Re: [quicwg/base-drafts] Change PTO to be per packet number space (#3066)

MikkelFJ <> Wed, 25 September 2019 06:56 UTC

Return-Path: <>
Received: from localhost (localhost []) by (Postfix) with ESMTP id 9DBB91200B8 for <>; Tue, 24 Sep 2019 23:56:59 -0700 (PDT)
X-Virus-Scanned: amavisd-new at
X-Spam-Flag: NO
X-Spam-Score: -6.382
X-Spam-Status: No, score=-6.382 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_IMAGE_ONLY_24=1.618, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: (amavisd-new); dkim=pass (1024-bit key)
Received: from ([]) by localhost ( []) (amavisd-new, port 10024) with ESMTP id AfYIVEwDdhot for <>; Tue, 24 Sep 2019 23:56:57 -0700 (PDT)
Received: from ( []) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by (Postfix) with ESMTPS id 7C581120041 for <>; Tue, 24 Sep 2019 23:56:57 -0700 (PDT)
Date: Tue, 24 Sep 2019 23:56:56 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=pf2014; t=1569394616; bh=Yi93GWg5sgOp8lH3xWo4EpKd4O4sRX/P+dedYP3Gp4c=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=bO0lwmnAkkE360Rb4CzDenYD1bzIoSrQeIq2edSJhktNjvKUBhvNG2UAcecNFcvM6 kP0k6r7ZSX2siWKmmuvUPUfKEpb7608maHrcG+JLFTrRP6jWzEbHTascxmxMsBvqUl QiFX0/2PcCsidbq1qdYhF0ewQ+4zfJboqTtN7iXQ=
From: MikkelFJ <>
Reply-To: quicwg/base-drafts <>
To: quicwg/base-drafts <>
Cc: Subscribed <>
Message-ID: <quicwg/base-drafts/pull/3066/>
In-Reply-To: <quicwg/base-drafts/pull/>
References: <quicwg/base-drafts/pull/>
Subject: Re: [quicwg/base-drafts] Change PTO to be per packet number space (#3066)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5d8b0fb87df1e_463e3ff4d52cd968225114"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: mikkelfj
X-GitHub-Recipient: quic-issues
X-GitHub-Reason: subscribed
X-Auto-Response-Suppress: All
Archived-At: <>
X-Mailman-Version: 2.1.29
List-Id: Notification list for GitHub issues related to the QUIC WG <>
List-Unsubscribe: <>, <>
List-Archive: <>
List-Post: <>
List-Help: <>
List-Subscribe: <>, <>
X-List-Received-Date: Wed, 25 Sep 2019 06:57:00 -0000

I'd like to see the different packet number spaces operate independently because the initial handshake can use a less optimised, more complicated code path. While separate PTOs works for that, the requirement about SHOULD coalesce across packet number spaces goes against it. It requires upstream coordination and one PTO timer firing might affect the timeout of another PTO timer because coalesced packets are being sent. Overall this sounds rather complicated.

You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub: