Re: [tcpm] Reminder: WGLC for draft-ietf-tcpm-accurate-ecn-26

Markku Kojo <kojo@cs.helsinki.fi> Mon, 06 November 2023 10:10 UTC

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From: Markku Kojo <kojo@cs.helsinki.fi>
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Date: Mon, 06 Nov 2023 10:09:56 +0000
Cc: tcpm IETF list <tcpm@ietf.org>
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Subject: Re: [tcpm] Reminder: WGLC for draft-ietf-tcpm-accurate-ecn-26
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Hi Michael,

catching up…

I am afraid that the crucial piece not addressed is that this approach assumes that by enabling SACK would also enable DSACK in full which is not the case. Therefore, the suggested rule in ECN++ does not result in correct operation for RACK-TLP and F-RTO. It requires correct impöementation at both ends.

I’ve already tried to explain this earlier but try to come up with a detailed list clarifying the actions needed at each end later today.

Thanks,

/Markku


> tuexen@fh-muenster.de kirjoitti 27.10.2023 kello 19.35:
> 
> 
>> 
>> On Sep 21, 2023, at 19:51, tuexen@fh-muenster.de wrote:
>> 
>> Dear all,
>> 
>> this e-mail is a gentle reminder for the 2nd working group last call for
>> draft-ietf-tcpm-accurate-ecn-26.
>> 
>> The WGLC runs until Friday, September 22nd 2023.
>> 
>> Please send any comments, including indications to support this document,
>> to the TCMP mailing list by then.
>> 
>> In particular, if you have made comments during the first WGLC, indicate whether
>> the comments have been addressed or not.
>> 
>> The ID is available at
>> https://www.ietf.org/archive/id/draft-ietf-tcpm-accurate-ecn-26.html
> Dear all,
> 
> based on the feedback, the WG chairs have declared consensus on this document.
> We do understand that not all all feedback provided was addressed in a way
> expected by the person giving the feedback.
> 
> Best regards
> Michael
>> 
>> Best regards
>> Michael
>> 
> 
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