IETF Logo Mail Archive

Re: [quicwg/base-drafts] Fragility in ECN counters with lost acks (#1481)

Magnus Westerlund <notifications@github.com> Wed, 27 June 2018 11:31 UTC

Return-Path: <bounces+848413-a050-quic-issues=ietf.org@sgmail.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 138711277C8 for <quic-issues@ietfa.amsl.com>; Wed, 27 Jun 2018 04:31:43 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -3.01
X-Spam-Level:
X-Spam-Status: No, score=-3.01 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, T_DKIMWL_WL_HIGH=-0.01] 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 lAL7vs-1PjJc for <quic-issues@ietfa.amsl.com>; Wed, 27 Jun 2018 04:31:39 -0700 (PDT)
Received: from o5.sgmail.github.com (o5.sgmail.github.com [192.254.113.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6E82612777C for <quic-issues@ietf.org>; Wed, 27 Jun 2018 04:31:39 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=github.com; h=from:reply-to:to:cc:in-reply-to:references:subject:mime-version:content-type:content-transfer-encoding:list-id:list-archive:list-post:list-unsubscribe; s=s20150108; bh=Sd4GtvzoK7eJj+wnjOlPgwv9kHw=; b=VOIw8vpAuBko+Kku gwsPmcI2MwgpX9gvTDWq8bafVlN59hHLHluuNZEDoK2s/lE7VKWxDgUiMdHSLjgC q23L7lKK0a9SCbCw/owY7nQYsiNhaFjJDyZjxIelM2uqAKz3KnTwm9o+KFHnSvlx mh/lbPZv7Qn21FtbQp30QskAnAU=
Received: by filter0683p1las1.sendgrid.net with SMTP id filter0683p1las1-862-5B337599-1B 2018-06-27 11:31:37.803208681 +0000 UTC
Received: from github-lowworker-f6df7df.cp1-iad.github.net (unknown [192.30.252.41]) by ismtpd0010p1iad1.sendgrid.net (SG) with ESMTP id rvCJ0EIuRjOtfv4f6pDIpw for <quic-issues@ietf.org>; Wed, 27 Jun 2018 11:31:37.631 +0000 (UTC)
Received: from github.com (localhost [127.0.0.1]) by github-lowworker-f6df7df.cp1-iad.github.net (Postfix) with ESMTP id 98C943E0287 for <quic-issues@ietf.org>; Wed, 27 Jun 2018 04:31:37 -0700 (PDT)
Date: Wed, 27 Jun 2018 11:31:38 +0000
From: Magnus Westerlund <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+0166e4ab4f08ffa03b716c02afc16f26378fc57377c0e71092cf00000001174b379992a169ce1406c905@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/issues/1481/400640246@github.com>
In-Reply-To: <quicwg/base-drafts/issues/1481@github.com>
References: <quicwg/base-drafts/issues/1481@github.com>
Subject: Re: [quicwg/base-drafts] Fragility in ECN counters with lost acks (#1481)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5b337599969cb_42372ab905a7cf542045dd"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: gloinul
X-GitHub-Recipient: quic-issues
X-GitHub-Reason: subscribed
X-Auto-Response-Suppress: All
X-GitHub-Recipient-Address: quic-issues@ietf.org
X-SG-EID: l64QuQ2uJCcEyUykJbxN122A6QRmEpucztpreh3Pak0wb4/tm6RAU9kQ+v7TxkpLb7cqd5F59S6LsC YeLF82JHSzif31SRqef2W9LCko/m3Pfi+WNyX3E0IdWXFljDlBX8SDJtb1Gc5ADbsESvnpKHm4LUs2 2UENP+dLGHHv+kqOSbvDM8A6c1ojCkwkpcAmrk/3Odb2PW9PDt1C+arT3CcloCgUq0/bHCjh88BXeY g=
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic-issues/BGnnKyzeFLqqHCZqiow5r05BBpk>
X-BeenThere: quic-issues@ietf.org
X-Mailman-Version: 2.1.26
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: Wed, 27 Jun 2018 11:31:44 -0000

I think the general approach of handling this is correct. I don't think the MAY in the fourth paragraph is appropriate. The counters can increase due to their markings, not something that is specified by a RFC 2119 MAY. 

"It can then reset both the largest acknowledged and the values it tracks for each counter." I don't think reset is the appropriate word for something that is in practice baseline offsets to the comparison.

-- 
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/1481#issuecomment-400640246

v2.23.0 | Report a Bug | By Email