From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.15.19]) (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 CB1193B29E; Tue, 19 Jun 2018 19:47:14 -0400 (EDT) Received: from [192.168.1.133] ([79.192.246.80]) by mail.gmx.com (mrgmx002 [212.227.17.190]) with ESMTPSA (Nemesis) id 0Ld0jY-1fvibC3Mgq-00iAqx; Wed, 20 Jun 2018 01:47:06 +0200 Date: Wed, 20 Jun 2018 01:47:08 +0200 User-Agent: K-9 Mail for Android In-Reply-To: References: <1529339194.276412941@apps.rackspace.com> <1529361825.80979395@apps.rackspace.com> <145517.1529440447@turing-police.cc.vt.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable To: bloat@lists.bufferbloat.net, Jonathan Morton , valdis.kletnieks@vt.edu CC: cerowrt-devel@lists.bufferbloat.net,bloat From: Sebastian Moeller Message-ID: <95BB2E1A-BD8C-4D30-8C6C-6F17EE84AD55@gmx.de> X-Provags-ID: V03:K1:ofZyDVseVohaKXmR08i3B7VGAeqCLPH5QeSlrTWljuxz9VfiSLz EyA3O+M1iZ9ZLAZVN80NPX+08xkthOeTjH0qjKXnXicPsCnAYW5bX/prmLk6I04kydbrvjV Iz4XJiFynXm62HjcrAhSHFMJaz1zyTvdmhMbyjl21KuDWUPGPBKV0UISEZjemdj96c4upIg EKlJtlRYv/+ZMwgT/x2Ag== X-UI-Out-Filterresults: notjunk:1;V01:K0:8IUjbJZqjzE=:9e3m5sC9eiftZTqHDlnnF2 R2YPQSbFzn3+OmVR++61iQM1gqnxHSBBoTNUMbp+hTahMyaDZGf+riQr50B/ZSCQSfstaSa8H y22DKLoLs5HQKm8s/PXKP081+xr9MRGuBPGZrtrUf8xD1cSJtMvJ2NGG+i67R+VqJx1CLPTkc lr2hNjc4cM9rxZHHRkEy4JFxttUB5crYBaFkDrEBHesswUFEjse/zYz+rqZRIskAbzS0wfX3l mKm7ei8BE5ib2ve3Vi3qiNCnfH9OG0vxxgcUf46TqcBKgd+icuktvWLXuzG2ijSepabw6TI0D uImsEc/7SIKNXKOWcDqT0qZE+rlLbK0xWTf7uwED0FEoN4vozJVeQoijFM6TOy01YW+ypWneK wV79Kt97FcZyuhfaugyaCRWaC+ovsnH66VtgoCnF59e0fXyPMOldHr1q9pkxAw4040Oe+fTyw h/DEdZ9ZCI2l8cA3r2rzZI1ZQDg6jzt8CgaKRhMDUWs88e4JZo/c4+wQT90whb/48uI4qZCWP tgLlnvfIRXk43pgcN3isNxeeFwVJk94gtSaKU19Db4QngpT445RzreTZ2GCERjLvu12giEEXM D/UQz4bXHlFFS2En62MQmtt5WnGfkyko3pg4rPbxUq170gLmz7XMPSPZnBZcZuPU2NQu2AqWv NNxbis/fT1kko7bOL9AeQXgFq6KNy9Aa/4hN5MzrJsj6vNt+63qgo1CNlLRytFXi6I4cno6Y2 ybDFiuf1MP6M3v5ZjeVBTa8/Y7kRqAo+Y+GqCVQJJ79yRcKIdC7aRR1LK10s0TrpDC4T7oqYr /jtUgNu Subject: Re: [Bloat] [Cerowrt-devel] Invisibility of bufferbloat and its remedies 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: Tue, 19 Jun 2018 23:47:15 -0000 On June 20, 2018 1:41:19 AM GMT+02:00, Jonathan Morton wrote: >> On 19 Jun, 2018, at 11:34 pm, valdis=2Ekletnieks@vt=2Eedu wrote: >>=20 >> Do we have a good cookbook on how to determine the set-rate? > >On DSL, the sync rates in each direction should usually be readable >from the modem; they are typically reported on the router's status >page=2E The advertised rate is less reliable, to say the least=2E Well many ISPs nowadays employ additional traffic shapers upstream of the = dslam/MSAN, and it is this shaper's set-rate we would need to have=2E All w= e know is that this needs to be <=3D sync but the details differ=2E Also we= need information about per packet overhead which again is not easily avail= able for end-users=2E IMHO our best bet would be to get regulatory agancies= to force ISPs to make this information easily available to end-users so th= at customers can actually compare different offers realistically, but I am = not holding my breath for this to happen in my lifetime=2E=2E=2E Best Regards Sebastian > >On wireless links, all bets are off - even with stationary endpoints, >link capacity varies wildly over time=2E This needs to be solved in the >radio-modems=2E > >If it's wifi, however, a link-rate-independent solution now exists for >certain hardware, and there's nothing theoretically stopping something >similar being put into future HardMAC implementations=2E If we get the >choice of hardware, naturally we choose wisely=2E > > - Jonathan Morton > >_______________________________________________ >Bloat mailing list >Bloat@lists=2Ebufferbloat=2Enet >https://lists=2Ebufferbloat=2Enet/listinfo/bloat --=20 Sent from my Android device with K-9 Mail=2E Please excuse my brevity=2E