Re: [quicwg/base-drafts] No RTT samples, no persistent congestion (#3889)

Martin Thomson <notifications@github.com> Fri, 10 July 2020 01:03 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 816AB3A0A9F for <quic-issues@ietfa.amsl.com>; Thu, 9 Jul 2020 18:03:20 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.009
X-Spam-Level:
X-Spam-Status: No, score=-2.009 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, DKIM_VALID_EF=-0.1, HTML_IMAGE_ONLY_16=1.092, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_MSPIKE_H2=-0.001, 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 tzdt6BiDUoiy for <quic-issues@ietfa.amsl.com>; Thu, 9 Jul 2020 18:03:19 -0700 (PDT)
Received: from out-17.smtp.github.com (out-17.smtp.github.com [192.30.252.200]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 43D133A0AA5 for <quic-issues@ietf.org>; Thu, 9 Jul 2020 18:03:19 -0700 (PDT)
Received: from github-lowworker-f144ac1.va3-iad.github.net (github-lowworker-f144ac1.va3-iad.github.net [10.48.16.59]) by smtp.github.com (Postfix) with ESMTP id 4BB5C6E1206 for <quic-issues@ietf.org>; Thu, 9 Jul 2020 18:03:18 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1594342998; bh=bhSksfUHVOM6hAfZ3JhbPK3ZYka9b1Ciph/c23Mb3YQ=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=A1R0mVCvS2n68j/b76QZFx5mVquiueHQvv+gPMS1ukwh/saHvUjMWGBLmK6B82aQQ pKy7F1ag+KP/0hla22Uu0SQZzWz9fmU5OrquTNk8HTsPpzitltsI6zvuJet2V6U9vW vGtuYXFfEiwkQJJiWBjc2jhr1SLtAmUMCaCWjdrg=
Date: Thu, 09 Jul 2020 18:03:18 -0700
From: Martin Thomson <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+AFTOJK5IYQGBSLPNBKSA3WF5COPVNEVBNHHCOAK6ZQ@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/pull/3889/c656424075@github.com>
In-Reply-To: <quicwg/base-drafts/pull/3889@github.com>
References: <quicwg/base-drafts/pull/3889@github.com>
Subject: Re: [quicwg/base-drafts] No RTT samples, no persistent congestion (#3889)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5f07be563bdeb_34493f8657ccd96416903"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: martinthomson
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/pcqhYGYbLY0FQ6_2xZ022jQn3AM>
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 Jul 2020 01:03:21 -0000

So a slight rewording *might* help, but you would have to disqualify losses associated with packets sent prior to getting an RTT estimate, as noted.  But then RTT estimates are poor to start with (the first packet to establish a NAT binding can add noticeable delays, for instance).

-- 
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/pull/3889#issuecomment-656424075