IETF Logo Mail Archive

Re: [quicwg/base-drafts] Composability of QUIC Extensions (#3332)

ianswett <notifications@github.com> Fri, 10 January 2020 16:30 UTC

Return-Path: <noreply@github.com>
X-Original-To: quic-issues@ietfa.amsl.com
Delivered-To: quic-issues@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 71E4B1209A5 for <quic-issues@ietfa.amsl.com>; Fri, 10 Jan 2020 08:30:42 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.382
X-Spam-Level:
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: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=github.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kWoHro3i-l_M for <quic-issues@ietfa.amsl.com>; Fri, 10 Jan 2020 08:30:40 -0800 (PST)
Received: from out-23.smtp.github.com (out-23.smtp.github.com [192.30.252.206]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 191B212091A for <quic-issues@ietf.org>; Fri, 10 Jan 2020 08:30:38 -0800 (PST)
Date: Fri, 10 Jan 2020 08:30:37 -0800
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1578673837; bh=Wv5XORi8KGNU/0UuUMa/5XGAjVxt8tF43WoUzRW2IIs=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=ge5O/GBtkB7rVxU+v6hwRLRF9JAzVIDcGM55XBiWPQjKSmA6UMx0jcVfgnamP93C1 Tz379xf0Y+n6mrPM1yM3o9a1y8a63SbJlL8BmKQEGDGigugHpF/HRHC2Pwo+3FR2EE 1cXCF5ZH2mCyfs6OHRgHEvM3wL8RHFG9atxpD274=
From: ianswett <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+AFTOJK6LPJFVCHJJS5E4QGN4EXMS3EVBNHHCBKU5VI@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/issues/3332/573106781@github.com>
In-Reply-To: <quicwg/base-drafts/issues/3332@github.com>
References: <quicwg/base-drafts/issues/3332@github.com>
Subject: Re: [quicwg/base-drafts] Composability of QUIC Extensions (#3332)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5e18a6ad1831c_1c7d3fee7c0cd960207763"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: ianswett
X-GitHub-Recipient: quic-issues
X-GitHub-Reason: subscribed
X-Auto-Response-Suppress: All
X-GitHub-Recipient-Address: quic-issues@ietf.org
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic-issues/eryszcMSYPHGZMzQAs-TuXEwDj4>
X-BeenThere: quic-issues@ietf.org
X-Mailman-Version: 2.1.29
List-Id: Notification list for GitHub issues related to the QUIC WG <quic-issues.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/quic-issues/>
List-Post: <mailto:quic-issues@ietf.org>
List-Help: <mailto:quic-issues-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 10 Jan 2020 16:30:42 -0000

Defining new frame types doesn't really solve the problem in general.  I think extensions which change the same frame type and want to coexist need to call out how that works or declare themselves as mutually exclusive with all other extensions that change that frame type.

For example, if we didn't have ECN in the core of QUIC and an extension defined that, and there was also an extension to add timestamps to the ACK frame, then having them coexist would be important.  Making a receiver choose whether to send an ACK frame with ECN or an ACK frame with a timestamp is not the desired behavior.

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/quicwg/base-drafts/issues/3332#issuecomment-573106781

v2.19.0 | Report a Bug | By Email