From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg1-x542.google.com (mail-pg1-x542.google.com [IPv6:2607:f8b0:4864:20::542]) (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 C76D73B29E for ; Mon, 1 Apr 2019 12:03:05 -0400 (EDT) Received: by mail-pg1-x542.google.com with SMTP id y3so4978115pgk.12 for ; Mon, 01 Apr 2019 09:03:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=kcjCIGHHyEOcvn1OKdW5cHUHiDcdVTejqhJfyv4s1ck=; b=0wNvH0wAyIUvvBpGvsCJljvPlTRc03NP7PE2imgXeRE7kWsBMiVXq5xCAtthxSdNqD k2w1DC0rothdAEh4H92tmV2AXe7ShJr3euiGwJ6x5WC3heZRSNINURjJhdWhF/z7STPV AgsZIdNK6XuSmWkGvR+X4IUkfzX5J2+17wWpvPVoWVMjrg2i/bITRnCFqvq3gRQKIbuG 7NvPh2GbTYxbHch7cRbdB/X9ugB22rZNpSU+dPRU3FW3uZs7Yv/3r9TNiz2gGeyXUXKx IBwHth1/atdhQnpEOhwBr7Asu2dDt132G/y1EFlig8L7AW7Jza+62L5f9pAztxwZOsMe F83g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=kcjCIGHHyEOcvn1OKdW5cHUHiDcdVTejqhJfyv4s1ck=; b=QdUb4oV+dhwGCLLkgl/gv/6WGpyjxLZJZwbJ4Hf9j8gVKGRwg0HWi90kuZ3iJjpNoF 6Nz1ufO7htRwwwwpI1KKMRxtGkqAXp78BnLoHJrEnx7Cedrk7pieUMYCjzF0lENvBdhI jqfAvFHw92/J4g5i9FoczNOkrbiDzi0wY1ILYGZ5tz58sWj8wUd5sFeKOZBqqmfdFaIu NEOiEJvi4KR6djXSlDZStlFbV78f25leSDBaWBBPj/1IS46dLihwFNfOUvZYyfIFJ3yM wZsG80WRMKpbh0r8h8nHW7li6birT2WT3SHKiJg08rES3SioQiEdDq1opMgambIF7u6V bV5g== X-Gm-Message-State: APjAAAW5CWG0SJBZWxtO4/L3ufM8I31S5qXfTMFTySiiRCItzIZoeIYs Vh+xGv7ta8muxS3IUmKlfp436g== X-Google-Smtp-Source: APXvYqzshYDgO5wKZKyLdXCcRq+mrXWfdlR3Gl77QpvN5WzrSZYCWV7npm71NbgzYlIMDNOSF1J0vg== X-Received: by 2002:a65:6105:: with SMTP id z5mr31646542pgu.378.1554134583562; Mon, 01 Apr 2019 09:03:03 -0700 (PDT) Received: from shemminger-XPS-13-9360 (204-195-22-127.wavecable.com. [204.195.22.127]) by smtp.gmail.com with ESMTPSA id 17sm15243131pfw.65.2019.04.01.09.03.03 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 01 Apr 2019 09:03:03 -0700 (PDT) Date: Mon, 1 Apr 2019 09:02:58 -0700 From: Stephen Hemminger To: Michael Richardson Cc: Jonathan Morton , Cake List , ecn-sane@lists.bufferbloat.net Message-ID: <20190401090258.144ff939@shemminger-XPS-13-9360> In-Reply-To: <11555.1553430723@dooku.sandelman.ca> 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> <11555.1553430723@dooku.sandelman.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [Cake] [Ecn-sane] 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: Mon, 01 Apr 2019 16:03:06 -0000 On Sun, 24 Mar 2019 13:32:03 +0100 Michael Richardson wrote: > Jonathan Morton wrote: > >> On 24 Mar, 2019, at 12:05 pm, Pete Heist wrote: > >>=20 > >> tcpdump -r file.pcap udp port 2112 and greater 80 and "ip[1] !=3D = 0x1=E2=80=9D > >>=20 > >> =E2=80=9Cgreater 80=E2=80=9D ignores the handshake packets and 0x1= is whatever TOS > >> value we want to make sure the packets contain. We can use differe= nt > >> filters for other traffic. =20 >=20 > > Bear in mind that the TOS byte contains ECN as well as DSCP fields,= and > > the latter is left-justified. =20 >=20 > libpcap should probably learn about DSCN bits to avoid people having to > think so much :-) >=20 > Send patches to me/github. >=20 Libpcap is ancient history by now. It is like ifconfig, everyone still can'= t reprogram their brain; but the tool is on life support. All development is happening on wireshark/tshark.