From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-il1-x12c.google.com (mail-il1-x12c.google.com [IPv6:2607:f8b0:4864:20::12c]) (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 E704C3B2A4; Mon, 19 Apr 2021 09:56:45 -0400 (EDT) Received: by mail-il1-x12c.google.com with SMTP id y10so7278538ilv.0; Mon, 19 Apr 2021 06:56:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=kPmoSx4qbnIZ53W7U3rqYGR4Jg0gwt+6T0tXmnDatnc=; b=Vy2b9v3gtt67QfboK/5FhvThdiIJcdI9k5oNlD6Sgt4VrTueP6IAhfv0ySniEOcn7h GhOyykPFfqONeR3WWgI+Pno0wopwSpfpOUoBXcSKKDSkkmKsRoqiRns2QXCaxrup+Q2H +2OUIm/Hq5pnogzAALgRHMO9tAJlBHPtgBWrSfFG9GVMDWoVCpHUuZMy5i4QF17uPnlD 51xmphdR45kNYdRMUvmmwgdWKntOeRQYBS9/mY7PG+etLYx5ZqNBBJVworvbPz0TOwZz nJR/S1iuVMfn8RL6ciGCvwxl9PFVe7jvqxiLbV1qQZU5QfIa6pDyw+uvGh6Ih0368nPF 4oVA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=kPmoSx4qbnIZ53W7U3rqYGR4Jg0gwt+6T0tXmnDatnc=; b=C+TfxPPlI4AHG4BzrA/Wd53UCkQtIl25HhAlZmMx9irdqhc1gfs7jxigzRDwrLLofx fI5YTSNeQanLn3poeblIZV8GEaY3mIWj6PdLr1DQDFMe7SENDyjynEe7gbcwEcp2kcIk nKPpdVHk2II1DhmedjevSg3QzvWjhlIJgvmDEamkU2Vu+1dBizc3hyyuQ+AQ5Y96c5/K jJP0REAKfqI9+kAvBMOR39hM54sryBgfgtbPFt2PB7JVZ3EdsXlghvIEol0OUsRByi1M Qg96xRTYJDkSd+0BdfQriLrS1OZw+t0BnlCH1w+TLeRUndaXH5X9ZpmE5Gyk9yoOSsuM M7tg== X-Gm-Message-State: AOAM530oMk6EAWvCw9tAWxFnpylypKvJgZmvyQRiyL+9DoHJtZdnoK6W cs8sSEON42Kt8XpiRTFp7o6Hu7THrke4z5AA2AOU9nybRCCsnw== X-Google-Smtp-Source: ABdhPJwuvnoLfcWzdv6spmjm1IsIXwuAUyExgMY7ivwUoDkl5jMXS33KnheMk1j4aU9sxLYpb1VbSdtO1mdTWuWPg54= X-Received: by 2002:a05:6e02:d41:: with SMTP id h1mr17350541ilj.0.1618840604723; Mon, 19 Apr 2021 06:56:44 -0700 (PDT) MIME-Version: 1.0 From: Dave Taht Date: Mon, 19 Apr 2021 06:56:33 -0700 Message-ID: To: bloat , Cake List Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: [Bloat] starlink testing X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Apr 2021 13:56:46 -0000 I find myself in front of a starlink terminal this morning, and have been doing various tests. The behavior of their network is like nothing I've ever seen before, appearing to re-adjust the available bandwidth on a 10sec interval, and... yes... they have bufferbloat... bad. Still running quite the large battery of tests at the moment. They are behind a large cgnat, and no ipv6 is available, either. I can make available some tests and packet caps if anyone wants a look. If anyone would like to drop in on me and help talk me down^H^H^H^H^H^H^H strategize on how best to tell 'em about things like fq_codel and cake, I can be found over here (any login you want, no password) from 7AM PDT through 9AM. https://tun.taht.net:8443/group/bufferbloat -- "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