From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm1-x331.google.com (mail-wm1-x331.google.com [IPv6:2a00:1450:4864:20::331]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id C5FF03B29D for ; Thu, 9 Jan 2020 18:30:02 -0500 (EST) Received: by mail-wm1-x331.google.com with SMTP id 20so30759wmj.4 for ; Thu, 09 Jan 2020 15:30:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heistp.net; s=google; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=Md6iY+wCw/kvBj90EwqovvDcIyDKHJHdvhhSXVo39SA=; b=iYXsXNeCe5XizAMLCPXnDRws8eRqSa3fY2UZUawNyvU6OPAwG50H5mpS/J0kdP9M8R aSaPwoFQUvoXrzwcH6fOfAqURlaZEasPuOTooxTkkgeAQAN+LsRzGqA0Y5+bWWCKZkY0 VySrVzt7bx2z1/D8lecBKLC1J2qz3tCj1sacxvxWqv9TzVueOSUdMP9lZb7MNwExX67v gMjfxKUcMbCKYD+YKnUBKCLpcQW/+cZH5b8UDVWHFCCiBeNzcIGFzgnqI8BvjXsQljC7 D1jMdJK3qVLsvv+XzbST6ukr2NQbaCNza7TqGlBXYDV/CT0spjmVECp8EngwGGprICim nz7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=Md6iY+wCw/kvBj90EwqovvDcIyDKHJHdvhhSXVo39SA=; b=tJiFICTiJVHVQxM9GYdM4t279lg43xQrHozva9lPIOY8UqzoNYXOYDaNEwT5ptXmPk 3MJGJRkdWq7SvHp/A/RBdkf/eMsBUabHB44z2lk7hv+Hua+B77ewFr0dsWZ7o1W7okP4 OFjMQsrXXXxpeKwUDdK4O553V3mlIxcO4+QbqflsKxWsUK5i7yF9Ga3MsWZcsYsGn7OZ dUcexNAY9DSfzhHj/3rnwaKB9X7WtLCZIh1G9QcpMOymiOHWLzosnj3rxTatiqC40foz RIlxhU+J9cED25MZ1lxeL5cqOOvYr6BxxDJsIJAiEM80A331YS1JcHPaihL2/EekAhyZ MVsw== X-Gm-Message-State: APjAAAWckZ+hNdiNPGOOoDMXxLTCocuutYKhg3qQ69aiooQQawFAd5nT CWAqnoDWB6EhYGBYEMJ6aqRK0g== X-Google-Smtp-Source: APXvYqwlZOnI0W9C4DoTp/U3M2NTRzdZTqyoSnHsnybW1LEtqWbKd6IaCZhd9v6S2MzsCNqodjD1Fg== X-Received: by 2002:a05:600c:294:: with SMTP id 20mr360658wmk.97.1578612601823; Thu, 09 Jan 2020 15:30:01 -0800 (PST) Received: from [10.72.0.64] (h-1169.lbcfree.net. [185.193.85.130]) by smtp.gmail.com with ESMTPSA id o15sm75558wra.83.2020.01.09.15.30.00 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 09 Jan 2020 15:30:01 -0800 (PST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) From: Pete Heist In-Reply-To: <80F6ABAB-EDDA-4B06-9014-D31E448FD027@akamai.com> Date: Fri, 10 Jan 2020 00:30:00 +0100 Cc: Dave Taht , ECN-Sane Content-Transfer-Encoding: quoted-printable Message-Id: <3644FEFF-F181-47A1-AD50-562662EEDCBA@heistp.net> References: <80F6ABAB-EDDA-4B06-9014-D31E448FD027@akamai.com> To: "Holland, Jake" X-Mailer: Apple Mail (2.3445.9.1) Subject: Re: [Ecn-sane] osx not doing ecn for me X-BeenThere: ecn-sane@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussion of explicit congestion notification's impact on the Internet List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Jan 2020 23:30:03 -0000 Mine negotiates it, but I=E2=80=99m stuck on 10.13. This likely isn=E2=80=99t the problem, but I=E2=80=99ve fallen for the = trap before that =E2=80=9Cnetstat -sp tcp=E2=80=9D needs to be run as = root or all counters show 0... > On Jan 9, 2020, at 10:41 PM, Holland, Jake = wrote: >=20 > Are you sure it's not just temporarily held down? >=20 > IIRC Padma said they shut it off for something like an hour or 3 > whenever they notice an "anomaly", according to a bunch of heuristics > that can occasionally hit false positives: > = https://datatracker.ietf.org/meeting/98/materials/slides-98-maprg-tcp-ecn-= experience-with-enabling-ecn-on-the-internet-padma-bhooma-00.pdf >=20 > Anyway, my mac still asks for ECN, fwiw. My sysctls say it like this, > and tweaking them I would imagine would change it around in ways I'd > want to check if I had done anything to them: >=20 > net.inet.tcp.ecn_timeout: 60 > net.inet.tcp.ecn_setup_percentage: 100 > net.inet.tcp.ecn_initiate_out: 2 > net.inet.tcp.ecn_negotiate_in: 2=20 >=20 > HTH. >=20 > -Jake >=20 > =EF=BB=BFOn 2020-01-09, 13:18, "Dave Taht" = wrote: >=20 > sometime in the last three months my osx box stopped attempting ecn = negotiation. >=20 > It would to verify if its working or not on other osx and ios boxes. >=20 > --=20 > Make Music, Not War >=20 > Dave T=C3=A4ht > CTO, TekLibre, LLC > http://www.teklibre.com > Tel: 1-831-435-0729 > _______________________________________________ > Ecn-sane mailing list > Ecn-sane@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/ecn-sane >=20 > _______________________________________________ > Ecn-sane mailing list > Ecn-sane@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/ecn-sane