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Re: [Editorial Errata Reported] RFC9000 (8106)

Mirja Kuehlewind <mirja.kuehlewind@ericsson.com> Tue, 17 September 2024 15:18 UTC

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From: Mirja Kuehlewind <mirja.kuehlewind@ericsson.com>
To: Martin Thomson <mt@lowentropy.net>, Lars Eggert <lars@eggert.org>
Subject: Re: [Editorial Errata Reported] RFC9000 (8106)
Thread-Topic: [Editorial Errata Reported] RFC9000 (8106)
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Date: Tue, 17 Sep 2024 15:18:31 +0000
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References: <20240917070050.433023B874@rfcpa.rfc-editor.org> <d8d2724c-9fd9-439f-8d82-513d2ac330b2@app.fastmail.com> <6A656208-8CE3-4C5A-A8FD-F436E81C4C03@eggert.org> <70313a30-beb8-4a63-bc96-79286881273e@app.fastmail.com> <EA5AABA6-3F53-49D6-827D-0F9FF3EEF279@eggert.org> <e51bfa20-fbe8-470f-9c60-9164cf5c4ef8@app.fastmail.com>
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Also an ACK really gives you only one RTT sample for the largest PN (which was either ACK-eliciting or gives you the ACK delay).

On 17.09.24, 16:37, "Martin Thomson" <mt@lowentropy.net <mailto:mt@lowentropy.net>> wrote:


On Tue, Sep 17, 2024, at 09:49, Lars Eggert wrote:
> maybe I'm missing something, but isn't the ACK delay encoded in an ACK 
> frame (only) the delay of the largest ACK'ed packet number? How would 
> you disambiguate between ack-eliciting and non-ack-eliciting packet 
> numbers when you parse an ACK?


The sender tracks whether the packet they sent was ack-eliciting.

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