From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt1-x82d.google.com (mail-qt1-x82d.google.com [IPv6:2607:f8b0:4864:20::82d]) (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 7A69B3CB37; Sun, 24 Mar 2019 04:55:22 -0400 (EDT) Received: by mail-qt1-x82d.google.com with SMTP id v32so7095018qtc.10; Sun, 24 Mar 2019 01:55:22 -0700 (PDT) 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=KTltQaM9GFqtG9J00GQuBh3GM91njreyBjmc0HsKkfw=; b=ijzvxnPTifTiiJUTwLkdWFZdx0sbkRwOLq+lIRoS9nhczGLurKGwZ3Ioi7PZjrZChv Nk2MrlLcgNtXDL7l9hXYPvALrXfDWVdW8nrGLtWllzfScSly9B+UrwpB4QcWPTYlTdvF eWB8lNBHl9zDEvd0LCRl/JzIHD0hfpbEi61hy2tsMlGW9wyeFH5tDqt1mYZrBBgN36Mp mLLl/Y0xeEr5j7MTWazQDnsc92ni9IPTpm2eHEJkAIOj7S6hb8oE+jdyt4yAZnazzPYP xS0wqXoP0IS/qCorcKMP1uPJvfdDLr7eCN/MuYH0MZkP4/zhYmk2fJqB40YFaOnEQ6Gw f+lw== 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=KTltQaM9GFqtG9J00GQuBh3GM91njreyBjmc0HsKkfw=; b=nCW3kxUSpEIpgrp0296vaAtOtRBqci+kP3G1GlrN4jz99uvAJ2TYcoAOor1agrUiYF FdEHRnBoC+Yr+bmHj87UUMYlTAlCpCqDTrANVVMdU5evkNab2wWK/1JCpP7eHz/u9QJ6 FKN292DomaYJSwLOtJEIVyiFRz1xHOdXIPzXyJ0kE6xmNH83+eANNu4QIeiUz7BiXfaD xmwlJt2vDuFQNWX5eK1mHUzefCjHMV1cDb9uvfcFo3cHwoBXUbAP5TqLDjxyXo2WEJ/G OkIcnlB1KNCrX2XTM47eec/f7zEVCanqEQliD6XmYnp9WIfekfgXuxkHAL4cL/G8ouvf +nHQ== X-Gm-Message-State: APjAAAVbl4KC/cPoTgbw2eR/lTXLNMttNN0EydW3gBXKve1FP0Qn92uS EKNWDvPAoGSD8/Iqrs7YKoNmaq7ABBt4D7HN7E8= X-Google-Smtp-Source: APXvYqxuFuhKIE3qspC/8jM+CWZ5yj5vLeiELqEZLbnvCBOhHJtCL1H1lsSAeQ4FwN8CBrAWxGZeKmrPThtf9fj78uc= X-Received: by 2002:aed:23b4:: with SMTP id j49mr16281394qtc.175.1553417722007; Sun, 24 Mar 2019 01:55:22 -0700 (PDT) MIME-Version: 1.0 References: <3F3F78F9-8F97-42F2-9005-F8449489BECF@gmail.com> <42B7B2FB-94FC-4CA6-B75E-CADB61FE3173@gmail.com> <6047E899-078F-4E08-A29C-B87D268A4E5E@heistp.net> <69EA569B-4AD2-4C4B-937B-9ABDD563B120@gmail.com> In-Reply-To: <69EA569B-4AD2-4C4B-937B-9ABDD563B120@gmail.com> From: Dave Taht Date: Sun, 24 Mar 2019 01:55:10 -0700 Message-ID: To: Jonathan Morton , ecn-sane@lists.bufferbloat.net Cc: Pete Heist , Cake List Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: [Cake] The two SCE tests I have in mind X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 24 Mar 2019 08:55:22 -0000 1) The research into whether bit flipping to the extent that SCE will do has not been done yet. The study of ECT(0) vs ECT(1) behavior transiting to CE was a little lightweight. To test this we going to fire up a ton of nanodes in various data centers, with low SCE thresholds, and low bandwidths, to flip lots of bits, and test between the data centers and from as many vantage points around the net as we can get - do packet captures as well as flent tests as a control, set up identical boxes, with SCE disabled, in the same data centers. Setup flent, irtt, iperf3. 2) Diffserv bit preservation test The research going by on the tsvwg mailing seems a bit dated. It is very straightforward to use irtt to test to see what udp codepoints survive e2e, and to also leverage this testbed setup. Similarly, netperf can easily be used to mark tcp. We do not have a good packet cap tool to verify that the bits are being set right, however I think irtt can be modified to check for correctness here and produce a report. On Sun, Mar 24, 2019 at 1:45 AM Jonathan Morton wro= te: > > > On 24 Mar, 2019, at 8:37 am, Pete Heist wrote: > > > > I should theoretically arrive at the boat today some time after 3pm, ha= ving picked up a mini HDMI to HDMI adapter, which we can use with the cable= that=E2=80=99s there=E2=80=A6 > > Awesome. I'm also setting up a Linux VM on my Mac, which should help thi= ngs along. > > We're bringing up some actual hardware with the SCE-enabled Cake on it no= w. Dave wants to investigate various theoretical phenomena the Internet mi= ght exhibit with a mixture of ECN codepoints; I just want to be sure it act= ually works as intended, before I move on to fiddling with TCP. > > - Jonathan Morton > > _______________________________________________ > Cake mailing list > Cake@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cake --=20 Dave T=C3=A4ht CTO, TekLibre, LLC http://www.teklibre.com Tel: 1-831-205-9740