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From: "Scharf, Michael" <Michael.Scharf@hs-esslingen.de>
To: "tcpm@ietf.org" <tcpm@ietf.org>
Thread-Topic: Co-chair e-mail address change
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Date: Sat, 1 Sep 2018 08:10:38 +0000
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Hi all,

My affiliation has changed to Hochschule Esslingen, which is a University o=
f Applied Sciences close to Stuttgart. I will in future use the e-mail addr=
ess

  michael.scharf@hs-esslingen.de

in TCPM. The e-mail aliases (such as tcpm-chairs@ietf.org) have already bee=
n updated.

This may be a good opportunity to say thanks to Alcatel-Lucent and Nokia fo=
r sponsoring my trips to IETF Meetings in the last years, even though TCPM =
has been very far away from my day job.

Thanks a lot

Michael

--_000_6EC6417807D9754DA64F3087E2E2E03E16BCD3EArznt8114rzntrzd_
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<html dir=3D"ltr">
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1">
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10pt;">
<div>Hi all,</div>
<div><br>
</div>
<div>My affiliation has changed to Hochschule Esslingen, which is a Univers=
ity of Applied Sciences close to Stuttgart. I will in future use the e-mail=
 address</div>
<div><br>
</div>
<div>&nbsp; michael.scharf@hs-esslingen.de</div>
<div><br>
</div>
<div>in TCPM. The e-mail aliases (such as tcpm-chairs@ietf.org) have alread=
y been updated.</div>
<div><br>
</div>
<div>This may be a good opportunity to say thanks to Alcatel-Lucent and Nok=
ia for sponsoring my trips to IETF Meetings in the last years, even though =
TCPM has been very far away from my day job.</div>
<div><br>
</div>
<div>Thanks a lot</div>
<div><br>
</div>
<div>Michael</div>
</div>
</body>
</html>

--_000_6EC6417807D9754DA64F3087E2E2E03E16BCD3EArznt8114rzntrzd_--


From nobody Wed Sep  5 08:53:07 2018
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To: Joe Touch <touch@strayalpha.com>, Ignacio Goyret <ignacio.goyret@nokia.com>
Cc: mankin@psg.com, rbonica@juniper.net, touch@isi.edu, tcpm@ietf.org, ietf@kuehlewind.net, spencerdawkins.ietf@gmail.com, tuexen@fh-muenster.de, RFC Errata System <rfc-editor@rfc-editor.org>
References: <20180503203252.D2005B82AA4@rfc-editor.org> <fcbc3182691fb2d763d4966b79a48591@strayalpha.com> <201805040027.w440R3ji011041@cliff.eng.ascend.com> <f210b12a-ca8d-4323-05b2-193cceb88669@strayalpha.com>
From: =?UTF-8?Q?Mirja_K=c3=bchlewind?= <mirja.kuehlewind@tik.ee.ethz.ch>
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Subject: Re: [tcpm] [Editorial Errata Reported] RFC5925 (5347)
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Hi Joe, hi Ignacio,

is this something that I should set in the "Hold for Update" state?

Mirja



On 04.05.2018 03:54, Joe Touch wrote:
> 
> 
> On 5/3/2018 5:20 PM, Ignacio Goyret wrote:
>> The reason for the errata is because it happened: someone read
>> that text and interpreted that the tcp checksum would only need
>> to be cleared when only the TCP-AO option was included because the
>> text stated "when included, only the TCP-AO MAC field is zeroed".
>> Your suggested text addition does not address this incorrect
>> interpretation.
> It actually does directly, with this phrase: "within those options".
> 
>> I also encountered someone that insisted that when only the TCP-AO
>> option was included, that it was only the option data, not its header.
> That is already addressed in the existing text directly here:
> 
>    "When TCP options are not included, all TCP options except for TCP-
>    AO are omitted from MAC processing."
> 
> 
>> That's why a reference to section 2.2 sounds reasonable to me.
> Adding the reference might be useful, but should not be strictly
> necessary to interpret the existing text.
> 
>> IMO, this is *exactly* the reason for an "editorial" errata.
>> Technical details are not altered, just language clarifications
>> to promote interoperability. I am not suggesting rewriting this or
>> any other RFC.
> There are many RFCs that have been misinterpreted. That doesn't always
> warrant suggested alternate text.
> 
> Joe
> 
>>
>> -Ignacio
>>
>>
>> At 14:38 5/3/2018, Joe Touch wrote:
>>
>>> I do not agree that this is suggested text represents a clarification.
>>>
>>> At best, only the one sentence warrants clarification:
>>>
>>> From: When included, only the TCP-AO MAC field is zeroed.
>>>
>>> To: When TCP options are included, within those options only the TCP-AO MAC field is zeroed.
>>>
>>>
>>> However, that context is implicit in the existing text. Yes, we could completely rewrite every RFC to be more clear, but that is not the purpose of errata nor is it productive, IMO.
>>>
>>> Joe
>>>
>>> On 2018-05-03 16:32, RFC Errata System wrote:
>>>> The following errata report has been submitted for RFC5925,
>>>> "The TCP Authentication Option".
>>>>
>>>> --------------------------------------
>>>> You may review the report below and at:
>>>> <http://www.rfc-editor.org/errata/eid5347>http://www.rfc-editor.org/errata/eid5347
>>>>
>>>> --------------------------------------
>>>> Type: Editorial
>>>> Reported by: Ignacio Goyret <<mailto:ignacio.goyret@nokia.com>ignacio.goyret@nokia.com>
>>>>
>>>> Section: 5.1
>>>>
>>>> Original Text
>>>> -------------
>>>> 3. The TCP header, by default including options, and where the TCP
>>>>    checksum and TCP-AO MAC fields are set to zero, all in network-
>>>>    byte order.
>>>>
>>>>    The TCP option flag of the MKT indicates whether the TCP options
>>>>    are included in the MAC.  When included, only the TCP-AO MAC field
>>>>    is zeroed.
>>>>
>>>>    When TCP options are not included, all TCP options except for TCP-
>>>>    AO are omitted from MAC processing.  Again, the TCP-AO MAC field
>>>>    is zeroed for the MAC processing.
>>>>
>>>>
>>>> Corrected Text
>>>> --------------
>>>> 3. The TCP header and TCP options, where the TCP checksum and TCP-AO
>>>>    MAC fields are always set to zero, all in network-byte order.
>>>>
>>>>    The TCP option flag of the MKT indicates which TCP options are
>>>>    included in the MAC. When TCP options are not included, only the
>>>>    TCP option for TCP-AO (as described in Section 2.2) is included
>>>>    in the MAC. Otherwise, all the TCP options are included in the MAC.
>>>>
>>>>
>>>> Notes
>>>> -----
>>>> Rewording for clarity and simplification.
>>>> The original text could lead to confusion re '...When included, only the TCP-AO MAC field is zeroed.'
>>>>
>>>> Instructions:
>>>> -------------
>>>> This erratum is currently posted as "Reported". If necessary, please
>>>> use "Reply All" to discuss whether it should be verified or
>>>> rejected. When a decision is reached, the verifying party
>>>> can log in to change the status and edit the report, if necessary.
>>>>
>>>> --------------------------------------
>>>> RFC5925 (draft-ietf-tcpm-tcp-auth-opt-11)
>>>> --------------------------------------
>>>> Title               : The TCP Authentication Option
>>>> Publication Date    : June 2010
>>>> Author(s)           : J. Touch, A. Mankin, R. Bonica
>>>> Category            : PROPOSED STANDARD
>>>> Source              : TCP Maintenance and Minor Extensions
>>>> Area                : Transport
>>>> Stream              : IETF
>>>> Verifying Party     : IESG
> 
> _______________________________________________
> tcpm mailing list
> tcpm@ietf.org
> https://www.ietf.org/mailman/listinfo/tcpm
> 

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From nobody Wed Sep  5 12:45:18 2018
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Date: Wed, 5 Sep 2018 21:45:06 +0200
Cc: Ignacio Goyret <ignacio.goyret@nokia.com>, "tcpm@ietf.org Extensions" <tcpm@ietf.org>, touch@isi.edu
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References: <20180503203252.D2005B82AA4@rfc-editor.org> <fcbc3182691fb2d763d4966b79a48591@strayalpha.com> <201805040027.w440R3ji011041@cliff.eng.ascend.com> <f210b12a-ca8d-4323-05b2-193cceb88669@strayalpha.com> <518c945f-201d-3e20-4406-4135e182c6af@tik.ee.ethz.ch> <4c9ba64bef09362918acfb2d12a65eba@strayalpha.com>
To: Joe Touch <touch@strayalpha.com>
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Subject: Re: [tcpm] [Editorial Errata Reported] RFC5925 (5347)
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If you could agree, I can update the errata. Thanks!

> Am 05.09.2018 um 21:12 schrieb Joe Touch <touch@strayalpha.com>:
>=20
>=20
>=20
> If we need an errata, we need to agree on the text, which we have not =
yet.
>=20
>=20
>=20
> Joe
>=20
>=20
>=20
> On 2018-09-05 07:53, Mirja K=C3=BChlewind wrote:
>=20
>> Hi Joe, hi Ignacio,
>>=20
>> is this something that I should set in the "Hold for Update" state?
>>=20
>> Mirja
>>=20
>>=20
>>=20
>> On 04.05.2018 03:54, Joe Touch wrote:
>>>=20
>>>=20
>>> On 5/3/2018 5:20 PM, Ignacio Goyret wrote:
>>>> The reason for the errata is because it happened: someone read
>>>> that text and interpreted that the tcp checksum would only need
>>>> to be cleared when only the TCP-AO option was included because the
>>>> text stated "when included, only the TCP-AO MAC field is zeroed".
>>>> Your suggested text addition does not address this incorrect
>>>> interpretation.
>>> It actually does directly, with this phrase: "within those options".
>>>=20
>>>> I also encountered someone that insisted that when only the TCP-AO
>>>> option was included, that it was only the option data, not its =
header.
>>> That is already addressed in the existing text directly here:
>>>=20
>>>    "When TCP options are not included, all TCP options except for =
TCP-
>>>    AO are omitted from MAC processing."
>>>=20
>>>=20
>>>> That's why a reference to section 2.2 sounds reasonable to me.
>>> Adding the reference might be useful, but should not be strictly
>>> necessary to interpret the existing text.
>>>=20
>>>> IMO, this is *exactly* the reason for an "editorial" errata.
>>>> Technical details are not altered, just language clarifications
>>>> to promote interoperability. I am not suggesting rewriting this or
>>>> any other RFC.
>>> There are many RFCs that have been misinterpreted. That doesn't =
always
>>> warrant suggested alternate text.
>>>=20
>>> Joe
>>>=20
>>>>=20
>>>> -Ignacio
>>>>=20
>>>>=20
>>>> At 14:38 5/3/2018, Joe Touch wrote:
>>>>=20
>>>>> I do not agree that this is suggested text represents a =
clarification.
>>>>>=20
>>>>> At best, only the one sentence warrants clarification:
>>>>>=20
>>>>> From: When included, only the TCP-AO MAC field is zeroed.
>>>>>=20
>>>>> To: When TCP options are included, within those options only the =
TCP-AO MAC field is zeroed.
>>>>>=20
>>>>>=20
>>>>> However, that context is implicit in the existing text. Yes, we =
could completely rewrite every RFC to be more clear, but that is not the =
purpose of errata nor is it productive, IMO.
>>>>>=20
>>>>> Joe
>>>>>=20
>>>>> On 2018-05-03 16:32, RFC Errata System wrote:
>>>>>> The following errata report has been submitted for RFC5925,
>>>>>> "The TCP Authentication Option".
>>>>>>=20
>>>>>> --------------------------------------
>>>>>> You may review the report below and at:
>>>>>> =
<http://www.rfc-editor.org/errata/eid5347>http://www.rfc-editor.org/errata=
/eid5347
>>>>>>=20
>>>>>> --------------------------------------
>>>>>> Type: Editorial
>>>>>> Reported by: Ignacio Goyret =
<<mailto:ignacio.goyret@nokia.com>ignacio.goyret@nokia.com>
>>>>>>=20
>>>>>> Section: 5.1
>>>>>>=20
>>>>>> Original Text
>>>>>> -------------
>>>>>> 3. The TCP header, by default including options, and where the =
TCP
>>>>>>    checksum and TCP-AO MAC fields are set to zero, all in =
network-
>>>>>>    byte order.
>>>>>>=20
>>>>>>    The TCP option flag of the MKT indicates whether the TCP =
options
>>>>>>    are included in the MAC.  When included, only the TCP-AO MAC =
field
>>>>>>    is zeroed.
>>>>>>=20
>>>>>>    When TCP options are not included, all TCP options except for =
TCP-
>>>>>>    AO are omitted from MAC processing.  Again, the TCP-AO MAC =
field
>>>>>>    is zeroed for the MAC processing.
>>>>>>=20
>>>>>>=20
>>>>>> Corrected Text
>>>>>> --------------
>>>>>> 3. The TCP header and TCP options, where the TCP checksum and =
TCP-AO
>>>>>>    MAC fields are always set to zero, all in network-byte order.
>>>>>>=20
>>>>>>    The TCP option flag of the MKT indicates which TCP options are
>>>>>>    included in the MAC. When TCP options are not included, only =
the
>>>>>>    TCP option for TCP-AO (as described in Section 2.2) is =
included
>>>>>>    in the MAC. Otherwise, all the TCP options are included in the =
MAC.
>>>>>>=20
>>>>>>=20
>>>>>> Notes
>>>>>> -----
>>>>>> Rewording for clarity and simplification.
>>>>>> The original text could lead to confusion re '...When included, =
only the TCP-AO MAC field is zeroed.'
>>>>>>=20
>>>>>> Instructions:
>>>>>> -------------
>>>>>> This erratum is currently posted as "Reported". If necessary, =
please
>>>>>> use "Reply All" to discuss whether it should be verified or
>>>>>> rejected. When a decision is reached, the verifying party
>>>>>> can log in to change the status and edit the report, if =
necessary.
>>>>>>=20
>>>>>> --------------------------------------
>>>>>> RFC5925 (draft-ietf-tcpm-tcp-auth-opt-11)
>>>>>> --------------------------------------
>>>>>> Title               : The TCP Authentication Option
>>>>>> Publication Date    : June 2010
>>>>>> Author(s)           : J. Touch, A. Mankin, R. Bonica
>>>>>> Category            : PROPOSED STANDARD
>>>>>> Source              : TCP Maintenance and Minor Extensions
>>>>>> Area                : Transport
>>>>>> Stream              : IETF
>>>>>> Verifying Party     : IESG
>>>=20
>>> _______________________________________________
>>> tcpm mailing list
>>> tcpm@ietf.org
>>> https://www.ietf.org/mailman/listinfo/tcpm
>>>=20
>>=20
>> _______________________________________________
>> tcpm mailing list
>> tcpm@ietf.org
>> https://www.ietf.org/mailman/listinfo/tcpm


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From: Joe Touch <touch@strayalpha.com>
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Date: Wed, 5 Sep 2018 13:28:18 -0700
Cc: Ignacio Goyret <ignacio.goyret@nokia.com>, "tcpm@ietf.org Extensions" <tcpm@ietf.org>, touch@isi.edu
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References: <20180503203252.D2005B82AA4@rfc-editor.org> <fcbc3182691fb2d763d4966b79a48591@strayalpha.com> <201805040027.w440R3ji011041@cliff.eng.ascend.com> <f210b12a-ca8d-4323-05b2-193cceb88669@strayalpha.com> <518c945f-201d-3e20-4406-4135e182c6af@tik.ee.ethz.ch> <4c9ba64bef09362918acfb2d12a65eba@strayalpha.com> <DFFDCB90-F0A9-44C0-BE3A-FF74147954B1@tik.ee.ethz.ch>
To: =?utf-8?Q?Mirja_K=C3=BChlewind?= <mirja.kuehlewind@tik.ee.ethz.ch>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/tcpm/PCFJjBOmRawmfyoHtBn_qEDLpwo>
Subject: Re: [tcpm] [Editorial Errata Reported] RFC5925 (5347)
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We can that that off list and converge and get back to you.=20

Joe

> On Sep 5, 2018, at 12:45 PM, Mirja K=C3=BChlewind <mirja.kuehlewind@tik.ee=
.ethz.ch> wrote:
>=20
> If you could agree, I can update the errata. Thanks!
>=20
>> Am 05.09.2018 um 21:12 schrieb Joe Touch <touch@strayalpha.com>:
>>=20
>>=20
>>=20
>> If we need an errata, we need to agree on the text, which we have not yet=
.
>>=20
>>=20
>>=20
>> Joe
>>=20
>>=20
>>=20
>>> On 2018-09-05 07:53, Mirja K=C3=BChlewind wrote:
>>>=20
>>> Hi Joe, hi Ignacio,
>>>=20
>>> is this something that I should set in the "Hold for Update" state?
>>>=20
>>> Mirja
>>>=20
>>>=20
>>>=20
>>>> On 04.05.2018 03:54, Joe Touch wrote:
>>>>=20
>>>>=20
>>>>> On 5/3/2018 5:20 PM, Ignacio Goyret wrote:
>>>>> The reason for the errata is because it happened: someone read
>>>>> that text and interpreted that the tcp checksum would only need
>>>>> to be cleared when only the TCP-AO option was included because the
>>>>> text stated "when included, only the TCP-AO MAC field is zeroed".
>>>>> Your suggested text addition does not address this incorrect
>>>>> interpretation.
>>>> It actually does directly, with this phrase: "within those options".
>>>>=20
>>>>> I also encountered someone that insisted that when only the TCP-AO
>>>>> option was included, that it was only the option data, not its header.=

>>>> That is already addressed in the existing text directly here:
>>>>=20
>>>>   "When TCP options are not included, all TCP options except for TCP-
>>>>   AO are omitted from MAC processing."
>>>>=20
>>>>=20
>>>>> That's why a reference to section 2.2 sounds reasonable to me.
>>>> Adding the reference might be useful, but should not be strictly
>>>> necessary to interpret the existing text.
>>>>=20
>>>>> IMO, this is *exactly* the reason for an "editorial" errata.
>>>>> Technical details are not altered, just language clarifications
>>>>> to promote interoperability. I am not suggesting rewriting this or
>>>>> any other RFC.
>>>> There are many RFCs that have been misinterpreted. That doesn't always
>>>> warrant suggested alternate text.
>>>>=20
>>>> Joe
>>>>=20
>>>>>=20
>>>>> -Ignacio
>>>>>=20
>>>>>=20
>>>>> At 14:38 5/3/2018, Joe Touch wrote:
>>>>>=20
>>>>>> I do not agree that this is suggested text represents a clarification=
.
>>>>>>=20
>>>>>> At best, only the one sentence warrants clarification:
>>>>>>=20
>>>>>> From: When included, only the TCP-AO MAC field is zeroed.
>>>>>>=20
>>>>>> To: When TCP options are included, within those options only the TCP-=
AO MAC field is zeroed.
>>>>>>=20
>>>>>>=20
>>>>>> However, that context is implicit in the existing text. Yes, we could=
 completely rewrite every RFC to be more clear, but that is not the purpose o=
f errata nor is it productive, IMO.
>>>>>>=20
>>>>>> Joe
>>>>>>=20
>>>>>>> On 2018-05-03 16:32, RFC Errata System wrote:
>>>>>>> The following errata report has been submitted for RFC5925,
>>>>>>> "The TCP Authentication Option".
>>>>>>>=20
>>>>>>> --------------------------------------
>>>>>>> You may review the report below and at:
>>>>>>> <http://www.rfc-editor.org/errata/eid5347>http://www.rfc-editor.org/=
errata/eid5347
>>>>>>>=20
>>>>>>> --------------------------------------
>>>>>>> Type: Editorial
>>>>>>> Reported by: Ignacio Goyret <<mailto:ignacio.goyret@nokia.com>ignaci=
o.goyret@nokia.com>
>>>>>>>=20
>>>>>>> Section: 5.1
>>>>>>>=20
>>>>>>> Original Text
>>>>>>> -------------
>>>>>>> 3. The TCP header, by default including options, and where the TCP
>>>>>>>   checksum and TCP-AO MAC fields are set to zero, all in network-
>>>>>>>   byte order.
>>>>>>>=20
>>>>>>>   The TCP option flag of the MKT indicates whether the TCP options
>>>>>>>   are included in the MAC.  When included, only the TCP-AO MAC field=

>>>>>>>   is zeroed.
>>>>>>>=20
>>>>>>>   When TCP options are not included, all TCP options except for TCP-=

>>>>>>>   AO are omitted from MAC processing.  Again, the TCP-AO MAC field
>>>>>>>   is zeroed for the MAC processing.
>>>>>>>=20
>>>>>>>=20
>>>>>>> Corrected Text
>>>>>>> --------------
>>>>>>> 3. The TCP header and TCP options, where the TCP checksum and TCP-AO=

>>>>>>>   MAC fields are always set to zero, all in network-byte order.
>>>>>>>=20
>>>>>>>   The TCP option flag of the MKT indicates which TCP options are
>>>>>>>   included in the MAC. When TCP options are not included, only the
>>>>>>>   TCP option for TCP-AO (as described in Section 2.2) is included
>>>>>>>   in the MAC. Otherwise, all the TCP options are included in the MAC=
.
>>>>>>>=20
>>>>>>>=20
>>>>>>> Notes
>>>>>>> -----
>>>>>>> Rewording for clarity and simplification.
>>>>>>> The original text could lead to confusion re '...When included, only=
 the TCP-AO MAC field is zeroed.'
>>>>>>>=20
>>>>>>> Instructions:
>>>>>>> -------------
>>>>>>> This erratum is currently posted as "Reported". If necessary, please=

>>>>>>> use "Reply All" to discuss whether it should be verified or
>>>>>>> rejected. When a decision is reached, the verifying party
>>>>>>> can log in to change the status and edit the report, if necessary.
>>>>>>>=20
>>>>>>> --------------------------------------
>>>>>>> RFC5925 (draft-ietf-tcpm-tcp-auth-opt-11)
>>>>>>> --------------------------------------
>>>>>>> Title               : The TCP Authentication Option
>>>>>>> Publication Date    : June 2010
>>>>>>> Author(s)           : J. Touch, A. Mankin, R. Bonica
>>>>>>> Category            : PROPOSED STANDARD
>>>>>>> Source              : TCP Maintenance and Minor Extensions
>>>>>>> Area                : Transport
>>>>>>> Stream              : IETF
>>>>>>> Verifying Party     : IESG
>>>>=20
>>>> _______________________________________________
>>>> tcpm mailing list
>>>> tcpm@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/tcpm
>>>>=20
>>>=20
>>> _______________________________________________
>>> tcpm mailing list
>>> tcpm@ietf.org
>>> https://www.ietf.org/mailman/listinfo/tcpm
>=20


From nobody Thu Sep  6 01:13:08 2018
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To: Joe Touch <touch@strayalpha.com>
Cc: Ignacio Goyret <ignacio.goyret@nokia.com>, "tcpm@ietf.org Extensions" <tcpm@ietf.org>, touch@isi.edu
References: <20180503203252.D2005B82AA4@rfc-editor.org> <fcbc3182691fb2d763d4966b79a48591@strayalpha.com> <201805040027.w440R3ji011041@cliff.eng.ascend.com> <f210b12a-ca8d-4323-05b2-193cceb88669@strayalpha.com> <518c945f-201d-3e20-4406-4135e182c6af@tik.ee.ethz.ch> <4c9ba64bef09362918acfb2d12a65eba@strayalpha.com> <DFFDCB90-F0A9-44C0-BE3A-FF74147954B1@tik.ee.ethz.ch> <9C4A5263-1653-42EE-B386-161AB97F880F@strayalpha.com>
From: =?UTF-8?Q?Mirja_K=c3=bchlewind?= <mirja.kuehlewind@tik.ee.ethz.ch>
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Subject: Re: [tcpm] [Editorial Errata Reported] RFC5925 (5347)
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That would be great! Thanks!

On 05.09.2018 22:28, Joe Touch wrote:
> We can that that off list and converge and get back to you.
> 
> Joe
> 
>> On Sep 5, 2018, at 12:45 PM, Mirja Kühlewind <mirja.kuehlewind@tik.ee.ethz.ch> wrote:
>>
>> If you could agree, I can update the errata. Thanks!
>>
>>> Am 05.09.2018 um 21:12 schrieb Joe Touch <touch@strayalpha.com>:
>>>
>>>
>>>
>>> If we need an errata, we need to agree on the text, which we have not yet.
>>>
>>>
>>>
>>> Joe
>>>
>>>
>>>
>>>> On 2018-09-05 07:53, Mirja Kühlewind wrote:
>>>>
>>>> Hi Joe, hi Ignacio,
>>>>
>>>> is this something that I should set in the "Hold for Update" state?
>>>>
>>>> Mirja
>>>>
>>>>
>>>>
>>>>> On 04.05.2018 03:54, Joe Touch wrote:
>>>>>
>>>>>
>>>>>> On 5/3/2018 5:20 PM, Ignacio Goyret wrote:
>>>>>> The reason for the errata is because it happened: someone read
>>>>>> that text and interpreted that the tcp checksum would only need
>>>>>> to be cleared when only the TCP-AO option was included because the
>>>>>> text stated "when included, only the TCP-AO MAC field is zeroed".
>>>>>> Your suggested text addition does not address this incorrect
>>>>>> interpretation.
>>>>> It actually does directly, with this phrase: "within those options".
>>>>>
>>>>>> I also encountered someone that insisted that when only the TCP-AO
>>>>>> option was included, that it was only the option data, not its header.
>>>>> That is already addressed in the existing text directly here:
>>>>>
>>>>>    "When TCP options are not included, all TCP options except for TCP-
>>>>>    AO are omitted from MAC processing."
>>>>>
>>>>>
>>>>>> That's why a reference to section 2.2 sounds reasonable to me.
>>>>> Adding the reference might be useful, but should not be strictly
>>>>> necessary to interpret the existing text.
>>>>>
>>>>>> IMO, this is *exactly* the reason for an "editorial" errata.
>>>>>> Technical details are not altered, just language clarifications
>>>>>> to promote interoperability. I am not suggesting rewriting this or
>>>>>> any other RFC.
>>>>> There are many RFCs that have been misinterpreted. That doesn't always
>>>>> warrant suggested alternate text.
>>>>>
>>>>> Joe
>>>>>
>>>>>>
>>>>>> -Ignacio
>>>>>>
>>>>>>
>>>>>> At 14:38 5/3/2018, Joe Touch wrote:
>>>>>>
>>>>>>> I do not agree that this is suggested text represents a clarification.
>>>>>>>
>>>>>>> At best, only the one sentence warrants clarification:
>>>>>>>
>>>>>>> From: When included, only the TCP-AO MAC field is zeroed.
>>>>>>>
>>>>>>> To: When TCP options are included, within those options only the TCP-AO MAC field is zeroed.
>>>>>>>
>>>>>>>
>>>>>>> However, that context is implicit in the existing text. Yes, we could completely rewrite every RFC to be more clear, but that is not the purpose of errata nor is it productive, IMO.
>>>>>>>
>>>>>>> Joe
>>>>>>>
>>>>>>>> On 2018-05-03 16:32, RFC Errata System wrote:
>>>>>>>> The following errata report has been submitted for RFC5925,
>>>>>>>> "The TCP Authentication Option".
>>>>>>>>
>>>>>>>> --------------------------------------
>>>>>>>> You may review the report below and at:
>>>>>>>> <http://www.rfc-editor.org/errata/eid5347>http://www.rfc-editor.org/errata/eid5347
>>>>>>>>
>>>>>>>> --------------------------------------
>>>>>>>> Type: Editorial
>>>>>>>> Reported by: Ignacio Goyret <<mailto:ignacio.goyret@nokia.com>ignacio.goyret@nokia.com>
>>>>>>>>
>>>>>>>> Section: 5.1
>>>>>>>>
>>>>>>>> Original Text
>>>>>>>> -------------
>>>>>>>> 3. The TCP header, by default including options, and where the TCP
>>>>>>>>    checksum and TCP-AO MAC fields are set to zero, all in network-
>>>>>>>>    byte order.
>>>>>>>>
>>>>>>>>    The TCP option flag of the MKT indicates whether the TCP options
>>>>>>>>    are included in the MAC.  When included, only the TCP-AO MAC field
>>>>>>>>    is zeroed.
>>>>>>>>
>>>>>>>>    When TCP options are not included, all TCP options except for TCP-
>>>>>>>>    AO are omitted from MAC processing.  Again, the TCP-AO MAC field
>>>>>>>>    is zeroed for the MAC processing.
>>>>>>>>
>>>>>>>>
>>>>>>>> Corrected Text
>>>>>>>> --------------
>>>>>>>> 3. The TCP header and TCP options, where the TCP checksum and TCP-AO
>>>>>>>>    MAC fields are always set to zero, all in network-byte order.
>>>>>>>>
>>>>>>>>    The TCP option flag of the MKT indicates which TCP options are
>>>>>>>>    included in the MAC. When TCP options are not included, only the
>>>>>>>>    TCP option for TCP-AO (as described in Section 2.2) is included
>>>>>>>>    in the MAC. Otherwise, all the TCP options are included in the MAC.
>>>>>>>>
>>>>>>>>
>>>>>>>> Notes
>>>>>>>> -----
>>>>>>>> Rewording for clarity and simplification.
>>>>>>>> The original text could lead to confusion re '...When included, only the TCP-AO MAC field is zeroed.'
>>>>>>>>
>>>>>>>> Instructions:
>>>>>>>> -------------
>>>>>>>> This erratum is currently posted as "Reported". If necessary, please
>>>>>>>> use "Reply All" to discuss whether it should be verified or
>>>>>>>> rejected. When a decision is reached, the verifying party
>>>>>>>> can log in to change the status and edit the report, if necessary.
>>>>>>>>
>>>>>>>> --------------------------------------
>>>>>>>> RFC5925 (draft-ietf-tcpm-tcp-auth-opt-11)
>>>>>>>> --------------------------------------
>>>>>>>> Title               : The TCP Authentication Option
>>>>>>>> Publication Date    : June 2010
>>>>>>>> Author(s)           : J. Touch, A. Mankin, R. Bonica
>>>>>>>> Category            : PROPOSED STANDARD
>>>>>>>> Source              : TCP Maintenance and Minor Extensions
>>>>>>>> Area                : Transport
>>>>>>>> Stream              : IETF
>>>>>>>> Verifying Party     : IESG
>>>>>
>>>>> _______________________________________________
>>>>> tcpm mailing list
>>>>> tcpm@ietf.org
>>>>> https://www.ietf.org/mailman/listinfo/tcpm
>>>>>
>>>>
>>>> _______________________________________________
>>>> tcpm mailing list
>>>> tcpm@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/tcpm
>>
> 

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From: Joe Touch <touch@strayalpha.com>
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Cc: Ignacio Goyret <ignacio.goyret@nokia.com>, tcpm@ietf.org, touch@isi.edu, rbonica@juniper.net, mankin@psg.com, ietf@kuehlewind.net, spencerdawkins.ietf@gmail.com, tuexen@fh-muenster.de, RFC Errata System <rfc-editor@rfc-editor.org>
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Subject: Re: [tcpm] [Editorial Errata Reported] RFC5925 (5347)
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If we need an errata, we need to agree on the text, which we have not
yet. 

Joe 

On 2018-09-05 07:53, Mirja Kühlewind wrote:

> Hi Joe, hi Ignacio,
> 
> is this something that I should set in the "Hold for Update" state?
> 
> Mirja
> 
> On 04.05.2018 03:54, Joe Touch wrote: 
> 
> On 5/3/2018 5:20 PM, Ignacio Goyret wrote: The reason for the errata is because it happened: someone read
> that text and interpreted that the tcp checksum would only need
> to be cleared when only the TCP-AO option was included because the
> text stated "when included, only the TCP-AO MAC field is zeroed".
> Your suggested text addition does not address this incorrect
> interpretation. It actually does directly, with this phrase: "within those options".
> 
> I also encountered someone that insisted that when only the TCP-AO
> option was included, that it was only the option data, not its header. That is already addressed in the existing text directly here:
> 
> "When TCP options are not included, all TCP options except for TCP-
> AO are omitted from MAC processing."
> 
> That's why a reference to section 2.2 sounds reasonable to me. Adding the reference might be useful, but should not be strictly
> necessary to interpret the existing text.
> 
> IMO, this is *exactly* the reason for an "editorial" errata.
> Technical details are not altered, just language clarifications
> to promote interoperability. I am not suggesting rewriting this or
> any other RFC. There are many RFCs that have been misinterpreted. That doesn't always
> warrant suggested alternate text.
> 
> Joe
> 
> -Ignacio
> 
> At 14:38 5/3/2018, Joe Touch wrote:
> 
> I do not agree that this is suggested text represents a clarification.
> 
> At best, only the one sentence warrants clarification:
> 
> From: When included, only the TCP-AO MAC field is zeroed.
> 
> To: When TCP options are included, within those options only the TCP-AO MAC field is zeroed.
> 
> However, that context is implicit in the existing text. Yes, we could completely rewrite every RFC to be more clear, but that is not the purpose of errata nor is it productive, IMO.
> 
> Joe
> 
> On 2018-05-03 16:32, RFC Errata System wrote: The following errata report has been submitted for RFC5925,
> "The TCP Authentication Option".
> 
> --------------------------------------
> You may review the report below and at:
> <http://www.rfc-editor.org/errata/eid5347>http://www.rfc-editor.org/errata/eid5347
> 
> --------------------------------------
> Type: Editorial
> Reported by: Ignacio Goyret <<mailto:ignacio.goyret@nokia.com>ignacio.goyret@nokia.com>
> 
> Section: 5.1
> 
> Original Text
> -------------
> 3. The TCP header, by default including options, and where the TCP
> checksum and TCP-AO MAC fields are set to zero, all in network-
> byte order.
> 
> The TCP option flag of the MKT indicates whether the TCP options
> are included in the MAC.  When included, only the TCP-AO MAC field
> is zeroed.
> 
> When TCP options are not included, all TCP options except for TCP-
> AO are omitted from MAC processing.  Again, the TCP-AO MAC field
> is zeroed for the MAC processing.
> 
> Corrected Text
> --------------
> 3. The TCP header and TCP options, where the TCP checksum and TCP-AO
> MAC fields are always set to zero, all in network-byte order.
> 
> The TCP option flag of the MKT indicates which TCP options are
> included in the MAC. When TCP options are not included, only the
> TCP option for TCP-AO (as described in Section 2.2) is included
> in the MAC. Otherwise, all the TCP options are included in the MAC.
> 
> Notes
> -----
> Rewording for clarity and simplification.
> The original text could lead to confusion re '...When included, only the TCP-AO MAC field is zeroed.'
> 
> Instructions:
> -------------
> This erratum is currently posted as "Reported". If necessary, please
> use "Reply All" to discuss whether it should be verified or
> rejected. When a decision is reached, the verifying party
> can log in to change the status and edit the report, if necessary.
> 
> --------------------------------------
> RFC5925 (draft-ietf-tcpm-tcp-auth-opt-11)
> --------------------------------------
> Title               : The TCP Authentication Option
> Publication Date    : June 2010
> Author(s)           : J. Touch, A. Mankin, R. Bonica
> Category            : PROPOSED STANDARD
> Source              : TCP Maintenance and Minor Extensions
> Area                : Transport
> Stream              : IETF
> Verifying Party     : IESG

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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; charset=
=3DUTF-8" /></head><body style=3D'font-size: 10pt; font-family: Verdana,Gen=
eva,sans-serif'>
<p><br /></p>
<p>If we need an errata, we need to agree on the text, which we have not ye=
t.</p>
<p><br /></p>
<p>Joe</p>
<p><br /></p>
<p>On 2018-09-05 07:53, Mirja K&uuml;hlewind wrote:</p>
<blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2=
px solid; margin: 0"><!-- html ignored --><!-- head ignored --><!-- meta ig=
nored -->
<div class=3D"pre" style=3D"margin: 0; padding: 0; font-family: monospace">=
<span style=3D"white-space: nowrap;">Hi&nbsp;Joe,&nbsp;hi&nbsp;Ignacio,</sp=
an><br /><br /><span style=3D"white-space: nowrap;">is&nbsp;this&nbsp;somet=
hing&nbsp;that&nbsp;I&nbsp;should&nbsp;set&nbsp;in&nbsp;the&nbsp;"Hold&nbsp=
;for&nbsp;Update"&nbsp;state?</span><br /><br /> Mirja<br /><br /><br /><br=
 /><span style=3D"white-space: nowrap;">On&nbsp;04.05.2018&nbsp;03:54,&nbsp=
;Joe&nbsp;Touch&nbsp;wrote:</span>
<blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2=
px solid; margin: 0"><br /><br /><span style=3D"white-space: nowrap;">On&nb=
sp;5/3/2018&nbsp;5:20&nbsp;PM,&nbsp;Ignacio&nbsp;Goyret&nbsp;wrote:</span>
<blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2=
px solid; margin: 0"><span style=3D"white-space: nowrap;">The&nbsp;reason&n=
bsp;for&nbsp;the&nbsp;errata&nbsp;is&nbsp;because&nbsp;it&nbsp;happened:&nb=
sp;someone&nbsp;read</span><br /><span style=3D"white-space: nowrap;">that&=
nbsp;text&nbsp;and&nbsp;interpreted&nbsp;that&nbsp;the&nbsp;tcp&nbsp;checks=
um&nbsp;would&nbsp;only&nbsp;need</span><br /><span style=3D"white-space: n=
owrap;">to&nbsp;be&nbsp;cleared&nbsp;when&nbsp;only&nbsp;the&nbsp;TCP-AO&nb=
sp;option&nbsp;was&nbsp;included&nbsp;because&nbsp;the</span><br /><span st=
yle=3D"white-space: nowrap;">text&nbsp;stated&nbsp;"when&nbsp;included,&nbs=
p;only&nbsp;the&nbsp;TCP-AO&nbsp;MAC&nbsp;field&nbsp;is&nbsp;zeroed".</span=
><br /><span style=3D"white-space: nowrap;">Your&nbsp;suggested&nbsp;text&n=
bsp;addition&nbsp;does&nbsp;not&nbsp;address&nbsp;this&nbsp;incorrect</span=
><br /><span style=3D"white-space: nowrap;">interpretation.</span></blockqu=
ote>
<span style=3D"white-space: nowrap;">It&nbsp;actually&nbsp;does&nbsp;direct=
ly,&nbsp;with&nbsp;this&nbsp;phrase:&nbsp;"within&nbsp;those&nbsp;options"=
=2E</span><br /><br />
<blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2=
px solid; margin: 0"><span style=3D"white-space: nowrap;">I&nbsp;also&nbsp;=
encountered&nbsp;someone&nbsp;that&nbsp;insisted&nbsp;that&nbsp;when&nbsp;o=
nly&nbsp;the&nbsp;TCP-AO</span><br /><span style=3D"white-space: nowrap;">o=
ption&nbsp;was&nbsp;included,&nbsp;that&nbsp;it&nbsp;was&nbsp;only&nbsp;the=
&nbsp;option&nbsp;data,&nbsp;not&nbsp;its&nbsp;header.</span></blockquote>
<span style=3D"white-space: nowrap;">That&nbsp;is&nbsp;already&nbsp;address=
ed&nbsp;in&nbsp;the&nbsp;existing&nbsp;text&nbsp;directly&nbsp;here:</span>=
<br /><br /><span style=3D"white-space: nowrap;">&nbsp;&nbsp;&nbsp;"When&nb=
sp;TCP&nbsp;options&nbsp;are&nbsp;not&nbsp;included,&nbsp;all&nbsp;TCP&nbsp=
;options&nbsp;except&nbsp;for&nbsp;TCP-</span><br /><span style=3D"white-sp=
ace: nowrap;">&nbsp;&nbsp;&nbsp;AO&nbsp;are&nbsp;omitted&nbsp;from&nbsp;MAC=
&nbsp;processing."</span><br /><br /><br />
<blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2=
px solid; margin: 0"><span style=3D"white-space: nowrap;">That's&nbsp;why&n=
bsp;a&nbsp;reference&nbsp;to&nbsp;section&nbsp;2.2&nbsp;sounds&nbsp;reasona=
ble&nbsp;to&nbsp;me.</span></blockquote>
<span style=3D"white-space: nowrap;">Adding&nbsp;the&nbsp;reference&nbsp;mi=
ght&nbsp;be&nbsp;useful,&nbsp;but&nbsp;should&nbsp;not&nbsp;be&nbsp;strictl=
y</span><br /><span style=3D"white-space: nowrap;">necessary&nbsp;to&nbsp;i=
nterpret&nbsp;the&nbsp;existing&nbsp;text.</span><br /><br />
<blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2=
px solid; margin: 0"><span style=3D"white-space: nowrap;">IMO,&nbsp;this&nb=
sp;is&nbsp;*exactly*&nbsp;the&nbsp;reason&nbsp;for&nbsp;an&nbsp;"editorial"=
&nbsp;errata.</span><br /><span style=3D"white-space: nowrap;">Technical&nb=
sp;details&nbsp;are&nbsp;not&nbsp;altered,&nbsp;just&nbsp;language&nbsp;cla=
rifications</span><br /><span style=3D"white-space: nowrap;">to&nbsp;promot=
e&nbsp;interoperability.&nbsp;I&nbsp;am&nbsp;not&nbsp;suggesting&nbsp;rewri=
ting&nbsp;this&nbsp;or</span><br /><span style=3D"white-space: nowrap;">any=
&nbsp;other&nbsp;RFC.</span></blockquote>
<span style=3D"white-space: nowrap;">There&nbsp;are&nbsp;many&nbsp;RFCs&nbs=
p;that&nbsp;have&nbsp;been&nbsp;misinterpreted.&nbsp;That&nbsp;doesn't&nbsp=
;always</span><br /><span style=3D"white-space: nowrap;">warrant&nbsp;sugge=
sted&nbsp;alternate&nbsp;text.</span><br /><br /> Joe<br /><br />
<blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2=
px solid; margin: 0"><br /><span style=3D"white-space: nowrap;">-Ignacio</s=
pan><br /><br /><br /><span style=3D"white-space: nowrap;">At&nbsp;14:38&nb=
sp;5/3/2018,&nbsp;Joe&nbsp;Touch&nbsp;wrote:</span><br /><br />
<blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2=
px solid; margin: 0"><span style=3D"white-space: nowrap;">I&nbsp;do&nbsp;no=
t&nbsp;agree&nbsp;that&nbsp;this&nbsp;is&nbsp;suggested&nbsp;text&nbsp;repr=
esents&nbsp;a&nbsp;clarification.</span><br /><br /><span style=3D"white-sp=
ace: nowrap;">At&nbsp;best,&nbsp;only&nbsp;the&nbsp;one&nbsp;sentence&nbsp;=
warrants&nbsp;clarification:</span><br /><br /><span style=3D"white-space: =
nowrap;">From:&nbsp;When&nbsp;included,&nbsp;only&nbsp;the&nbsp;TCP-AO&nbsp=
;MAC&nbsp;field&nbsp;is&nbsp;zeroed.</span><br /><br /><span style=3D"white=
-space: nowrap;">To:&nbsp;When&nbsp;TCP&nbsp;options&nbsp;are&nbsp;included=
,&nbsp;within&nbsp;those&nbsp;options&nbsp;only&nbsp;the&nbsp;TCP-AO&nbsp;M=
AC&nbsp;field&nbsp;is&nbsp;zeroed.</span><br /><br /><br /><span style=3D"w=
hite-space: nowrap;">However,&nbsp;that&nbsp;context&nbsp;is&nbsp;implicit&=
nbsp;in&nbsp;the&nbsp;existing&nbsp;text.&nbsp;Yes,&nbsp;we&nbsp;could&nbsp=
;completely&nbsp;rewrite&nbsp;every&nbsp;RFC&nbsp;to&nbsp;be&nbsp;more&nbsp=
;clear,&nbsp;but&nbsp;that&nbsp;is&nbsp;not&nbsp;the&nbsp;purpose&nbsp;of&n=
bsp;errata&nbsp;nor&nbsp;is&nbsp;it&nbsp;productive,&nbsp;IMO.</span><br />=
<br /> Joe<br /><br /><span style=3D"white-space: nowrap;">On&nbsp;2018-05-=
03&nbsp;16:32,&nbsp;RFC&nbsp;Errata&nbsp;System&nbsp;wrote:</span>
<blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2=
px solid; margin: 0"><span style=3D"white-space: nowrap;">The&nbsp;followin=
g&nbsp;errata&nbsp;report&nbsp;has&nbsp;been&nbsp;submitted&nbsp;for&nbsp;R=
FC5925,</span><br /><span style=3D"white-space: nowrap;">"The&nbsp;TCP&nbsp=
;Authentication&nbsp;Option".</span><br /><br /><span style=3D"white-space:=
 nowrap;">--------------------------------------</span><br /><span style=3D=
"white-space: nowrap;">You&nbsp;may&nbsp;review&nbsp;the&nbsp;report&nbsp;b=
elow&nbsp;and&nbsp;at:</span><br /><span style=3D"white-space: nowrap;">&lt=
;<a href=3D"http://www.rfc-editor.org/errata/eid5347" target=3D"_blank" rel=
=3D"noopener noreferrer">http://www.rfc-editor.org/errata/eid5347</a>&gt;<a=
 href=3D"http://www.rfc-editor.org/errata/eid5347" target=3D"_blank" rel=3D=
"noopener noreferrer">http://www.rfc-editor.org/errata/eid5347</a></span><b=
r /><br /><span style=3D"white-space: nowrap;">----------------------------=
----------</span><br /><span style=3D"white-space: nowrap;">Type:&nbsp;Edit=
orial</span><br /><span style=3D"white-space: nowrap;">Reported&nbsp;by:&nb=
sp;Ignacio&nbsp;Goyret&nbsp;&lt;&lt;mailto:<a href=3D"mailto:ignacio.goyret=
@nokia.com">ignacio.goyret@nokia.com</a>&gt;<a href=3D"mailto:ignacio.goyre=
t@nokia.com">ignacio.goyret@nokia.com</a>&gt;</span><br /><br /><span style=
=3D"white-space: nowrap;">Section:&nbsp;5.1</span><br /><br /><span style=
=3D"white-space: nowrap;">Original&nbsp;Text</span><br /><span style=3D"whi=
te-space: nowrap;">-------------</span><br /><span style=3D"white-space: no=
wrap;">3.&nbsp;The&nbsp;TCP&nbsp;header,&nbsp;by&nbsp;default&nbsp;includin=
g&nbsp;options,&nbsp;and&nbsp;where&nbsp;the&nbsp;TCP</span><br /><span sty=
le=3D"white-space: nowrap;">&nbsp;&nbsp;&nbsp;checksum&nbsp;and&nbsp;TCP-AO=
&nbsp;MAC&nbsp;fields&nbsp;are&nbsp;set&nbsp;to&nbsp;zero,&nbsp;all&nbsp;in=
&nbsp;network-</span><br /><span style=3D"white-space: nowrap;">&nbsp;&nbsp=
;&nbsp;byte&nbsp;order.</span><br /><br /><span style=3D"white-space: nowra=
p;">&nbsp;&nbsp;&nbsp;The&nbsp;TCP&nbsp;option&nbsp;flag&nbsp;of&nbsp;the&n=
bsp;MKT&nbsp;indicates&nbsp;whether&nbsp;the&nbsp;TCP&nbsp;options</span><b=
r /><span style=3D"white-space: nowrap;">&nbsp;&nbsp;&nbsp;are&nbsp;include=
d&nbsp;in&nbsp;the&nbsp;MAC.&nbsp;&nbsp;When&nbsp;included,&nbsp;only&nbsp;=
the&nbsp;TCP-AO&nbsp;MAC&nbsp;field</span><br /><span style=3D"white-space:=
 nowrap;">&nbsp;&nbsp;&nbsp;is&nbsp;zeroed.</span><br /><br /><span style=
=3D"white-space: nowrap;">&nbsp;&nbsp;&nbsp;When&nbsp;TCP&nbsp;options&nbsp=
;are&nbsp;not&nbsp;included,&nbsp;all&nbsp;TCP&nbsp;options&nbsp;except&nbs=
p;for&nbsp;TCP-</span><br /><span style=3D"white-space: nowrap;">&nbsp;&nbs=
p;&nbsp;AO&nbsp;are&nbsp;omitted&nbsp;from&nbsp;MAC&nbsp;processing.&nbsp;&=
nbsp;Again,&nbsp;the&nbsp;TCP-AO&nbsp;MAC&nbsp;field</span><br /><span styl=
e=3D"white-space: nowrap;">&nbsp;&nbsp;&nbsp;is&nbsp;zeroed&nbsp;for&nbsp;t=
he&nbsp;MAC&nbsp;processing.</span><br /><br /><br /><span style=3D"white-s=
pace: nowrap;">Corrected&nbsp;Text</span><br /><span style=3D"white-space: =
nowrap;">--------------</span><br /><span style=3D"white-space: nowrap;">3=
=2E&nbsp;The&nbsp;TCP&nbsp;header&nbsp;and&nbsp;TCP&nbsp;options,&nbsp;wher=
e&nbsp;the&nbsp;TCP&nbsp;checksum&nbsp;and&nbsp;TCP-AO</span><br /><span st=
yle=3D"white-space: nowrap;">&nbsp;&nbsp;&nbsp;MAC&nbsp;fields&nbsp;are&nbs=
p;always&nbsp;set&nbsp;to&nbsp;zero,&nbsp;all&nbsp;in&nbsp;network-byte&nbs=
p;order.</span><br /><br /><span style=3D"white-space: nowrap;">&nbsp;&nbsp=
;&nbsp;The&nbsp;TCP&nbsp;option&nbsp;flag&nbsp;of&nbsp;the&nbsp;MKT&nbsp;in=
dicates&nbsp;which&nbsp;TCP&nbsp;options&nbsp;are</span><br /><span style=
=3D"white-space: nowrap;">&nbsp;&nbsp;&nbsp;included&nbsp;in&nbsp;the&nbsp;=
MAC.&nbsp;When&nbsp;TCP&nbsp;options&nbsp;are&nbsp;not&nbsp;included,&nbsp;=
only&nbsp;the</span><br /><span style=3D"white-space: nowrap;">&nbsp;&nbsp;=
&nbsp;TCP&nbsp;option&nbsp;for&nbsp;TCP-AO&nbsp;(as&nbsp;described&nbsp;in&=
nbsp;Section&nbsp;2.2)&nbsp;is&nbsp;included</span><br /><span style=3D"whi=
te-space: nowrap;">&nbsp;&nbsp;&nbsp;in&nbsp;the&nbsp;MAC.&nbsp;Otherwise,&=
nbsp;all&nbsp;the&nbsp;TCP&nbsp;options&nbsp;are&nbsp;included&nbsp;in&nbsp=
;the&nbsp;MAC.</span><br /><br /><br /> Notes<br /><span style=3D"white-spa=
ce: nowrap;">-----</span><br /><span style=3D"white-space: nowrap;">Rewordi=
ng&nbsp;for&nbsp;clarity&nbsp;and&nbsp;simplification.</span><br /><span st=
yle=3D"white-space: nowrap;">The&nbsp;original&nbsp;text&nbsp;could&nbsp;le=
ad&nbsp;to&nbsp;confusion&nbsp;re&nbsp;'...When&nbsp;included,&nbsp;only&nb=
sp;the&nbsp;TCP-AO&nbsp;MAC&nbsp;field&nbsp;is&nbsp;zeroed.'</span><br /><b=
r /><span style=3D"white-space: nowrap;">Instructions:</span><br /><span st=
yle=3D"white-space: nowrap;">-------------</span><br /><span style=3D"white=
-space: nowrap;">This&nbsp;erratum&nbsp;is&nbsp;currently&nbsp;posted&nbsp;=
as&nbsp;"Reported".&nbsp;If&nbsp;necessary,&nbsp;please</span><br /><span s=
tyle=3D"white-space: nowrap;">use&nbsp;"Reply&nbsp;All"&nbsp;to&nbsp;discus=
s&nbsp;whether&nbsp;it&nbsp;should&nbsp;be&nbsp;verified&nbsp;or</span><br =
/><span style=3D"white-space: nowrap;">rejected.&nbsp;When&nbsp;a&nbsp;deci=
sion&nbsp;is&nbsp;reached,&nbsp;the&nbsp;verifying&nbsp;party</span><br /><=
span style=3D"white-space: nowrap;">can&nbsp;log&nbsp;in&nbsp;to&nbsp;chang=
e&nbsp;the&nbsp;status&nbsp;and&nbsp;edit&nbsp;the&nbsp;report,&nbsp;if&nbs=
p;necessary.</span><br /><br /><span style=3D"white-space: nowrap;">-------=
-------------------------------</span><br /><span style=3D"white-space: now=
rap;">RFC5925&nbsp;(draft-ietf-tcpm-tcp-auth-opt-11)</span><br /><span styl=
e=3D"white-space: nowrap;">--------------------------------------</span><br=
 /><span style=3D"white-space: nowrap;">Title&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:&nbsp;The&nbsp=
;TCP&nbsp;Authentication&nbsp;Option</span><br /><span style=3D"white-space=
: nowrap;">Publication&nbsp;Date&nbsp;&nbsp;&nbsp;&nbsp;:&nbsp;June&nbsp;20=
10</span><br /><span style=3D"white-space: nowrap;">Author(s)&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:&nbsp;J.&nbsp;Touch,&n=
bsp;A.&nbsp;Mankin,&nbsp;R.&nbsp;Bonica</span><br /><span style=3D"white-sp=
ace: nowrap;">Category&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;:&nbsp;PROPOSED&nbsp;STANDARD</span><br /><span style=3D=
"white-space: nowrap;">Source&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:&nbsp;TCP&nbsp;Maintenance&nbsp;and&=
nbsp;Minor&nbsp;Extensions</span><br /><span style=3D"white-space: nowrap;"=
>Area&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;:&nbsp;Transport</span><br /><span style=3D"white=
-space: nowrap;">Stream&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:&nbsp;IETF</span><br /><span style=3D"whit=
e-space: nowrap;">Verifying&nbsp;Party&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:&nbsp;=
IESG</span></blockquote>
</blockquote>
</blockquote>
<br /> _______________________________________________<br /><span style=3D"=
white-space: nowrap;">tcpm&nbsp;mailing&nbsp;list</span><br /><span style=
=3D"white-space: nowrap;"><a href=3D"mailto:tcpm@ietf.org">tcpm@ietf.org</a=
></span><br /><span style=3D"white-space: nowrap;"><a href=3D"https://www=
=2Eietf.org/mailman/listinfo/tcpm" target=3D"_blank" rel=3D"noopener norefe=
rrer">https://www.ietf.org/mailman/listinfo/tcpm</a></span><br /><br /></bl=
ockquote>
</div>
<br />
<div class=3D"pre" style=3D"margin: 0; padding: 0; font-family: monospace">=
_______________________________________________<br /> tcpm mailing list<br =
/><a href=3D"mailto:tcpm@ietf.org">tcpm@ietf.org</a><br /><a href=3D"https:=
//www.ietf.org/mailman/listinfo/tcpm" target=3D"_blank" rel=3D"noopener nor=
eferrer">https://www.ietf.org/mailman/listinfo/tcpm</a></div>
</blockquote>
</body></html>

--=_b55991603a396f58671b0f1c1686fdf0--


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Subject: [tcpm] tcpm - New Meeting Session Request for IETF 103
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A new meeting session request has just been submitted by Yoshifumi Nishida, a Chair of the tcpm working group.


---------------------------------------------------------
Working Group Name: TCP Maintenance and Minor Extensions
Area Name: Transport Area
Session Requester: Yoshifumi Nishida

Number of Sessions: 1
Length of Session(s):  2 Hours
Number of Attendees: 80
Conflicts to Avoid: 
 First Priority: iccrg tcpinc mptcp taps tsvarea tsvwg quic
 Second Priority: httpbis lwig rmcat teas
 Third Priority: rtcweb maprg panrg


People who must be present:
  Yoshifumi Nishida
  Michael Tuexen
  Michael Scharf
  Mirja Kuehlewind

Resources Requested:

Special Requests:
  
---------------------------------------------------------


From nobody Tue Sep 11 03:16:57 2018
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From: Loganaden Velvindron <loganaden@gmail.com>
Date: Tue, 11 Sep 2018 14:16:51 +0400
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Subject: Re: [tcpm] rfc5961 and suggested updates.
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On Fri, Aug 24, 2018 at 6:07 PM, Mirja K=C3=BChlewind
<mirja.kuehlewind@tik.ee.ethz.ch> wrote:
> Hi,
>
> my personal opinion:
>
> I agree that documenting the problem and recommending the implementation =
of per-socket limits would be a useful thing to do.
>
> I don=E2=80=99t think it is appropriated or needed to update or even depr=
ecate/ RFC5961, therefore I would strongly support the changes to this draf=
t as you described below.
>
> Mirja
>

Thank you Mirja.

I have updated the I-D, and removed all texts which suggested updates
or deprecation of RFC5961. Feedback/opinions welcomed:

https://tools.ietf.org/html/draft-lvelvindron-ack-throttling-03


From nobody Tue Sep 11 19:05:29 2018
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Subject: [tcpm] Ben Campbell's No Objection on draft-ietf-tcpm-alternativebackoff-ecn-11: (with COMMENT)
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Ben Campbell has entered the following ballot position for
draft-ietf-tcpm-alternativebackoff-ecn-11: No Objection

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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Thank you for section 8.

Please expand PIE and CoDel on first mention.



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Subject: Re: [tcpm] [Gen-art] Genart last call review of draft-ietf-tcpm-alternativebackoff-ecn-09
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Russ, thanks for your review. Gorry, thanks for your response. I have =
entered a No Objection ballot.

Alissa

> On Aug 17, 2018, at 2:17 PM, Russ Housley <housley@vigilsec.com> =
wrote:
>=20
> Reviewer: Russ Housley
> Review result: Ready
>=20
> I am the assigned Gen-ART reviewer for this draft. The General Area
> Review Team (Gen-ART) reviews all IETF documents being processed
> by the IESG for the IETF Chair.  Please treat these comments just
> like any other last call comments.
>=20
> For more information, please see the FAQ at
> <http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>.
>=20
> Document: draft-ietf-tcpm-alternativebackoff-ecn-09
> Reviewer: Russ Housley
> Review Date: 2018-08-17
> IETF LC End Date: 2018-08-28
> IESG Telechat date: unknown
>=20
> Summary: Ready
>=20
>=20
> Major Concerns:
>=20
> None
>=20
>=20
> Minor Concerns:
>=20
> Section 2: Please update the first paragraph to reference RFC 8174
> in addition to RFC 2119, as follows:=20
>=20
>   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
>   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
>   "OPTIONAL" in this document are to be interpreted as described in =
BCP
>   14 [RFC2119] [RFC8174] when, and only when, they appear in all
>   capitals, as shown here.
>=20
> Section 12.1: Please add a normative reference to RFC 7926.
>=20
>=20
> Nits:
>=20
> Abstract: s/RFC3168/RFC 3168/
>=20
> Section 1: s/RFC8087 [RFC8087]/[RFC8087]/
>=20
> Section 1 says:
>=20
>   However, currently used loss-based congestion control mechanisms
>   cannot always utilise a bottleneck link well where there are short
>   queues.
>=20
> I stumbled on this sentence.  Maybe it would read better if you said
> that current mechanisms sometimes provides poor link utilization when
> queues are short.
>=20
> Section 1: s/allow for short queues only/allow only for short queues/
>=20
> Section 6: s/RFC3168 states/[RFC3168] states/ and
>           s/dropped packet [RFC3168]./dropped packet./
>=20
> Section 6: s/the TCPM WG or IESG/the TCPM WG or the IESG/
>=20
> Section 7" s/TCPM working group/TCPM Working Group/ or /TCPM WG/
>=20
>=20
> _______________________________________________
> Gen-art mailing list
> Gen-art@ietf.org
> https://www.ietf.org/mailman/listinfo/gen-art


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From: Adam Roach <adam@nostrum.com>
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Subject: [tcpm] Adam Roach's Yes on draft-ietf-tcpm-alternativebackoff-ecn-11: (with COMMENT)
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Adam Roach has entered the following ballot position for
draft-ietf-tcpm-alternativebackoff-ecn-11: Yes

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for more information about IESG DISCUSS and COMMENT positions.


The document, along with other ballot positions, can be found here:
https://datatracker.ietf.org/doc/draft-ietf-tcpm-alternativebackoff-ecn/



----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Thanks for a well-written and easy-to-understand document. I find the proposed
experiment quite interesting.

I have a small number of editorial nits that you may want to address if you
produce another version of the document.

---------------------------------------------------------------------------

I-D Nits reports:

  == Unused Reference: 'RFC7713' is defined on line 538, but no explicit
     reference was found in the text

---------------------------------------------------------------------------

General:

  When used as a compound adjective, "congestion control" should be hyphenated.
  e.g.:

  * congestion-control algorithm(s)
  * congestion-control mechanism(s)
  * congestion-control response
  * congestion-control behaviour

---------------------------------------------------------------------------

§1:

>  Recognizing these changes in modern AQM practices,
>  the strict requirement that ECN CE signals be treated identically to
>  inferred packet loss have been relaxed [RFC8311].  This document

Nit: "...has been..."

---------------------------------------------------------------------------

§12.2:

>  [BUFFERBLOAT]
>             Gettys, J. and K. Nichols, "Bufferbloat: Dark Buffers in
>             the Internet", November 2011.

This seems incomplete. I would suggest something more like:

   [BUFFERBLOAT]
              Gettys, J. and K. Nichols, "Bufferbloat: Dark Buffers in the
              Internet", ACM Queue 9, 11, DOI 10.1145/2063166.2071893,
              November 2011, https://queue.acm.org/detail.cfm?id=2071893



From nobody Thu Sep 13 00:09:21 2018
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Date: Thu, 13 Sep 2018 08:09:07 +0100
From: Gorry Fairhurst <gorry@erg.abdn.ac.uk>
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Adam,

Thanks for the comments.
It would be very unusual to hyphenate "congestion control",
so I'd suggest leaving this as-is to be consistent with other RFCs.

I plan to incorporate the other corrections in the next edit.

Gorry

On 13/09/2018, 03:51, Adam Roach wrote:
> Adam Roach has entered the following ballot position for
> draft-ietf-tcpm-alternativebackoff-ecn-11: Yes
>
> When responding, please keep the subject line intact and reply to all
> email addresses included in the To and CC lines. (Feel free to cut this
> introductory paragraph, however.)
>
>
> Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html
> for more information about IESG DISCUSS and COMMENT positions.
>
>
> The document, along with other ballot positions, can be found here:
> https://datatracker.ietf.org/doc/draft-ietf-tcpm-alternativebackoff-ecn/
>
>
>
> ----------------------------------------------------------------------
> COMMENT:
> ----------------------------------------------------------------------
>
> Thanks for a well-written and easy-to-understand document. I find the proposed
> experiment quite interesting.
>
> I have a small number of editorial nits that you may want to address if you
> produce another version of the document.
>
> ---------------------------------------------------------------------------
>
> I-D Nits reports:
>
>    == Unused Reference: 'RFC7713' is defined on line 538, but no explicit
>       reference was found in the text
>
> ---------------------------------------------------------------------------
>
> General:
>
>    When used as a compound adjective, "congestion control" should be hyphenated.
>    e.g.:
>
>    * congestion-control algorithm(s)
>    * congestion-control mechanism(s)
>    * congestion-control response
>    * congestion-control behaviour
>
> ---------------------------------------------------------------------------
>
> §1:
>
>>   Recognizing these changes in modern AQM practices,
>>   the strict requirement that ECN CE signals be treated identically to
>>   inferred packet loss have been relaxed [RFC8311].  This document
> Nit: "...has been..."
>
> ---------------------------------------------------------------------------
>
> §12.2:
>
>>   [BUFFERBLOAT]
>>              Gettys, J. and K. Nichols, "Bufferbloat: Dark Buffers in
>>              the Internet", November 2011.
> This seems incomplete. I would suggest something more like:
>
>     [BUFFERBLOAT]
>                Gettys, J. and K. Nichols, "Bufferbloat: Dark Buffers in the
>                Internet", ACM Queue 9, 11, DOI 10.1145/2063166.2071893,
>                November 2011, https://queue.acm.org/detail.cfm?id=2071893
>


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Subject: Re: [tcpm] Adam Roach's Yes on draft-ietf-tcpm-alternativebackoff-ecn-11: (with COMMENT)
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On 9/13/18 2:09 AM, Gorry Fairhurst wrote:
> Adam,
>
> Thanks for the comments.
> It would be very unusual to hyphenate "congestion control",
> so I'd suggest leaving this as-is to be consistent with other RFCs.


You can, of course, do what you want here, but I'll note that RFC 7233 
is pretty clear about the guidelines used for editorial matters:

>     The world of technical publishing has generally accepted rules for
>     grammar, punctuation, capitalization, sentence length and complexity,
>     parallelism, etc.  The RFC Editor generally follows these accepted
>     rules as defined by the Chicago Manual of Style (CMOS) [CMOS], with a
>     few important exceptions to avoid ambiguity in complex technical
>     prose and to handle mixtures of text and computer languages, or to
>     preserve historical formatting rules.


And CMOS §7.85 indicates that hyphenation is called for in these 
circumstances.

/a


--------------6F1385CE3B8C862BED11AC30
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<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  </head>
  <body text="#000000" bgcolor="#FFFFFF">
    <div class="moz-cite-prefix">On 9/13/18 2:09 AM, Gorry Fairhurst
      wrote:<br>
    </div>
    <blockquote type="cite" cite="mid:5B9A0D13.7060103@erg.abdn.ac.uk">Adam,
      <br>
      <br>
      Thanks for the comments.
      <br>
      It would be very unusual to hyphenate "congestion control",
      <br>
      so I'd suggest leaving this as-is to be consistent with other
      RFCs.</blockquote>
    <p><br>
    </p>
    <p>You can, of course, do what you want here, but I'll note that RFC
      7233 is pretty clear about the guidelines used for editorial
      matters:<br>
    </p>
    <p>
      <blockquote type="cite">
        <pre>   The world of technical publishing has generally accepted rules for
   grammar, punctuation, capitalization, sentence length and complexity,
   parallelism, etc.  The RFC Editor generally follows these accepted
   rules as defined by the Chicago Manual of Style (CMOS) [CMOS], with a
   few important exceptions to avoid ambiguity in complex technical
   prose and to handle mixtures of text and computer languages, or to
   preserve historical formatting rules.</pre>
      </blockquote>
    </p>
    <p><br>
    </p>
    <p>And CMOS §7.85 indicates that hyphenation is called for in these
      circumstances.<br>
    </p>
    <p>/a<br>
    </p>
  </body>
</html>

--------------6F1385CE3B8C862BED11AC30--


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Date: Thu, 13 Sep 2018 07:32:56 +0000
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Subject: Re: [tcpm] Adam Roach's Yes on draft-ietf-tcpm-alternativebackoff-ecn-11: (with COMMENT)
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For what it is worth, RFC 5681 uses the term "congestion control algorithm"=
. IMHO we should not change the term.

Michael


________________________________
Von: Adam Roach [adam@nostrum.com]
Gesendet: Donnerstag, 13. September 2018 09:25
An: gorry@erg.abdn.ac.uk
Cc: tcpm@ietf.org; Michael T=FCxen; The IESG; tcpm-chairs@ietf.org; draft-i=
etf-tcpm-alternativebackoff-ecn@ietf.org
Betreff: Re: Adam Roach's Yes on draft-ietf-tcpm-alternativebackoff-ecn-11:=
 (with COMMENT)

On 9/13/18 2:09 AM, Gorry Fairhurst wrote:
Adam,

Thanks for the comments.
It would be very unusual to hyphenate "congestion control",
so I'd suggest leaving this as-is to be consistent with other RFCs.


You can, of course, do what you want here, but I'll note that RFC 7233 is p=
retty clear about the guidelines used for editorial matters:

   The world of technical publishing has generally accepted rules for
   grammar, punctuation, capitalization, sentence length and complexity,
   parallelism, etc.  The RFC Editor generally follows these accepted
   rules as defined by the Chicago Manual of Style (CMOS) [CMOS], with a
   few important exceptions to avoid ambiguity in complex technical
   prose and to handle mixtures of text and computer languages, or to
   preserve historical formatting rules.


And CMOS =A77.85 indicates that hyphenation is called for in these circumst=
ances.

/a

--_000_6EC6417807D9754DA64F3087E2E2E03E16BD37AFrznt8114rzntrzd_
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<html dir=3D"ltr">
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1">
<style id=3D"owaParaStyle" type=3D"text/css"></style>
</head>
<body bgcolor=3D"#ffffff" fpstyle=3D"1" ocsi=3D"0">
<div style=3D"direction: ltr;font-family: Tahoma;color: #000000;font-size: =
10pt;">
<div>For what it is worth, RFC 5681 uses the term &quot;congestion control =
algorithm&quot;. IMHO we should not change the term.</div>
<div><br>
</div>
<div>Michael&nbsp;</div>
<div><br>
</div>
<div><br>
</div>
<div style=3D"font-family: Times New Roman; color: #000000; font-size: 16px=
">
<hr tabindex=3D"-1">
<div id=3D"divRpF426385" style=3D"direction: ltr;"><font color=3D"#000000" =
face=3D"Tahoma" size=3D"2"><b>Von:</b> Adam Roach [adam@nostrum.com]<br>
<b>Gesendet:</b> Donnerstag, 13. September 2018 09:25<br>
<b>An:</b> gorry@erg.abdn.ac.uk<br>
<b>Cc:</b> tcpm@ietf.org; Michael T=FCxen; The IESG; tcpm-chairs@ietf.org; =
draft-ietf-tcpm-alternativebackoff-ecn@ietf.org<br>
<b>Betreff:</b> Re: Adam Roach's Yes on draft-ietf-tcpm-alternativebackoff-=
ecn-11: (with COMMENT)<br>
</font><br>
</div>
<div></div>
<div>
<div class=3D"moz-cite-prefix">On 9/13/18 2:09 AM, Gorry Fairhurst wrote:<b=
r>
</div>
<blockquote type=3D"cite">Adam, <br>
<br>
Thanks for the comments. <br>
It would be very unusual to hyphenate &quot;congestion control&quot;, <br>
so I'd suggest leaving this as-is to be consistent with other RFCs.</blockq=
uote>
<p><br>
</p>
<p>You can, of course, do what you want here, but I'll note that RFC 7233 i=
s pretty clear about the guidelines used for editorial matters:<br>
</p>
<p></p>
<blockquote type=3D"cite">
<pre>   The world of technical publishing has generally accepted rules for=
=0A=
   grammar, punctuation, capitalization, sentence length and complexity,=0A=
   parallelism, etc.  The RFC Editor generally follows these accepted=0A=
   rules as defined by the Chicago Manual of Style (CMOS) [CMOS], with a=0A=
   few important exceptions to avoid ambiguity in complex technical=0A=
   prose and to handle mixtures of text and computer languages, or to=0A=
   preserve historical formatting rules.</pre>
</blockquote>
<p></p>
<p><br>
</p>
<p>And CMOS =A77.85 indicates that hyphenation is called for in these circu=
mstances.<br>
</p>
<p>/a<br>
</p>
</div>
</div>
</div>
</body>
</html>

--_000_6EC6417807D9754DA64F3087E2E2E03E16BD37AFrznt8114rzntrzd_--


From nobody Thu Sep 13 07:16:54 2018
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From: Ben Campbell <ben@nostrum.com>
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Subject: [tcpm] Ben Campbell's No Objection on draft-ietf-tcpm-alternativebackoff-ecn-11: (with COMMENT)
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Ben Campbell has entered the following ballot position for
draft-ietf-tcpm-alternativebackoff-ecn-11: No Objection

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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Update: Adam pointed out I thanked the authors for an empty IANA section. I
meant section _6_, the Experiment Goals section.

Thank you for section 8.

Please expand PIE and CoDel on first mention.



From nobody Thu Sep 13 23:34:51 2018
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Subject: [tcpm] I-D Action: draft-ietf-tcpm-alternativebackoff-ecn-12.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 TCP Maintenance and Minor Extensions WG of the IETF.

        Title           : TCP Alternative Backoff with ECN (ABE)
        Authors         : Naeem Khademi
                          Michael Welzl
                          Grenville Armitage
                          Godred Fairhurst
	Filename        : draft-ietf-tcpm-alternativebackoff-ecn-12.txt
	Pages           : 13
	Date            : 2018-09-13

Abstract:
   Active Queue Management (AQM) mechanisms allow for burst tolerance
   while enforcing short queues to minimise the time that packets spend
   enqueued at a bottleneck.  This can cause noticeable performance
   degradation for TCP connections traversing such a bottleneck,
   especially if there are only a few flows or their bandwidth-delay-
   product is large.  The reception of a Congestion Experienced (CE) ECN
   mark indicates that an AQM mechanism is used at the bottleneck, and
   therefore the bottleneck network queue is likely to be short.
   Feedback of this signal allows the TCP sender-side ECN reaction in
   congestion avoidance to reduce the Congestion Window (cwnd) by a
   smaller amount than the congestion control algorithm's reaction to
   inferred packet loss.  This specification therefore defines an
   experimental change to the TCP reaction specified in RFC3168, as
   permitted by RFC 8311.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-tcpm-alternativebackoff-ecn/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-tcpm-alternativebackoff-ecn-12
https://datatracker.ietf.org/doc/html/draft-ietf-tcpm-alternativebackoff-ecn-12

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-tcpm-alternativebackoff-ecn-12


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until the htmlized version and diff are available at tools.ietf.org.

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From nobody Wed Sep 26 10:49:13 2018
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Date: Wed, 26 Sep 2018 10:49:03 -0700
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Subject: [tcpm] usage for timestamp options in the wild
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--000000000000983eb80576c9d678
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Hello,
this is just out of my curiosity.
I've checked traffic archives in CAIDA (https://data.caida.org/datasets/)
and WIDE (http://mawi.wide.ad.jp/mawi/) on a whim and tried to see how many
connections utilize timestamps.

As far as I've checked some archives recently captured, it seems that
around 60-70% TCP connections use timestamp option. But, this ratio seems
to be a bit lower as I thought most of implementations these days support
TS option and activate it by default.
Does anyone have some ideas about it? Am I looking at uncommon data? Or
there are still many old implementations around? Or, many users have
disabled the option for some reasons?
--
Yoshi

--000000000000983eb80576c9d678
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<div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr">Hello,<div>this is just =
out of my curiosity.</div><div>I&#39;ve checked traffic archives in CAIDA (=
<a href=3D"https://data.caida.org/datasets/">https://data.caida.org/dataset=
s/</a>) and WIDE (<a href=3D"http://mawi.wide.ad.jp/mawi/">http://mawi.wide=
.ad.jp/mawi/</a>) on a whim and tried to see how many connections utilize t=
imestamps.<br></div><div><br></div><div>As far as I&#39;ve checked some arc=
hives recently captured, it seems that around 60-70% TCP connections use ti=
mestamp option. But, this ratio seems to be a bit lower as I thought most o=
f implementations these days support TS option and activate it by default.<=
/div><div>Does anyone have some ideas about it? Am I looking at uncommon da=
ta? Or there are still many old implementations around? Or, many users have=
 disabled the option for some reasons?=C2=A0</div><div>--<br></div><div>Yos=
hi</div><div><br></div><div><br></div></div></div></div>

--000000000000983eb80576c9d678--


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From: Praveen Balasubramanian <pravb@microsoft.com>
To: Yoshifumi Nishida <nishida@sfc.wide.ad.jp>, "tcpm@ietf.org" <tcpm@ietf.org>
Thread-Topic: [tcpm] usage for timestamp options in the wild
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Archived-At: <https://mailarchive.ietf.org/arch/msg/tcpm/UZc9JAggjzV-93txAstwo4auDtQ>
Subject: Re: [tcpm] usage for timestamp options in the wild
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From: Yuchung Cheng <ycheng@google.com>
Date: Wed, 26 Sep 2018 11:37:09 -0700
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To: Praveen Balasubramanian <pravb=40microsoft.com@dmarc.ietf.org>
Cc: Yoshifumi Nishida <nishida@sfc.wide.ad.jp>, "tcpm@ietf.org" <tcpm@ietf.org>
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Subject: Re: [tcpm] usage for timestamp options in the wild
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On Wed, Sep 26, 2018 at 11:21 AM, Praveen Balasubramanian
<pravb=3D40microsoft.com@dmarc.ietf.org> wrote:
>
> Windows doesn=E2=80=99t do timestamp option by default. It=E2=80=99s 10 b=
yte per packet overhead for marginal benefits.
>
>
>
> From: tcpm <tcpm-bounces@ietf.org> On Behalf Of Yoshifumi Nishida
> Sent: Wednesday, September 26, 2018 10:49 AM
> To: tcpm@ietf.org
> Subject: [tcpm] usage for timestamp options in the wild
>
>
>
> Hello,
>
> this is just out of my curiosity.
>
> I've checked traffic archives in CAIDA (https://data.caida.org/datasets/)=
 and WIDE (http://mawi.wide..ad.jp/mawi/) on a whim and tried to see how ma=
ny connections utilize timestamps.
>
>
>
> As far as I've checked some archives recently captured, it seems that aro=
und 60-70% TCP connections use timestamp option. But, this ratio seems to b=
e a bit lower as I thought most of implementations these days support TS op=
tion and activate it by default.
how recent are the archives?

AFAIK TS is enabled by default on Linux, FreeBSD, and iOS. Linux has
that by default more than a decade

>
> Does anyone have some ideas about it? Am I looking at uncommon data? Or t=
here are still many old implementations around? Or, many users have disable=
d the option for some reasons?
>
> --
>
> Yoshi
>
>
>
>
>
>
> _______________________________________________
> tcpm mailing list
> tcpm@ietf.org
> https://www.ietf.org/mailman/listinfo/tcpm
>


From nobody Wed Sep 26 12:44:06 2018
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From: Yoshifumi Nishida <nishida@sfc.wide.ad.jp>
Date: Wed, 26 Sep 2018 12:43:55 -0700
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To: Yuchung Cheng <ycheng@google.com>
Cc: Praveen Balasubramanian <pravb=40microsoft.com@dmarc.ietf.org>,  Yoshifumi Nishida <nishida@sfc.wide.ad.jp>, "tcpm@ietf.org" <tcpm@ietf.org>
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--00000000000067f5420576cb717c
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On Wed, Sep 26, 2018 at 11:37 AM, Yuchung Cheng <ycheng@google.com> wrote:

> On Wed, Sep 26, 2018 at 11:21 AM, Praveen Balasubramanian
> <pravb=3D40microsoft.com@dmarc.ietf.org> wrote:
> >
> > Windows doesn=E2=80=99t do timestamp option by default. It=E2=80=99s 10=
 byte per packet
> overhead for marginal benefits.
> >
> >
> >
> > From: tcpm <tcpm-bounces@ietf.org> On Behalf Of Yoshifumi Nishida
> > Sent: Wednesday, September 26, 2018 10:49 AM
> > To: tcpm@ietf.org
> > Subject: [tcpm] usage for timestamp options in the wild
> >
> >
> >
> > Hello,
> >
> > this is just out of my curiosity.
> >
> > I've checked traffic archives in CAIDA (https://data.caida.org/datasets=
/)
> and WIDE (http://mawi.wide..ad.jp/mawi/) on a whim and tried to see how
> many connections utilize timestamps.
> >
> >
> >
> > As far as I've checked some archives recently captured, it seems that
> around 60-70% TCP connections use timestamp option. But, this ratio seems
> to be a bit lower as I thought most of implementations these days support
> TS option and activate it by default.
> how recent are the archives?
>

They are 2018 data.

>
> AFAIK TS is enabled by default on Linux, FreeBSD, and iOS. Linux has
> that by default more than a decade
>

that's why I was wondering.
--
Yoshi

--00000000000067f5420576cb717c
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div c=
lass=3D"gmail_quote">On Wed, Sep 26, 2018 at 11:37 AM, Yuchung Cheng <span =
dir=3D"ltr">&lt;<a href=3D"mailto:ycheng@google.com" target=3D"_blank">yche=
ng@google.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" st=
yle=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padd=
ing-left:1ex"><span>On Wed, Sep 26, 2018 at 11:21 AM, Praveen Balasubramani=
an<br>
&lt;pravb=3D<a href=3D"mailto:40microsoft.com@dmarc.ietf.org" target=3D"_bl=
ank">40microsoft.com@dmarc.i<wbr>etf.org</a>&gt; wrote:<br>
&gt;<br>
&gt; Windows doesn=E2=80=99t do timestamp option by default. It=E2=80=99s 1=
0 byte per packet overhead for marginal benefits.<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; From: tcpm &lt;<a href=3D"mailto:tcpm-bounces@ietf.org" target=3D"_bla=
nk">tcpm-bounces@ietf.org</a>&gt; On Behalf Of Yoshifumi Nishida<br>
&gt; Sent: Wednesday, September 26, 2018 10:49 AM<br>
&gt; To: <a href=3D"mailto:tcpm@ietf.org" target=3D"_blank">tcpm@ietf.org</=
a><br>
&gt; Subject: [tcpm] usage for timestamp options in the wild<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; Hello,<br>
&gt;<br>
&gt; this is just out of my curiosity.<br>
&gt;<br>
&gt; I&#39;ve checked traffic archives in CAIDA (<a href=3D"https://data.ca=
ida.org/datasets/" rel=3D"noreferrer" target=3D"_blank">https://data.caida.=
org/datase<wbr>ts/</a>) and WIDE (<a href=3D"http://mawi.wide." rel=3D"nore=
ferrer" target=3D"_blank">http://mawi.wide.</a>.<a href=3D"http://ad.jp/maw=
i/" rel=3D"noreferrer" target=3D"_blank">ad.jp/mawi/</a><wbr>) on a whim an=
d tried to see how many connections utilize timestamps.<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; As far as I&#39;ve checked some archives recently captured, it seems t=
hat around 60-70% TCP connections use timestamp option. But, this ratio see=
ms to be a bit lower as I thought most of implementations these days suppor=
t TS option and activate it by default.<br>
</span>how recent are the archives?<br></blockquote><div><br></div><div>The=
y are 2018 data.=C2=A0</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">
<br>
AFAIK TS is enabled by default on Linux, FreeBSD, and iOS. Linux has<br>
that by default more than a decade<br></blockquote><div><br></div><div>that=
&#39;s why I was wondering.</div><div>--</div><div>Yoshi=C2=A0</div><div>=
=C2=A0</div></div></div></div></div>

--00000000000067f5420576cb717c--


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Subject: Re: [tcpm] usage for timestamp options in the wild
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Hi Praveen,

On Wed, Sep 26, 2018 at 11:21 AM, Praveen Balasubramanian <
pravb@microsoft.com> wrote:

> Windows doesn=E2=80=99t do timestamp option by default. It=E2=80=99s 10 b=
yte per packet
> overhead for marginal benefits.
>

Interesting. So, windows derives RTO only from ACK arrival time?
--
Yoshi


>
>
> *From:* tcpm <tcpm-bounces@ietf.org> *On Behalf Of * Yoshifumi Nishida
> *Sent:* Wednesday, September 26, 2018 10:49 AM
> *To:* tcpm@ietf.org
> *Subject:* [tcpm] usage for timestamp options in the wild
>
>
>
> Hello,
>
> this is just out of my curiosity.
>
> I've checked traffic archives in CAIDA (https://data.caida.org/datasets/
> <https://na01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdata.=
caida.org%2Fdatasets%2F&data=3D02%7C01%7Cpravb%40microsoft.com%7Ccba356afa7=
e34779babf08d623d86481%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C6367358=
09644749695&sdata=3DwUz0HExJ2m3RePYxM0abwYwPhl2UeANaV8NAg%2ByKk9c%3D&reserv=
ed=3D0>)
> and WIDE (http://mawi.wide..ad.jp/mawi/
> <https://na01.safelinks.protection.outlook.com/?url=3Dhttp%3A%2F%2Fmawi.w=
ide.ad.jp%2Fmawi%2F&data=3D02%7C01%7Cpravb%40microsoft.com%7Ccba356afa7e347=
79babf08d623d86481%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C63673580964=
4759707&sdata=3DXgSjCziCC%2BuoJAynXixBQObdqmAk%2FlBxZ%2FTR2CMF3Gk%3D&reserv=
ed=3D0>)
> on a whim and tried to see how many connections utilize timestamps.
>
>
>
> As far as I've checked some archives recently captured, it seems that
> around 60-70% TCP connections use timestamp option. But, this ratio seems
> to be a bit lower as I thought most of implementations these days support
> TS option and activate it by default.
>
> Does anyone have some ideas about it? Am I looking at uncommon data? Or
> there are still many old implementations around? Or, many users have
> disabled the option for some reasons?
>
> --
>
> Yoshi
>
>
>
>
>

--0000000000006321e70576cb8047
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hi Praveen,<div><div class=3D"gmail_extra"><br><div class=
=3D"gmail_quote">On Wed, Sep 26, 2018 at 11:21 AM, Praveen Balasubramanian =
<span dir=3D"ltr">&lt;<a href=3D"mailto:pravb@microsoft.com" target=3D"_bla=
nk">pravb@microsoft.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail=
_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:=
1ex">





<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"m_-8716607760611120608WordSection1">
<p class=3D"MsoNormal">Windows doesn=E2=80=99t do timestamp option by defau=
lt. It=E2=80=99s 10 byte per packet overhead for marginal benefits.</p></di=
v></div></blockquote><div><br></div><div>Interesting. So, windows derives R=
TO only from ACK arrival time?=C2=A0</div><div>--</div><div>Yoshi</div><div=
>=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;b=
order-left:1px #ccc solid;padding-left:1ex"><div lang=3D"EN-US" link=3D"blu=
e" vlink=3D"purple"><div class=3D"m_-8716607760611120608WordSection1"><p cl=
ass=3D"MsoNormal"><u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><b>From:</b> tcpm &lt;<a href=3D"mailto:tcpm-bounces=
@ietf.org" target=3D"_blank">tcpm-bounces@ietf.org</a>&gt; <b>On Behalf Of =
</b>
Yoshifumi Nishida<br>
<b>Sent:</b> Wednesday, September 26, 2018 10:49 AM<br>
<b>To:</b> <a href=3D"mailto:tcpm@ietf.org" target=3D"_blank">tcpm@ietf.org=
</a><br>
<b>Subject:</b> [tcpm] usage for timestamp options in the wild<u></u><u></u=
></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div>
<div><span class=3D"">
<p class=3D"MsoNormal">Hello,<u></u><u></u></p>
<div>
<p class=3D"MsoNormal">this is just out of my curiosity.<u></u><u></u></p>
</div>
</span><div>
<p class=3D"MsoNormal">I&#39;ve checked traffic archives in CAIDA (<a href=
=3D"https://na01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdata=
.caida.org%2Fdatasets%2F&amp;data=3D02%7C01%7Cpravb%40microsoft.com%7Ccba35=
6afa7e34779babf08d623d86481%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C63=
6735809644749695&amp;sdata=3DwUz0HExJ2m3RePYxM0abwYwPhl2UeANaV8NAg%2ByKk9c%=
3D&amp;reserved=3D0" target=3D"_blank">https://data.caida.org/<wbr>datasets=
/</a>)
 and WIDE (<a href=3D"https://na01.safelinks.protection.outlook.com/?url=3D=
http%3A%2F%2Fmawi.wide.ad.jp%2Fmawi%2F&amp;data=3D02%7C01%7Cpravb%40microso=
ft.com%7Ccba356afa7e34779babf08d623d86481%7C72f988bf86f141af91ab2d7cd011db4=
7%7C1%7C0%7C636735809644759707&amp;sdata=3DXgSjCziCC%2BuoJAynXixBQObdqmAk%2=
FlBxZ%2FTR2CMF3Gk%3D&amp;reserved=3D0" target=3D"_blank">http://mawi.wide..=
ad.jp/mawi/</a><wbr>)
 on a whim and tried to see how many connections utilize timestamps.<u></u>=
<u></u></p>
</div><span class=3D"">
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">As far as I&#39;ve checked some archives recently ca=
ptured, it seems that around 60-70% TCP connections use timestamp option. B=
ut, this ratio seems to be a bit lower as I thought most of implementations=
 these days support TS option and activate
 it by default.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Does anyone have some ideas about it? Am I looking a=
t uncommon data? Or there are still many old implementations around? Or, ma=
ny users have disabled the option for some reasons?=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">--<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Yoshi<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</span></div>
</div>
</div>
</div>
</div>

</blockquote></div><br></div></div></div>

--0000000000006321e70576cb8047--


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From: Praveen Balasubramanian <pravb@microsoft.com>
To: Yoshifumi Nishida <nishida@sfc.wide.ad.jp>
CC: "tcpm@ietf.org" <tcpm@ietf.org>
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Subject: Re: [tcpm] usage for timestamp options in the wild
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From: Yoshifumi Nishida <nishida@sfc.wide.ad.jp>
Date: Wed, 26 Sep 2018 20:43:47 -0700
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To: Praveen Balasubramanian <pravb@microsoft.com>
Cc: Yoshifumi Nishida <nishida@sfc.wide.ad.jp>, "tcpm@ietf.org" <tcpm@ietf.org>
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Subject: Re: [tcpm] usage for timestamp options in the wild
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--000000000000849ba50576d225ee
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

Hi Praveen,
Sorry, I was not clear enough... I was interested in how windows samples
RTT.

I mean, I am interesting in knowing if the conventional once per RTT
samplings can archive sufficient results
or recording the transmission time of sending packets like RACK can
compensate the lack of TS options.
--
Yoshi

On Wed, Sep 26, 2018 at 1:36 PM, Praveen Balasubramanian <
pravb@microsoft.com> wrote:

> It follows RFC 6298 and RTO is based on SRtt and RttVar. RTT sample
> measurement will make use of timestamps when present or just use ACK
> arrival time. As a side result of RACK implementation, the number of RTT
> samples taken per RTT was increased. See Section 2 and 3 in RFC 6298.
>
>
>
> *From:* Yoshifumi Nishida <nishida@sfc.wide.ad.jp>
> *Sent:* Wednesday, September 26, 2018 12:48 PM
> *To:* Praveen Balasubramanian <pravb@microsoft.com>
> *Cc:* Yoshifumi Nishida <nishida@sfc.wide.ad.jp>; tcpm@ietf.org
> *Subject:* Re: [tcpm] usage for timestamp options in the wild
>
>
>
> Hi Praveen,
>
>
>
> On Wed, Sep 26, 2018 at 11:21 AM, Praveen Balasubramanian <
> pravb@microsoft.com> wrote:
>
> Windows doesn=E2=80=99t do timestamp option by default. It=E2=80=99s 10 b=
yte per packet
> overhead for marginal benefits.
>
>
>
> Interesting. So, windows derives RTO only from ACK arrival time?
>
> --
>
> Yoshi
>
>
>
>
>
> *From:* tcpm <tcpm-bounces@ietf.org> *On Behalf Of *Yoshifumi Nishida
> *Sent:* Wednesday, September 26, 2018 10:49 AM
> *To:* tcpm@ietf.org
> *Subject:* [tcpm] usage for timestamp options in the wild
>
>
>
> Hello,
>
> this is just out of my curiosity.
>
> I've checked traffic archives in CAIDA (https://data.caida.org/datasets/
> <https://na01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdata.=
caida.org%2Fdatasets%2F&data=3D02%7C01%7Cpravb%40microsoft.com%7C27cca6cac8=
fd49d98f6908d623ee27fb%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C6367359=
03152884299&sdata=3DlMPj3nuM%2FiNU8HBirxJQ6L%2Bg5N5ABT3McVOpVq5ZOW0%3D&rese=
rved=3D0>)
> and WIDE (http://mawi.wide..ad.jp/mawi/
> <https://na01.safelinks.protection.outlook.com/?url=3Dhttp%3A%2F%2Fmawi.w=
ide.ad.jp%2Fmawi%2F&data=3D02%7C01%7Cpravb%40microsoft.com%7C27cca6cac8fd49=
d98f6908d623ee27fb%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C63673590315=
2894308&sdata=3DJE%2Ba6m7ElaS6bU4ITuoLb48ack%2FNfQTjOYkHJp7Ax6A%3D&reserved=
=3D0>)
> on a whim and tried to see how many connections utilize timestamps.
>
>
>
> As far as I've checked some archives recently captured, it seems that
> around 60-70% TCP connections use timestamp option. But, this ratio seems
> to be a bit lower as I thought most of implementations these days support
> TS option and activate it by default.
>
> Does anyone have some ideas about it? Am I looking at uncommon data? Or
> there are still many old implementations around? Or, many users have
> disabled the option for some reasons?
>
> --
>
> Yoshi
>
>
>
>
>
>
>

--000000000000849ba50576d225ee
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr"><div>Hi Praveen,</div>Sorry, I was not cl=
ear enough... I was interested in how windows samples RTT.</div><div dir=3D=
"ltr"><br><div><div>I mean, I am interesting in knowing if the conventional=
 once per RTT samplings can archive sufficient results</div><div>or recordi=
ng the transmission time of sending packets like RACK can compensate the la=
ck of TS options.</div><div>--</div><div>Yoshi</div><div><div class=3D"gmai=
l_extra"><br><div class=3D"gmail_quote">On Wed, Sep 26, 2018 at 1:36 PM, Pr=
aveen Balasubramanian <span dir=3D"ltr">&lt;<a href=3D"mailto:pravb@microso=
ft.com" target=3D"_blank">pravb@microsoft.com</a>&gt;</span> wrote:<br><blo=
ckquote 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_1202322463506039541WordSection1">
<p class=3D"MsoNormal">It follows RFC 6298 and RTO is based on SRtt and Rtt=
Var. RTT sample measurement will make use of timestamps when present or jus=
t use ACK arrival time. As a side result of RACK implementation, the number=
 of RTT samples taken per RTT was
 increased. See Section 2 and 3 in RFC 6298.<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><b>From:</b> Yoshifumi Nishida &lt;<a href=3D"mailto=
:nishida@sfc.wide.ad.jp" target=3D"_blank">nishida@sfc.wide.ad.jp</a>&gt; <=
br>
<b>Sent:</b> Wednesday, September 26, 2018 12:48 PM<br>
<b>To:</b> Praveen Balasubramanian &lt;<a href=3D"mailto:pravb@microsoft.co=
m" target=3D"_blank">pravb@microsoft.com</a>&gt;<br>
<b>Cc:</b> Yoshifumi Nishida &lt;<a href=3D"mailto:nishida@sfc.wide.ad.jp" =
target=3D"_blank">nishida@sfc.wide.ad.jp</a>&gt;; <a href=3D"mailto:tcpm@ie=
tf.org" target=3D"_blank">tcpm@ietf.org</a><br>
<b>Subject:</b> Re: [tcpm] usage for timestamp options in the wild<u></u><u=
></u></p><div><div class=3D"gmail-h5">
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<p class=3D"MsoNormal">Hi Praveen,<u></u><u></u></p>
<div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<p class=3D"MsoNormal">On Wed, Sep 26, 2018 at 11:21 AM, Praveen Balasubram=
anian &lt;<a href=3D"mailto:pravb@microsoft.com" target=3D"_blank">pravb@mi=
crosoft.com</a>&gt; wrote:<u></u><u></u></p>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin-left:4=
.8pt;margin-right:0in">
<div>
<div>
<p class=3D"MsoNormal">Windows doesn=E2=80=99t do timestamp option by defau=
lt. It=E2=80=99s 10 byte per packet overhead for marginal benefits.<u></u><=
u></u></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Interesting. So, windows derives RTO only from ACK a=
rrival time?=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">--<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Yoshi<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin-left:4=
.8pt;margin-right:0in">
<div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal"><b>From:</b> tcpm &lt;<a href=3D"mailto:tcpm-bounces=
@ietf.org" target=3D"_blank">tcpm-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b>Yoshifumi Nishida<br>
<b>Sent:</b> Wednesday, September 26, 2018 10:49 AM<br>
<b>To:</b> <a href=3D"mailto:tcpm@ietf.org" target=3D"_blank">tcpm@ietf.org=
</a><br>
<b>Subject:</b> [tcpm] usage for timestamp options in the wild<u></u><u></u=
></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<div>
<div>
<div>
<p class=3D"MsoNormal">Hello,<u></u><u></u></p>
<div>
<p class=3D"MsoNormal">this is just out of my curiosity.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">I&#39;ve checked traffic archives in CAIDA (<a href=
=3D"https://na01.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fdata=
.caida.org%2Fdatasets%2F&amp;data=3D02%7C01%7Cpravb%40microsoft.com%7C27cca=
6cac8fd49d98f6908d623ee27fb%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C63=
6735903152884299&amp;sdata=3DlMPj3nuM%2FiNU8HBirxJQ6L%2Bg5N5ABT3McVOpVq5ZOW=
0%3D&amp;reserved=3D0" target=3D"_blank">https://data.caida.org/<wbr>datase=
ts/</a>)
 and WIDE (<a href=3D"https://na01.safelinks.protection.outlook.com/?url=3D=
http%3A%2F%2Fmawi.wide.ad.jp%2Fmawi%2F&amp;data=3D02%7C01%7Cpravb%40microso=
ft.com%7C27cca6cac8fd49d98f6908d623ee27fb%7C72f988bf86f141af91ab2d7cd011db4=
7%7C1%7C0%7C636735903152894308&amp;sdata=3DJE%2Ba6m7ElaS6bU4ITuoLb48ack%2FN=
fQTjOYkHJp7Ax6A%3D&amp;reserved=3D0" target=3D"_blank">http://mawi.wide..ad=
.jp/mawi/</a><wbr>)
 on a whim and tried to see how many connections utilize timestamps.<u></u>=
<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">As far as I&#39;ve checked some archives recently ca=
ptured, it seems that around 60-70% TCP connections use timestamp option. B=
ut, this ratio seems to be a bit lower as I thought most
 of implementations these days support TS option and activate it by default=
.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Does anyone have some ideas about it? Am I looking a=
t uncommon data? Or there are still many old implementations around? Or, ma=
ny users have disabled the option for some reasons?=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">--<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Yoshi<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>
</div>
</div></div></div>
</div>

</blockquote></div><br></div></div></div></div></div>

--000000000000849ba50576d225ee--


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From: Praveen Balasubramanian <pravb@microsoft.com>
To: Yoshifumi Nishida <nishida@sfc.wide.ad.jp>
CC: "tcpm@ietf.org" <tcpm@ietf.org>
Thread-Topic: [tcpm] usage for timestamp options in the wild
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Subject: Re: [tcpm] usage for timestamp options in the wild
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On Wed, Sep 26, 2018 at 12:43 PM, Yoshifumi Nishida
<nishida@sfc.wide.ad.jp> wrote:
>
>
>
> On Wed, Sep 26, 2018 at 11:37 AM, Yuchung Cheng <ycheng@google.com> wrote=
:
>>
>> On Wed, Sep 26, 2018 at 11:21 AM, Praveen Balasubramanian
>> <pravb=3D40microsoft.com@dmarc.ietf.org> wrote:
>> >
>> > Windows doesn=E2=80=99t do timestamp option by default. It=E2=80=99s 1=
0 byte per packet overhead for marginal benefits.
>> >
>> >
>> >
>> > From: tcpm <tcpm-bounces@ietf.org> On Behalf Of Yoshifumi Nishida
>> > Sent: Wednesday, September 26, 2018 10:49 AM
>> > To: tcpm@ietf.org
>> > Subject: [tcpm] usage for timestamp options in the wild
>> >
>> >
>> >
>> > Hello,
>> >
>> > this is just out of my curiosity.
>> >
>> > I've checked traffic archives in CAIDA (https://data.caida.org/dataset=
s/) and WIDE (http://mawi.wide..ad.jp/mawi/) on a whim and tried to see how=
 many connections utilize timestamps.
>> >
>> >
>> >
>> > As far as I've checked some archives recently captured, it seems that =
around 60-70% TCP connections use timestamp option. But, this ratio seems t=
o be a bit lower as I thought most of implementations these days support TS=
 option and activate it by default.
>> how recent are the archives?
>
>
> They are 2018 data.
There's some number dated in 2011

"2. GOOGLE MEASUREMENTS We sampled TCP statistics on unmodified Google
Web servers world-wide for one week in May 2011. The servers use a
recent version of Linux 2.6 with settings listed in Table 4. The
servers do not include the changes proposed in this paper. The global
statistics for interactive Web services are summarized in Table 1.
Among the billions of connections sampled, 96% of the connections
negotiated SACK but only 12% of the connections negotiated Timestamps.
The majority of clients are Microsoft Windows which by default do not
use TCP Timestamps."
https://storage.googleapis.com/pub-tools-public-publication-data/pdf/37486.=
pdf

While this is comparing apple (google) to oranges (caida), I would say
70% is already a significant jump.


However I am sensing that the value of TCP timestamp options is
under-valued - Linux for example uses TS for many things:

1. RTT estimation on retransmission - this is crucial when a TCP is in
constant recovery mode such as encountering a traffic policer. Note
that the standard ACK time approach no longer works if any sequence
acked has been transmitted, thus RTO may stale during extended
recovery period.

2. Undo operations (i.e. TCP Eifel RFC4015) requires TCP timestamps -
being able to detect false reactions to losses is particularly key for
"loss-based" congestion control. Such false positives are common in
wireless or even wired networks due to all sorts of dark queues and L2
optimizations. While DSACK and F-RTO can also be used to detect false
recoveries - both of them take at least one more round-trip and/or
require new application data, while timestamp can detect false
retransmission instantly on the original ACK

3. Receiver buffer auto-tuning uses TCP ACKs' TS value to echo to
measure RTT from the receiver to tune the buffer size.

4. Potentially TCP timestamps being generated with known units, can be
used to gauge the data arrival rate. The measurement can be valuable
for congestion control b/c it's not subject to hectic ACK delays in
modern networks. I know folks at NetFlix is doing some deep research
into this aspect.


QUIC has emphasized the importance of unique packet identifier - TCP
TS provides a close equivalent and is super useful, especially w/ more
precision / unit vs an opaque value.

>>
>>
>> AFAIK TS is enabled by default on Linux, FreeBSD, and iOS. Linux has
>> that by default more than a decade
>
>
> that's why I was wondering.
> --
> Yoshi
>

