From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lj1-x22a.google.com (mail-lj1-x22a.google.com [IPv6:2a00:1450:4864:20::22a]) (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 2F2803B2A4 for ; Thu, 4 Mar 2021 03:14:26 -0500 (EST) Received: by mail-lj1-x22a.google.com with SMTP id k12so23199003ljg.9 for ; Thu, 04 Mar 2021 00:14:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=+295ZKoEF3+D3UMmLo5n3Te2W90jhf3MVWbZoQoiiLA=; b=nCoZrYMsvklHyvvLKT2V9KPeCf9CQvcT9B6IyYJXjFGX5clWm0gqYwfXdsFAaQO4rT ovjhyXWJxWMcYYydacI3u+GzS0dC2KPUzFV8ITi+JCDNZri4BEoxz5NNnexQxZzp64/m R2wWqrQv9jR5Zi/V89ItcczxJzI8+gFjgsdk5W9rYYkBirAENmN8zIWXl8z8qxRvSz2T C5FLn+KJbfgg0QNvUNmhtfkXA3570qyTH5bqcG67+nn6dpaFyF0i1OtgTtFHxfMXQ31P c/SsJk+sBxN8zc8luq4jpeqnyNC9QzpKE/YIC51YvygowWZR1VmwF/tZKbJ0Z278T+Ar Qspg== 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=+295ZKoEF3+D3UMmLo5n3Te2W90jhf3MVWbZoQoiiLA=; b=Jz/FvoxnF6V3LI5ipqFMopQ1ecWGkB/UK/FGGtYWvsrm2Q/kty432trK0ndgParN5s PwvO9hjgjZLRB2KeJy8YJ4agi9I+ELm/JCbL50BfEkH6MJ0CeDA3GHAJ/4WUzlz/F+y4 Or0wagr73NZw1tNbXjY+r5XaW2eLFvFi39oGhHI06TzVfDT6ONkkfS0lKf0HIIeYM1Gm 9tp3t7bLEGfWbOdC8v6vEb/Y1D/9yqnZ+dPYhM8+LY3xRL0jmBGH6Y+CGIJZCIE7aO3l b4qd1U43qo7C4vTj4mUNhygHkzV3ODboCtS9s1lDKs9QobP6szbfAQC3H3pDMObDoHW6 T5nw== X-Gm-Message-State: AOAM530RrMCDovS6j4Xsq6qMMFzRbv8cnHMXzbXhLvzULeg6zb3Cpi9W x7lVqwpFHRqptQmURUALMKu7PCIqTe0= X-Google-Smtp-Source: ABdhPJwviQE++ljN7Zf8hJQEuCPuk18ZC+00pAYudpFJbvhGb+H5Jshp+YTk901KYCRWBULWhlgZHw== X-Received: by 2002:a2e:908f:: with SMTP id l15mr1635582ljg.473.1614845664520; Thu, 04 Mar 2021 00:14:24 -0800 (PST) Received: from jonathartonsmbp.lan (176-93-29-60.bb.dnainternet.fi. [176.93.29.60]) by smtp.gmail.com with ESMTPSA id w1sm1588539lfu.239.2021.03.04.00.14.23 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 04 Mar 2021 00:14:23 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.7\)) From: Jonathan Morton In-Reply-To: Date: Thu, 4 Mar 2021 10:14:22 +0200 Cc: Cake List Content-Transfer-Encoding: quoted-printable Message-Id: References: <9C791D21-7FC9-425E-9167-EC7660BF38F9@gmail.com> To: Thomas Croghan X-Mailer: Apple Mail (2.3445.9.7) Subject: Re: [Cake] ISP Implementation 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: Thu, 04 Mar 2021 08:14:26 -0000 > On 4 Mar, 2021, at 8:31 am, Thomas Croghan = wrote: >=20 > So this would be preferable right? = -- -- -- -- <10 x 25 Mbps Customers> Yes, putting the Cake instances associated with the backhaul link = upstream of the link in both directions like that is better for a number = of reasons. You can still have the instances managing individual = customers on the right-hand side, or even further to the right. If the customer links are physically wider in the upstream direction = than is made available to the customer, then there's no problem in doing = all the per-customer work in an aggregated position. The difference (in = the long run) between the traffic transmitted by the customer and that = released to traverse the backhaul is limited to AQM activity on Not-ECT = traffic, which will be small, unless they start flooding in which case = the overload protection will kick in and start dropping a lot of = packets. This is also what you'd expect to see with a well-behaved = policer in the same position. - Jonathan Morton=