From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.15.15]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id D591B3B260 for ; Wed, 1 Jun 2016 07:57:48 -0400 (EDT) Received: from [10.37.173.9] ([80.187.106.245]) by mail.gmx.com (mrgmx001) with ESMTPSA (Nemesis) id 0Lw2Sj-1bZgEc3XIr-017ip0; Wed, 01 Jun 2016 13:57:44 +0200 User-Agent: K-9 Mail for Android In-Reply-To: <574ECB5E.7090605@darbyshire-bryant.me.uk> References: <574EB29B.1000405@darbyshire-bryant.me.uk> <574EB550.5020005@taht.net> <574EB6E2.2020006@darbyshire-bryant.me.uk> <4DDB6EED-A66B-4E34-B233-8DC55F663EBD@gmx.de> <87shwxb1fk.fsf@toke.dk> <574ECB5E.7090605@darbyshire-bryant.me.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable From: Sebastian Moeller Date: Wed, 01 Jun 2016 13:57:47 +0200 To: Kevin Darbyshire-Bryant , =?ISO-8859-1?Q?Toke_H=F8iland-J=F8rgensen?= CC: cake@lists.bufferbloat.net Message-ID: <0026A232-9D17-40FD-83A4-8575C6FFB8C3@gmx.de> X-Provags-ID: V03:K0:gL1OcwU3+Uj8O2t4M5erC7ALUI2dlY4PornvQEGTYTCj+rWiaiP wlGS5UZjF9LZs40f8p7iWst/ie3wnYxMeAksrONBW7SF0QmHeNwr2V9n8JQLLRnhJ5nhh6V bViQpmXXn+I25DfmIE2QEbqH4auGlCApgbyfTbOxxI315vffeWbSB6Fa3Kb9a8Dtffj6CRB sgAZRu79gDpxThAni5iXA== X-UI-Out-Filterresults: notjunk:1;V01:K0:u4osyjTPBcw=:kLf/qmsVoYFu4m9gKaZfOu undr1KpGHyHJSkNzWBfBaMAPC4ogrAkblIKx7Ks9NPvUqSeYMgigB2mV3FgR5lNYLj0Yk57hF lDkoNnHCWaagtWPgtnToS5Jni5+YgteXKHSueTo2O5Ky9OAK9fGEpro9+lL8g7+zCm2/jQMxW K4+c9Q7jasuqCE1+Fv7DwE/nuV+cJq9reod7Xy3+d1HAxHYEDD2oHYGMwcWSQpkQCEZ6EdzaY MrwPmYBbIWqwhC1WFA7ySdPJWTOla3pC1M7EgE8bUCf/mQaDBQgydVkwW/bjc2XF17R+/6QKW WMCIftDIWta7sK037W5eRNjwzitTygNKrPjliBrtnuvcNXJjXdLwdzTw7MczBYlwPmOPwzg4E 9afb1k83Cur1MOjZAkpYkIy7I07c+HHawtBjwC/NQL/FCJwCABLOqZJJZbl5olns+93T1Xc8C j1TMgBD03KqgMQU42WFryfASHS6P2jX4tDgqwH9E4tGGqsq+B8zQa+U9bG4g3F5lW3+UF1Xqg LfnahJwhMyn10SgbhxkCpGk4/g3/I4GpoBx1FuVmPZoct4miA7YR92SwsUtZsYOeiEZHqCMtK BfRAwy0l+hwNucnVzLmEBqNFYKb4aCctzIebpey5oi0KxlxA9uxTeXwR5xnCGodPRUYLB4+58 XiOlUXZpX5Kov84SgyMIerlbWLbC5kxE0CHaYI2vsJNc4NvGDCNHgidkC2bf3QJXPEr7Ga0JK pCbFJdabNXgCQG0S+wzw0/0x2KQBha6Bu7tF1XROWI7fxioXheImW1c8svw4B6sCEoJEHm+mO emIdynZUW6AjeZ5YcwvI1KU7dVqfg== Subject: Re: [Cake] [lede-project/source] Add support for cake qdisc (#72) 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: Wed, 01 Jun 2016 11:57:49 -0000 Hi Kevin On June 1, 2016 1:47:42 PM GMT+02:00, Kevin Darbyshire-Bryant wrote: > > >On 01/06/16 12:41, moeller0 wrote: >> Hi Toke, >>> I'm guessing this was probably discussed before and I've simply >>> forgotten; but why does this (rewriting dscp bits) need to be part >of >>> the qdisc when you can do it with iptables? >> >> Well, cake looks at the DSCP bits already, if it can do the >re-mapping we potentially would not need to touch iptables at all, >which cakes goal being simplicity seemed on-focus=2E But since this >feature turned out to be contentious, I vote for throwing it out and >just rely on iptables=E2=80=A6 I believe Jonathan argued that the re-mapp= ing >really is an orthogonal issue that does not conceptually belong into a >qdisc, a valid points as by now everyone agrees=E2=80=A6 >> >> Best Regards >> Sebastian > >One silly question from ignorant fool: Can you do the iptables DSCP=20 >remapping in such a way that the qdisc still sees/prioritize based on=20 >them but clear/remap on output? At least on ingress that is all we can do right now, as the iptables gets = only run after the intermediate functional block device=2E So we can explic= itly not do what we like, that is to use iptables to re-mapp DSCP marks to = our internal liking and then have these Interpreten to select the correct p= riority tin=2E=2E=2E Re-map all to 0 is just a special case of that=2E=2E= =2E Best Regards Sebastian > >Kevin --=20 Sent from my Android device with K-9 Mail=2E Please excuse my brevity=2E