From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr1-x42c.google.com (mail-wr1-x42c.google.com [IPv6:2a00:1450:4864:20::42c]) (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 505FE3B29E for ; Sat, 16 Mar 2019 12:21:16 -0400 (EDT) Received: by mail-wr1-x42c.google.com with SMTP id p8so12621987wrq.6 for ; Sat, 16 Mar 2019 09:21:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heistp.net; s=google; h=from:message-id:mime-version:subject:date:in-reply-to:cc:to :references; bh=6f9MXZra+xCa7Zt5AVRmurNDEgUyhq6B7Iit3IFAdeA=; b=ADvygVnphMt7wynFV+PtUQwEUxxsaRrxcnJAoINtzmecfF9pSl8IMwoc82swJoV4T8 HN94iK4D0vXmKbnjSNIYWTB2oAgp39dYIde0xMUUNlcJ8Nq+NIKIPQLI3XV2sJ6sLHse x/s4HN2BDIopovH4RF48cQ8rTcVHSxyk7csVGZu8F943RdBthaEnMfkPWOax35oWOBcR KwksFhJtLhi3gnhw3QpWepRobfEHxD0RH3Ukb9Hjx55QJzI2fD7+Kt9zWzaKTu7kKUxi CGKuxNI0SyhU5SL3eGDkXbywfiIRyibH/NAHWDaINP1u4MucHj7zlBdYsYWJYNeLMJIh Fk1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:message-id:mime-version:subject:date :in-reply-to:cc:to:references; bh=6f9MXZra+xCa7Zt5AVRmurNDEgUyhq6B7Iit3IFAdeA=; b=rIcXAWYZoZMigjnz5Hg+cxHlt7eDZNkuaqTghBwFjGt2G9wu9i0telyXDvbx8d54Fp 4DuydwWe06EOZC0ANT2rBXnGvxQn0hCPF7v89xFxvoUkKVZe10Q/kWXu8DgLfXMjDAoK dPIubGCtHNHGqWrp9aqcJqdkocn3EG40NjuDIIhvH8v0JEVgKdgbVwks1mxbD0UKZPoX j0N/AI+Mk8aElp/SAkhoQ1sfkcg2tPysl8UX/Kxzs/vqJt4xZkiW5117PGuJNczn7mNe F9pWz3hlEVm6ToufzMLQG3+4Qt5vqmT8Q2r2ZFA71gsuOn/O8pVJTb1PJn4k62YvxBGN dxMw== X-Gm-Message-State: APjAAAViiBQ4itbR9L345A4j2KfxdZLiq2WkabagMm/eUvGMP+tMsIuE Df4wntfM9kLjX+3qUlKB8/mdFw== X-Google-Smtp-Source: APXvYqzK2+o/9SuZul+9up+DhOik17U6s1tHL6zrdOeJCpAicyBJNVZ9+5YFtWHPrBlRQakiLRSuSw== X-Received: by 2002:a5d:6a89:: with SMTP id s9mr6518812wru.58.1552753275513; Sat, 16 Mar 2019 09:21:15 -0700 (PDT) Received: from tron.luk.heistp.net (h-1169.lbcfree.net. [185.193.85.130]) by smtp.gmail.com with ESMTPSA id 11sm6325192wmg.27.2019.03.16.09.21.14 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 16 Mar 2019 09:21:14 -0700 (PDT) From: Pete Heist Message-Id: <0E91C3CA-10E5-4BA4-AA0C-87B70E295A0D@heistp.net> Content-Type: multipart/alternative; boundary="Apple-Mail=_9A0048F2-39B8-47FA-8135-3E5C15E40C29" Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) Date: Sat, 16 Mar 2019 17:21:13 +0100 In-Reply-To: Cc: ecn-sane@lists.bufferbloat.net To: Jonathan Morton References: <862FC3E9-1059-4722-BF3E-6036DC176400@heistp.net> X-Mailer: Apple Mail (2.3445.9.1) Subject: Re: [Ecn-sane] proving out SCE 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: Sat, 16 Mar 2019 16:21:16 -0000 --Apple-Mail=_9A0048F2-39B8-47FA-8135-3E5C15E40C29 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Seeing the marks visually would be useful, even if it=E2=80=99s just to = look at how the AQM marks it for now. It looks like tcptrace currently = puts the text =E2=80=9CCE=E2=80=9D and =E2=80=9CCWR CE=E2=80=9D in the = time-sequence graphs. This is where you=E2=80=99d want to see =E2=80=9CSCE= =E2=80=9D? Otherwise, I could extract the bits from Go and use some plotting lib or = make a csv. I=E2=80=99ve had to parse pcaps before = (https://github.com/heistp/wanonpcap = ). I just don=E2=80=99t know if you = need to see the ECN bits alongside window sizes or other things... > On Mar 16, 2019, at 3:58 PM, Jonathan Morton = wrote: >=20 > Also, a version of tcptrace that can plot SCE activity would be = valuable. A plot of SCE marking proportion observed on the forward = path, and some indication of any feedback path that exists. >=20 > - Jonathan Morton >=20 --Apple-Mail=_9A0048F2-39B8-47FA-8135-3E5C15E40C29 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Seeing the marks visually would be useful, even if it=E2=80=99s= just to look at how the AQM marks it for now. It looks like tcptrace = currently puts the text =E2=80=9CCE=E2=80=9D and =E2=80=9CCWR CE=E2=80=9D = in the time-sequence graphs. This is where you=E2=80=99d want to see = =E2=80=9CSCE=E2=80=9D?

Otherwise, I could extract the bits from Go and use some = plotting lib or make a csv. I=E2=80=99ve had to parse pcaps before (https://github.com/heistp/wanonpcap). I just don=E2=80=99t = know if you need to see the ECN bits alongside window sizes or other = things...

On Mar 16, 2019, at 3:58 PM, Jonathan Morton = <chromatix99@gmail.com> wrote:

Also, = a version of tcptrace that can plot SCE activity would be valuable. =  A plot of SCE marking proportion observed on the forward path, and = some indication of any feedback path that exists.

- Jonathan Morton


= --Apple-Mail=_9A0048F2-39B8-47FA-8135-3E5C15E40C29--