From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io1-xd35.google.com (mail-io1-xd35.google.com [IPv6:2607:f8b0:4864:20::d35]) (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 B2E1C3B29E for ; Wed, 20 Jan 2021 01:03:54 -0500 (EST) Received: by mail-io1-xd35.google.com with SMTP id q1so44704746ion.8 for ; Tue, 19 Jan 2021 22:03:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=PIUJaOtqlhMB5aAe//RovuH1VkNl4QJLFwCpGtfvSuY=; b=bdFx4FRa9jAlsBNZQOxoj7xxwz0/3dJ21Nv1AZEEi/i8l2r0KPeh97nUJyJRfcMG4O 9jE8u/BMS/m7UWRJooou1hUS/FoE8ZDLWtfEjoQ39uf+MAOV1goTDCOIWHQMVCsoo0yM rIGs6vz4Bqcm98Hpzixlq80lqVR9qoq2qXSphLeLSmfhwgmUIk0UqAnUn4pH5suzwHZW M34xW3ePwtUpAZ73te9qTu3rlYDL3+PeKtgo3QOf/2zKGNqGWJb3fkcnfNQ+Xqj9y7cf t3mOKYppI+Nix8NfJPzoSMiSkkdi8F/2WJkbYPiX9w+Tu5fr0frRBsTTyugrqhBpRhM1 82jA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=PIUJaOtqlhMB5aAe//RovuH1VkNl4QJLFwCpGtfvSuY=; b=k7Dyh3pwllMAS1fffv9cSn7nMY42BmLILdR8qJy91zOH91ZAUTQllbnuo1DLvd05fn neNXsnd/U3paJxfuCoEHN33H5SEe1H7PEGF4b7EqkMsylgiW6FsCkwEcCqP0qvvSFolJ EKR2fSIQqNuHH+YaDEsrAXvaofAP5VmLmbIdlrgoBUC6DmVcRn8D7HVazUEIj+CIOUTJ qdnvRLvyHB9zHj0q89MqzecJ8S4INBGGaU4NkqjhpFeT47dKBdKJEPoQ7MxgxKP5Kh3m HKLzJQlCGp9/wNRZTqLiLjdxkF85Os9oRQEgkLFierWFrimdSnYzKWipNWtrca0yJTDI JMoQ== X-Gm-Message-State: AOAM533zQLs2oZRtsMs2gz1zcrQt+9G3pmR+7I7M0E4dTsp68dBgCKPZ VZkH11oFEfdefl5SL5N7AZTY2hkf0owPom012k0= X-Google-Smtp-Source: ABdhPJw8GAP0wGwiQoKhd8oprNM9n6lrOxQZxSoQyoSWVjSCZvhjyOOnVcJsiF4XkAoLbZhVR7+RYbRsQMDkQaUytDk= X-Received: by 2002:a5e:da01:: with SMTP id x1mr5862014ioj.100.1611122634229; Tue, 19 Jan 2021 22:03:54 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Dave Taht Date: Tue, 19 Jan 2021 22:03:42 -0800 Message-ID: To: Jonathan Morton Cc: ECN-Sane Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [Ecn-sane] Fwd: [bbr-dev] Re: BBRv2 v2alpha branch rebased from 5.4 to 5.10, supports all CCs and E2 GCE VMs 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: Wed, 20 Jan 2021 06:03:54 -0000 On Fri, Jan 15, 2021 at 5:19 PM Jonathan Morton wro= te: > > > On 16 Jan, 2021, at 1:51 am, Dave Taht wrote: > > > > what's the state of SCE nowadays? Has anyone ported it to bbrv2 yet? > > We haven't attempted to do anything with BBR yet, instead trusting that a= ny results using conventional AQM and/or L4S will translate reasonably easi= ly. Instead we're focusing on conventional window-based algorithms, gettin= g the reference qdiscs right, and pointing out enough flaws in L4S so that = it stops being an obstacle to IETF progress. It would be really nice to compared bbrv2 instances. But I've been saying that since the beginning. > We *have* got a big vote of confidence in the form of funding from both R= IPE and NGI Pointer. That gives us time and freedom to work on SCE without= too many unnecessary distractions. One of the things we're doing with tha= t is building a decent test harness. Very happy to see that. The thing is, so far as I know, the basic brick-wall aspect of the aqm hasn't changed much, especially when FQ is involved, have the aqm implemantations changed at all for SCE? > - Jonathan Morton --=20 "For a successful technology, reality must take precedence over public relations, for Mother Nature cannot be fooled" - Richard Feynman dave@taht.net CTO, TekLibre, LLC Tel: 1-831-435-0729