Courier New&quot;;color:black">The encapsula=
ting node can choose to set the<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>Active flag, providing an explicit indication that these probe<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>packets are meant for telemetry collection.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">Ok, but the flags draft says:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;</span>The active flag =
indicates that a packet is used for active<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;
</span><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;</span><span style=3D"m=
so-spacerun:yes">&nbsp;</span>measurement.<span style=3D"mso-spacerun:yes">=
&nbsp;
</span>An IOAM decapsulating node that receives a packet with<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;</span>the Active flag =
set in one of its Trace options must terminate the<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black"><span style=3D"mso-spacerun:yes">&nbsp;
</span><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;</span><span style=3D"m=
so-spacerun:yes">&nbsp;</span>packet.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;c=
olor:black">and then the Synthetic probe packets don&#8217;t reach the inte=
nded destination,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"tab-stops:206.4pt"><span style=3D"font-fami=
ly:&quot;Courier New&quot;;color:black">beyond the IOAM domain ?? It would =
be good to make this clear(er).<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"tab-stops:206.4pt"><span style=3D"font-fami=
ly:&quot;Courier New&quot;;color:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"tab-stops:206.4pt"><span style=3D"font-fami=
ly:&quot;Courier New&quot;;color:black">In any case, I suggest to move the =
reference to the flags draft:<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"tab-stops:206.4pt"><span style=3D"font-fami=
ly:&quot;Courier New&quot;;color:black"><span style=3D"mso-spacerun:yes">&n=
bsp;&nbsp;
</span>For details on IOAM active mode, please refer to<o:p></o:p></span></=
p>
<p class=3D"MsoNormal" style=3D"tab-stops:206.4pt"><span style=3D"font-fami=
ly:&quot;Courier New&quot;;color:black"><span style=3D"mso-spacerun:yes">&n=
bsp;&nbsp;
</span>[I-<span class=3D"SpellE">D.ietf</span>-<span class=3D"SpellE">ippm<=
/span>-<span class=3D"SpellE">ioam</span>-flags].<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;m=
so-bidi-font-family:&quot;Times New Roman&quot;">very early in this section=
 &#8211; don&#8217;t place this reference in the last sentence.<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;m=
so-bidi-font-family:&quot;Times New Roman&quot;"><o:p>&nbsp;</o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;m=
so-bidi-font-family:&quot;Times New Roman&quot;">hope this helps,<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;m=
so-bidi-font-family:&quot;Times New Roman&quot;">Al<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;m=
so-bidi-font-family:&quot;Times New Roman&quot;"><o:p>&nbsp;</o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;;m=
so-bidi-font-family:&quot;Times New Roman&quot;"><o:p>&nbsp;</o:p></span></=
p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"mso-fareast-font-family:&quot;Time=
s New Roman&quot;">From:</span></b><span style=3D"mso-fareast-font-family:&=
quot;Times New Roman&quot;"> ippm &lt;ippm-bounces@ietf.org&gt;
<b>On Behalf Of </b>Tommy Pauly<br>
<b>Sent:</b> Tuesday, August 3, 2021 12:29 PM<br>
<b>To:</b> IETF IPPM WG (ippm@ietf.org) &lt;ippm@ietf.org&gt;<br>
<b>Subject:</b> [ippm] Adoption call for IOAM deployment and integrity docu=
ments<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;">Hello IPPM,<o:p></o:p></span></p>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;">As discussed in our meeting last week, we will be starting =
an adoption call for two IOAM-related documents that have been raised as im=
portant dependencies during the IESG review of
 IOAM-data.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;">This email begins a Working Group adoption call for two doc=
uments:<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;">Integrity of In-situ OAM Data Fields<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;"><a href=3D"https://urldefense.com/v3/__https:/datatracker.i=
etf.org/doc/draft-brockners-ippm-ioam-data-integrity/__;!!BhdT!0Ny1D5V4maIu=
Q6qGnzMqhb2g1XeWhqAWW3MMMWLT5TI-730YRx2JHVbaSFNx$">https://datatracker.ietf=
.org/doc/draft-brockners-ippm-ioam-data-integrity/</a><o:p></o:p></span></p=
>
</div>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;"><a href=3D"https://urldefense.com/v3/__https:/www.ietf.org/=
archive/id/draft-brockners-ippm-ioam-data-integrity-03.html__;!!BhdT!0Ny1D5=
V4maIuQ6qGnzMqhb2g1XeWhqAWW3MMMWLT5TI-730YRx2JHQVTAIy3$">https://www.ietf.o=
rg/archive/id/draft-brockners-ippm-ioam-data-integrity-03.html</a><o:p></o:=
p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;">In-situ OAM Deployment<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;"><a href=3D"https://urldefense.com/v3/__https:/datatracker.i=
etf.org/doc/draft-brockners-opsawg-ioam-deployment/__;!!BhdT!0Ny1D5V4maIuQ6=
qGnzMqhb2g1XeWhqAWW3MMMWLT5TI-730YRx2JHUSOBrbQ$">https://datatracker.ietf.o=
rg/doc/draft-brockners-opsawg-ioam-deployment/</a><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;"><a href=3D"https://urldefense.com/v3/__https:/datatracker.i=
etf.org/doc/html/draft-brockners-opsawg-ioam-deployment-03__;!!BhdT!0Ny1D5V=
4maIuQ6qGnzMqhb2g1XeWhqAWW3MMMWLT5TI-730YRx2JHWwp9dBH$">https://datatracker=
.ietf.org/doc/html/draft-brockners-opsawg-ioam-deployment-03</a><o:p></o:p>=
</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;">This call will last until
<b>Wednesday, August 18</b>. Please reply to this email with your comments,=
 and if you think these documents should be taken on by IPPM.<o:p></o:p></s=
pan></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;">Best,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-font-family:&quot;Times N=
ew Roman&quot;">Tommy &amp; Ian<o:p></o:p></span></p>
</div>
</div>
</div>
</body>
</html>

--_000_SJ0PR02MB78531CFBA742399273C6BC93D3FD9SJ0PR02MB7853namp_--


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From: "Ackermann, Michael" <MAckermann@bcbsm.com>
To: Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>, "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
Thread-Topic: [ippm] Adoption call for IOAM deployment and integrity documents
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ippm/BdiJpMk-AL3nDE5QHbsRSUi1Iyo>
Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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This is excellent work and I support it's adoption.

IOAM will provide operators critical management information that is badly =
lacking today.  This is a reason many enterprises delay IPv6 deployment =
and IOAM will be very beneficial in this regard and others as well.

Providing integrity will also remove another set of deployment related =
concerns.

Other key concerns are in the areas of operational adding complexity and =
resulting overhead or potential performance issues.    These areas seem to =
be addressed in the draft as well, but I have a related question/concern.
 As an enterprise operator, deploying anything new is always a challenge.  =
And if other new solutions for integrity of EHs choose different =
solutions, then this challenge becomes magnified.  Then potentially add =
confidentiality , authentication, etc. and the situation could quickly =
become a morass of solutions.    So my question is  if there is any chance =
of considering a more holistic approach to related or similar solutions?

Once again, please keep up the great work=21

Thanks

Mike

From: ippm <ippm-bounces=40ietf.org> On Behalf Of Tommy Pauly
Sent: Tuesday, August 3, 2021 12:29 PM
To: IETF IPPM WG (ippm=40ietf.org) <ippm=40ietf.org>
Subject: =5Bippm=5D Adoption call for IOAM deployment and integrity =
documents

=5BExternal email=5D
Hello IPPM,

As discussed in our meeting last week, we will be starting an adoption =
call for two IOAM-related documents that have been raised as important =
dependencies during the IESG review of IOAM-data.

This email begins a Working Group adoption call for two documents:

Integrity of In-situ OAM Data Fields
https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/
https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-03=
=2Ehtml

In-situ OAM Deployment
https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/
https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deploymen=
t-03

This call will last until Wednesday, August 18. Please reply to this email =
with your comments, and if you think these documents should be taken on by =
IPPM.

Best,
Tommy & Ian


The information contained in this communication is highly confidential and =
is intended solely for the use of the individual(s) to whom this =
communication is directed. If you are not the intended recipient, you are =
hereby notified that any viewing, copying, disclosure or distribution of =
this information is prohibited. Please notify the sender, by electronic =
mail or telephone, of any unintended receipt and delete the original =
message without making any copies.
=20
 Blue Cross Blue Shield of Michigan and Blue Care Network of Michigan are =
nonprofit corporations and independent licensees of the Blue Cross and =
Blue Shield Association.


This message was secured by Zix(R).

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<div class=3D=22WordSection1=22>
<p class=3D=22MsoNormal=22>This is excellent work and I support =
it&=238217;s adoption.&nbsp; <o:p></o:p></p>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
<p class=3D=22MsoNormal=22>IOAM will provide operators critical management =
information that is badly lacking today.&nbsp; This is a reason many =
enterprises delay IPv6 deployment and IOAM will be very beneficial in this =
regard and others as well.&nbsp;
<o:p></o:p></p>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
<p class=3D=22MsoNormal=22>Providing integrity will also remove another =
set of deployment related concerns.&nbsp;&nbsp;
<o:p></o:p></p>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
<p class=3D=22MsoNormal=22>Other key concerns are in the areas of =
operational adding complexity and resulting overhead or potential =
performance issues.&nbsp;&nbsp; &nbsp;These areas seem to be addressed in =
the draft as well, but I have a related question/concern.&nbsp;
<o:p></o:p></p>
<p class=3D=22MsoNormal=22>&nbsp;As an enterprise operator, deploying =
anything new is always a challenge.&nbsp; And if other new solutions for =
integrity of EHs choose different solutions, then this challenge becomes =
magnified.&nbsp; Then potentially add confidentiality , authentication,
 etc. and the situation could quickly become a morass of solutions.&nbsp; =
&nbsp;&nbsp;So my question is &nbsp;if there is any chance of considering =
a more holistic approach to related or similar solutions?&nbsp;
<o:p></o:p></p>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
<p class=3D=22MsoNormal=22>Once again, please keep up the great =
work=21<o:p></o:p></p>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
<p class=3D=22MsoNormal=22>Thanks<o:p></o:p></p>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
<p class=3D=22MsoNormal=22>Mike <o:p></o:p></p>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
<div>
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0in 0in 0in=22>
<p class=3D=22MsoNormal=22><b>From:</b> ippm =
&lt;ippm-bounces=40ietf.org&gt; <b>On Behalf Of </b>
Tommy Pauly<br>
<b>Sent:</b> Tuesday, August 3, 2021 12:29 PM<br>
<b>To:</b> IETF IPPM WG (ippm=40ietf.org) &lt;ippm=40ietf.org&gt;<br>
<b>Subject:</b> =5Bippm=5D Adoption call for IOAM deployment and integrity =
documents<o:p></o:p></p>
</div>
</div>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
<p class=3D=22MsoNormal=22 style=3D=22margin-bottom:12.0pt=22><span =
style=3D=22color:red=22>=5BExternal email=5D
</span><o:p></o:p></p>
<div>
<p class=3D=22MsoNormal=22>Hello IPPM, <o:p></o:p></p>
<div>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22>As discussed in our meeting last week, we will =
be starting an adoption call for two IOAM-related documents that have been =
raised as important dependencies during the IESG review of =
IOAM-data.<o:p></o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22>This email begins a Working Group adoption call =
for two documents:<o:p></o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
</div>
<div>
<div>
<p class=3D=22MsoNormal=22>Integrity of In-situ OAM Data =
Fields<o:p></o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22><a =
href=3D=22https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-i=
ntegrity/=22>https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-dat=
a-integrity/</a><o:p></o:p></p>
</div>
</div>
<div>
<p class=3D=22MsoNormal=22><a =
href=3D=22https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-in=
tegrity-03.html=22>https://www.ietf.org/archive/id/draft-brockners-ippm-ioa=
m-data-integrity-03.html</a><o:p></o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22>In-situ OAM Deployment<o:p></o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22><a =
href=3D=22https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-depl=
oyment/=22>https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-dep=
loyment/</a><o:p></o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22><a =
href=3D=22https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam=
-deployment-03=22>https://datatracker.ietf.org/doc/html/draft-brockners-ops=
awg-ioam-deployment-03</a><o:p></o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22>This call will last until <b>Wednesday, August =
18</b>. Please reply to this email with your comments, and if you think =
these documents should be taken on by IPPM.<o:p></o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22>Best,<o:p></o:p></p>
</div>
<div>
<p class=3D=22MsoNormal=22>Tommy &amp; Ian<o:p></o:p></p>
</div>
</div>
</div>
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From: "Frank Brockners (fbrockne)" <fbrockne@cisco.com>
To: "MORTON JR., AL" <acmorton@att.com>, Tommy Pauly <tpauly=40apple.com@dmarc.ietf.org>, "IETF IPPM WG (ippm@ietf.org)" <ippm@ietf.org>
Thread-Topic: [ippm] Adoption call for IOAM deployment and integrity documents
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Date: Tue, 17 Aug 2021 18:54:21 +0000
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Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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From: Tommy Pauly <tpauly@apple.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ippm/DUw2DcgnxCd6ly0jNdqRHgpKp6k>
Subject: Re: [ippm] Adoption call for IOAM deployment and integrity documents
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Hello IPPM,

Thanks to everyone who provided feedback and reviews of these documents! =
We do have WG support for adopting these.

Authors, please submit draft-ietf-ippm-*-00 versions when ready, ideally =
incorporating any comments received during the adoption call.

Best,
Tommy & Ian

> On Aug 3, 2021, at 9:28 AM, Tommy Pauly =
<tpauly=3D40apple.com@dmarc.ietf.org> wrote:
>=20
> Hello IPPM,
>=20
> As discussed in our meeting last week, we will be starting an adoption =
call for two IOAM-related documents that have been raised as important =
dependencies during the IESG review of IOAM-data.
>=20
> This email begins a Working Group adoption call for two documents:
>=20
> Integrity of In-situ OAM Data Fields
> =
https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity/=
 =
<https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-integrity=
/>
> =
https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-0=
3.html =
<https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-integrity-=
03.html>
>=20
> In-situ OAM Deployment
> =
https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/ =
<https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deployment/>=

> =
https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deployme=
nt-03 =
<https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-deploym=
ent-03>
>=20
> This call will last until Wednesday, August 18. Please reply to this =
email with your comments, and if you think these documents should be =
taken on by IPPM.
>=20
> Best,
> Tommy & Ian
> _______________________________________________
> ippm mailing list
> ippm@ietf.org
> https://www.ietf.org/mailman/listinfo/ippm


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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; line-break: after-white-space;" class=3D"">Hello=
 IPPM,<div class=3D""><br class=3D""></div><div class=3D"">Thanks to =
everyone who provided feedback and reviews of these documents! We do =
have WG support for adopting these.</div><div class=3D""><br =
class=3D""></div><div class=3D"">Authors, please submit =
draft-ietf-ippm-*-00 versions when ready, ideally incorporating any =
comments received during the adoption call.</div><div class=3D""><br =
class=3D""></div><div class=3D"">Best,</div><div class=3D"">Tommy &amp; =
Ian<br class=3D""><div class=3D""><div><br class=3D""><blockquote =
type=3D"cite" class=3D""><div class=3D"">On Aug 3, 2021, at 9:28 AM, =
Tommy Pauly &lt;<a href=3D"mailto:tpauly=3D40apple.com@dmarc.ietf.org" =
class=3D"">tpauly=3D40apple.com@dmarc.ietf.org</a>&gt; wrote:</div><br =
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space; line-break: after-white-space;" class=3D"">Hello IPPM,<div =
class=3D""><br class=3D""></div><div class=3D"">As discussed in our =
meeting last week, we will be starting an adoption call for two =
IOAM-related documents that have been raised as important dependencies =
during the IESG review of IOAM-data.</div><div class=3D""><br =
class=3D""></div><div class=3D"">This email begins a Working Group =
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class=3D""></div><div class=3D""><div class=3D"">Integrity of In-situ =
OAM Data Fields</div><div class=3D""><a =
href=3D"https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data-in=
tegrity/" =
class=3D"">https://datatracker.ietf.org/doc/draft-brockners-ippm-ioam-data=
-integrity/</a></div></div><div class=3D""><a =
href=3D"https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-int=
egrity-03.html" =
class=3D"">https://www.ietf.org/archive/id/draft-brockners-ippm-ioam-data-=
integrity-03.html</a></div><div class=3D""><br class=3D""></div><div =
class=3D"">In-situ OAM Deployment</div><div class=3D""><a =
href=3D"https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-deplo=
yment/" =
class=3D"">https://datatracker.ietf.org/doc/draft-brockners-opsawg-ioam-de=
ployment/</a></div><div class=3D""><a =
href=3D"https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-ioam-=
deployment-03" =
class=3D"">https://datatracker.ietf.org/doc/html/draft-brockners-opsawg-io=
am-deployment-03</a></div><div class=3D""><br class=3D""></div><div =
class=3D"">This call will last until <b class=3D"">Wednesday, August =
18</b>. Please reply to this email with your comments, and if you think =
these documents should be taken on by IPPM.</div><div class=3D""><br =
class=3D""></div><div class=3D"">Best,</div><div class=3D"">Tommy &amp; =
Ian</div></div>_______________________________________________<br =
class=3D"">ippm mailing list<br class=3D""><a =
href=3D"mailto:ippm@ietf.org" class=3D"">ippm@ietf.org</a><br =
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class=3D""></div></blockquote></div><br =
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Date: Wed, 18 Aug 2021 15:01:42 -0700
From: Christoph Paasch <cpaasch@apple.com>
To: Erik Auerswald <auerswal@unix-ag.uni-kl.de>
Cc: bloat@lists.bufferbloat.net, draft-cpaasch-ippm-responsiveness@ietf.org, ippm@ietf.org
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Subject: Re: [ippm] [Bloat] Fwd: New Version Notification for draft-cpaasch-ippm-responsiveness-00.txt
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Hello Erik,

On 08/15/21 - 15:39, Erik Auerswald wrote:
> Hi,
> 
> I'd like to thank you for working on a nice I-D describing an interesting
> and IMHO useful network measurement metric.
> 
> Since feedback was asked for, I'd like to try and provide constructive
> feedback.

thanks a lot for your detailed feedback! Please see further inline.

> In general, I like the idea of "Round-trips per Minute" (RPM) as a
> metric used to characterize (one aspect of) a network.  I do think that
> introducing this would improve the status quo.  Since this RPM definition
> comprises a specific way of adding load to the network and measuring a
> complex metric, I think it is useful to "standardize" it.
> 
> I do not think RPM can replace all other metrics.  This is, in a way,
> mentioned in the introduction, where it is suggested to add RPM to
> existing measurement platforms.  As such I just want to point this out
> more explicitely, but do not intend to diminish the RPM idea by this.
> In short, I'd say it's complicated.

Yes, I fully agree that RPM is not the only metric. It is one among many.
If there is a sentiment in our document that sounds like "RPM is the only
that matters", please let me know where so we can reword the text.

> Bandwidth matters for bulk data transfer, e.g., downloading a huge update
> required for playing a multiplayer game online.
> 
> Minimum latency matters for the feasibility of interactive applications,
> e.g., controlling a toy car in your room vs. a robotic arm on the ISS
> from Earth vs. orbital insertion around Mars from Earth.  For a more
> mundane use case consider a voice conference.  (A good decade ago I
> experienced a voice conferencing system running over IP that introduced
> over one second of (minimum) latency and therefore was awkward to use.)

Wrt to minimum latency:

To some extend it is a subset of "RPM".
But admittedly, measuring minimum latency on its own is good for debugging
purposes and to know what one can get on a network that is not in persistent
working conditions.

> Expressing 'bufferbloat as a measure of "Round-trips per Minute" (RPM)'
> exhibits (at least) two problems:
> 
> 1. A high RPM value is associated with little bufferbloat problems.
> 
> 2. A low RPM value may be caused by high minimum delay instead of
>    bufferbloat.
> 
> I think that RPM (i.e., under working conditions) measures a network's
> usefulness for interactive applications, but not necessarily bufferbloat.

You are right and we are definitely misrepresenting this in the text.

I filed
https://github.com/network-quality/draft-cpaasch-ippm-responsiveness/issues/8.

If you want, feel free to submit a pull-request otherwise, we will get to
the issue in the next weeks.

> I do think that RPM is in itself more generally useful than minimum
> latency or bandwidth.
> 
> A combination of low minimum latency with low RPM value strongly hints
> at bufferbloat.  Other combinations are less easily characterized.
> 
> Bufferbloat can still lie in hiding, e.g., when a link with bufferbloat
> is not yet the bottleneck, or if the communications end-points are not
> yet able to saturate the network inbetween.  Thus high bandwidth can
> result in high RPM values despite (hidden) bufferbloat.
> 
> The "Measuring is Hard" section mentions additional complications.
> 
> All in all, I do think that "measuring bufferbloat" and "measuring RPM"
> should not be used synonymously.  The I-D title clearly shows this:
> RPM is measuring "Responsiveness under Working Conditions" which may be
> affected by bufferbloat, among other potential factors, but is not in
> itself bufferbloat.
> 
> Under the assumption that only a single value (performance score) is
> considered, I do think that RPM is more generally useful than bandwidth
> or idle latency.
> 
> On a meta-level, I think that the word "bufferbloat" is not used according
> to a single self-consistent definition in the I-D.

Fully agree with all your points above on how we misrepresented the relation
between RPM and bufferbloat.

> Additionally, I think that the I-D should reference DNS, HTTP/2, and
> TLS 1.3, since these protocols are required for implementing the RPM
> measurement.  The same for JSON, I think.  Possibly URL.

Yes, we have not given the references & citations enough care.
(https://github.com/network-quality/draft-cpaasch-ippm-responsiveness/issues/2)

> Using "rpm.example" instead of "example.apple.com" would result in shorter
> lines for the example JSON.
> 
> "host123.cdn.example" instead of "hostname123.cdnprovider.com" might be
> a more appropriate example DNS name.

Oups, we forgot to adjust these to a more generic hostname...
(https://github.com/network-quality/draft-cpaasch-ippm-responsiveness/issues/9)

> Adding an informative reference to RFC 2606 / BCP 32 might raise awareness
> of the existence of a BCP on example DNS names.
> 
> Please find both a unified diff against the text rendering of the I-D,
> and a word diff produced from the unified diff, attached to this email
> in order to suggest editorial changes that are intended to improve the
> reading experience.  They are intended for reading and (possibly partial)
> manual application, since the text rendering of an I-D is usually not
> the preferred form of editing it.

Thanks a lot for these
(https://github.com/network-quality/draft-cpaasch-ippm-responsiveness/issues/10)



Regards,
Christoph

> 
> Thanks,
> Erik
> -- 
> Always use the right tool for the job.
>                         -- Rob Pike
> 
> 
> On Fri, Aug 13, 2021 at 02:41:05PM -0700, Christoph Paasch via Bloat wrote:
> > I already posted this to the RPM-list, but the audience here on bloat should
> > be interested as well.
> > 
> > 
> > This is the specification of Apple's responsiveness/RPM test. We believe that it
> > would be good for the bufferbloat-effort to have a specification of how to
> > quantify the extend of bufferbloat from a user's perspective. Our
> > Internet-draft is a first step in that direction and we hope that it will
> > kick off some collaboration.
> > 
> > 
> > Feedback is very welcome!
> > 
> > 
> > Cheers,
> > Christoph
> > 
> > 
> > ----- Forwarded message from internet-drafts@ietf.org -----
> > 
> > From: internet-drafts@ietf.org
> > To: Christoph Paasch <cpaasch@apple.com>, Omer Shapira <oesh@apple.com>, Randall Meyer <rrm@apple.com>, Stuart Cheshire
> > 	<cheshire@apple.com>
> > Date: Fri, 13 Aug 2021 09:43:40 -0700
> > Subject: New Version Notification for draft-cpaasch-ippm-responsiveness-00.txt
> > 
> > 
> > A new version of I-D, draft-cpaasch-ippm-responsiveness-00.txt
> > has been successfully submitted by Christoph Paasch and posted to the
> > IETF repository.
> > 
> > Name:		draft-cpaasch-ippm-responsiveness
> > Revision:	00
> > Title:		Responsiveness under Working Conditions
> > Document date:	2021-08-13
> > Group:		Individual Submission
> > Pages:		12
> > URL:            https://www.ietf.org/archive/id/draft-cpaasch-ippm-responsiveness-00.txt
> > Status:         https://datatracker.ietf.org/doc/draft-cpaasch-ippm-responsiveness/
> > Htmlized:       https://datatracker.ietf.org/doc/html/draft-cpaasch-ippm-responsiveness
> > 
> > 
> > Abstract:
> >    Bufferbloat has been a long-standing problem on the Internet with
> >    more than a decade of work on standardizing technical solutions,
> >    implementations and testing.  However, to this date, bufferbloat is
> >    still a very common problem for the end-users.  Everyone "knows" that
> >    it is "normal" for a video conference to have problems when somebody
> >    else on the same home-network is watching a 4K movie.
> > 
> >    The reason for this problem is not the lack of technical solutions,
> >    but rather a lack of awareness of the problem-space, and a lack of
> >    tooling to accurately measure the problem.  We believe that exposing
> >    the problem of bufferbloat to the end-user by measuring the end-
> >    users' experience at a high level will help to create the necessary
> >    awareness.
> > 
> >    This document is a first attempt at specifying a measurement
> >    methodology to evaluate bufferbloat the way common users are
> >    experiencing it today, using today's most frequently used protocols
> >    and mechanisms to accurately measure the user-experience.  We also
> >    provide a way to express the bufferbloat as a measure of "Round-trips
> >    per minute" (RPM) to have a more intuitive way for the users to
> >    understand the notion of bufferbloat.
> > 
> >                                                                                   
> > 
> > 
> > The IETF Secretariat
> > 
> > 
> > 
> > ----- End forwarded message -----
> > _______________________________________________
> > Bloat mailing list
> > Bloat@lists.bufferbloat.net
> > https://lists.bufferbloat.net/listinfo/bloat

> --- draft-cpaasch-ippm-responsiveness-00.txt	2021-08-15 12:01:01.213813125 +0200
> +++ draft-cpaasch-ippm-responsiveness-00-ea.txt	2021-08-15 15:08:08.013416074 +0200
> @@ -17,7 +17,7 @@
>  
>     Bufferbloat has been a long-standing problem on the Internet with
>     more than a decade of work on standardizing technical solutions,
> -   implementations and testing.  However, to this date, bufferbloat is
> +   implementations, and testing.  However, to this date, bufferbloat is
>     still a very common problem for the end-users.  Everyone "knows" that
>     it is "normal" for a video conference to have problems when somebody
>     else on the same home-network is watching a 4K movie.
> @@ -33,8 +33,8 @@
>     methodology to evaluate bufferbloat the way common users are
>     experiencing it today, using today's most frequently used protocols
>     and mechanisms to accurately measure the user-experience.  We also
> -   provide a way to express the bufferbloat as a measure of "Round-trips
> -   per minute" (RPM) to have a more intuitive way for the users to
> +   provide a way to express bufferbloat as a measure of "Round-trips
> +   per Minute" (RPM) to have a more intuitive way for the users to
>     understand the notion of bufferbloat.
>  
>  Status of This Memo
> @@ -81,14 +81,14 @@
>  Table of Contents
>  
>     1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
> -   2.  Measuring is hard . . . . . . . . . . . . . . . . . . . . . .   3
> +   2.  Measuring is Hard . . . . . . . . . . . . . . . . . . . . . .   3
>     3.  Goals . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
>     4.  Measuring Responsiveness  . . . . . . . . . . . . . . . . . .   5
>       4.1.  Working Conditions  . . . . . . . . . . . . . . . . . . .   5
>         4.1.1.  Parallel vs Sequential Uplink and Downlink  . . . . .   6
> -       4.1.2.  From single-flow to multi-flow  . . . . . . . . . . .   7
> -       4.1.3.  Reaching saturation . . . . . . . . . . . . . . . . .   7
> -       4.1.4.  Final algorithm . . . . . . . . . . . . . . . . . . .   7
> +       4.1.2.  From Single-flow to Multi-flow  . . . . . . . . . . .   7
> +       4.1.3.  Reaching Saturation . . . . . . . . . . . . . . . . .   7
> +       4.1.4.  Final Algorithm . . . . . . . . . . . . . . . . . . .   7
>       4.2.  Measuring Responsiveness  . . . . . . . . . . . . . . . .   8
>         4.2.1.  Aggregating Round-trips per Minute  . . . . . . . . .   9
>         4.2.2.  Statistical Confidence  . . . . . . . . . . . . . . .  10
> @@ -103,8 +103,8 @@
>  
>     For many years, bufferbloat has been known as an unfortunately common
>     issue in todays networks [Bufferbloat].  Solutions like FQ-codel
> -   [RFC8289] or PIE [RFC8033] have been standardized and are to some
> -   extend widely implemented.  Nevertheless, users still suffer from
> +   [RFC8290] or PIE [RFC8033] have been standardized and are to some
> +   extent widely implemented.  Nevertheless, users still suffer from
>     bufferbloat.
>  
>  
> @@ -129,7 +129,7 @@
>     bufferbloat problem.
>  
>     We believe that it is necessary to create a standardized way for
> -   measuring the extend of bufferbloat in a network and express it to
> +   measuring the extent of bufferbloat in a network and express it to
>     the user in a user-friendly way.  This should help existing
>     measurement tools to add a bufferbloat measurement to their set of
>     metrics.  It will also allow to raise the awareness to the problem
> @@ -144,10 +144,10 @@
>     classification for those protocols is very common.  It is thus very
>     important to use those protocols for the measurements to avoid
>     focusing on use-cases that are not actually affecting the end-user.
> -   Finally, we propose to use "round-trips per minute" as a metric to
> -   express the extend of bufferbloat.
> +   Finally, we propose to use "Round-trips per Minute" as a metric to
> +   express the extent of bufferbloat.
>  
> -2.  Measuring is hard
> +2.  Measuring is Hard
>  
>     There are several challenges around measuring bufferbloat accurately
>     on the Internet.  These challenges are due to different factors.
> @@ -155,7 +155,7 @@
>     problem space, and the reproducibility of the measurement.
>  
>     It is well-known that transparent TCP proxies are widely deployed on
> -   port 443 and/or port 80, while less common on other ports.  Thus,
> +   port 443 and/or port 80, while less commonly on other ports.  Thus,
>     choice of the port-number to measure bufferbloat has a significant
>     influence on the result.  Other factors are the protocols being used.
>     TCP and UDP traffic may take a largely different path on the Internet
> @@ -186,17 +186,17 @@
>     measurement.  It seems that it's best to avoid extending the duration
>     of the test beyond what's needed.
>  
> -   The problem space around the bufferbloat is huge.  Traditionally, one
> +   The problem space around bufferbloat is huge.  Traditionally, one
>     thinks of bufferbloat happening on the routers and switches of the
>     Internet.  Thus, simply measuring bufferbloat at the transport layer
>     would be sufficient.  However, the networking stacks of the clients
>     and servers can also experience huge amounts of bufferbloat.  Data
>     sitting in TCP sockets or waiting in the application to be scheduled
>     for sending causes artificial latency, which affects user-experience
> -   the same way the "traditional" bufferbloat does.
> +   the same way "traditional" bufferbloat does.
>  
>     Finally, measuring bufferbloat requires us to fill the buffers of the
> -   bottleneck and when buffer occupancy is at its peak, the latency
> +   bottleneck, and when buffer occupancy is at its peak, the latency
>     measurement needs to be done.  Achieving this in a reliable and
>     reproducible way is not easy.  First, one needs to ensure that
>     buffers are actually full for a sustained period of time to allow for
> @@ -250,15 +250,15 @@
>         bufferbloat.
>  
>     4.  Finally, in order for this measurement to be user-friendly to a
> -       wide audience it is important that such a measurement finishes
> -       within a short time-frame and short being anything below 20
> +       wide audience, it is important that such a measurement finishes
> +       within a short time-frame with short being anything below 20
>         seconds.
>  
>  4.  Measuring Responsiveness
>  
>     The ability to reliably measure the responsiveness under typical
>     working conditions is predicated by the ability to reliably put the
> -   network in a state representative of the said conditions.  Once the
> +   network in a state representative of said conditions.  Once the
>     network has reached the required state, its responsiveness can be
>     measured.  The following explains how the former and the latter are
>     achieved.
> @@ -270,7 +270,7 @@
>     experiencing ingress and egress flows that are similar to those when
>     used by humans in the typical day-to-day pattern.
>  
> -   While any network can be put momentarily into working condition by
> +   While any network can be put momentarily into working conditions by
>     the means of a single HTTP transaction, taking measurements requires
>     maintaining such conditions over sufficient time.  Thus, measuring
>     the network responsiveness in a consistent way depends on our ability
> @@ -286,7 +286,7 @@
>     way to achieve this is by creating multiple large bulk data-transfers
>     in either downstream or upstream direction.  Similar to conventional
>     speed-test applications that also create a varying number of streams
> -   to measure throughput.  Working-conditions does the same.  It also
> +   to measure throughput.  Working conditions does the same.  It also
>     requires a way to detect when the network is in a persistent working
>     condition, called "saturation".  This can be achieved by monitoring
>     the instantaneous goodput over time.  When the goodput stops
> @@ -298,7 +298,7 @@
>     o  Should not waste traffic, since the user may be paying for it
>  
>     o  Should finish within a short time-frame to avoid impacting other
> -      users on the same network and/or experience varying conditions
> +      users on the same network and/or experiencing varying conditions
>  
>  4.1.1.  Parallel vs Sequential Uplink and Downlink
>  
> @@ -308,8 +308,8 @@
>     upstream) or the routing in the ISPs.  Users sending data to an
>     Internet service will fill the bottleneck on the upstream path to the
>     server and thus expose a potential for bufferbloat to happen at this
> -   bottleneck.  On the downlink direction any download from an Internet
> -   service will encounter a bottleneck and thus exposes another
> +   bottleneck.  In the downlink direction any download from an Internet
> +   service will encounter a bottleneck and thus expose another
>     potential for bufferbloat.  Thus, when measuring responsiveness under
>     working conditions it is important to consider both, the upstream and
>     the downstream bufferbloat.  This opens the door to measure both
> @@ -322,13 +322,16 @@
>     seconds of test per direction, while parallel measurement will allow
>     for 20 seconds of testing in both directions.
>  
> -   However, a number caveats come with measuring in parallel: - Half-
> -   duplex links may not expose uplink and downlink bufferbloat: A half-
> -   duplex link may not allow during parallel measurement to saturate
> -   both the uplink and the downlink direction.  Thus, bufferbloat in
> -   either of the directions may not be exposed during parallel
> -   measurement.  - Debuggability of the results becomes more obscure:
> -   During parallel measurement it is impossible to differentiate on
> +   However, a number caveats come with measuring in parallel:
> +
> +   - Half-duplex links may not expose uplink and downlink bufferbloat:
> +     A half-duplex link may not allow to saturate both the uplink
> +     and the downlink direction during parallel measurement.  Thus,
> +     bufferbloat in either of the directions may not be exposed during
> +     parallel measurement.
> +
> +   - Debuggability of the results becomes more obscure:
> +     During parallel measurement it is impossible to differentiate on
>  
>  
>  
> @@ -338,26 +341,26 @@
>  Internet-Draft   Responsiveness under Working Conditions     August 2021
>  
>  
> -   whether the bufferbloat happens in the uplink or the downlink
> -   direction.
> +     whether the bufferbloat happens in the uplink or the downlink
> +     direction.
>  
> -4.1.2.  From single-flow to multi-flow
> +4.1.2.  From Single-flow to Multi-flow
>  
> -   As described in RFC 6349, a single TCP connection may not be
> +   As described in [RFC6349], a single TCP connection may not be
>     sufficient to saturate a path between a client and a server.  On a
>     high-BDP network, traditional TCP window-size constraints of 4MB are
>     often not sufficient to fill the pipe.  Additionally, traditional
> -   loss-based TCP congestion control algorithms aggressively reacts to
> +   loss-based TCP congestion control algorithms aggressively react to
>     packet-loss by reducing the congestion window.  This reaction will
> -   reduce the queuing in the network, and thus "artificially" make the
> -   bufferbloat appear lesser.
> +   reduce the queuing in the network, and thus "artificially" make
> +   bufferbloat appear less of a problem.
>  
> -   The goal of the measurement is to keep the network as busy as
> -   possible in a sustained and persistent way.  Thus, using multiple TCP
> +   The goal is to keep the network as busy as possible in a sustained
> +   and persistent way during the measurement.  Thus, using multiple TCP
>     connections is needed for a sustained bufferbloat by gradually adding
> -   TCP flows until saturation is needed.
> +   TCP flows until saturation is reached.
>  
> -4.1.3.  Reaching saturation
> +4.1.3.  Reaching Saturation
>  
>     It is best to detect when saturation has been reached so that the
>     measurement of responsiveness can start with the confidence that the
> @@ -367,8 +370,8 @@
>     buffers are completely filled.  Thus, this depends highly on the
>     congestion control that is being deployed on the sender-side.
>     Congestion control algorithms like BBR may reach high throughput
> -   without causing bufferbloat. (because the bandwidth-detection portion
> -   of BBR is effectively seeking the bottleneck capacity)
> +   without causing bufferbloat (because the bandwidth-detection portion
> +   of BBR is effectively seeking the bottleneck capacity).
>  
>     It is advised to rather use loss-based congestion controls like Cubic
>     to "reliably" ensure that the buffers are filled.
> @@ -379,7 +382,7 @@
>     packet-loss or ECN-marks signaling a congestion or even a full buffer
>     of the bottleneck link.
>  
> -4.1.4.  Final algorithm
> +4.1.4.  Final Algorithm
>  
>     The following is a proposal for an algorithm to reach saturation of a
>     network by using HTTP/2 upload (POST) or download (GET) requests of
> @@ -404,7 +407,7 @@
>     throughput will remain stable.  In the latter case, this means that
>     saturation has been reached and - more importantly - is stable.
>  
> -   In detail, the steps of the algorithm are the following
> +   In detail, the steps of the algorithm are the following:
>  
>     o  Create 4 load-bearing connections
>  
> @@ -453,7 +456,7 @@
>     the different stages of a separate network transaction as well as
>     measuring on the load-bearing connections themselves.
>  
> -   Two aspects are being measured with this approach :
> +   Two aspects are being measured with this approach:
>  
>     1.  How the network handles new connections and their different
>         stages (DNS-request, TCP-handshake, TLS-handshake, HTTP/2
> @@ -463,19 +466,19 @@
>  
>     2.  How the network and the client/server networking stack handles
>         the latency on the load-bearing connections themselves.  E.g.,
> -       Smart queuing techniques on the bottleneck will allow to keep the
> +       smart queuing techniques on the bottleneck will allow to keep the
>         latency within a reasonable limit in the network and buffer-
> -       reducing techniques like TCP_NOTSENT_LOWAT makes sure the client
> +       reducing techniques like TCP_NOTSENT_LOWAT make sure the client
>         and server TCP-stack is not a source of significant latency.
>  
>     To measure the former, we send a DNS-request, establish a TCP-
>     connection on port 443, establish a TLS-context using TLS1.3 and send
> -   an HTTP2 GET request for an object of a single byte large.  This
> +   an HTTP/2 GET request for an object the size of a single byte.  This
>     measurement will be repeated multiple times for accuracy.  Each of
>     these stages allows to collect a single latency measurement that can
>     then be factored into the responsiveness computation.
>  
> -   To measure the latter, on the load-bearing connections (that uses
> +   To measure the latter, on the load-bearing connections (that use
>     HTTP/2) a GET request is multiplexed.  This GET request is for a
>     1-byte object.  This allows to measure the end-to-end latency on the
>     connections that are using the network at full speed.
> @@ -492,10 +495,10 @@
>     an equal weight to each of these measurements.
>  
>     Finally, the resulting latency needs to be exposed to the users.
> -   Users have been trained to accept metrics that have a notion of "The
> +   Users have been trained to accept metrics that have a notion of "the
>     higher the better".  Latency measuring in units of seconds however is
>     "the lower the better".  Thus, converting the latency measurement to
> -   a frequency allows using the familiar notion of "The higher the
> +   a frequency allows using the familiar notion of "the higher the
>     better".  The term frequency has a very technical connotation.  What
>     we are effectively measuring is the number of round-trips from the
>  
> @@ -513,7 +516,7 @@
>     which is a wink to the "revolutions per minute" that we are used to
>     in cars.
>  
> -   Thus, our unit of measure is "Round-trip per Minute" (RPM) that
> +   Thus, our unit of measure is "Round-trips per Minute" (RPM) that
>     expresses responsiveness under working conditions.
>  
>  4.2.2.  Statistical Confidence
> @@ -527,13 +530,13 @@
>  5.  Protocol Specification
>  
>     By using standard protocols that are most commonly used by end-users,
> -   no new protocol needs to be specified.  However, both client and
> +   no new protocol needs to be specified.  However, both clients and
>     servers need capabilities to execute this kind of measurement as well
> -   as a standard to flow to provision the client with the necessary
> +   as a standard to follow to provision the client with the necessary
>     information.
>  
>     First, the capabilities of both the client and the server: It is
> -   expected that both hosts support HTTP/2 over TLS 1.3.  That the
> +   expected that both hosts support HTTP/2 over TLS 1.3, and that the
>     client is able to send a GET-request and a POST.  The server needs
>     the ability to serve both of these HTTP commands.  Further, the
>     server endpoint is accessible through a hostname that can be resolved
> @@ -546,13 +549,13 @@
>     1.  A config URL/response: This is the configuration file/format used
>         by the client.  It's a simple JSON file format that points the
>         client at the various URLs mentioned below.  All of the fields
> -       are required except "test_endpoint".  If the service-procier can
> +       are required except "test_endpoint".  If the service-provider can
>         pin all of the requests for a test run to a specific node in the
>         service (for a particular run), they can specify that node's name
>         in the "test_endpoint" field.  It's preferred that pinning of
>         some sort is available.  This is to ensure the measurement is
>         against the same paths and not switching hosts during a test run
> -       (ie moving from near POP A to near POP B) Sample content of this
> +       (i.e., moving from near POP A to near POP B).  Sample content of this
>         JSON would be:
>  
>  
> @@ -577,7 +580,7 @@
>  
>     3.  A "large" URL/response: This needs to serve a status code of 200
>         and a body size of at least 8GB.  The body can be bigger, and
> -       will need to grow as network speeds increases over time.  The
> +       will need to grow as network speeds increase over time.  The
>         actual body content is irrelevant.  The client will probably
>         never completely download the object.
>  
> @@ -618,16 +621,19 @@
>  Internet-Draft   Responsiveness under Working Conditions     August 2021
>  
>  
> +   [RFC6349]  ...
> +
>     [RFC8033]  Pan, R., Natarajan, P., Baker, F., and G. White,
>                "Proportional Integral Controller Enhanced (PIE): A
>                Lightweight Control Scheme to Address the Bufferbloat
>                Problem", RFC 8033, DOI 10.17487/RFC8033, February 2017,
>                <https://www.rfc-editor.org/info/rfc8033>.
>  
> -   [RFC8289]  Nichols, K., Jacobson, V., McGregor, A., Ed., and J.
> -              Iyengar, Ed., "Controlled Delay Active Queue Management",
> -              RFC 8289, DOI 10.17487/RFC8289, January 2018,
> -              <https://www.rfc-editor.org/info/rfc8289>.
> +   [RFC8290]  Hoeiland-Joergensen, T., McKenney, P., Taht, D., Ed., and
> +              Gettys, J., "The Flow Queue CoDel Packet Scheduler and
> +	      Active Queue Management Algorithm", RFC 8290,
> +	      DOI 10.17487/RFC8290, January 2018,
> +              <https://www.rfc-editor.org/info/rfc8290>.
>  
>  Authors' Addresses
>  

> [--- draft-cpaasch-ippm-responsiveness-00.txt-]{+++ draft-cpaasch-ippm-responsiveness-00-ea.txt+}	2021-08-15 [-12:01:01.213813125-] {+15:08:08.013416074+} +0200
> @@ -17,7 +17,7 @@
> 
>    Bufferbloat has been a long-standing problem on the Internet with
>    more than a decade of work on standardizing technical solutions,
>    [-implementations-]
>    {+implementations,+} and testing.  However, to this date, bufferbloat is
>    still a very common problem for the end-users.  Everyone "knows" that
>    it is "normal" for a video conference to have problems when somebody
>    else on the same home-network is watching a 4K movie.
> @@ -33,8 +33,8 @@
>    methodology to evaluate bufferbloat the way common users are
>    experiencing it today, using today's most frequently used protocols
>    and mechanisms to accurately measure the user-experience.  We also
>    provide a way to express [-the-] bufferbloat as a measure of "Round-trips
>    per [-minute"-] {+Minute"+} (RPM) to have a more intuitive way for the users to
>    understand the notion of bufferbloat.
> 
> Status of This Memo
> @@ -81,14 +81,14 @@
> Table of Contents
> 
>    1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
>    2.  Measuring is [-hard-] {+Hard+} . . . . . . . . . . . . . . . . . . . . . .   3
>    3.  Goals . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
>    4.  Measuring Responsiveness  . . . . . . . . . . . . . . . . . .   5
>      4.1.  Working Conditions  . . . . . . . . . . . . . . . . . . .   5
>        4.1.1.  Parallel vs Sequential Uplink and Downlink  . . . . .   6
>        4.1.2.  From [-single-flow-] {+Single-flow+} to [-multi-flow-] {+Multi-flow+}  . . . . . . . . . . .   7
>        4.1.3.  Reaching [-saturation-] {+Saturation+} . . . . . . . . . . . . . . . . .   7
>        4.1.4.  Final [-algorithm-] {+Algorithm+} . . . . . . . . . . . . . . . . . . .   7
>      4.2.  Measuring Responsiveness  . . . . . . . . . . . . . . . .   8
>        4.2.1.  Aggregating Round-trips per Minute  . . . . . . . . .   9
>        4.2.2.  Statistical Confidence  . . . . . . . . . . . . . . .  10
> @@ -103,8 +103,8 @@
> 
>    For many years, bufferbloat has been known as an unfortunately common
>    issue in todays networks [Bufferbloat].  Solutions like FQ-codel
>    [-[RFC8289]-]
>    {+[RFC8290]+} or PIE [RFC8033] have been standardized and are to some
>    [-extend-]
>    {+extent+} widely implemented.  Nevertheless, users still suffer from
>    bufferbloat.
> 
> 
> @@ -129,7 +129,7 @@
>    bufferbloat problem.
> 
>    We believe that it is necessary to create a standardized way for
>    measuring the [-extend-] {+extent+} of bufferbloat in a network and express it to
>    the user in a user-friendly way.  This should help existing
>    measurement tools to add a bufferbloat measurement to their set of
>    metrics.  It will also allow to raise the awareness to the problem
> @@ -144,10 +144,10 @@
>    classification for those protocols is very common.  It is thus very
>    important to use those protocols for the measurements to avoid
>    focusing on use-cases that are not actually affecting the end-user.
>    Finally, we propose to use [-"round-trips-] {+"Round-trips+} per [-minute"-] {+Minute"+} as a metric to
>    express the [-extend-] {+extent+} of bufferbloat.
> 
> 2.  Measuring is [-hard-] {+Hard+}
> 
>    There are several challenges around measuring bufferbloat accurately
>    on the Internet.  These challenges are due to different factors.
> @@ -155,7 +155,7 @@
>    problem space, and the reproducibility of the measurement.
> 
>    It is well-known that transparent TCP proxies are widely deployed on
>    port 443 and/or port 80, while less [-common-] {+commonly+} on other ports.  Thus,
>    choice of the port-number to measure bufferbloat has a significant
>    influence on the result.  Other factors are the protocols being used.
>    TCP and UDP traffic may take a largely different path on the Internet
> @@ -186,17 +186,17 @@
>    measurement.  It seems that it's best to avoid extending the duration
>    of the test beyond what's needed.
> 
>    The problem space around [-the-] bufferbloat is huge.  Traditionally, one
>    thinks of bufferbloat happening on the routers and switches of the
>    Internet.  Thus, simply measuring bufferbloat at the transport layer
>    would be sufficient.  However, the networking stacks of the clients
>    and servers can also experience huge amounts of bufferbloat.  Data
>    sitting in TCP sockets or waiting in the application to be scheduled
>    for sending causes artificial latency, which affects user-experience
>    the same way [-the-] "traditional" bufferbloat does.
> 
>    Finally, measuring bufferbloat requires us to fill the buffers of the
>    [-bottleneck-]
>    {+bottleneck,+} and when buffer occupancy is at its peak, the latency
>    measurement needs to be done.  Achieving this in a reliable and
>    reproducible way is not easy.  First, one needs to ensure that
>    buffers are actually full for a sustained period of time to allow for
> @@ -250,15 +250,15 @@
>        bufferbloat.
> 
>    4.  Finally, in order for this measurement to be user-friendly to a
>        wide [-audience-] {+audience,+} it is important that such a measurement finishes
>        within a short time-frame [-and-] {+with+} short being anything below 20
>        seconds.
> 
> 4.  Measuring Responsiveness
> 
>    The ability to reliably measure the responsiveness under typical
>    working conditions is predicated by the ability to reliably put the
>    network in a state representative of [-the-] said conditions.  Once the
>    network has reached the required state, its responsiveness can be
>    measured.  The following explains how the former and the latter are
>    achieved.
> @@ -270,7 +270,7 @@
>    experiencing ingress and egress flows that are similar to those when
>    used by humans in the typical day-to-day pattern.
> 
>    While any network can be put momentarily into working [-condition-] {+conditions+} by
>    the means of a single HTTP transaction, taking measurements requires
>    maintaining such conditions over sufficient time.  Thus, measuring
>    the network responsiveness in a consistent way depends on our ability
> @@ -286,7 +286,7 @@
>    way to achieve this is by creating multiple large bulk data-transfers
>    in either downstream or upstream direction.  Similar to conventional
>    speed-test applications that also create a varying number of streams
>    to measure throughput.  [-Working-conditions-]  {+Working conditions+} does the same.  It also
>    requires a way to detect when the network is in a persistent working
>    condition, called "saturation".  This can be achieved by monitoring
>    the instantaneous goodput over time.  When the goodput stops
> @@ -298,7 +298,7 @@
>    o  Should not waste traffic, since the user may be paying for it
> 
>    o  Should finish within a short time-frame to avoid impacting other
>       users on the same network and/or [-experience-] {+experiencing+} varying conditions
> 
> 4.1.1.  Parallel vs Sequential Uplink and Downlink
> 
> @@ -308,8 +308,8 @@
>    upstream) or the routing in the ISPs.  Users sending data to an
>    Internet service will fill the bottleneck on the upstream path to the
>    server and thus expose a potential for bufferbloat to happen at this
>    bottleneck.  [-On-]  {+In+} the downlink direction any download from an Internet
>    service will encounter a bottleneck and thus [-exposes-] {+expose+} another
>    potential for bufferbloat.  Thus, when measuring responsiveness under
>    working conditions it is important to consider both, the upstream and
>    the downstream bufferbloat.  This opens the door to measure both
> @@ -322,13 +322,16 @@
>    seconds of test per direction, while parallel measurement will allow
>    for 20 seconds of testing in both directions.
> 
>    However, a number caveats come with measuring in parallel:
> 
>    - [-Half-
>    duplex-] {+Half-duplex+} links may not expose uplink and downlink bufferbloat:
>      A [-half-
>    duplex-] {+half-duplex+} link may not allow [-during parallel measurement-] to saturate both the uplink
>      and the downlink [-direction.-] {+direction during parallel measurement.+}  Thus,
>      bufferbloat in either of the directions may not be exposed during
>      parallel measurement.
> 
>    - Debuggability of the results becomes more obscure:
>      During parallel measurement it is impossible to differentiate on
> 
> 
> 
> @@ -338,26 +341,26 @@
> Internet-Draft   Responsiveness under Working Conditions     August 2021
> 
> 
>      whether the bufferbloat happens in the uplink or the downlink
>      direction.
> 
> 4.1.2.  From [-single-flow-] {+Single-flow+} to [-multi-flow-] {+Multi-flow+}
> 
>    As described in [-RFC 6349,-] {+[RFC6349],+} a single TCP connection may not be
>    sufficient to saturate a path between a client and a server.  On a
>    high-BDP network, traditional TCP window-size constraints of 4MB are
>    often not sufficient to fill the pipe.  Additionally, traditional
>    loss-based TCP congestion control algorithms aggressively [-reacts-] {+react+} to
>    packet-loss by reducing the congestion window.  This reaction will
>    reduce the queuing in the network, and thus "artificially" make [-the-]
>    bufferbloat appear [-lesser.-] {+less of a problem.+}
> 
>    The goal [-of the measurement-] is to keep the network as busy as possible in a sustained
>    and persistent [-way.-] {+way during the measurement.+}  Thus, using multiple TCP
>    connections is needed for a sustained bufferbloat by gradually adding
>    TCP flows until saturation is [-needed.-] {+reached.+}
> 
> 4.1.3.  Reaching [-saturation-] {+Saturation+}
> 
>    It is best to detect when saturation has been reached so that the
>    measurement of responsiveness can start with the confidence that the
> @@ -367,8 +370,8 @@
>    buffers are completely filled.  Thus, this depends highly on the
>    congestion control that is being deployed on the sender-side.
>    Congestion control algorithms like BBR may reach high throughput
>    without causing [-bufferbloat.-] {+bufferbloat+} (because the bandwidth-detection portion
>    of BBR is effectively seeking the bottleneck [-capacity)-] {+capacity).+}
> 
>    It is advised to rather use loss-based congestion controls like Cubic
>    to "reliably" ensure that the buffers are filled.
> @@ -379,7 +382,7 @@
>    packet-loss or ECN-marks signaling a congestion or even a full buffer
>    of the bottleneck link.
> 
> 4.1.4.  Final [-algorithm-] {+Algorithm+}
> 
>    The following is a proposal for an algorithm to reach saturation of a
>    network by using HTTP/2 upload (POST) or download (GET) requests of
> @@ -404,7 +407,7 @@
>    throughput will remain stable.  In the latter case, this means that
>    saturation has been reached and - more importantly - is stable.
> 
>    In detail, the steps of the algorithm are the [-following-] {+following:+}
> 
>    o  Create 4 load-bearing connections
> 
> @@ -453,7 +456,7 @@
>    the different stages of a separate network transaction as well as
>    measuring on the load-bearing connections themselves.
> 
>    Two aspects are being measured with this [-approach :-] {+approach:+}
> 
>    1.  How the network handles new connections and their different
>        stages (DNS-request, TCP-handshake, TLS-handshake, HTTP/2
> @@ -463,19 +466,19 @@
> 
>    2.  How the network and the client/server networking stack handles
>        the latency on the load-bearing connections themselves.  E.g.,
>        [-Smart-]
>        {+smart+} queuing techniques on the bottleneck will allow to keep the
>        latency within a reasonable limit in the network and buffer-
>        reducing techniques like TCP_NOTSENT_LOWAT [-makes-] {+make+} sure the client
>        and server TCP-stack is not a source of significant latency.
> 
>    To measure the former, we send a DNS-request, establish a TCP-
>    connection on port 443, establish a TLS-context using TLS1.3 and send
>    an [-HTTP2-] {+HTTP/2+} GET request for an object {+the size+} of a single [-byte large.-] {+byte.+}  This
>    measurement will be repeated multiple times for accuracy.  Each of
>    these stages allows to collect a single latency measurement that can
>    then be factored into the responsiveness computation.
> 
>    To measure the latter, on the load-bearing connections (that [-uses-] {+use+}
>    HTTP/2) a GET request is multiplexed.  This GET request is for a
>    1-byte object.  This allows to measure the end-to-end latency on the
>    connections that are using the network at full speed.
> @@ -492,10 +495,10 @@
>    an equal weight to each of these measurements.
> 
>    Finally, the resulting latency needs to be exposed to the users.
>    Users have been trained to accept metrics that have a notion of [-"The-] {+"the+}
>    higher the better".  Latency measuring in units of seconds however is
>    "the lower the better".  Thus, converting the latency measurement to
>    a frequency allows using the familiar notion of [-"The-] {+"the+} higher the
>    better".  The term frequency has a very technical connotation.  What
>    we are effectively measuring is the number of round-trips from the
> 
> @@ -513,7 +516,7 @@
>    which is a wink to the "revolutions per minute" that we are used to
>    in cars.
> 
>    Thus, our unit of measure is [-"Round-trip-] {+"Round-trips+} per Minute" (RPM) that
>    expresses responsiveness under working conditions.
> 
> 4.2.2.  Statistical Confidence
> @@ -527,13 +530,13 @@
> 5.  Protocol Specification
> 
>    By using standard protocols that are most commonly used by end-users,
>    no new protocol needs to be specified.  However, both [-client-] {+clients+} and
>    servers need capabilities to execute this kind of measurement as well
>    as a standard to [-flow-] {+follow+} to provision the client with the necessary
>    information.
> 
>    First, the capabilities of both the client and the server: It is
>    expected that both hosts support HTTP/2 over TLS [-1.3.  That-] {+1.3, and that+} the
>    client is able to send a GET-request and a POST.  The server needs
>    the ability to serve both of these HTTP commands.  Further, the
>    server endpoint is accessible through a hostname that can be resolved
> @@ -546,13 +549,13 @@
>    1.  A config URL/response: This is the configuration file/format used
>        by the client.  It's a simple JSON file format that points the
>        client at the various URLs mentioned below.  All of the fields
>        are required except "test_endpoint".  If the [-service-procier-] {+service-provider+} can
>        pin all of the requests for a test run to a specific node in the
>        service (for a particular run), they can specify that node's name
>        in the "test_endpoint" field.  It's preferred that pinning of
>        some sort is available.  This is to ensure the measurement is
>        against the same paths and not switching hosts during a test run
>        [-(ie-]
>        {+(i.e.,+} moving from near POP A to near POP [-B)-] {+B).+}  Sample content of this
>        JSON would be:
> 
> 
> @@ -577,7 +580,7 @@
> 
>    3.  A "large" URL/response: This needs to serve a status code of 200
>        and a body size of at least 8GB.  The body can be bigger, and
>        will need to grow as network speeds [-increases-] {+increase+} over time.  The
>        actual body content is irrelevant.  The client will probably
>        never completely download the object.
> 
> @@ -618,16 +621,19 @@
> Internet-Draft   Responsiveness under Working Conditions     August 2021
> 
> 
>    {+[RFC6349]  ...+}
> 
>    [RFC8033]  Pan, R., Natarajan, P., Baker, F., and G. White,
>               "Proportional Integral Controller Enhanced (PIE): A
>               Lightweight Control Scheme to Address the Bufferbloat
>               Problem", RFC 8033, DOI 10.17487/RFC8033, February 2017,
>               <https://www.rfc-editor.org/info/rfc8033>.
> 
>    [-[RFC8289]  Nichols, K., Jacobson, V., McGregor, A.,-]
> 
>    {+[RFC8290]  Hoeiland-Joergensen, T., McKenney, P., Taht, D.,+} Ed., and [-J.
>               Iyengar, Ed., "Controlled Delay-]
>               {+Gettys, J., "The Flow Queue CoDel Packet Scheduler and+}
> 	      Active Queue [-Management",-] {+Management Algorithm",+} RFC [-8289,-] {+8290,+}
> 	      DOI [-10.17487/RFC8289,-] {+10.17487/RFC8290,+} January 2018,
>               [-<https://www.rfc-editor.org/info/rfc8289>.-]
>               {+<https://www.rfc-editor.org/info/rfc8290>.+}
> 
> Authors' Addresses
> 



From nobody Wed Aug 18 21:16:41 2021
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From: "qinfengwei" <qinfengwei@chinamobile.com>
To: "'Martin Duke'" <martin.h.duke@gmail.com>, "'IETF IPPM WG'" <ippm@ietf.org>
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Hi Martin and WG,

         We found RFC8321 is very useful and applied in our network =
including the transport network and data center.

         Our experience shows RFC8321 is mature.

         I would prefer the option 1, and elevate RFC 8321/8889 to PS.

=20

=20

=20

Thanks,

Fengwei Qin

=20

=E5=8F=91=E4=BB=B6=E4=BA=BA: ippm [mailto:ippm-bounces@ietf.org] =
=E4=BB=A3=E8=A1=A8 Martin Duke
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2021=E5=B9=B48=E6=9C=8813=E6=97=A5 =
02:26
=E6=94=B6=E4=BB=B6=E4=BA=BA: IETF IPPM WG
=E4=B8=BB=E9=A2=98: [ippm] RFC 8321 and 8889

=20

Hello IPPM,

=20

(with AD hat on)

=20

The IESG is currently considering

https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-08

which is the implementation of RFC 8321 =
<https://www.rfc-editor.org/rfc/rfc8321.html>  and 8889 =
<https://www.rfc-editor.org/rfc/rfc8889.html>  techniques in an IPv6 =
framework. IIUC, this is very much how things are "supposed to work" -- =
measurement definitions and methodology are done by IPPM, and the =
protocol-specific instantiations are in the respective working groups.

=20

However, there are complications in that 8321 and 8889 are Experimental =
RFCs, and the ipv6-alt-mark draft is a Proposed Standard. This has =
resulted in text from 8321/8889 going into ipv6-alt-mark so that it can =
be elevated to PS. I'm told that, if the status quo holds, other drafts =
will reference ipv6-alt-mark to avoid a downref. This seems suboptimal.

=20

I would prefer that we take one of the two following actions:

1) If the WG has consensus that we are comfortable that there is enough =
experience with 8321 and/or 8889 to elevate them to PS, I can initiate a =
document action to change their status.

=20

2) If there is no such consensus, ipv6-alt-mark should be Experimental.

=20

In either case, the draft can probably lose some of the duplicate text.

=20

Logically, there is a third option -- that the bits of the RFCs copied =
in the draft are mature enough to be a standard, but that the others =
aren't. Though I'm not an expert, I doubt this is the case. But if =
people believe it to be true, we'll have to come up with new options.

=20

I would be grateful for the working group's thoughts about these =
documents and the ideas therein. Is it reasonable for people to read and =
reflect on this by 26 August (2 weeks from today?)

=20

Thanks,

Martin


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<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body lang=3DZH-CN link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Hi Martin and WG,<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 We found RFC8321 is =
very useful and applied in our network including the transport network =
and data center.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Our experience shows =
RFC8321 is mature.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 I would prefer the =
option 1, and elevate RFC 8321/8889 to PS.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><div><p class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>Thanks,<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>Fengwei Qin<o:p></o:p></span></p></div><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><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=3DMsoNormal><b><span =
style=3D'font-size:10.0pt'>=E5=8F=91=E4=BB=B6=E4=BA=BA<span =
lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt'> ippm [mailto:ippm-bounces@ietf.org] =
</span><b><span style=3D'font-size:10.0pt'>=E4=BB=A3=E8=A1=A8 =
</span></b><span lang=3DEN-US style=3D'font-size:10.0pt'>Martin =
Duke<br></span><b><span =
style=3D'font-size:10.0pt'>=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4<span =
lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt'> 2021</span><span =
style=3D'font-size:10.0pt'>=E5=B9=B4<span =
lang=3DEN-US>8</span>=E6=9C=88<span lang=3DEN-US>13</span>=E6=97=A5<span =
lang=3DEN-US> 02:26<br></span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> IETF IPPM =
WG<br></span><b>=E4=B8=BB=E9=A2=98<span lang=3DEN-US>:</span></b><span =
lang=3DEN-US> [ippm] RFC 8321 and =
8889<o:p></o:p></span></span></p></div></div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><div><div><p =
class=3DMsoNormal><span lang=3DEN-US>Hello =
IPPM,<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div><div><p =
class=3DMsoNormal><span lang=3DEN-US>(with AD hat =
on)<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div><div><p =
class=3DMsoNormal><span lang=3DEN-US>The IESG is currently =
considering<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
lang=3DEN-US><a =
href=3D"https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-ma=
rk-08">https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mar=
k-08</a><o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
lang=3DEN-US>which is the implementation of RFC <a =
href=3D"https://www.rfc-editor.org/rfc/rfc8321.html">8321</a> and <a =
href=3D"https://www.rfc-editor.org/rfc/rfc8889.html">8889</a> techniques =
in an IPv6 framework. IIUC, this is very much how things are =
&quot;supposed to work&quot; -- measurement definitions and methodology =
are done by IPPM, and the protocol-specific instantiations are in the =
respective working groups.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div><div><p =
class=3DMsoNormal><span lang=3DEN-US>However, there are complications in =
that 8321 and 8889 are Experimental RFCs, and the ipv6-alt-mark draft is =
a Proposed Standard. This has resulted in text from 8321/8889 going into =
ipv6-alt-mark so that it can be elevated to PS. I'm told that, if the =
status quo holds, other drafts will reference ipv6-alt-mark to avoid a =
downref. This seems suboptimal.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div><div><p =
class=3DMsoNormal><span lang=3DEN-US>I would prefer that <b>we take one =
of the two following actions</b>:<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span lang=3DEN-US>1) If the WG has consensus that we =
are comfortable that there is enough experience with 8321 and/or 8889 to =
elevate them to PS, I can initiate a document action to change their =
status.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div><div><p =
class=3DMsoNormal><span lang=3DEN-US>2) If there is no such consensus, =
ipv6-alt-mark should be Experimental.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div><div><p =
class=3DMsoNormal><span lang=3DEN-US>In either case, the draft can =
probably lose some of the duplicate =
text.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div><div><p =
class=3DMsoNormal><span lang=3DEN-US>Logically, there is a third option =
-- that the bits of the RFCs copied in the draft are mature enough to be =
a standard, but that the others aren't. Though I'm not an expert, I =
doubt this is the case. But if people believe it to be true, we'll have =
to come up with new options.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div><div><p =
class=3DMsoNormal><span lang=3DEN-US>I would be grateful for the working =
group's thoughts about these documents and the ideas therein. Is it =
reasonable for people to read and reflect on this by 26 August (2 weeks =
from today?)<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div><div><p =
class=3DMsoNormal><span =
lang=3DEN-US>Thanks,<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
lang=3DEN-US>Martin<o:p></o:p></span></p></div></div></div></body></html>
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From nobody Thu Aug 19 00:17:49 2021
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Date: Thu, 19 Aug 2021 09:17:34 +0200
From: Erik Auerswald <auerswal@unix-ag.uni-kl.de>
To: Christoph Paasch <cpaasch@apple.com>
Cc: bloat@lists.bufferbloat.net, draft-cpaasch-ippm-responsiveness@ietf.org, ippm@ietf.org
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Author: Erik Auerswald <auerswal@unix-ag.uni-kl.de>
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Subject: Re: [ippm] [Bloat] Fwd: New Version Notification for draft-cpaasch-ippm-responsiveness-00.txt
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Hello Christoph,

On Wed, Aug 18, 2021 at 03:01:42PM -0700, Christoph Paasch wrote:
> On 08/15/21 - 15:39, Erik Auerswald wrote:
> > [...]
> > I do not think RPM can replace all other metrics.  This is, in a way,
> > mentioned in the introduction, where it is suggested to add RPM to
> > existing measurement platforms.  As such I just want to point this out
> > more explicitely, but do not intend to diminish the RPM idea by this.
> > In short, I'd say it's complicated.
> 
> Yes, I fully agree that RPM is not the only metric. It is one among
> many.  If there is a sentiment in our document that sounds like "RPM
> is the only that matters", please let me know where so we can reword
> the text.

Regarding just this, in section 3 (Goals), item 3 (User-friendliness),
the I-D states that '[u]sers commonly look for a single "score" of their
performance.'  This can lead to the impression that RPM is intended to
provide this single score.

I do think that RPM seems more generally useful than either idle latency
or maximum bandwidth, but for a more technically minded audience, all
three provide useful information to get an impression of the usefulness
of a network for different applications.

Thanks,
Erik
-- 
Thinking doesn't guarantee that we won't make mistakes. But not thinking
guarantees that we will.
                        -- Leslie Lamport


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From: Rakesh Gandhi <rgandhi.ietf@gmail.com>
Date: Thu, 19 Aug 2021 08:23:09 -0400
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To: Martin Duke <martin.h.duke@gmail.com>
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Subject: Re: [ippm] RFC 8321 and 8889
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--000000000000d0499e05c9e89dfc
Content-Type: text/plain; charset="UTF-8"

Hi WG,
The alternate marking method has also been by
draft-gandhi-ippm-simple-direct-loss
as well as draft-gandhi-mpls-ioam. I support elevating to PS.

Thanks,
Rakesh


On Thu, Aug 12, 2021 at 2:26 PM Martin Duke <martin.h.duke@gmail.com> wrote:

> Hello IPPM,
>
> (with AD hat on)
>
> The IESG is currently considering
> https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-08
> which is the implementation of RFC 8321
> <https://www.rfc-editor.org/rfc/rfc8321.html> and 8889
> <https://www.rfc-editor.org/rfc/rfc8889.html> techniques in an IPv6
> framework. IIUC, this is very much how things are "supposed to work" --
> measurement definitions and methodology are done by IPPM, and the
> protocol-specific instantiations are in the respective working groups.
>
> However, there are complications in that 8321 and 8889 are Experimental
> RFCs, and the ipv6-alt-mark draft is a Proposed Standard. This has resulted
> in text from 8321/8889 going into ipv6-alt-mark so that it can be elevated
> to PS. I'm told that, if the status quo holds, other drafts will reference
> ipv6-alt-mark to avoid a downref. This seems suboptimal.
>
> I would prefer that *we take one of the two following actions*:
> 1) If the WG has consensus that we are comfortable that there is enough
> experience with 8321 and/or 8889 to elevate them to PS, I can initiate a
> document action to change their status.
>
> 2) If there is no such consensus, ipv6-alt-mark should be Experimental.
>
> In either case, the draft can probably lose some of the duplicate text.
>
> Logically, there is a third option -- that the bits of the RFCs copied in
> the draft are mature enough to be a standard, but that the others aren't.
> Though I'm not an expert, I doubt this is the case. But if people believe
> it to be true, we'll have to come up with new options.
>
> I would be grateful for the working group's thoughts about these documents
> and the ideas therein. Is it reasonable for people to read and reflect on
> this by 26 August (2 weeks from today?)
>
> Thanks,
> Martin
> _______________________________________________
> ippm mailing list
> ippm@ietf.org
> https://www.ietf.org/mailman/listinfo/ippm
>

--000000000000d0499e05c9e89dfc
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Hi WG,</div><div>The alternate marking method has als=
o been by <span class=3D"gmail-h1">draft-gandhi-ippm-simple-direct-loss as =
well as draft-gandhi-mpls-ioam. I support elevating to PS.</span></div><div=
><span class=3D"gmail-h1"><br></span></div><div><span class=3D"gmail-h1">Th=
anks,</span></div><div><span class=3D"gmail-h1">Rakesh</span></div><div><sp=
an class=3D"gmail-h1"><br></span></div></div><br><div class=3D"gmail_quote"=
><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Aug 12, 2021 at 2:26 PM Mart=
in Duke &lt;<a href=3D"mailto:martin.h.duke@gmail.com">martin.h.duke@gmail.=
com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"marg=
in:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1e=
x"><div dir=3D"ltr"><div>Hello IPPM,</div><div><br></div><div>(with AD hat =
on)<br></div><div><br></div><div>The IESG is currently considering</div><di=
v><a href=3D"https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt=
-mark-08" target=3D"_blank">https://datatracker.ietf.org/doc/html/draft-iet=
f-6man-ipv6-alt-mark-08</a></div><div></div><div>which is the implementatio=
n of RFC <a href=3D"https://www.rfc-editor.org/rfc/rfc8321.html" target=3D"=
_blank">8321</a> and <a href=3D"https://www.rfc-editor.org/rfc/rfc8889.html=
" target=3D"_blank">8889</a> techniques in an IPv6 framework. IIUC, this is=
 very much how things are &quot;supposed to work&quot; -- measurement defin=
itions and methodology are done by IPPM, and the protocol-specific instanti=
ations are in the respective working groups.</div><div><br></div><div>Howev=
er, there are complications in that 8321 and 8889 are Experimental RFCs, an=
d the ipv6-alt-mark draft is a Proposed Standard. This has resulted in text=
 from 8321/8889 going into ipv6-alt-mark so that it can be elevated to PS. =
I&#39;m told that, if the status quo holds, other drafts will reference ipv=
6-alt-mark to avoid a downref. This seems suboptimal.</div><div><br></div><=
div>I would prefer that <b>we take one of the two following actions</b>:</d=
iv><div>1) If the WG has consensus that we are comfortable that there is en=
ough experience with 8321 and/or 8889 to elevate them to PS, I can initiate=
 a document action to change their status.</div><div><br></div><div>2) If t=
here is no such consensus, ipv6-alt-mark should be Experimental.</div><div>=
<br></div><div>In either case, the draft can probably lose some of the dupl=
icate text.</div><div><br></div><div>Logically, there is a third option -- =
that the bits of the RFCs copied in the draft are mature enough to be a sta=
ndard, but that the others aren&#39;t. Though I&#39;m not an expert, I doub=
t this is the case. But if people believe it to be true, we&#39;ll have to =
come up with new options.</div><div><br></div><div>I would be grateful for =
the working group&#39;s thoughts about these documents and the ideas therei=
n. Is it reasonable for people to read and reflect on this by 26 August (2 =
weeks from today?)<br></div><div><br></div><div>Thanks,</div><div>Martin<br=
></div></div>
_______________________________________________<br>
ippm mailing list<br>
<a href=3D"mailto:ippm@ietf.org" target=3D"_blank">ippm@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/ippm" rel=3D"noreferrer" t=
arget=3D"_blank">https://www.ietf.org/mailman/listinfo/ippm</a><br>
</blockquote></div>

--000000000000d0499e05c9e89dfc--


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Date: Thu, 19 Aug 2021 08:48:52 -0700
From: Christoph Paasch <cpaasch@apple.com>
To: Erik Auerswald <auerswal@unix-ag.uni-kl.de>
Cc: bloat@lists.bufferbloat.net, draft-cpaasch-ippm-responsiveness@ietf.org, ippm@ietf.org
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Hello Erik,

On 08/19/21 - 09:17, Erik Auerswald wrote:
> Hello Christoph,
> 
> On Wed, Aug 18, 2021 at 03:01:42PM -0700, Christoph Paasch wrote:
> > On 08/15/21 - 15:39, Erik Auerswald wrote:
> > > [...]
> > > I do not think RPM can replace all other metrics.  This is, in a way,
> > > mentioned in the introduction, where it is suggested to add RPM to
> > > existing measurement platforms.  As such I just want to point this out
> > > more explicitely, but do not intend to diminish the RPM idea by this.
> > > In short, I'd say it's complicated.
> > 
> > Yes, I fully agree that RPM is not the only metric. It is one among
> > many.  If there is a sentiment in our document that sounds like "RPM
> > is the only that matters", please let me know where so we can reword
> > the text.
> 
> Regarding just this, in section 3 (Goals), item 3 (User-friendliness),
> the I-D states that '[u]sers commonly look for a single "score" of their
> performance.'  This can lead to the impression that RPM is intended to
> provide this single score.

yes we can rephrase this: https://github.com/network-quality/draft-cpaasch-ippm-responsiveness/issues/11

> I do think that RPM seems more generally useful than either idle latency
> or maximum bandwidth, but for a more technically minded audience, all
> three provide useful information to get an impression of the usefulness
> of a network for different applications.

I agree. Just measuring RPM is not useful. As one can have excellent RPM but
still have an Internet connection that is barely usable.

However, I still believe that a single score for the user would be great
(that score would not be RPM though). This score should group together a
large list of network-properties (RPM, goodput, idle latency, protocol
conformance,...) and express a value of utility to the user that express how
its user-experience is affected. It would make it much easier for non-technical
users to compare the quality of their Internet without just focusing on a
single throughput-metric.

But that is a different topic than RPM ;-)



Cheers,
Christoph


> 
> Thanks,
> Erik
> -- 
> Thinking doesn't guarantee that we won't make mistakes. But not thinking
> guarantees that we will.
>                         -- Leslie Lamport


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From: Tianran Zhou <zhoutianran@huawei.com>
To: Martin Duke <martin.h.duke@gmail.com>, IETF IPPM WG <ippm@ietf.org>
Thread-Topic: [ippm] RFC 8321 and 8889
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Subject: Re: [ippm] RFC 8321 and 8889
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Thread-Topic: [ippm] RFC 8321 and 8889
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Subject: Re: [ippm] RFC 8321 and 8889
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Subject: [ippm] New Liaison Statement, "Reply to ITU-T SG12 LS - Harmonization of IP Capacity and Latency"
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Title: Reply to ITU-T SG12 LS - Harmonization of IP Capacity and Latency
Submission Date: 2021-05-21
URL of the IETF Web page: https://datatracker.ietf.org/liaison/1742/

From: Tommy Pauly <tpauly@apple.com>
To: tsbsg12@itu.int 
Cc: Scott Mansfield <Scott.Mansfield@Ericsson.com>,Zaheduzzaman Sarker <Zaheduzzaman.Sarker@ericsson.com>,itu-t-liaison@iab.org <itu-t-liaison@iab.org>,IP Performance Measurement Discussion List <ippm@ietf.org>,Tommy Pauly <tpauly@apple.com>,Martin Duke <martin.h.duke@gmail.com>,Ian Swett <ianswett@google.com>,<tsbsg11@itu.int>,<tsbsg15@itu.int>,<tsbsg9@itu.int>, <david.sinicrope@gmail.com>, <Carmine.Rizzo@etsi.org >
Response Contacts: Tommy Pauly <tpauly@apple.com>, Ian Swett <ianswett@google.com>
Technical Contacts: 
Purpose: In response

Referenced liaison: LS on harmonization of IP Capacity and Latency Parameters: Consent of Draft Rec. Y.1540 on IP packet transfer performance parameters and New Annex A with Lab & Field Evaluation Plans (https://datatracker.ietf.org/liaison/1645/)

Body: The IPPM Working Group in IETF thanks ITU-T SG12 for their liaison describing progress on the Maximum IP-layer Capacity metric and methods in revised Rec. Y.1540. The development of a coordinated specification has proceeded successfully in IETF, with the benefit of the review by new experts contributing at the working group and IESG level. The many lab and field test results you shared have been a great asset, so we made references to your results, as well as the testing conducted during Hackathons at recent IETF meetings.
 
The latest draft is available [0], which we expect to be approved shortly.
 
The next step appears to be development/enhancement of a test protocol to support the measurement method with its feeback measurements and dynamic sender rate control.
 
The IPPM Working Group continues to seek participation by all interested parties, and will keep you informed of our progress on the topic of the Maximum IP-layer Capacity metric and methods.

Regards,

IPPM Chairs
Tommy Pauly (tpauly@apple.com)
Ian Swett (ianswett@google.com)

[0] https://datatracker.ietf.org/doc/html/draft-ietf-ippm-capacity-metric-method-12
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Subject: Re: [ippm] RFC 8321 and 8889
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Thanks all,

I'm hearing strong consensus that 8321 should be a PS and somewhat weaker
support for 8889, but no dissents.

If anyone has serious concerns, this would be a good time to say so.

On Fri, Aug 20, 2021 at 3:02 AM Ran Pang(=E8=81=94=E9=80=9A=E9=9B=86=E5=9B=
=A2=E4=B8=AD=E5=9B=BD=E8=81=94=E9=80=9A=E7=A0=94=E7=A9=B6=E9=99=A2-=E6=9C=
=AC=E9=83=A8) <
pangran@chinaunicom.cn> wrote:

> Hi Martin and WG,
>
> The alt-mk described in RFC8321/8889 has been deployed in some of our
> networks.
>
> It works well.
>
> So I would like the WG consider elevate them to proposed standard.
>
>
> Best regards,
> Pang Ran.
>
>
> *From:* Martin Duke <martin.h.duke@gmail.com>
> *Date:* 2021-08-13 02:26
> *To:* IETF IPPM WG <ippm@ietf.org>
> *Subject:* [ippm] RFC 8321 and 8889
> Hello IPPM,
>
> (with AD hat on)
>
> The IESG is currently considering
> https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-08
> which is the implementation of RFC 8321
> <https://www.rfc-editor.org/rfc/rfc8321.html> and 8889
> <https://www.rfc-editor.org/rfc/rfc8889.html> techniques in an IPv6
> framework. IIUC, this is very much how things are "supposed to work" --
> measurement definitions and methodology are done by IPPM, and the
> protocol-specific instantiations are in the respective working groups.
>
> However, there are complications in that 8321 and 8889 are Experimental
> RFCs, and the ipv6-alt-mark draft is a Proposed Standard. This has result=
ed
> in text from 8321/8889 going into ipv6-alt-mark so that it can be elevate=
d
> to PS. I'm told that, if the status quo holds, other drafts will referenc=
e
> ipv6-alt-mark to avoid a downref. This seems suboptimal.
>
> I would prefer that *we take one of the two following actions*:
> 1) If the WG has consensus that we are comfortable that there is enough
> experience with 8321 and/or 8889 to elevate them to PS, I can initiate a
> document action to change their status.
>
> 2) If there is no such consensus, ipv6-alt-mark should be Experimental.
>
> In either case, the draft can probably lose some of the duplicate text.
>
> Logically, there is a third option -- that the bits of the RFCs copied in
> the draft are mature enough to be a standard, but that the others aren't.
> Though I'm not an expert, I doubt this is the case. But if people believe
> it to be true, we'll have to come up with new options.
>
> I would be grateful for the working group's thoughts about these document=
s
> and the ideas therein. Is it reasonable for people to read and reflect on
> this by 26 August (2 weeks from today?)
>
> Thanks,
> Martin
>
> =E5=A6=82=E6=9E=9C=E6=82=A8=E9=94=99=E8=AF=AF=E6=8E=A5=E6=94=B6=E4=BA=86=
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<div dir=3D"ltr"><div>Thanks all,</div><div><br></div><div>I&#39;m hearing =
strong consensus that 8321 should be a PS and somewhat weaker support for 8=
889, but no dissents.</div><div><br></div><div>If anyone has serious concer=
ns, this would be a good time to say so.<br></div></div><br><div class=3D"g=
mail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Fri, Aug 20, 2021 at 3=
:02 AM Ran Pang(=E8=81=94=E9=80=9A=E9=9B=86=E5=9B=A2=E4=B8=AD=E5=9B=BD=E8=
=81=94=E9=80=9A=E7=A0=94=E7=A9=B6=E9=99=A2-=E6=9C=AC=E9=83=A8) &lt;<a href=
=3D"mailto:pangran@chinaunicom.cn">pangran@chinaunicom.cn</a>&gt; wrote:<br=
></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;=
border-left:1px solid rgb(204,204,204);padding-left:1ex">




<div>
<div><span style=3D"text-decoration-style:initial;text-decoration-color:ini=
tial"><span></span>Hi Martin and WG,</span></div>
<div><span style=3D"text-decoration-style:initial;text-decoration-color:ini=
tial"><br>
</span></div>
<div>
<p class=3D"MsoNormal" style=3D"margin:0cm 0cm 0.0001pt">The alt-mk describ=
ed in RFC8321/8889 has been deployed in some of our networks.</p>
<p class=3D"MsoNormal" style=3D"margin:0cm 0cm 0.0001pt">It works well.</p>
<p class=3D"MsoNormal" style=3D"margin:0cm 0cm 0.0001pt">So I would like th=
e WG consider elevate them to proposed standard.</p>
<p class=3D"MsoNormal" style=3D"margin:0cm 0cm 0.0001pt"><span style=3D"tex=
t-decoration-style:initial;text-decoration-color:initial"><br>
</span></p>
</div>
<div>
<div><span style=3D"text-decoration-style:initial;text-decoration-color:ini=
tial">Best regards,</span></div>
<div><span style=3D"text-decoration-style:initial;text-decoration-color:ini=
tial">Pang Ran.</span></div>
</div>
<blockquote style=3D"margin-top:0px;margin-bottom:0px;margin-left:0.5em;mar=
gin-right:inherit">
<div>=C2=A0</div>
<div style=3D"border-color:rgb(181,196,223) currentcolor currentcolor;borde=
r-style:solid none none;border-width:1pt medium medium;padding:3pt 0cm 0cm"=
>
<div style=3D"padding:8px;font-size:12px;font-family:tahoma;color:rgb(0,0,0=
);background:rgb(239,239,239) none repeat scroll 0% 0%">
<div><b>From:</b>=C2=A0<a href=3D"mailto:martin.h.duke@gmail.com" target=3D=
"_blank">Martin Duke</a></div>
<div><b>Date:</b>=C2=A02021-08-13=C2=A002:26</div>
<div><b>To:</b>=C2=A0<a href=3D"mailto:ippm@ietf.org" target=3D"_blank">IET=
F IPPM WG</a></div>
<div><b>Subject:</b>=C2=A0[ippm] RFC 8321 and 8889</div>
</div>
</div>
<div>
<div>
<div dir=3D"ltr">
<div>Hello IPPM,</div>
<div><br>
</div>
<div>(with AD hat on)<br>
</div>
<div><br>
</div>
<div>The IESG is currently considering</div>
<div><a href=3D"https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-=
alt-mark-08" target=3D"_blank">https://datatracker.ietf.org/doc/html/draft-=
ietf-6man-ipv6-alt-mark-08</a></div>
<div></div>
<div>which is the implementation of RFC <a href=3D"https://www.rfc-editor.o=
rg/rfc/rfc8321.html" target=3D"_blank">
8321</a> and <a href=3D"https://www.rfc-editor.org/rfc/rfc8889.html" target=
=3D"_blank">8889</a> techniques in an IPv6 framework. IIUC, this is very mu=
ch how things are &quot;supposed to work&quot; -- measurement definitions a=
nd methodology are done by IPPM, and the protocol-specific instantiations
 are in the respective working groups.</div>
<div><br>
</div>
<div>However, there are complications in that 8321 and 8889 are Experimenta=
l RFCs, and the ipv6-alt-mark draft is a Proposed Standard. This has result=
ed in text from 8321/8889 going into ipv6-alt-mark so that it can be elevat=
ed to PS. I&#39;m told that, if the
 status quo holds, other drafts will reference ipv6-alt-mark to avoid a dow=
nref. This seems suboptimal.</div>
<div><br>
</div>
<div>I would prefer that <b>we take one of the two following actions</b>:</=
div>
<div>1) If the WG has consensus that we are comfortable that there is enoug=
h experience with 8321 and/or 8889 to elevate them to PS, I can initiate a =
document action to change their status.</div>
<div><br>
</div>
<div>2) If there is no such consensus, ipv6-alt-mark should be Experimental=
.</div>
<div><br>
</div>
<div>In either case, the draft can probably lose some of the duplicate text=
.</div>
<div><br>
</div>
<div>Logically, there is a third option -- that the bits of the RFCs copied=
 in the draft are mature enough to be a standard, but that the others aren&=
#39;t. Though I&#39;m not an expert, I doubt this is the case. But if peopl=
e believe it to be true, we&#39;ll have to come
 up with new options.</div>
<div><br>
</div>
<div>I would be grateful for the working group&#39;s thoughts about these d=
ocuments and the ideas therein. Is it reasonable for people to read and ref=
lect on this by 26 August (2 weeks from today?)<br>
</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Martin<br>
</div>
</div>
</div>
</div>
</blockquote>
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</blockquote></div>

--0000000000003e5d0605ca003233--


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To: Martin Duke <martin.h.duke@gmail.com>, =?utf-8?B?UmFuIFBhbmco6IGU6YCa6ZuG5Zui5Lit5Zu96IGU6YCa56CU56m26ZmiLQ==?= =?utf-8?B?5pys6YOoKQ==?= <pangran@chinaunicom.cn>
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Thread-Topic: [ippm] RFC 8321 and 8889
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Subject: Re: [ippm] RFC 8321 and 8889
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From: Martin Duke <martin.h.duke@gmail.com>
Date: Mon, 23 Aug 2021 12:34:06 -0700
Message-ID: <CAM4esxTd76BDaGDxHzxqM8am+g2bAui7=Q06uGoXkLLq25Ur4Q@mail.gmail.com>
To: "MORTON JR., AL" <acmorton@att.com>
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Subject: Re: [ippm] RFC 8321 and 8889
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Hi Al, this is my impression as well. In a perfect world I would ask the WG
to do a bis draft to inventory what is mature and to deprecate the bits
that haven't seen real deployment. If it turns out that it's all deployed,
then we could do a simpler document action.

Is this work that anyone is interested in taking on?

On Fri, Aug 20, 2021 at 9:41 AM MORTON JR., AL <acmorton@att.com> wrote:

> Hi Martin,
>
>
>
> While I don=E2=80=99t have a serious concern, I=E2=80=99d prefer to eleva=
te the parts of
> 8321 that **were implemented** to PS.  I think I read that some parts
> were not implemented and I look to those who reported on their
> implementations to say what they did.
>
>
>
> This thinning-out of non-implemented capabilities was a feature of
> Standards Track Advancement processes in the past, so it makes sense to
> apply it here as well.  I realize this means a new draft, but the
> processing could be accelerated to match the need.
>
>
>
> If the entire RFC 8321 was implemented, then this point is a non-issue.
>
>
>
> hope this helps,
>
> Al
>
>
>
> *From:* ippm <ippm-bounces@ietf.org> *On Behalf Of *Martin Duke
> *Sent:* Friday, August 20, 2021 12:31 PM
> *To:* Ran Pang(=E8=81=94=E9=80=9A=E9=9B=86=E5=9B=A2=E4=B8=AD=E5=9B=BD=E8=
=81=94=E9=80=9A=E7=A0=94=E7=A9=B6=E9=99=A2-=E6=9C=AC=E9=83=A8) <pangran@chi=
naunicom.cn>
> *Cc:* IETF IPPM WG <ippm@ietf.org>
> *Subject:* Re: [ippm] RFC 8321 and 8889
>
>
>
> Thanks all,
>
>
>
> I'm hearing strong consensus that 8321 should be a PS and somewhat weaker
> support for 8889, but no dissents.
>
>
>
> If anyone has serious concerns, this would be a good time to say so.
>
>
>
> On Fri, Aug 20, 2021 at 3:02 AM Ran Pang(=E8=81=94=E9=80=9A=E9=9B=86=E5=
=9B=A2=E4=B8=AD=E5=9B=BD=E8=81=94=E9=80=9A=E7=A0=94=E7=A9=B6=E9=99=A2-=E6=
=9C=AC=E9=83=A8) <
> pangran@chinaunicom.cn> wrote:
>
> Hi Martin and WG,
>
>
>
> The alt-mk described in RFC8321/8889 has been deployed in some of our
> networks.
>
> It works well.
>
> So I would like the WG consider elevate them to proposed standard.
>
>
>
> Best regards,
>
> Pang Ran.
>
>
>
> *From:* Martin Duke <martin.h.duke@gmail.com>
>
> *Date:* 2021-08-13 02:26
>
> *To:* IETF IPPM WG <ippm@ietf.org>
>
> *Subject:* [ippm] RFC 8321 and 8889
>
> Hello IPPM,
>
>
>
> (with AD hat on)
>
>
>
> The IESG is currently considering
>
> https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-08
> <https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draft-i=
etf-6man-ipv6-alt-mark-08__;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ=
1jJwmHnx-jiXCBYQM6IB$>
>
> which is the implementation of RFC 8321
> <https://urldefense.com/v3/__https:/www.rfc-editor.org/rfc/rfc8321.html__=
;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmHnx-jiXCEt7L0EO$>
> and 8889
> <https://urldefense.com/v3/__https:/www.rfc-editor.org/rfc/rfc8889.html__=
;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmHnx-jiXCD5jrkAO$>
> techniques in an IPv6 framework. IIUC, this is very much how things are
> "supposed to work" -- measurement definitions and methodology are done by
> IPPM, and the protocol-specific instantiations are in the respective
> working groups.
>
>
>
> However, there are complications in that 8321 and 8889 are Experimental
> RFCs, and the ipv6-alt-mark draft is a Proposed Standard. This has result=
ed
> in text from 8321/8889 going into ipv6-alt-mark so that it can be elevate=
d
> to PS. I'm told that, if the status quo holds, other drafts will referenc=
e
> ipv6-alt-mark to avoid a downref. This seems suboptimal.
>
>
>
> I would prefer that *we take one of the two following actions*:
>
> 1) If the WG has consensus that we are comfortable that there is enough
> experience with 8321 and/or 8889 to elevate them to PS, I can initiate a
> document action to change their status.
>
>
>
> 2) If there is no such consensus, ipv6-alt-mark should be Experimental.
>
>
>
> In either case, the draft can probably lose some of the duplicate text.
>
>
>
> Logically, there is a third option -- that the bits of the RFCs copied in
> the draft are mature enough to be a standard, but that the others aren't.
> Though I'm not an expert, I doubt this is the case. But if people believe
> it to be true, we'll have to come up with new options.
>
>
>
> I would be grateful for the working group's thoughts about these document=
s
> and the ideas therein. Is it reasonable for people to read and reflect on
> this by 26 August (2 weeks from today?)
>
>
>
> Thanks,
>
> Martin
>
> =E5=A6=82=E6=9E=9C=E6=82=A8=E9=94=99=E8=AF=AF=E6=8E=A5=E6=94=B6=E4=BA=86=
=E8=AF=A5=E9=82=AE=E4=BB=B6=EF=BC=8C=E8=AF=B7=E9=80=9A=E8=BF=87=E7=94=B5=E5=
=AD=90=E9=82=AE=E4=BB=B6=E7=AB=8B=E5=8D=B3=E9=80=9A=E7=9F=A5=E6=88=91=E4=BB=
=AC=E3=80=82=E8=AF=B7=E5=9B=9E=E5=A4=8D=E9=82=AE=E4=BB=B6=E5=88=B0 hqs-spmc=
@chinaunicom.cn=EF=BC=8C=E5=8D=B3=E5=8F=AF=E4=BB=A5=E9=80=80
> =E8=AE=A2=E6=AD=A4=E9=82=AE=E4=BB=B6=E3=80=82=E6=88=91=E4=BB=AC=E5=B0=86=
=E7=AB=8B=E5=8D=B3=E5=B0=86=E6=82=A8=E7=9A=84=E4=BF=A1=E6=81=AF=E4=BB=8E=E6=
=88=91=E4=BB=AC=E7=9A=84=E5=8F=91=E9=80=81=E7=9B=AE=E5=BD=95=E4=B8=AD=E5=88=
=A0=E9=99=A4=E3=80=82 If you have received this email in error
> please notify us immediately by e-mail. Please reply to
> hqs-spmc@chinaunicom.cn ,you can unsubscribe from this mail. We will
> immediately remove your information from send catalogue of our.
>
>

--00000000000055e4ce05ca3f1acc
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Hi Al, this is my impression as well. In a perfect wo=
rld I would ask the WG to do a bis draft to inventory what is mature and to=
 deprecate the bits that haven&#39;t seen real deployment. If it turns out =
that it&#39;s all deployed, then we could do a simpler document action.<br>=
</div><div><br></div><div>Is this work that anyone is interested in taking =
on?<br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D=
"gmail_attr">On Fri, Aug 20, 2021 at 9:41 AM MORTON JR., AL &lt;<a href=3D"=
mailto:acmorton@att.com">acmorton@att.com</a>&gt; wrote:<br></div><blockquo=
te class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px =
solid rgb(204,204,204);padding-left:1ex">







<div style=3D"overflow-wrap: break-word;" lang=3D"EN-US">
<div class=3D"gmail-m_-3489247091655101519WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
Hi Martin,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
While I don=E2=80=99t have a serious concern, I=E2=80=99d prefer to elevate=
 the parts of 8321 that *<b>were implemented</b>* to PS.<span>=C2=A0
</span>I think I read that some parts were not implemented and I look to th=
ose who reported on their implementations to say what they did.<u></u><u></=
u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
This thinning-out of non-implemented capabilities was a feature of Standard=
s Track Advancement processes in the past, so it makes sense to apply it he=
re as well.<span>=C2=A0
</span>I realize this means a new draft, but the processing could be accele=
rated to match the need.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
If the entire RFC 8321 was implemented, then this point is a non-issue.<u><=
/u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
hope this helps,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
Al<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
<u></u>=C2=A0<u></u></span></p>
<div style=3D"border-color:currentcolor currentcolor currentcolor blue;bord=
er-style:none none none solid;border-width:medium medium medium 1.5pt;paddi=
ng:0in 0in 0in 4pt">
<div>
<div style=3D"border-color:rgb(225,225,225) currentcolor currentcolor;borde=
r-style:solid none none;border-width:1pt medium medium;padding:3pt 0in 0in"=
>
<p class=3D"MsoNormal"><b><span>From:</span></b><span> ippm &lt;<a href=3D"=
mailto:ippm-bounces@ietf.org" target=3D"_blank">ippm-bounces@ietf.org</a>&g=
t;
<b>On Behalf Of </b>Martin Duke<br>
<b>Sent:</b> Friday, August 20, 2021 12:31 PM<br>
<b>To:</b> Ran Pang(</span><span style=3D"font-family:&quot;Microsoft Jheng=
Hei&quot;,sans-serif">=E8=81=94=E9=80=9A=E9=9B=86=E5=9B=A2=E4=B8=AD=E5=9B=
=BD=E8=81=94=E9=80=9A=E7=A0=94=E7=A9=B6=E9=99=A2</span><span>-</span><span =
style=3D"font-family:&quot;MS Gothic&quot;">=E6=9C=AC=E9=83=A8</span><span>=
)
 &lt;<a href=3D"mailto:pangran@chinaunicom.cn" target=3D"_blank">pangran@ch=
inaunicom.cn</a>&gt;<br>
<b>Cc:</b> IETF IPPM WG &lt;<a href=3D"mailto:ippm@ietf.org" target=3D"_bla=
nk">ippm@ietf.org</a>&gt;<br>
<b>Subject:</b> Re: [ippm] RFC 8321 and 8889<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Thanks all,<u></u><u></u>=
</p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">I&#39;m hearing strong co=
nsensus that 8321 should be a PS and somewhat weaker support for 8889, but =
no dissents.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">If anyone has serious con=
cerns, this would be a good time to say so.<u></u><u></u></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>=C2=A0<u></u></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">On Fri, Aug 20, 2021 at 3=
:02 AM Ran Pang(<span style=3D"font-family:&quot;Microsoft JhengHei&quot;,s=
ans-serif">=E8=81=94=E9=80=9A=E9=9B=86=E5=9B=A2=E4=B8=AD=E5=9B=BD=E8=81=94=
=E9=80=9A=E7=A0=94=E7=A9=B6=E9=99=A2</span>-<span style=3D"font-family:&quo=
t;MS Gothic&quot;">=E6=9C=AC=E9=83=A8</span>)
 &lt;<a href=3D"mailto:pangran@chinaunicom.cn" target=3D"_blank">pangran@ch=
inaunicom.cn</a>&gt; wrote:<u></u><u></u></p>
</div>
<blockquote style=3D"border-color:currentcolor currentcolor currentcolor rg=
b(204,204,204);border-style:none none none solid;border-width:medium medium=
 medium 1pt;padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Hi Martin and WG,<u></u><=
u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">The alt-mk described in RFC8321/8889 has been deploy=
ed in some of our networks.<u></u><u></u></p>
<p class=3D"MsoNormal">It works well.<u></u><u></u></p>
<p class=3D"MsoNormal">So I would like the WG consider elevate them to prop=
osed standard.<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Best regards,<u></u><u></=
u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Pang Ran.<u></u><u></u></=
p>
</div>
</div>
<blockquote style=3D"margin-left:6pt;margin-right:inherit">
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">=C2=A0<u></u><u></u></p>
</div>
<div style=3D"border-style:solid none none;border-width:1pt medium medium;p=
adding:3pt 0in 0in;border-color:currentcolor">
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%;background:rgb(239,239,239=
) none repeat scroll 0% 0%">
<b><span style=3D"font-size:9pt;line-height:112%;font-family:&quot;Tahoma&q=
uot;,sans-serif;color:black">From:</span></b><span style=3D"font-size:9pt;l=
ine-height:112%;font-family:&quot;Tahoma&quot;,sans-serif;color:black">=C2=
=A0<a href=3D"mailto:martin.h.duke@gmail.com" target=3D"_blank">Martin
 Duke</a><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%;background:rgb(239,239,239=
) none repeat scroll 0% 0%"><b><span style=3D"font-size:9pt;line-height:112=
%;font-family:&quot;Tahoma&quot;,sans-serif;color:black">Date:</span></b><s=
pan style=3D"font-size:9pt;line-height:112%;font-family:&quot;Tahoma&quot;,=
sans-serif;color:black">=C2=A02021-08-13=C2=A002:26<u></u><u></u></span></p=
>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%;background:rgb(239,239,239=
) none repeat scroll 0% 0%"><b><span style=3D"font-size:9pt;line-height:112=
%;font-family:&quot;Tahoma&quot;,sans-serif;color:black">To:</span></b><spa=
n style=3D"font-size:9pt;line-height:112%;font-family:&quot;Tahoma&quot;,sa=
ns-serif;color:black">=C2=A0<a href=3D"mailto:ippm@ietf.org" target=3D"_bla=
nk">IETF
 IPPM WG</a><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%;background:rgb(239,239,239=
) none repeat scroll 0% 0%"><b><span style=3D"font-size:9pt;line-height:112=
%;font-family:&quot;Tahoma&quot;,sans-serif;color:black">Subject:</span></b=
><span style=3D"font-size:9pt;line-height:112%;font-family:&quot;Tahoma&quo=
t;,sans-serif;color:black">=C2=A0[ippm]
 RFC 8321 and 8889<u></u><u></u></span></p>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Hello IPPM,<u></u><u></u>=
</p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">(with AD hat on)<u></u><u=
></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">The IESG is currently con=
sidering<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><a href=3D"https://urldef=
ense.com/v3/__https:/datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt=
-mark-08__;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmHnx-jiXCBYQM=
6IB$" target=3D"_blank">https://datatracker.ietf.org/doc/html/draft-ietf-6m=
an-ipv6-alt-mark-08</a><u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">which is the implementati=
on of RFC <a href=3D"https://urldefense.com/v3/__https:/www.rfc-editor.org/=
rfc/rfc8321.html__;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmHnx-=
jiXCEt7L0EO$" target=3D"_blank">
8321</a> and <a href=3D"https://urldefense.com/v3/__https:/www.rfc-editor.o=
rg/rfc/rfc8889.html__;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmH=
nx-jiXCD5jrkAO$" target=3D"_blank">
8889</a> techniques in an IPv6 framework. IIUC, this is very much how thing=
s are &quot;supposed to work&quot; -- measurement definitions and methodolo=
gy are done by IPPM, and the protocol-specific instantiations are in the re=
spective working groups.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">However, there are compli=
cations in that 8321 and 8889 are Experimental RFCs, and the ipv6-alt-mark =
draft is a Proposed Standard. This has resulted in text from 8321/8889 goin=
g into ipv6-alt-mark so that it can
 be elevated to PS. I&#39;m told that, if the status quo holds, other draft=
s will reference ipv6-alt-mark to avoid a downref. This seems suboptimal.<u=
></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">I would prefer that <b>we=
 take one of the two following actions</b>:<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">1) If the WG has consensu=
s that we are comfortable that there is enough experience with 8321 and/or =
8889 to elevate them to PS, I can initiate a document action to change thei=
r status.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">2) If there is no such co=
nsensus, ipv6-alt-mark should be Experimental.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">In either case, the draft=
 can probably lose some of the duplicate text.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Logically, there is a thi=
rd option -- that the bits of the RFCs copied in the draft are mature enoug=
h to be a standard, but that the others aren&#39;t. Though I&#39;m not an e=
xpert, I doubt this is the case. But if people
 believe it to be true, we&#39;ll have to come up with new options.<u></u><=
u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">I would be grateful for t=
he working group&#39;s thoughts about these documents and the ideas therein=
. Is it reasonable for people to read and reflect on this by 26 August (2 w=
eeks from today?)<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Thanks,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Martin<u></u><u></u></p>
</div>
</div>
</div>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"line-height:112%"><span style=3D"font-famil=
y:&quot;MS Gothic&quot;">=E5=A6=82=E6=9E=9C=E6=82=A8</span><span style=3D"f=
ont-family:&quot;Microsoft JhengHei&quot;,sans-serif">=E9=94=99=E8=AF=AF=E6=
=8E=A5=E6=94=B6=E4=BA=86=E8=AF=A5=E9=82=AE=E4=BB=B6=EF=BC=8C=E8=AF=B7=E9=80=
=9A=E8=BF=87=E7=94=B5=E5=AD=90=E9=82=AE=E4=BB=B6=E7=AB=8B=E5=8D=B3=E9=80=9A=
=E7=9F=A5=E6=88=91=E4=BB=AC=E3=80=82=E8=AF=B7=E5=9B=9E=E5=A4=8D=E9=82=AE=E4=
=BB=B6=E5=88=B0</span>=C2=A0<a href=3D"mailto:hqs-spmc@chinaunicom.cn" targ=
et=3D"_blank">hqs-spmc@chinaunicom.cn</a><span style=3D"font-family:&quot;M=
S Gothic&quot;">=EF=BC=8C=E5=8D=B3=E5=8F=AF=E4=BB=A5=E9=80=80</span><span s=
tyle=3D"font-family:&quot;Microsoft JhengHei&quot;,sans-serif">=E8=AE=A2=E6=
=AD=A4=E9=82=AE=E4=BB=B6=E3=80=82=E6=88=91=E4=BB=AC=E5=B0=86=E7=AB=8B=E5=8D=
=B3=E5=B0=86=E6=82=A8=E7=9A=84=E4=BF=A1=E6=81=AF=E4=BB=8E=E6=88=91=E4=BB=AC=
=E7=9A=84=E5=8F=91=E9=80=81=E7=9B=AE=E5=BD=95=E4=B8=AD=E5=88=A0=E9=99=A4=E3=
=80=82</span>
 If you have received this email in error please notify us immediately by e=
-mail. Please reply to=C2=A0<a href=3D"mailto:hqs-spmc@chinaunicom.cn" targ=
et=3D"_blank">hqs-spmc@chinaunicom.cn</a>=C2=A0,you can unsubscribe from th=
is mail. We will immediately remove your information
 from send catalogue of our. <u></u><u></u></p>
</div>
</blockquote>
</div>
</div>
</div>
</div>

</blockquote></div>

--00000000000055e4ce05ca3f1acc--


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Hi Martin,

I'd like to work on this, as an author or a contributor.

Best Regards,
Xiao Min
------------------原始邮件------------------
发件人：MartinDuke
收件人：MORTON JR., AL;
抄送人：Ran Pang(联通集团中国联通研究院-本部);IETF IPPM WG;
日 期 ：2021年08月24日 03:35
主 题 ：Re: [ippm] RFC 8321 and 8889
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https://www.ietf.org/mailman/listinfo/ippm

Hi Al, this is my impression as well. In a perfect world I would ask the WG to do a bis draft to inventory what is mature and to deprecate the bits that haven't seen real deployment. If it turns out that it's all deployed, then we could do a simpler document action.

Is this work that anyone is interested in taking on?

On Fri, Aug 20, 2021 at 9:41 AM MORTON JR., AL <acmorton@att.com> wrote:
Hi Martin,
While I don’t have a serious concern, I’d prefer to elevate the parts of 8321 that *were implemented* to PS.  I think I read that some parts were not implemented and I look to those who reported on their implementations to say what they did.
This thinning-out of non-implemented capabilities was a feature of Standards Track Advancement processes in the past, so it makes sense to apply it here as well.  I realize this means a new draft, but the processing could be accelerated to match the need.
If the entire RFC 8321 was implemented, then this point is a non-issue.
hope this helps,
Al
From: ippm <ippm-bounces@ietf.org> On Behalf Of Martin Duke
Sent: Friday, August 20, 2021 12:31 PM
To: Ran Pang(联通集团中国联通研究院-本部)  <pangran@chinaunicom.cn>
Cc: IETF IPPM WG <ippm@ietf.org>
Subject: Re: [ippm] RFC 8321 and 8889

Thanks all,
I'm hearing strong consensus that 8321 should be a PS and somewhat weaker support for 8889, but no dissents.
If anyone has serious concerns, this would be a good time to say so.

On Fri, Aug 20, 2021 at 3:02 AM Ran Pang(联通集团中国联通研究院-本部)  <pangran@chinaunicom.cn> wrote:
Hi Martin and WG,
The alt-mk described in RFC8321/8889 has been deployed in some of our networks.
It works well.
So I would like the WG consider elevate them to proposed standard.
Best regards,
Pang Ran.
From: Martin  Duke
Date: 2021-08-13 02:26
To: IETF  IPPM WG
Subject: [ippm]  RFC 8321 and 8889
Hello IPPM,
(with AD hat on)
The IESG is currently considering
https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-08
which is the implementation of RFC  8321 and  8889 techniques in an IPv6 framework. IIUC, this is very much how things are "supposed to work" -- measurement definitions and methodology are done by IPPM, and the protocol-specific instantiations are in the respective working groups.
However, there are complications in that 8321 and 8889 are Experimental RFCs, and the ipv6-alt-mark draft is a Proposed Standard. This has resulted in text from 8321/8889 going into ipv6-alt-mark so that it can  be elevated to PS. I'm told that, if the status quo holds, other drafts will reference ipv6-alt-mark to avoid a downref. This seems suboptimal.
I would prefer that we take one of the two following actions:
1) If the WG has consensus that we are comfortable that there is enough experience with 8321 and/or 8889 to elevate them to PS, I can initiate a document action to change their status.
2) If there is no such consensus, ipv6-alt-mark should be Experimental.
In either case, the draft can probably lose some of the duplicate text.
Logically, there is a third option -- that the bits of the RFCs copied in the draft are mature enough to be a standard, but that the others aren't. Though I'm not an expert, I doubt this is the case. But if people  believe it to be true, we'll have to come up with new options.
I would be grateful for the working group's thoughts about these documents and the ideas therein. Is it reasonable for people to read and reflect on this by 26 August (2 weeks from today?)
Thanks,
Martin
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From: Giuseppe Fioccola <giuseppe.fioccola@huawei.com>
To: Martin Duke <martin.h.duke@gmail.com>, "MORTON JR., AL" <acmorton@att.com>
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Thread-Topic: [ippm] RFC 8321 and 8889
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Date: Tue, 24 Aug 2021 08:36:07 +0000
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Subject: Re: [ippm] RFC 8321 and 8889
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From: Cociglio Mauro <mauro.cociglio@telecomitalia.it>
To: Martin Duke <martin.h.duke@gmail.com>, "MORTON JR., AL" <acmorton@att.com>
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Thread-Topic: Re: [ippm] RFC 8321 and 8889
Thread-Index: AQHXmOUyxNT9LSKU5ka7Yvn0CyeEtw==
Date: Tue, 24 Aug 2021 12:54:48 +0000
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--_000_DBAPR07MB677531233878DE457A031241E9C59DBAPR07MB6775eurp_
Content-Type: text/html; charset="gb2312"
Content-Transfer-Encoding: quoted-printable

<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dgb2312">
</head>
<body dir=3D"auto">
<div dir=3D"auto"><span style=3D"color: rgb(87, 87, 87); font-size: 85%;">Hi=
 Martin and All.</span></div>
<div dir=3D"auto" id=3D"composer_signature">
<div dir=3D"auto" style=3D"font-size:85%;color:#575757">The 2 bits described=
 in RFC8321 are both implemented so I would rather simply elevate it to PS.&=
nbsp;</div>
<div dir=3D"auto" style=3D"font-size:85%;color:#575757">Regards.</div>
<div dir=3D"auto" style=3D"font-size:85%;color:#575757">Mauro</div>
</div>
<div dir=3D"auto"><br>
</div>
<div><br>
</div>
<div dir=3D"auto" style=3D"font-size:100%;color:#000000"></div>
<div style=3D"font-size:100%;color:#000000" dir=3D"auto" align=3D"left">
<div>-------- Messaggio originale --------</div>
<div>Da: Martin Duke &lt;martin.h.duke@gmail.com&gt; </div>
<div>Data: 23/08/21 21:35 (GMT+01:00) </div>
<div>A: &quot;MORTON JR., AL&quot; &lt;acmorton@att.com&gt; </div>
<div>Cc: &quot;Ran Pang(=C1=AA=CD=A8=BC=AF=CD=C5=D6=D0=B9=FA=C1=AA=CD=A8=D1=
=D0=BE=BF=D4=BA-=B1=BE=B2=BF)&quot; &lt;pangran@chinaunicom.cn&gt;, IETF IPP=
M WG &lt;ippm@ietf.org&gt;
</div>
<div>Oggetto: Re: [ippm] RFC 8321 and 8889 </div>
<div><br>
</div>
</div>
<div dir=3D"ltr">
<div>Hi Al, this is my impression as well. In a perfect world I would ask th=
e WG to do a bis draft to inventory what is mature and to deprecate the bits=
 that haven't seen real deployment. If it turns out that it's all deployed,=
 then we could do a simpler document
 action.<br>
</div>
<div><br>
</div>
<div>Is this work that anyone is interested in taking on?<br>
</div>
</div>
<br dir=3D"auto">
<div class=3D"gmail_quote" dir=3D"auto">
<div dir=3D"ltr" class=3D"gmail_attr">On Fri, Aug 20, 2021 at 9:41 AM MORTON=
 JR., AL &lt;<a href=3D"mailto:acmorton@att.com">acmorton@att.com</a>&gt; wr=
ote:<br>
</div>
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex; border-=
left:1px solid rgb(204,204,204); padding-left:1ex">
<div lang=3D"EN-US" style=3D"">
<div class=3D"gmail-m_-3489247091655101519WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">H=
i Martin,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;"><=
u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">W=
hile I don=A1=AFt have a serious concern, I=A1=AFd prefer to elevate the par=
ts of 8321 that *<b>were implemented</b>* to PS.<span>&nbsp;
</span>I think I read that some parts were not implemented and I look to tho=
se who reported on their implementations to say what they did.<u></u><u></u>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;"><=
u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">T=
his thinning-out of non-implemented capabilities was a feature of Standards=
 Track Advancement processes in the past, so it makes sense to apply it here=
 as well.<span>&nbsp;
</span>I realize this means a new draft, but the processing could be acceler=
ated to match the need.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;"><=
u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">I=
f the entire RFC 8321 was implemented, then this point is a non-issue.<u></u=
><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;"><=
u></u>&nbsp;<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">h=
ope this helps,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">A=
l<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;"><=
u></u>&nbsp;<u></u></span></p>
<div style=3D"border-color:currentcolor currentcolor currentcolor blue; bord=
er-style:none none none solid; border-width:medium medium medium 1.5pt; padd=
ing:0in 0in 0in 4pt">
<div>
<div style=3D"border-color:rgb(225,225,225) currentcolor currentcolor; borde=
r-style:solid none none; border-width:1pt medium medium; padding:3pt 0in 0in=
">
<p class=3D"MsoNormal"><b><span>From:</span></b><span> ippm &lt;<a href=3D"m=
ailto:ippm-bounces@ietf.org">ippm-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b>Martin Duke<br>
<b>Sent:</b> Friday, August 20, 2021 12:31 PM<br>
<b>To:</b> Ran Pang(</span><span style=3D"font-family:&quot;Microsoft JhengH=
ei&quot;,sans-serif">=C1=AA=CD=A8=BC=AF=CD=C5=D6=D0=B9=FA=C1=AA=CD=A8=D1=D0=
=BE=BF=D4=BA</span><span>-</span><span style=3D"font-family:&quot;MS Gothic&=
quot;">=B1=BE=B2=BF</span><span>) &lt;<a href=3D"mailto:pangran@chinaunicom.=
cn">pangran@chinaunicom.cn</a>&gt;<br>
<b>Cc:</b> IETF IPPM WG &lt;<a href=3D"mailto:ippm@ietf.org">ippm@ietf.org</=
a>&gt;<br>
<b>Subject:</b> Re: [ippm] RFC 8321 and 8889<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>&nbsp;<u></u></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Thanks all,<u></u><u></u><=
/p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>&nbsp;<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">I'm hearing strong consens=
us that 8321 should be a PS and somewhat weaker support for 8889, but no dis=
sents.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>&nbsp;<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">If anyone has serious conc=
erns, this would be a good time to say so.<u></u><u></u></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>&nbsp;<u></u></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">On Fri, Aug 20, 2021 at 3:=
02 AM Ran Pang(<span style=3D"font-family:&quot;Microsoft JhengHei&quot;,san=
s-serif">=C1=AA=CD=A8=BC=AF=CD=C5=D6=D0=B9=FA=C1=AA=CD=A8=D1=D0=BE=BF=D4=BA<=
/span>-<span style=3D"font-family:&quot;MS Gothic&quot;">=B1=BE=B2=BF</span>=
) &lt;<a href=3D"mailto:pangran@chinaunicom.cn">pangran@chinaunicom.cn</a>&g=
t;
 wrote:<u></u><u></u></p>
</div>
<blockquote style=3D"border-color:currentcolor currentcolor currentcolor rgb=
(204,204,204); border-style:none none none solid; border-width:medium medium=
 medium 1pt; padding:0in 0in 0in 6pt; margin-left:4.8pt; margin-right:0in">
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Hi Martin and WG,<u></u><u=
></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>&nbsp;<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">The alt-mk described in RFC8321/8889 has been deploye=
d in some of our networks.<u></u><u></u></p>
<p class=3D"MsoNormal">It works well.<u></u><u></u></p>
<p class=3D"MsoNormal">So I would like the WG consider elevate them to propo=
sed standard.<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>&nbsp;<u></u></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Best regards,<u></u><u></u=
></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Pang Ran.<u></u><u></u></p=
>
</div>
</div>
<blockquote style=3D"margin-left:6pt; margin-right:inherit">
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">&nbsp;<u></u><u></u></p>
</div>
<div style=3D"border-style:solid none none; border-width:1pt medium medium;=
 padding:3pt 0in 0in; border-color:currentcolor">
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%; background:rgb(239,239,239=
) none repeat scroll 0% 0%">
<b><span style=3D"font-size:9pt; line-height:112%; font-family:&quot;Tahoma&=
quot;,sans-serif; color:black">From:</span></b><span style=3D"font-size:9pt;=
 line-height:112%; font-family:&quot;Tahoma&quot;,sans-serif; color:black">&=
nbsp;<a href=3D"mailto:martin.h.duke@gmail.com">Martin Duke</a><u></u><u></u=
></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%; background:rgb(239,239,239=
) none repeat scroll 0% 0%">
<b><span style=3D"font-size:9pt; line-height:112%; font-family:&quot;Tahoma&=
quot;,sans-serif; color:black">Date:</span></b><span style=3D"font-size:9pt;=
 line-height:112%; font-family:&quot;Tahoma&quot;,sans-serif; color:black">&=
nbsp;2021-08-13&nbsp;02:26<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%; background:rgb(239,239,239=
) none repeat scroll 0% 0%">
<b><span style=3D"font-size:9pt; line-height:112%; font-family:&quot;Tahoma&=
quot;,sans-serif; color:black">To:</span></b><span style=3D"font-size:9pt; l=
ine-height:112%; font-family:&quot;Tahoma&quot;,sans-serif; color:black">&nb=
sp;<a href=3D"mailto:ippm@ietf.org">IETF IPPM WG</a><u></u><u></u></span></p=
>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%; background:rgb(239,239,239=
) none repeat scroll 0% 0%">
<b><span style=3D"font-size:9pt; line-height:112%; font-family:&quot;Tahoma&=
quot;,sans-serif; color:black">Subject:</span></b><span style=3D"font-size:9=
pt; line-height:112%; font-family:&quot;Tahoma&quot;,sans-serif; color:black=
">&nbsp;[ippm] RFC 8321 and 8889<u></u><u></u></span></p>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Hello IPPM,<u></u><u></u><=
/p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>&nbsp;<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">(with AD hat on)<u></u><u>=
</u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>&nbsp;<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">The IESG is currently cons=
idering<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><a href=3D"https://urldefe=
nse.com/v3/__https:/datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-m=
ark-08__;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmHnx-jiXCBYQM6IB=
$">https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-08</a=
><u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">which is the implementatio=
n of RFC <a href=3D"https://urldefense.com/v3/__https:/www.rfc-editor.org/rf=
c/rfc8321.html__;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmHnx-jiX=
CEt7L0EO$">
8321</a> and <a href=3D"https://urldefense.com/v3/__https:/www.rfc-editor.or=
g/rfc/rfc8889.html__;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmHnx=
-jiXCD5jrkAO$">
8889</a> techniques in an IPv6 framework. IIUC, this is very much how things=
 are &quot;supposed to work&quot; -- measurement definitions and methodology=
 are done by IPPM, and the protocol-specific instantiations are in the respe=
ctive working groups.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>&nbsp;<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">However, there are complic=
ations in that 8321 and 8889 are Experimental RFCs, and the ipv6-alt-mark dr=
aft is a Proposed Standard. This has resulted in text from 8321/8889 going i=
nto ipv6-alt-mark so that it can
 be elevated to PS. I'm told that, if the status quo holds, other drafts wil=
l reference ipv6-alt-mark to avoid a downref. This seems suboptimal.<u></u><=
u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>&nbsp;<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">I would prefer that <b>we=
 take one of the two following actions</b>:<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">1) If the WG has consensus=
 that we are comfortable that there is enough experience with 8321 and/or 88=
89 to elevate them to PS, I can initiate a document action to change their s=
tatus.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>&nbsp;<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">2) If there is no such con=
sensus, ipv6-alt-mark should be Experimental.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>&nbsp;<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">In either case, the draft=
 can probably lose some of the duplicate text.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>&nbsp;<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Logically, there is a thir=
d option -- that the bits of the RFCs copied in the draft are mature enough=
 to be a standard, but that the others aren't. Though I'm not an expert, I d=
oubt this is the case. But if people
 believe it to be true, we'll have to come up with new options.<u></u><u></u=
></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>&nbsp;<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">I would be grateful for th=
e working group's thoughts about these documents and the ideas therein. Is i=
t reasonable for people to read and reflect on this by 26 August (2 weeks fr=
om today?)<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%"><u></u>&nbsp;<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Thanks,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:112%">Martin<u></u><u></u></p>
</div>
</div>
</div>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"line-height:112%"><span style=3D"font-family=
:&quot;MS Gothic&quot;">=C8=E7=B9=FB=C4=FA</span><span style=3D"font-family:=
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=C3=D3=CA=BC=FE=A3=AC=C7=EB=CD=A8=B9=FD=B5=E7=D7=D3=D3=CA=BC=FE=C1=A2=BC=B4=
=CD=A8=D6=AA=CE=D2=C3=C7=A1=A3=C7=EB=BB=D8=B8=B4=D3=CA=BC=FE=B5=BD</span>&nb=
sp;<a href=3D"mailto:hqs-spmc@chinaunicom.cn">hqs-spmc@chinaunicom.cn</a><sp=
an style=3D"font-family:&quot;MS Gothic&quot;">=A3=AC=BC=B4=BF=C9=D2=D4=CD=
=CB</span><span style=3D"font-family:&quot;Microsoft JhengHei&quot;,sans-ser=
if">=B6=A9=B4=CB=D3=CA=BC=FE=A1=A3=CE=D2=C3=C7=BD=AB=C1=A2=BC=B4=BD=AB=C4=FA=
=B5=C4=D0=C5=CF=A2=B4=D3=CE=D2=C3=C7=B5=C4=B7=A2=CB=CD=C4=BF=C2=BC=D6=D0=C9=
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From: Mach Chen <mach.chen@huawei.com>
To: Cociglio Mauro <mauro.cociglio=40telecomitalia.it@dmarc.ietf.org>, "Martin Duke" <martin.h.duke@gmail.com>, "MORTON JR., AL" <acmorton@att.com>
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Thread-Topic: Re: [ippm] RFC 8321 and 8889
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Date: Wed, 25 Aug 2021 01:00:41 +0000
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Hi all,<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">As I know, the two alt=
ernatives defined in RFC 8321 are both implemented, I also agree with idea =
to elevate RFC 8321 to PS.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Best regards,<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Mach<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-=
family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:11.0pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif">From:</span></b><span lang=3D"EN-=
US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif"> =
ippm [mailto:ippm-bounces@ietf.org]
<b>On Behalf Of </b>Cociglio Mauro<br>
<b>Sent:</b> Tuesday, August 24, 2021 8:55 PM<br>
<b>To:</b> Martin Duke &lt;martin.h.duke@gmail.com&gt;; MORTON JR., AL &lt;=
acmorton@att.com&gt;<br>
<b>Cc:</b> Ran Pang(</span><span style=3D"font-size:11.0pt">=C1=AA=CD=A8=BC=
=AF=CD=C5=D6=D0=B9=FA=C1=AA=CD=A8=D1=D0=BE=BF=D4=BA</span><span lang=3D"EN-=
US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">-=
</span><span style=3D"font-size:11.0pt">=B1=BE=B2=BF</span><span lang=3D"EN=
-US" style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">=
)
 &lt;pangran@chinaunicom.cn&gt;; IETF IPPM WG &lt;ippm@ietf.org&gt;<br>
<b>Subject:</b> Re: [ippm] RFC 8321 and 8889<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>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;color=
:#575757">Hi Martin and All.</span><span lang=3D"EN-US"><o:p></o:p></span><=
/p>
</div>
<div id=3D"composer_signature">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;color=
:#575757">The 2 bits described in RFC8321 are both implemented so I would r=
ather simply elevate it to PS.&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;color=
:#575757">Regards.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;color=
:#575757">Mauro<o:p></o:p></span></p>
</div>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">-------- =
Messaggio originale --------<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">Da: Marti=
n Duke &lt;<a href=3D"mailto:martin.h.duke@gmail.com">martin.h.duke@gmail.c=
om</a>&gt;
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">Data: 23/=
08/21 21:35 (GMT&#43;01:00)
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">A: &quot;=
MORTON JR., AL&quot; &lt;<a href=3D"mailto:acmorton@att.com">acmorton@att.c=
om</a>&gt;
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">Cc: &quot=
;Ran Pang(</span><span style=3D"color:black">=C1=AA=CD=A8=BC=AF=CD=C5=D6=D0=
=B9=FA=C1=AA=CD=A8=D1=D0=BE=BF=D4=BA<span lang=3D"EN-US">-</span>=B1=BE=B2=
=BF<span lang=3D"EN-US">)&quot; &lt;<a href=3D"mailto:pangran@chinaunicom.c=
n">pangran@chinaunicom.cn</a>&gt;, IETF IPPM WG &lt;<a href=3D"mailto:ippm@=
ietf.org">ippm@ietf.org</a>&gt;
<o:p></o:p></span></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black">Oggetto: =
Re: [ippm] RFC 8321 and 8889
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:black"><o:p>&nbs=
p;</o:p></span></p>
</div>
<div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi Al, this is my impression as=
 well. In a perfect world I would ask the WG to do a bis draft to inventory=
 what is mature and to deprecate the bits that haven't seen real deployment=
. If it turns out that it's all deployed,
 then we could do a simpler document action.<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>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Is this work that anyone is int=
erested in taking on?<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>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">On Fri, Aug 20, 2021 at 9:41 AM=
 MORTON JR., AL &lt;<a href=3D"mailto:acmorton@att.com">acmorton@att.com</a=
>&gt; wrote:<o:p></o:p></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid #CCCCCC 1.0pt;padding:0c=
m 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-family:&quot;Courier New&quot;"=
>Hi Martin,</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-family:&quot;Courier New&quot;"=
>&nbsp;</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-family:&quot;Courier New&quot;"=
>While I don=A1=AFt have a serious concern, I=A1=AFd prefer to elevate the =
parts of 8321 that *<b>were implemented</b>* to PS.&nbsp; I think
 I read that some parts were not implemented and I look to those who report=
ed on their implementations to say what they did.</span><span lang=3D"EN-US=
"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-family:&quot;Courier New&quot;"=
>&nbsp;</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-family:&quot;Courier New&quot;"=
>This thinning-out of non-implemented capabilities was a feature of Standar=
ds Track Advancement processes in the past, so it
 makes sense to apply it here as well.&nbsp; I realize this means a new dra=
ft, but the processing could be accelerated to match the need.</span><span =
lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-family:&quot;Courier New&quot;"=
>&nbsp;</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-family:&quot;Courier New&quot;"=
>If the entire RFC 8321 was implemented, then this point is a non-issue.</s=
pan><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-family:&quot;Courier New&quot;"=
>&nbsp;</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-family:&quot;Courier New&quot;"=
>hope this helps,</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-family:&quot;Courier New&quot;"=
>Al</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US" style=3D"font-family:&quot;Courier New&quot;"=
>&nbsp;</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<div style=3D"border:none;border-left:solid windowtext 1.5pt;padding:0cm 0c=
m 0cm 4.0pt;border-color:currentcolor currentcolor currentcolor blue">
<div>
<div style=3D"border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0=
cm 0cm 0cm;border-color:currentcolor currentcolor">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><b><span lang=3D"EN-US">From:</span></b><span lang=3D"EN-US"> ippm=
 &lt;<a href=3D"mailto:ippm-bounces@ietf.org">ippm-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b>Martin Duke<br>
<b>Sent:</b> Friday, August 20, 2021 12:31 PM<br>
<b>To:</b> Ran Pang(</span><span style=3D"font-family:&quot;Microsoft Jheng=
Hei&quot;,sans-serif">=C1=AA=CD=A8=BC=AF=CD=C5=D6=D0=B9=FA=C1=AA=CD=A8=D1=
=D0=BE=BF=D4=BA</span><span lang=3D"EN-US">-</span><span style=3D"font-fami=
ly:&quot;MS Gothic&quot;">=B1=BE=B2=BF</span><span lang=3D"EN-US">) &lt;<a =
href=3D"mailto:pangran@chinaunicom.cn">pangran@chinaunicom.cn</a>&gt;<br>
<b>Cc:</b> IETF IPPM WG &lt;<a href=3D"mailto:ippm@ietf.org">ippm@ietf.org<=
/a>&gt;<br>
<b>Subject:</b> Re: [ippm] RFC 8321 and 8889<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">Thanks all,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">I'm hearing strong consensus that 8321 should be a PS =
and somewhat weaker support for 8889, but no dissents.<o:p></o:p></span></p=
>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">If anyone has serious concerns, this would be a good t=
ime to say so.<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">On Fri, Aug 20, 2021 at 3:02 AM Ran Pang(</span><span =
style=3D"font-family:&quot;Microsoft JhengHei&quot;,sans-serif">=C1=AA=CD=
=A8=BC=AF=CD=C5=D6=D0=B9=FA=C1=AA=CD=A8=D1=D0=BE=BF=D4=BA</span><span lang=
=3D"EN-US">-</span><span style=3D"font-family:&quot;MS Gothic&quot;">=B1=BE=
=B2=BF</span><span lang=3D"EN-US">) &lt;<a href=3D"mailto:pangran@chinaunic=
om.cn">pangran@chinaunicom.cn</a>&gt;
 wrote:<o:p></o:p></span></p>
</div>
<blockquote style=3D"border:none;border-left:solid windowtext 1.0pt;padding=
:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;marg=
in-bottom:5.0pt;border-color:currentcolor currentcolor currentcolor rgb(204=
,204,204)">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">Hi Martin and WG,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">The alt-mk described in RFC8321/8889 has been=
 deployed in some of our networks.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">It works well.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">So I would like the WG consider elevate them =
to proposed standard.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">Best regards,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">Pang Ran.<o:p></o:p></span></p>
</div>
</div>
<blockquote style=3D"margin-left:6.0pt;margin-top:5.0pt;margin-bottom:5.0pt=
;margin-right:inherit">
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div style=3D"border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0=
cm 0cm 0cm;border-color:currentcolor">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%;background:#EFEFEF">
<b><span lang=3D"EN-US" style=3D"font-size:9.0pt;line-height:111%;font-fami=
ly:&quot;Tahoma&quot;,sans-serif;color:black">From:</span></b><span lang=3D=
"EN-US" style=3D"font-size:9.0pt;line-height:111%;font-family:&quot;Tahoma&=
quot;,sans-serif;color:black">&nbsp;<a href=3D"mailto:martin.h.duke@gmail.c=
om">Martin
 Duke</a></span><span lang=3D"EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%;background:#EFEFEF;background-attachment:scroll;ba=
ckground-position-x:0%;background-position-y:0%">
<b><span lang=3D"EN-US" style=3D"font-size:9.0pt;line-height:111%;font-fami=
ly:&quot;Tahoma&quot;,sans-serif;color:black">Date:</span></b><span lang=3D=
"EN-US" style=3D"font-size:9.0pt;line-height:111%;font-family:&quot;Tahoma&=
quot;,sans-serif;color:black">&nbsp;2021-08-13&nbsp;02:26</span><span lang=
=3D"EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%;background:#EFEFEF;background-attachment:scroll;ba=
ckground-position-x:0%;background-position-y:0%">
<b><span lang=3D"EN-US" style=3D"font-size:9.0pt;line-height:111%;font-fami=
ly:&quot;Tahoma&quot;,sans-serif;color:black">To:</span></b><span lang=3D"E=
N-US" style=3D"font-size:9.0pt;line-height:111%;font-family:&quot;Tahoma&qu=
ot;,sans-serif;color:black">&nbsp;<a href=3D"mailto:ippm@ietf.org">IETF
 IPPM WG</a></span><span lang=3D"EN-US"><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%;background:#EFEFEF;background-attachment:scroll;ba=
ckground-position-x:0%;background-position-y:0%">
<b><span lang=3D"EN-US" style=3D"font-size:9.0pt;line-height:111%;font-fami=
ly:&quot;Tahoma&quot;,sans-serif;color:black">Subject:</span></b><span lang=
=3D"EN-US" style=3D"font-size:9.0pt;line-height:111%;font-family:&quot;Taho=
ma&quot;,sans-serif;color:black">&nbsp;[ippm] RFC 8321 and 8889</span><span=
 lang=3D"EN-US"><o:p></o:p></span></p>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">Hello IPPM,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">(with AD hat on)<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">The IESG is currently considering<o:p></o:p></span></p=
>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US"><a href=3D"https://urldefense.com/v3/__https:/datatrac=
ker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-08__;!!BhdT!04s1Z7EtCnJ=
rifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmHnx-jiXCBYQM6IB$">https://datatracker.iet=
f.org/doc/html/draft-ietf-6man-ipv6-alt-mark-08</a><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">which is the implementation of RFC <a href=3D"https://=
urldefense.com/v3/__https:/www.rfc-editor.org/rfc/rfc8321.html__;!!BhdT!04s=
1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmHnx-jiXCEt7L0EO$">
8321</a> and <a href=3D"https://urldefense.com/v3/__https:/www.rfc-editor.o=
rg/rfc/rfc8889.html__;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmH=
nx-jiXCD5jrkAO$">
8889</a> techniques in an IPv6 framework. IIUC, this is very much how thing=
s are &quot;supposed to work&quot; -- measurement definitions and methodolo=
gy are done by IPPM, and the protocol-specific instantiations are in the re=
spective working groups.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">However, there are complications in that 8321 and 8889=
 are Experimental RFCs, and the ipv6-alt-mark draft is a Proposed Standard.=
 This has resulted in text from 8321/8889 going into ipv6-alt-mark so that =
it can be elevated to PS. I'm told
 that, if the status quo holds, other drafts will reference ipv6-alt-mark t=
o avoid a downref. This seems suboptimal.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">I would prefer that <b>we take one of the two followin=
g actions</b>:<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">1) If the WG has consensus that we are comfortable tha=
t there is enough experience with 8321 and/or 8889 to elevate them to PS, I=
 can initiate a document action to change their status.<o:p></o:p></span></=
p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">2) If there is no such consensus, ipv6-alt-mark should=
 be Experimental.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">In either case, the draft can probably lose some of th=
e duplicate text.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">Logically, there is a third option -- that the bits of=
 the RFCs copied in the draft are mature enough to be a standard, but that =
the others aren't. Though I'm not an expert, I doubt this is the case. But =
if people believe it to be true, we'll
 have to come up with new options.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">I would be grateful for the working group's thoughts a=
bout these documents and the ideas therein. Is it reasonable for people to =
read and reflect on this by 26 August (2 weeks from today?)<o:p></o:p></spa=
n></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">Thanks,<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span lang=3D"EN-US">Martin<o:p></o:p></span></p>
</div>
</div>
</div>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto;line-height:111%">
<span style=3D"font-family:&quot;MS Gothic&quot;">=C8=E7=B9=FB=C4=FA</span>=
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 If you have received this email in error please notify us immediately by e=
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</blockquote>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<div class=3D"MsoNormal" align=3D"center" style=3D"text-align:center"><span=
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<hr size=3D"2" width=3D"100%" align=3D"center">
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From: Tommy Pauly <tpauly@apple.com>
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To: Martin Duke <martin.h.duke@gmail.com>, "MORTON JR., AL" <acmorton@att.com>
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Subject: Re: [ippm] Proposed changes to default settings in the Capacity metric load adjustment algorithm
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I haven=E2=80=99t seen any feedback here, but I think the change makes =
sense.

Al, I think you should be good to go ahead with this.

Best,
Tommy

> On Aug 12, 2021, at 10:48 AM, Martin Duke <martin.h.duke@gmail.com> =
wrote:
>=20
> Hello IPPM,
>=20
> If you have any comments about this change, please send them to this =
list no later than 24 August.
>=20
> On Tue, Aug 3, 2021 at 3:01 PM MORTON JR., AL <acmorton@att.com =
<mailto:acmorton@att.com>> wrote:
> IPPM,
>=20
> I want to point out that some recent results conducted by others =
encouraged us to test some additional values for seq error threshold and =
a wider value range of values for consecutive errored status (during =
feedback intervals).  We discovered that we would like to revise the =
default values to make the load adjustment a little less-sensitive to =
non-congestion-related loss and protect the fast ramp-up from ending =
prematurely. For example, a very short burst of lost packets spanning =
the boundary between two feedback intervals is currently sufficient to =
end fast ramp-up.
>=20
> The current table in 8.1 contains:
> +--------------+-------------+--------------+-----------------------+
> | Parameter    | Default     | Tested Range | Expected Safe Range   |
> |              |             | or values    | (not entirely tested, |
> |              |             |              | other values NOT      |
> |              |             |              | RECOMMENDED)          |
> +--------------+-------------+--------------+-----------------------+
> ...
> +--------------+-------------+--------------+-----------------------+
> | sequence     | 0           | 0, 100       | same as tested        |
> | error        |             |              |                       |
> | threshold    |             |              |                       |
> +--------------+-------------+--------------+-----------------------+
> | consecutive  | 2           | 2            | Use values >1 to      |
> | errored      |             |              | avoid misinterpreting |
> | status       |             |              | transient loss        |
> +--------------+-------------+--------------+-----------------------+
>=20
>=20
> The revised table rows would look like this:
>=20
> +--------------+-------------+--------------+-----------------------+
> | Parameter    | Default     | Tested Range | Expected Safe Range   |
> |              |             | or values    | (not entirely tested, |
> |              |             |              | other values NOT      |
> |              |             |              | RECOMMENDED)          |
> +--------------+-------------+--------------+-----------------------+
> ...
> +--------------+-------------+--------------+-----------------------+
> | sequence     | 10          | 0,1,5,10,100 | same as tested        |
> | error        |             |              |                       |
> | threshold    |             |              |                       |
> +--------------+-------------+--------------+-----------------------+
> | consecutive  | 3           | 2,3,4,5      | Use values >1 to      |
> | errored      |             |              | avoid misinterpreting |
> | status       |             |              | transient loss        |
> +--------------+-------------+--------------+-----------------------+
>=20
> Somehow, persistent non-congestion-related loss had mostly eluded our =
previous tests. But our goal has been to provide default values that =
will work in automated testing run by anyone in any implementation or =
circumstances - not just ~expert users and those who run the udpst =
utility.
>=20
> So we'd like to change default values for:
>=20
>   seq error threshold         from 0 to 10
>   consecutive errored status  from 2 to  3
>=20
> and update our tested range/values column as well.
>=20
> Al
>=20


--Apple-Mail=_D6E54BEF-A0AA-47D0-A5E4-8D4F6736AAF8
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D"">I =
haven=E2=80=99t seen any feedback here, but I think the change makes =
sense.<div class=3D""><br class=3D""></div><div class=3D"">Al, I think =
you should be good to go ahead with this.</div><div class=3D""><br =
class=3D""></div><div class=3D"">Best,</div><div class=3D"">Tommy<br =
class=3D""><div><br class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D"">On Aug 12, 2021, at 10:48 AM, Martin Duke &lt;<a =
href=3D"mailto:martin.h.duke@gmail.com" =
class=3D"">martin.h.duke@gmail.com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div dir=3D"ltr" =
class=3D""><div class=3D"">Hello IPPM,</div><div class=3D""><br =
class=3D""></div><div class=3D"">If you have any comments about this =
change, please send them to this list no later than 24 August.<br =
class=3D""></div></div><br class=3D""><div class=3D"gmail_quote"><div =
dir=3D"ltr" class=3D"gmail_attr">On Tue, Aug 3, 2021 at 3:01 PM MORTON =
JR., AL &lt;<a href=3D"mailto:acmorton@att.com" =
class=3D"">acmorton@att.com</a>&gt; wrote:<br class=3D""></div><blockquote=
 class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px =
solid rgb(204,204,204);padding-left:1ex">IPPM,<br class=3D"">
<br class=3D"">
I want to point out that some recent results conducted by others =
encouraged us to test some additional values for seq error threshold and =
a wider value range of values for consecutive errored status (during =
feedback intervals).&nbsp; We discovered that we would like to revise =
the default values to make the load adjustment a little less-sensitive =
to non-congestion-related loss and protect the fast ramp-up from ending =
prematurely. For example, a very short burst of lost packets spanning =
the boundary between two feedback intervals is currently sufficient to =
end fast ramp-up.<br class=3D"">
<br class=3D"">
The current table in 8.1 contains:<br class=3D"">
+--------------+-------------+--------------+-----------------------+<br =
class=3D"">
| Parameter&nbsp; &nbsp; | Default&nbsp; &nbsp; &nbsp;| Tested Range | =
Expected Safe Range&nbsp; &nbsp;|<br class=3D"">
|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |&nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp;| or values&nbsp; &nbsp; | (not entirely =
tested, |<br class=3D"">
|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |&nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; | other values NOT&nbsp; &nbsp; &nbsp; |<br class=3D"">
|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |&nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; | RECOMMENDED)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |<br class=3D"">
+--------------+-------------+--------------+-----------------------+<br =
class=3D"">
...<br class=3D"">
+--------------+-------------+--------------+-----------------------+<br =
class=3D"">
| sequence&nbsp; &nbsp; &nbsp;| 0&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp;| 0, 100&nbsp; &nbsp; &nbsp; &nbsp;| same as tested&nbsp; &nbsp; =
&nbsp; &nbsp; |<br class=3D"">
| error&nbsp; &nbsp; &nbsp; &nbsp; |&nbsp; &nbsp; &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 class=3D"">
| threshold&nbsp; &nbsp; |&nbsp; &nbsp; &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 class=3D"">
+--------------+-------------+--------------+-----------------------+<br =
class=3D"">
| consecutive&nbsp; | 2&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| =
2&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; | Use values &gt;1 to&nbsp; =
&nbsp; &nbsp; |<br class=3D"">
| errored&nbsp; &nbsp; &nbsp; |&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; | avoid =
misinterpreting |<br class=3D"">
| status&nbsp; &nbsp; &nbsp; &nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; | =
transient loss&nbsp; &nbsp; &nbsp; &nbsp; |<br class=3D"">
+--------------+-------------+--------------+-----------------------+<br =
class=3D"">
<br class=3D"">
<br class=3D"">
The revised table rows would look like this:<br class=3D"">
<br class=3D"">
+--------------+-------------+--------------+-----------------------+<br =
class=3D"">
| Parameter&nbsp; &nbsp; | Default&nbsp; &nbsp; &nbsp;| Tested Range | =
Expected Safe Range&nbsp; &nbsp;|<br class=3D"">
|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |&nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp;| or values&nbsp; &nbsp; | (not entirely =
tested, |<br class=3D"">
|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |&nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; | other values NOT&nbsp; &nbsp; &nbsp; |<br class=3D"">
|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |&nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; | RECOMMENDED)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |<br class=3D"">
+--------------+-------------+--------------+-----------------------+<br =
class=3D"">
...<br class=3D"">
+--------------+-------------+--------------+-----------------------+<br =
class=3D"">
| sequence&nbsp; &nbsp; &nbsp;| 10&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; | =
0,1,5,10,100 | same as tested&nbsp; &nbsp; &nbsp; &nbsp; |<br class=3D"">
| error&nbsp; &nbsp; &nbsp; &nbsp; |&nbsp; &nbsp; &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 class=3D"">
| threshold&nbsp; &nbsp; |&nbsp; &nbsp; &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 class=3D"">
+--------------+-------------+--------------+-----------------------+<br =
class=3D"">
| consecutive&nbsp; | 3&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;| =
2,3,4,5&nbsp; &nbsp; &nbsp; | Use values &gt;1 to&nbsp; &nbsp; &nbsp; =
|<br class=3D"">
| errored&nbsp; &nbsp; &nbsp; |&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; | avoid =
misinterpreting |<br class=3D"">
| status&nbsp; &nbsp; &nbsp; &nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp;|&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; | =
transient loss&nbsp; &nbsp; &nbsp; &nbsp; |<br class=3D"">
+--------------+-------------+--------------+-----------------------+<br =
class=3D"">
<br class=3D"">
Somehow, persistent non-congestion-related loss had mostly eluded our =
previous tests. But our goal has been to provide default values that =
will work in automated testing run by anyone in any implementation or =
circumstances - not just ~expert users and those who run the udpst =
utility.<br class=3D"">
<br class=3D"">
So we'd like to change default values for:<br class=3D"">
<br class=3D"">
&nbsp; seq error threshold&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;from 0 to =
10<br class=3D"">
&nbsp; consecutive errored status&nbsp; from 2 to&nbsp; 3<br class=3D"">
<br class=3D"">
and update our tested range/values column as well.<br class=3D"">
<br class=3D"">
Al<br class=3D"">
<br class=3D"">
</blockquote></div>
</div></blockquote></div><br class=3D""></div></body></html>=

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To: Greg Mirsky <gregory.mirsky@ztetx.com>
Cc: "MORTON, ALFRED C (AL)" <acmorton@att.com>, ippm-ads@ietf.org, IPPM Chairs <ippm-chairs@ietf.org>, IETF IPPM WG <ippm@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ippm/OybHMPaJv0c8b-znw-Y5rQjV4DI>
Subject: Re: [ippm] Proposed changes to default settings in the Capacity metric load adjustment algorithm
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yes, let's make the change and proceed.

Thanks

On Wed, Aug 25, 2021 at 3:22 PM <gregory.mirsky@ztetx.com> wrote:

> Hi, Martin et al.,
>
> my apologies for the late response.
>
> I've reviewed the proposed changes in the default values. I agree that
> these changes make the out-of-box capacity measurement less sensitive to =
an
> occasional non-congestion-related loss of packets while preserving the
> algorithm's fast ramp-up behavior. Clearly, a win-win update. I support i=
t.
>
>
> Regards,
>
> Greg Mirsky
>
>
> Sr. Standardization Expert
> =E9=A2=84=E7=A0=94=E6=A0=87=E5=87=86=E9=83=A8/=E6=9C=89=E7=BA=BF=E7=A0=94=
=E7=A9=B6=E9=99=A2/=E6=9C=89=E7=BA=BF=E4=BA=A7=E5=93=81=E7=BB=8F=E8=90=A5=
=E9=83=A8 Standard Preresearch Dept./Wireline Product R&D
> Institute/Wireline Product Operation Division
>
>
>
> E: gregory.mirsky@ztetx.com
> www.zte.com.cn
> Original Mail
> *Sender: *MartinDuke
> *To: *MORTON JR., AL;
> *CC: *ippm-ads@ietf.org;IPPM Chairs;ippm@ietf.org;
> *Date: *2021/08/12 10:49
> *Subject: **Re: [ippm] Proposed changes to default settings in the
> Capacity metric load adjustment algorithm*
> _______________________________________________
> ippm mailing list
> ippm@ietf.org
> https://www.ietf.org/mailman/listinfo/ippm
>
> Hello IPPM,
>
> If you have any comments about this change, please send them to this list
> no later than 24 August.
>
> On Tue, Aug 3, 2021 at 3:01 PM MORTON JR., AL <acmorton@att.com> wrote:
>
>> IPPM,
>>
>> I want to point out that some recent results conducted by others
>> encouraged us to test some additional values for seq error threshold and=
 a
>> wider value range of values for consecutive errored status (during feedb=
ack
>> intervals).  We discovered that we would like to revise the default valu=
es
>> to make the load adjustment a little less-sensitive to
>> non-congestion-related loss and protect the fast ramp-up from ending
>> prematurely. For example, a very short burst of lost packets spanning th=
e
>> boundary between two feedback intervals is currently sufficient to end f=
ast
>> ramp-up.
>>
>> The current table in 8.1 contains:
>> +--------------+-------------+--------------+-----------------------+
>> | Parameter    | Default     | Tested Range | Expected Safe Range   |
>> |              |             | or values    | (not entirely tested, |
>> |              |             |              | other values NOT      |
>> |              |             |              | RECOMMENDED)          |
>> +--------------+-------------+--------------+-----------------------+
>> ...
>> +--------------+-------------+--------------+-----------------------+
>> | sequence     | 0           | 0, 100       | same as tested        |
>> | error        |             |              |                       |
>> | threshold    |             |              |                       |
>> +--------------+-------------+--------------+-----------------------+
>> | consecutive  | 2           | 2            | Use values >1 to      |
>> | errored      |             |              | avoid misinterpreting |
>> | status       |             |              | transient loss        |
>> +--------------+-------------+--------------+-----------------------+
>>
>>
>> The revised table rows would look like this:
>>
>> +--------------+-------------+--------------+-----------------------+
>> | Parameter    | Default     | Tested Range | Expected Safe Range   |
>> |              |             | or values    | (not entirely tested, |
>> |              |             |              | other values NOT      |
>> |              |             |              | RECOMMENDED)          |
>> +--------------+-------------+--------------+-----------------------+
>> ...
>> +--------------+-------------+--------------+-----------------------+
>> | sequence     | 10          | 0,1,5,10,100 | same as tested        |
>> | error        |             |              |                       |
>> | threshold    |             |              |                       |
>> +--------------+-------------+--------------+-----------------------+
>> | consecutive  | 3           | 2,3,4,5      | Use values >1 to      |
>> | errored      |             |              | avoid misinterpreting |
>> | status       |             |              | transient loss        |
>> +--------------+-------------+--------------+-----------------------+
>>
>> Somehow, persistent non-congestion-related loss had mostly eluded our
>> previous tests. But our goal has been to provide default values that wil=
l
>> work in automated testing run by anyone in any implementation or
>> circumstances - not just ~expert users and those who run the udpst utili=
ty.
>>
>> So we'd like to change default values for:
>>
>>   seq error threshold         from 0 to 10
>>   consecutive errored status  from 2 to  3
>>
>> and update our tested range/values column as well.
>>
>> Al
>>
>>
>

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<div dir=3D"ltr"><div>yes, let&#39;s make the change and proceed.</div><div=
><br></div><div>Thanks<br></div></div><br><div class=3D"gmail_quote"><div d=
ir=3D"ltr" class=3D"gmail_attr">On Wed, Aug 25, 2021 at 3:22 PM &lt;<a href=
=3D"mailto:gregory.mirsky@ztetx.com">gregory.mirsky@ztetx.com</a>&gt; wrote=
:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.=
8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><p>Hi, Ma=
rtin et al.,</p><p>my apologies for the late response.</p><p>I&#39;ve revie=
wed the proposed changes in the default values. I agree that these changes =
make the out-of-box capacity measurement less sensitive to an occasional no=
n-congestion-related loss of packets while preserving the algorithm&#39;s f=
ast ramp-up behavior. Clearly, a win-win update. I support it.</p><p style=
=3D"font-size:12px;font-family:sans-serif"><br></p><div><div><div><div><div=
><p style=3D"font-family:=E5=AE=8B=E4=BD=93;font-size:14px;line-height:norm=
al"><span style=3D"color:rgb(88,89,91);font-family:=E5=BE=AE=E8=BD=AF=E9=9B=
=85=E9=BB=91;font-size:14px"><span>Regards,</span></span></p><p style=3D"fo=
nt-family:=E5=AE=8B=E4=BD=93;font-size:14px;line-height:normal"><span style=
=3D"font-size:14px;color:rgb(88,89,91);font-family:=E5=BE=AE=E8=BD=AF=E9=9B=
=85=E9=BB=91"><span id=3D"gmail-m_-3177052566855624053sign_name">Greg Mirsk=
y</span></span></p><p style=3D"font-size:14px;line-height:normal"><span sty=
le=3D"color:rgb(88,89,91);font-family:=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91;=
font-size:14px"><span><span><br></span></span></span></p><p><font face=3D"=
=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91" color=3D"#58595b">Sr. Standardization=
 Expert</font><br><span style=3D"font-family:=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91;font-size:10px;line-height:normal;color:rgb(88,89,91)"><span id=3D"g=
mail-m_-3177052566855624053sign_dept">=E9=A2=84=E7=A0=94=E6=A0=87=E5=87=86=
=E9=83=A8/=E6=9C=89=E7=BA=BF=E7=A0=94=E7=A9=B6=E9=99=A2/=E6=9C=89=E7=BA=BF=
=E4=BA=A7=E5=93=81=E7=BB=8F=E8=90=A5=E9=83=A8</span> <span style=3D"font-fa=
mily:Arial"> <span id=3D"gmail-m_-3177052566855624053sign_dept_eng">Standar=
d Preresearch Dept./Wireline Product R&amp;D Institute/Wireline Product Ope=
ration Division</span></span></span></p><p style=3D"font-size:14px;line-hei=
ght:normal"><span style=3D"color:rgb(88,89,91);font-family:=E5=BE=AE=E8=BD=
=AF=E9=9B=85=E9=BB=91;font-size:14px"><span><span><br></span></span></span>=
</p><p style=3D"font-size:14px;line-height:normal"><span style=3D"color:rgb=
(88,89,91);font-family:=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91;font-size:14px"=
></span></p><table style=3D"color:rgb(0,0,0);font-family:=E5=AE=8B=E4=BD=93=
"><tbody><tr><td width=3D"100" valign=3D"top"><img id=3D"gmail-m_-317705256=
6855624053sign-icon" src=3D"cid:17b893a16bd1bcfd14e2" width=3D"130" height=
=3D"120"></td><td style=3D"word-break:break-all" width=3D"500" valign=3D"to=
p"><img id=3D"gmail-m_-3177052566855624053sign-logo" src=3D"cid:17b893a16bd=
4cea2b4b1" width=3D"115" height=3D"38"><span style=3D"font-size:14px;color:=
rgb(88,89,91);font-family:=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><span style=
=3D"font-family:Arial"><br><span style=3D"color:rgb(0,143,212)">E</span>: <=
span id=3D"gmail-m_-3177052566855624053sign_email"><a href=3D"mailto:gregor=
y.mirsky@ztetx.com" target=3D"_blank">gregory.mirsky@ztetx.com</a></span> <=
br><span style=3D"color:rgb(0,143,212)"><a href=3D"http://www.zte.com.cn/" =
target=3D"_blank">www.zte.com.cn</a></span></span></span></td></tr></tbody>=
</table><span style=3D"line-height:normal;color:rgb(88,89,91);font-size:10p=
x"></span></div></div></div></div></div><div><div style=3D"display:block"><=
div style=3D"width:100%;height:28px;line-height:28px;background-color:rgb(2=
24,229,233);color:rgb(19,136,255);text-align:center">Original Mail</div><di=
v id=3D"gmail-m_-3177052566855624053zwriteHistoryContainer"><div><div style=
=3D"padding:8px;background-color:rgb(245,246,248)"><div><strong>Sender:=C2=
=A0</strong><span>MartinDuke<u></u><u></u></span></div><div><strong>To:=C2=
=A0</strong><span style=3D"display:inline">MORTON JR., AL<u></u>;<u></u></s=
pan></div><div><strong>CC:=C2=A0</strong><span style=3D"display:inline"><a =
href=3D"mailto:ippm-ads@ietf.org" target=3D"_blank">ippm-ads@ietf.org</a><u=
></u>;<u></u></span><span style=3D"display:inline">IPPM Chairs<u></u>;<u></=
u></span><span style=3D"display:inline"><a href=3D"mailto:ippm@ietf.org" ta=
rget=3D"_blank">ippm@ietf.org</a><u></u>;<u></u></span></div><div><strong>D=
ate:=C2=A0</strong><span>2021/08/12 10:49</span></div><div><strong>Subject:=
=C2=A0</strong><span><strong>Re: [ippm] Proposed changes to default setting=
s in the Capacity metric load adjustment algorithm</strong></span></div></d=
iv><div><div>_______________________________________________<br>ippm=C2=A0m=
ailing=C2=A0list<br><a href=3D"mailto:ippm@ietf.org" target=3D"_blank">ippm=
@ietf.org</a><br><a href=3D"https://www.ietf.org/mailman/listinfo/ippm" tar=
get=3D"_blank">https://www.ietf.org/mailman/listinfo/ippm</a><br><br><div d=
ir=3D"ltr"><div>Hello IPPM,</div><br><div>If you have any comments about th=
is change, please send them to this list no later than 24 August.<br></div>=
</div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">=
On Tue, Aug 3, 2021 at 3:01 PM MORTON JR., AL &lt;<a href=3D"mailto:acmorto=
n@att.com" target=3D"_blank">acmorton@att.com</a>&gt; wrote:<br></div><bloc=
kquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:=
1px solid rgb(204,204,204);padding-left:1ex">IPPM,<br> <br> I want to point=
 out that some recent results conducted by others encouraged us to test som=
e additional values for seq error threshold and a wider value range of valu=
es for consecutive errored status (during feedback intervals).=C2=A0 We dis=
covered that we would like to revise the default values to make the load ad=
justment a little less-sensitive to non-congestion-related loss and protect=
 the fast ramp-up from ending prematurely. For example, a very short burst =
of lost packets spanning the boundary between two feedback intervals is cur=
rently sufficient to end fast ramp-up.<br> <br> The current table in 8.1 co=
ntains:<br> +--------------+-------------+--------------+------------------=
-----+<br> | Parameter=C2=A0 =C2=A0 | Default=C2=A0 =C2=A0 =C2=A0| Tested R=
ange | Expected Safe Range=C2=A0 =C2=A0|<br> |=C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 |=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0| or =
values=C2=A0 =C2=A0 | (not entirely tested, |<br> |=C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 | other values NOT=C2=A0 =
=C2=A0 =C2=A0 |<br> |=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 | RECOMMENDED)=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |<br>=
 +--------------+-------------+--------------+-----------------------+<br> =
...<br> +--------------+-------------+--------------+----------------------=
-+<br> | sequence=C2=A0 =C2=A0 =C2=A0| 0=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0| 0, 100=C2=A0 =C2=A0 =C2=A0 =C2=A0| same as tested=C2=A0 =C2=A0 =C2=
=A0 =C2=A0 |<br> | error=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 |=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0|<br> | threshold=C2=A0 =C2=A0 |=C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0|<br> +--------------+-------------+--------------+------------------=
-----+<br> | consecutive=C2=A0 | 2=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
| 2=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 | Use values &gt;1 to=C2=A0 =
=C2=A0 =C2=A0 |<br> | errored=C2=A0 =C2=A0 =C2=A0 |=C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=
 avoid misinterpreting |<br> | status=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 | transient loss=C2=A0 =C2=A0 =C2=A0 =C2=A0 |<br> +----------=
----+-------------+--------------+-----------------------+<br> <br> <br> Th=
e revised table rows would look like this:<br> <br> +--------------+-------=
------+--------------+-----------------------+<br> | Parameter=C2=A0 =C2=A0=
 | Default=C2=A0 =C2=A0 =C2=A0| Tested Range | Expected Safe Range=C2=A0 =
=C2=A0|<br> |=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0| or values=C2=A0 =C2=A0 | (not entir=
ely tested, |<br> |=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 | other values NOT=C2=A0 =C2=A0 =C2=A0 |<br> |=C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 | RECOMMENDE=
D)=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |<br> +--------------+-------------+--=
------------+-----------------------+<br> ...<br> +--------------+---------=
----+--------------+-----------------------+<br> | sequence=C2=A0 =C2=A0 =
=C2=A0| 10=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 | 0,1,5,10,100 | same as teste=
d=C2=A0 =C2=A0 =C2=A0 =C2=A0 |<br> | error=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 |=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|<br> | threshold=C2=A0 =C2=A0 |=C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 |=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0|<br> +--------------+-------------+--------------+=
-----------------------+<br> | consecutive=C2=A0 | 3=C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0| 2,3,4,5=C2=A0 =C2=A0 =C2=A0 | Use values &gt;1 to=C2=
=A0 =C2=A0 =C2=A0 |<br> | errored=C2=A0 =C2=A0 =C2=A0 |=C2=A0 =C2=A0 =C2=A0=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 | avoid misinterpreting |<br> | status=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 | transient loss=C2=A0 =C2=A0 =C2=A0 =C2=A0 |<br> +---=
-----------+-------------+--------------+-----------------------+<br> <br> =
Somehow, persistent non-congestion-related loss had mostly eluded our previ=
ous tests. But our goal has been to provide default values that will work i=
n automated testing run by anyone in any implementation or circumstances - =
not just ~expert users and those who run the udpst utility.<br> <br> So we&=
#39;d like to change default values for:<br> <br> =C2=A0 seq error threshol=
d=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0from 0 to 10<br> =C2=A0 consecutive erro=
red status=C2=A0 from 2 to=C2=A0 3<br> <br> and update our tested range/val=
ues column as well.<br> <br> Al<br> <br> </blockquote></div></div></div></d=
iv></div></div></div><p><br></p></div></blockquote></div>

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From nobody Fri Aug 27 13:34:18 2021
Return-Path: <iesg-secretary@ietf.org>
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To: Martin Duke <martin.h.duke@gmail.com>, Greg Mirsky <gregory.mirsky@ztetx.com>
CC: "ippm-ads@ietf.org" <ippm-ads@ietf.org>, IPPM Chairs <ippm-chairs@ietf.org>, IETF IPPM WG <ippm@ietf.org>
Thread-Topic: [ippm] Proposed changes to default settings in the Capacity metric load adjustment algorithm
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ippm/GaZGyz-owBdP2fSoVgnFYMDgSRQ>
Subject: Re: [ippm] Proposed changes to default settings in the Capacity metric load adjustment algorithm
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From: Martin Duke <martin.h.duke@gmail.com>
Date: Fri, 27 Aug 2021 13:37:08 -0700
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To: Giuseppe Fioccola <giuseppe.fioccola@huawei.com>
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Subject: Re: [ippm] RFC 8321 and 8889
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Hi all,

Thanks for all the feedback.

I have launched an IETF last call for the status change:
https://datatracker.ietf.org/doc/status-change-rfc8321-rfc8889-alt-mark-to-=
ps/

As this call continues, it would be worthwhile for someone to inventory
8321 (and especially 8889) to see if there are any pieces that ought not to
progress. We already have a volunteer to shepherd a bis document for either
document, if need be.

Martin


On Tue, Aug 24, 2021 at 1:36 AM Giuseppe Fioccola <
giuseppe.fioccola@huawei.com> wrote:

> Hi Martin,
>
> In RFC 8321 there are only two alternatives in relation to the number of
> bits: single marking and double marking. And both are implemented.
>
> As author of RFC 8321, I think that it can be simply elevated as is to PS
> by slightly revising or by omitting some text that refers to the experime=
nt
> already done (e.g. section 5).
>
>
>
> Regards,
>
>
>
> Giuseppe
>
>
>
> *From:* ippm <ippm-bounces@ietf.org> *On Behalf Of * Martin Duke
> *Sent:* Monday, August 23, 2021 9:34 PM
> *To:* MORTON JR., AL <acmorton@att.com>
> *Cc:* Ran Pang(=E8=81=94=E9=80=9A=E9=9B=86=E5=9B=A2=E4=B8=AD=E5=9B=BD=E8=
=81=94=E9=80=9A=E7=A0=94=E7=A9=B6=E9=99=A2-=E6=9C=AC=E9=83=A8) <pangran@chi=
naunicom.cn>; IETF IPPM WG <
> ippm@ietf.org>
> *Subject:* Re: [ippm] RFC 8321 and 8889
>
>
>
> Hi Al, this is my impression as well. In a perfect world I would ask the
> WG to do a bis draft to inventory what is mature and to deprecate the bit=
s
> that haven't seen real deployment. If it turns out that it's all deployed=
,
> then we could do a simpler document action.
>
>
>
> Is this work that anyone is interested in taking on?
>
>
>
> On Fri, Aug 20, 2021 at 9:41 AM MORTON JR., AL <acmorton@att.com> wrote:
>
> Hi Martin,
>
>
>
> While I don=E2=80=99t have a serious concern, I=E2=80=99d prefer to eleva=
te the parts of
> 8321 that **were implemented** to PS.  I think I read that some parts
> were not implemented and I look to those who reported on their
> implementations to say what they did.
>
>
>
> This thinning-out of non-implemented capabilities was a feature of
> Standards Track Advancement processes in the past, so it makes sense to
> apply it here as well.  I realize this means a new draft, but the
> processing could be accelerated to match the need.
>
>
>
> If the entire RFC 8321 was implemented, then this point is a non-issue.
>
>
>
> hope this helps,
>
> Al
>
>
>
> *From:* ippm <ippm-bounces@ietf.org> *On Behalf Of *Martin Duke
> *Sent:* Friday, August 20, 2021 12:31 PM
> *To:* Ran Pang(=E8=81=94=E9=80=9A=E9=9B=86=E5=9B=A2=E4=B8=AD=E5=9B=BD=E8=
=81=94=E9=80=9A=E7=A0=94=E7=A9=B6=E9=99=A2-=E6=9C=AC=E9=83=A8) <pangran@chi=
naunicom.cn>
> *Cc:* IETF IPPM WG <ippm@ietf.org>
> *Subject:* Re: [ippm] RFC 8321 and 8889
>
>
>
> Thanks all,
>
>
>
> I'm hearing strong consensus that 8321 should be a PS and somewhat weaker
> support for 8889, but no dissents.
>
>
>
> If anyone has serious concerns, this would be a good time to say so.
>
>
>
> On Fri, Aug 20, 2021 at 3:02 AM Ran Pang(=E8=81=94=E9=80=9A=E9=9B=86=E5=
=9B=A2=E4=B8=AD=E5=9B=BD=E8=81=94=E9=80=9A=E7=A0=94=E7=A9=B6=E9=99=A2-=E6=
=9C=AC=E9=83=A8) <
> pangran@chinaunicom.cn> wrote:
>
> Hi Martin and WG,
>
>
>
> The alt-mk described in RFC8321/8889 has been deployed in some of our
> networks.
>
> It works well.
>
> So I would like the WG consider elevate them to proposed standard.
>
>
>
> Best regards,
>
> Pang Ran.
>
>
>
> *From:* Martin Duke <martin.h.duke@gmail.com>
>
> *Date:* 2021-08-13 02:26
>
> *To:* IETF IPPM WG <ippm@ietf.org>
>
> *Subject:* [ippm] RFC 8321 and 8889
>
> Hello IPPM,
>
>
>
> (with AD hat on)
>
>
>
> The IESG is currently considering
>
> https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-08
> <https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draft-i=
etf-6man-ipv6-alt-mark-08__;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ=
1jJwmHnx-jiXCBYQM6IB$>
>
> which is the implementation of RFC 8321
> <https://urldefense.com/v3/__https:/www.rfc-editor.org/rfc/rfc8321.html__=
;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmHnx-jiXCEt7L0EO$>
> and 8889
> <https://urldefense.com/v3/__https:/www.rfc-editor.org/rfc/rfc8889.html__=
;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmHnx-jiXCD5jrkAO$>
> techniques in an IPv6 framework. IIUC, this is very much how things are
> "supposed to work" -- measurement definitions and methodology are done by
> IPPM, and the protocol-specific instantiations are in the respective
> working groups.
>
>
>
> However, there are complications in that 8321 and 8889 are Experimental
> RFCs, and the ipv6-alt-mark draft is a Proposed Standard. This has result=
ed
> in text from 8321/8889 going into ipv6-alt-mark so that it can be elevate=
d
> to PS. I'm told that, if the status quo holds, other drafts will referenc=
e
> ipv6-alt-mark to avoid a downref. This seems suboptimal.
>
>
>
> I would prefer that *we take one of the two following actions*:
>
> 1) If the WG has consensus that we are comfortable that there is enough
> experience with 8321 and/or 8889 to elevate them to PS, I can initiate a
> document action to change their status.
>
>
>
> 2) If there is no such consensus, ipv6-alt-mark should be Experimental.
>
>
>
> In either case, the draft can probably lose some of the duplicate text.
>
>
>
> Logically, there is a third option -- that the bits of the RFCs copied in
> the draft are mature enough to be a standard, but that the others aren't.
> Though I'm not an expert, I doubt this is the case. But if people believe
> it to be true, we'll have to come up with new options.
>
>
>
> I would be grateful for the working group's thoughts about these document=
s
> and the ideas therein. Is it reasonable for people to read and reflect on
> this by 26 August (2 weeks from today?)
>
>
>
> Thanks,
>
> Martin
>
> =E5=A6=82=E6=9E=9C=E6=82=A8=E9=94=99=E8=AF=AF=E6=8E=A5=E6=94=B6=E4=BA=86=
=E8=AF=A5=E9=82=AE=E4=BB=B6=EF=BC=8C=E8=AF=B7=E9=80=9A=E8=BF=87=E7=94=B5=E5=
=AD=90=E9=82=AE=E4=BB=B6=E7=AB=8B=E5=8D=B3=E9=80=9A=E7=9F=A5=E6=88=91=E4=BB=
=AC=E3=80=82=E8=AF=B7=E5=9B=9E=E5=A4=8D=E9=82=AE=E4=BB=B6=E5=88=B0 hqs-spmc=
@chinaunicom.cn=EF=BC=8C=E5=8D=B3=E5=8F=AF=E4=BB=A5=E9=80=80
> =E8=AE=A2=E6=AD=A4=E9=82=AE=E4=BB=B6=E3=80=82=E6=88=91=E4=BB=AC=E5=B0=86=
=E7=AB=8B=E5=8D=B3=E5=B0=86=E6=82=A8=E7=9A=84=E4=BF=A1=E6=81=AF=E4=BB=8E=E6=
=88=91=E4=BB=AC=E7=9A=84=E5=8F=91=E9=80=81=E7=9B=AE=E5=BD=95=E4=B8=AD=E5=88=
=A0=E9=99=A4=E3=80=82 If you have received this email in error
> please notify us immediately by e-mail. Please reply to
> hqs-spmc@chinaunicom.cn ,you can unsubscribe from this mail. We will
> immediately remove your information from send catalogue of our.
>
>

--0000000000002b9cb405ca9073a0
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Hi all,</div><div><br></div><div>Thanks for all the f=
eedback.</div><div><br></div><div>I have launched an IETF last call for the=
 status change:</div><div><a href=3D"https://datatracker.ietf.org/doc/statu=
s-change-rfc8321-rfc8889-alt-mark-to-ps/">https://datatracker.ietf.org/doc/=
status-change-rfc8321-rfc8889-alt-mark-to-ps/</a></div><div><br></div><div>=
As this call continues, it would be worthwhile for someone to inventory 832=
1 (and especially 8889) to see if there are any pieces that ought not to pr=
ogress. We already have a volunteer to shepherd a bis document for either d=
ocument, if need be.</div><div><br></div><div>Martin<br></div><div><br></di=
v></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr=
">On Tue, Aug 24, 2021 at 1:36 AM Giuseppe Fioccola &lt;<a href=3D"mailto:g=
iuseppe.fioccola@huawei.com">giuseppe.fioccola@huawei.com</a>&gt; wrote:<br=
></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;=
border-left:1px solid rgb(204,204,204);padding-left:1ex">





<div lang=3D"EN-US">
<div class=3D"gmail-m_-4185326746534603187WordSection1">
<p class=3D"MsoNormal">Hi Martin,<u></u><u></u></p>
<p class=3D"MsoNormal">In RFC 8321 there are only two alternatives in relat=
ion to the number of bits: single marking and double marking. And both are =
implemented.<u></u><u></u></p>
<p class=3D"MsoNormal">As author of RFC 8321, I think that it can be simply=
 elevated as is to PS by slightly revising or by omitting some text that re=
fers to the experiment already done (e.g. section 5).<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Regards,<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Giuseppe<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><b>From:</b> ippm &lt;<a href=3D"mailto:ippm-bounces=
@ietf.org" target=3D"_blank">ippm-bounces@ietf.org</a>&gt; <b>On Behalf Of =
</b>
Martin Duke<br>
<b>Sent:</b> Monday, August 23, 2021 9:34 PM<br>
<b>To:</b> MORTON JR., AL &lt;<a href=3D"mailto:acmorton@att.com" target=3D=
"_blank">acmorton@att.com</a>&gt;<br>
<b>Cc:</b> Ran Pang(<span style=3D"font-family:&quot;Microsoft YaHei&quot;,=
sans-serif" lang=3D"ZH-CN">=E8=81=94=E9=80=9A=E9=9B=86=E5=9B=A2=E4=B8=AD=E5=
=9B=BD=E8=81=94=E9=80=9A=E7=A0=94=E7=A9=B6=E9=99=A2</span>-<span style=3D"f=
ont-family:&quot;Microsoft YaHei&quot;,sans-serif" lang=3D"ZH-CN">=E6=9C=AC=
=E9=83=A8</span>) &lt;<a href=3D"mailto:pangran@chinaunicom.cn" target=3D"_=
blank">pangran@chinaunicom.cn</a>&gt;; IETF IPPM WG &lt;<a href=3D"mailto:i=
ppm@ietf.org" target=3D"_blank">ippm@ietf.org</a>&gt;<br>
<b>Subject:</b> Re: [ippm] RFC 8321 and 8889<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div>
<p class=3D"MsoNormal">Hi Al, this is my impression as well. In a perfect w=
orld I would ask the WG to do a bis draft to inventory what is mature and t=
o deprecate the bits that haven&#39;t seen real deployment. If it turns out=
 that it&#39;s all deployed, then we could
 do a simpler document action.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Is this work that anyone is interested in taking on?=
<u></u><u></u></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div>
<p class=3D"MsoNormal">On Fri, Aug 20, 2021 at 9:41 AM MORTON JR., AL &lt;<=
a href=3D"mailto:acmorton@att.com" target=3D"_blank">acmorton@att.com</a>&g=
t; wrote:<u></u><u></u></p>
</div>
<blockquote style=3D"border-color:currentcolor currentcolor currentcolor rg=
b(204,204,204);border-style:none none none solid;border-width:medium medium=
 medium 1pt;padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
Hi Martin,</span><u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
=C2=A0</span><u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
While I don=E2=80=99t have a serious concern, I=E2=80=99d prefer to elevate=
 the parts of 8321 that *<b>were implemented</b>* to PS.=C2=A0 I think I re=
ad that
 some parts were not implemented and I look to those who reported on their =
implementations to say what they did.</span><u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
=C2=A0</span><u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
This thinning-out of non-implemented capabilities was a feature of Standard=
s Track Advancement processes in the past, so it makes sense to
 apply it here as well.=C2=A0 I realize this means a new draft, but the pro=
cessing could be accelerated to match the need.</span><u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
=C2=A0</span><u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
If the entire RFC 8321 was implemented, then this point is a non-issue.</sp=
an><u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
=C2=A0</span><u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
hope this helps,</span><u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
Al</span><u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-family:&quot;Courier New&quot;">=
=C2=A0</span><u></u><u></u></p>
<div style=3D"border-style:none none none solid;border-width:medium medium =
medium 1.5pt;padding:0in 0in 0in 4pt;border-color:currentcolor currentcolor=
 currentcolor blue">
<div>
<div style=3D"border-style:solid none none;border-width:1pt medium medium;p=
adding:3pt 0in 0in;border-color:currentcolor">
<p class=3D"MsoNormal"><b>From:</b> ippm &lt;<a href=3D"mailto:ippm-bounces=
@ietf.org" target=3D"_blank">ippm-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b>Martin Duke<br>
<b>Sent:</b> Friday, August 20, 2021 12:31 PM<br>
<b>To:</b> Ran Pang(<span style=3D"font-family:&quot;Microsoft JhengHei&quo=
t;,sans-serif" lang=3D"ZH-CN">=E8=81=94=E9=80=9A=E9=9B=86=E5=9B=A2=E4=B8=AD=
=E5=9B=BD=E8=81=94=E9=80=9A=E7=A0=94=E7=A9=B6=E9=99=A2</span>-<span style=
=3D"font-family:&quot;MS Gothic&quot;" lang=3D"ZH-CN">=E6=9C=AC=E9=83=A8</s=
pan>) &lt;<a href=3D"mailto:pangran@chinaunicom.cn" target=3D"_blank">pangr=
an@chinaunicom.cn</a>&gt;<br>
<b>Cc:</b> IETF IPPM WG &lt;<a href=3D"mailto:ippm@ietf.org" target=3D"_bla=
nk">ippm@ietf.org</a>&gt;<br>
<b>Subject:</b> Re: [ippm] RFC 8321 and 8889<u></u><u></u></p>
</div>
</div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
Thanks all,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
I&#39;m hearing strong consensus that 8321 should be a PS and somewhat weak=
er support for 8889, but no dissents.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
If anyone has serious concerns, this would be a good time to say so.<u></u>=
<u></u></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
On Fri, Aug 20, 2021 at 3:02 AM Ran Pang(<span style=3D"font-family:&quot;M=
icrosoft JhengHei&quot;,sans-serif" lang=3D"ZH-CN">=E8=81=94=E9=80=9A=E9=9B=
=86=E5=9B=A2=E4=B8=AD=E5=9B=BD=E8=81=94=E9=80=9A=E7=A0=94=E7=A9=B6=E9=99=A2=
</span>-<span style=3D"font-family:&quot;MS Gothic&quot;" lang=3D"ZH-CN">=
=E6=9C=AC=E9=83=A8</span>) &lt;<a href=3D"mailto:pangran@chinaunicom.cn" ta=
rget=3D"_blank">pangran@chinaunicom.cn</a>&gt;
 wrote:<u></u><u></u></p>
</div>
<blockquote style=3D"border-style:none none none solid;border-width:medium =
medium medium 1pt;padding:0in 0in 0in 6pt;margin:5pt 0in 5pt 4.8pt;border-c=
olor:currentcolor currentcolor currentcolor rgb(204,204,204)">
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
Hi Martin and WG,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">The alt-mk described in RFC8321/8889 has been deploy=
ed in some of our networks.<u></u><u></u></p>
<p class=3D"MsoNormal">It works well.<u></u><u></u></p>
<p class=3D"MsoNormal">So I would like the WG consider elevate them to prop=
osed standard.<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
Best regards,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
Pang Ran.<u></u><u></u></p>
</div>
</div>
<blockquote style=3D"margin-left:6pt;margin-top:5pt;margin-bottom:5pt;margi=
n-right:inherit">
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
</div>
<div style=3D"border-style:solid none none;border-width:1pt medium medium;p=
adding:3pt 0in 0in;border-color:currentcolor">
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%;background:rgb(239,239,239=
) none repeat scroll 0% 0%">
<b><span style=3D"font-size:9pt;line-height:111%;font-family:&quot;Tahoma&q=
uot;,sans-serif;color:black">From:</span></b><span style=3D"font-size:9pt;l=
ine-height:111%;font-family:&quot;Tahoma&quot;,sans-serif;color:black">=C2=
=A0<a href=3D"mailto:martin.h.duke@gmail.com" target=3D"_blank">Martin
 Duke</a></span><u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%;background:rgb(239,239,239=
) none repeat scroll 0% 0%">
<b><span style=3D"font-size:9pt;line-height:111%;font-family:&quot;Tahoma&q=
uot;,sans-serif;color:black">Date:</span></b><span style=3D"font-size:9pt;l=
ine-height:111%;font-family:&quot;Tahoma&quot;,sans-serif;color:black">=C2=
=A02021-08-13=C2=A002:26</span><u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%;background:rgb(239,239,239=
) none repeat scroll 0% 0%">
<b><span style=3D"font-size:9pt;line-height:111%;font-family:&quot;Tahoma&q=
uot;,sans-serif;color:black">To:</span></b><span style=3D"font-size:9pt;lin=
e-height:111%;font-family:&quot;Tahoma&quot;,sans-serif;color:black">=C2=A0=
<a href=3D"mailto:ippm@ietf.org" target=3D"_blank">IETF IPPM
 WG</a></span><u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%;background:rgb(239,239,239=
) none repeat scroll 0% 0%">
<b><span style=3D"font-size:9pt;line-height:111%;font-family:&quot;Tahoma&q=
uot;,sans-serif;color:black">Subject:</span></b><span style=3D"font-size:9p=
t;line-height:111%;font-family:&quot;Tahoma&quot;,sans-serif;color:black">=
=C2=A0[ippm] RFC 8321 and 8889</span><u></u><u></u></p>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
Hello IPPM,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
(with AD hat on)<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
The IESG is currently considering<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
<a href=3D"https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html=
/draft-ietf-6man-ipv6-alt-mark-08__;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B=
1gLCAqMQ1jJwmHnx-jiXCBYQM6IB$" target=3D"_blank">https://datatracker.ietf.o=
rg/doc/html/draft-ietf-6man-ipv6-alt-mark-08</a><u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
which is the implementation of RFC <a href=3D"https://urldefense.com/v3/__h=
ttps:/www.rfc-editor.org/rfc/rfc8321.html__;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0h=
ps2MsV_B1gLCAqMQ1jJwmHnx-jiXCEt7L0EO$" target=3D"_blank">
8321</a> and <a href=3D"https://urldefense.com/v3/__https:/www.rfc-editor.o=
rg/rfc/rfc8889.html__;!!BhdT!04s1Z7EtCnJrifRI3dUP1d0hps2MsV_B1gLCAqMQ1jJwmH=
nx-jiXCD5jrkAO$" target=3D"_blank">
8889</a> techniques in an IPv6 framework. IIUC, this is very much how thing=
s are &quot;supposed to work&quot; -- measurement definitions and methodolo=
gy are done by IPPM, and the protocol-specific instantiations are in the re=
spective working groups.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
However, there are complications in that 8321 and 8889 are Experimental RFC=
s, and the ipv6-alt-mark draft is a Proposed Standard. This has resulted in=
 text from 8321/8889 going into ipv6-alt-mark so that it can be elevated to=
 PS. I&#39;m told that, if the status
 quo holds, other drafts will reference ipv6-alt-mark to avoid a downref. T=
his seems suboptimal.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
I would prefer that <b>we take one of the two following actions</b>:<u></u>=
<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
1) If the WG has consensus that we are comfortable that there is enough exp=
erience with 8321 and/or 8889 to elevate them to PS, I can initiate a docum=
ent action to change their status.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
2) If there is no such consensus, ipv6-alt-mark should be Experimental.<u><=
/u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
In either case, the draft can probably lose some of the duplicate text.<u><=
/u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
Logically, there is a third option -- that the bits of the RFCs copied in t=
he draft are mature enough to be a standard, but that the others aren&#39;t=
. Though I&#39;m not an expert, I doubt this is the case. But if people bel=
ieve it to be true, we&#39;ll have to come up
 with new options.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
I would be grateful for the working group&#39;s thoughts about these docume=
nts and the ideas therein. Is it reasonable for people to read and reflect =
on this by 26 August (2 weeks from today?)<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
Thanks,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"line-height:111%">
Martin<u></u><u></u></p>
</div>
</div>
</div>
</div>
</blockquote>
<p class=3D"MsoNormal" style=3D"line-height:111%">
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</blockquote>
</div>
</div>
</div>

</blockquote></div>

--0000000000002b9cb405ca9073a0--


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From: Giuseppe Fioccola <giuseppe.fioccola@huawei.com>
To: Martin Duke <martin.h.duke@gmail.com>
CC: "MORTON JR., AL" <acmorton@att.com>, =?utf-8?B?UmFuIFBhbmco6IGU6YCa6ZuG5Zui5Lit5Zu96IGU6YCa56CU56m26ZmiLQ==?= =?utf-8?B?5pys6YOoKQ==?= <pangran@chinaunicom.cn>, IETF IPPM WG <ippm@ietf.org>, Erik Kline <ek.ietf@gmail.com>
Thread-Topic: [ippm] RFC 8321 and 8889
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From: "MORTON JR., AL" <acmorton@att.com>
To: Giuseppe Fioccola <giuseppe.fioccola@huawei.com>, Martin Duke <martin.h.duke@gmail.com>
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Subject: Re: [ippm] RFC 8321 and 8889
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From nobody Sat Aug 28 22:26:06 2021
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Subject: [ippm] I-D Action: draft-ietf-ippm-ioam-flags-06.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 Measurement WG of the IETF.

        Title           : In-situ OAM Loopback and Active Flags
        Authors         : Tal Mizrahi
                          Frank Brockners
                          Shwetha Bhandari
                          Ramesh Sivakolundu
                          Carlos Pignataro
                          Aviv Kfir
                          Barak Gafni
                          Mickey Spiegel
                          Jennifer Lemon
	Filename        : draft-ietf-ippm-ioam-flags-06.txt
	Pages           : 13
	Date            : 2021-08-28

Abstract:
   In-situ Operations, Administration, and Maintenance (IOAM) records
   operational and telemetry information in packets while they traverse
   a path between two points in the network.  This document defines two
   new flags in the IOAM Trace Option headers, specifically the the
   Loopback and Active flags.


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

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-flags-06

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ippm-ioam-flags-06


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



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From: Tal Mizrahi <tal.mizrahi.phd@gmail.com>
Date: Sun, 29 Aug 2021 08:28:09 +0300
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Subject: Re: [ippm] New Version Notification for draft-ietf-ippm-ioam-flags-06.txt
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Hi,

Version 06 includes a few editorial updates that were suggested by Tommy.

Cheers,
Tal.

On Sun, Aug 29, 2021 at 8:25 AM <internet-drafts@ietf.org> wrote:

>
> A new version of I-D, draft-ietf-ippm-ioam-flags-06.txt
> has been successfully submitted by Tal Mizrahi and posted to the
> IETF repository.
>
> Name:           draft-ietf-ippm-ioam-flags
> Revision:       06
> Title:          In-situ OAM Loopback and Active Flags
> Document date:  2021-08-28
> Group:          ippm
> Pages:          13
> URL:
> https://www.ietf.org/archive/id/draft-ietf-ippm-ioam-flags-06.txt
> Status:
> https://datatracker.ietf.org/doc/draft-ietf-ippm-ioam-flags/
> Htmlized:
> https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-flags
> Diff:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-ippm-ioam-flags-06
>
> Abstract:
>    In-situ Operations, Administration, and Maintenance (IOAM) records
>    operational and telemetry information in packets while they traverse
>    a path between two points in the network.  This document defines two
>    new flags in the IOAM Trace Option headers, specifically the the
>    Loopback and Active flags.
>
>
>
>
> The IETF Secretariat
>
>
>

--0000000000000e435e05caabfc40
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<div dir=3D"ltr"><div>Hi,</div><div><br></div><div>Version 06 includes a fe=
w editorial updates that were suggested by Tommy.</div><div><br></div><div>=
Cheers,</div><div>Tal.</div><br><div class=3D"gmail_quote"><div dir=3D"ltr"=
 class=3D"gmail_attr">On Sun, Aug 29, 2021 at 8:25 AM &lt;<a href=3D"mailto=
:internet-drafts@ietf.org">internet-drafts@ietf.org</a>&gt; wrote:<br></div=
><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border=
-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
A new version of I-D, draft-ietf-ippm-ioam-flags-06.txt<br>
has been successfully submitted by Tal Mizrahi and posted to the<br>
IETF repository.<br>
<br>
Name:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0draft-ietf-ippm-ioam-flags<br=
>
Revision:=C2=A0 =C2=A0 =C2=A0 =C2=A006<br>
Title:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 In-situ OAM Loopback and Active Fl=
ags<br>
Document date:=C2=A0 2021-08-28<br>
Group:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ippm<br>
Pages:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 13<br>
URL:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 <a href=3D"https://www.ietf.o=
rg/archive/id/draft-ietf-ippm-ioam-flags-06.txt" rel=3D"noreferrer" target=
=3D"_blank">https://www.ietf.org/archive/id/draft-ietf-ippm-ioam-flags-06.t=
xt</a><br>
Status:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<a href=3D"https://datatracker.iet=
f.org/doc/draft-ietf-ippm-ioam-flags/" rel=3D"noreferrer" target=3D"_blank"=
>https://datatracker.ietf.org/doc/draft-ietf-ippm-ioam-flags/</a><br>
Htmlized:=C2=A0 =C2=A0 =C2=A0 =C2=A0<a href=3D"https://datatracker.ietf.org=
/doc/html/draft-ietf-ippm-ioam-flags" rel=3D"noreferrer" target=3D"_blank">=
https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-flags</a><br>
Diff:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<a href=3D"https://www.ietf.o=
rg/rfcdiff?url2=3Ddraft-ietf-ippm-ioam-flags-06" rel=3D"noreferrer" target=
=3D"_blank">https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-ippm-ioam-flags-=
06</a><br>
<br>
Abstract:<br>
=C2=A0 =C2=A0In-situ Operations, Administration, and Maintenance (IOAM) rec=
ords<br>
=C2=A0 =C2=A0operational and telemetry information in packets while they tr=
averse<br>
=C2=A0 =C2=A0a path between two points in the network.=C2=A0 This document =
defines two<br>
=C2=A0 =C2=A0new flags in the IOAM Trace Option headers, specifically the t=
he<br>
=C2=A0 =C2=A0Loopback and Active flags.<br>
<br>
<br>
<br>
<br>
The IETF Secretariat<br>
<br>
<br>
</blockquote></div></div>

--0000000000000e435e05caabfc40--


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From: Tommy Pauly <tpauly@apple.com>
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Subject: [ippm] WGLC for IOAM Flags and Direct Exports
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--Apple-Mail=_F5EAD5BE-475D-455C-B391-D2473AC6C334
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Hello IPPM,

This email starts a Working Group Last Call on two related IOAM =
documents, draft-ietf-ippm-ioam-flags and =
draft-ietf-ippm-ioam-direct-export.

In-situ OAM Loopback and Active Flags
https://datatracker.ietf.org/doc/draft-ietf-ippm-ioam-flags/ =
<https://datatracker.ietf.org/doc/draft-ietf-ippm-ioam-flags/>
https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-flags-06 =
<https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-flags-06>

In-situ OAM Direct Exporting
https://datatracker.ietf.org/doc/draft-ietf-ippm-ioam-direct-export/ =
<https://datatracker.ietf.org/doc/draft-ietf-ippm-ioam-direct-export/>
=
https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-direct-export-0=
6 =
<https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-direct-export-=
06>

Please provide feedback by replying to this email with your reviews and =
if you think these documents are ready to progress, by Wednesday, =
September 15.

Best,
Tommy & Ian


--Apple-Mail=_F5EAD5BE-475D-455C-B391-D2473AC6C334
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	charset=us-ascii

<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; line-break: after-white-space;" class=3D""><div =
class=3D"">Hello IPPM,</div><div class=3D""><br class=3D""></div><div =
class=3D"">This email starts a Working Group Last Call on two related =
IOAM documents,&nbsp;draft-ietf-ippm-ioam-flags =
and&nbsp;draft-ietf-ippm-ioam-direct-export.</div><div class=3D""><br =
class=3D""></div><div class=3D"">In-situ OAM Loopback and Active =
Flags</div><a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-ippm-ioam-flags/" =
class=3D"">https://datatracker.ietf.org/doc/draft-ietf-ippm-ioam-flags/</a=
><div class=3D""><a =
href=3D"https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-flags-0=
6" =
class=3D"">https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-flag=
s-06</a></div><div class=3D""><div class=3D""><br class=3D""></div><div =
class=3D"">In-situ OAM Direct Exporting</div><div class=3D""><a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-ippm-ioam-direct-expor=
t/" =
class=3D"">https://datatracker.ietf.org/doc/draft-ietf-ippm-ioam-direct-ex=
port/</a></div><div class=3D""><a =
href=3D"https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-direct-=
export-06" =
class=3D"">https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-dire=
ct-export-06</a></div><div class=3D""><br class=3D""></div><div =
class=3D"">Please provide feedback by replying to this email with your =
reviews and if you think these documents are ready to progress, by <b =
class=3D"">Wednesday, September 15</b>.</div><div class=3D""><br =
class=3D""></div><div class=3D"">Best,</div><div class=3D"">Tommy &amp; =
Ian</div><div class=3D""><br class=3D""></div></div></body></html>=

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