Re: Go Back to Single Packet Number Space

Patrick McManus <pmcmanus@mozilla.com> Thu, 26 July 2018 12:15 UTC

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From: Patrick McManus <pmcmanus@mozilla.com>
Date: Thu, 26 Jul 2018 08:15:27 -0400
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Subject: Re: Go Back to Single Packet Number Space
To: Kazuho Oku <kazuhooku@gmail.com>
Cc: Martin Thomson <martin.thomson@gmail.com>, Nick Banks <nibanks=40microsoft.com@dmarc.ietf.org>, QUIC WG <quic@ietf.org>
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On Thu, Jul 26, 2018 at 4:33 AM, Kazuho Oku <kazuhooku@gmail.com> wrote:

> I prefer having split packet number spaces, because in addition to
> what Martin says, I feel uneasy about allowing a receiver to
> acknowledge a packet "in a greater than or equal encryption level."
>
> My understanding is that this the key of the proposal. Use of a
> unified packet number space makes sense only when an endpoint can send
> an acknowledgement for all packets that it has received in one
> encryption level.
>
>
This sums up my feelings as well - I really like the explicitness of the
separate spaces.