From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from vsmta14-2.nsc.no (vip22scan.telenor.net [148.123.15.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 7AF743B29E for ; Wed, 3 May 2017 03:27:35 -0400 (EDT) Received: from [153.110.251.168] ([153.110.251.168:44101] helo=ilp-smtp02.man.cosng.net) by vsmta14-2.nsc.no (envelope-from ) (ecelerity 3.6.22.53981 r(Core:3.6.22.0)) with ESMTPS (cipher=DHE-RSA-AES256-GCM-SHA384) id 59/3E-41368-56689095; Wed, 03 May 2017 09:27:33 +0200 Received: from TNS-SKO-24-200.corp.telenor.no (TNS-SKO-24-200.corp.telenor.no [10.179.59.68]) by ilp-smtp02.man.cosng.net (Postfix) with ESMTP id 272EC1FCC6; Wed, 3 May 2017 09:27:33 +0200 (CEST) Received: from TNS-SKO-24-208.corp.telenor.no (10.179.59.76) by TNS-SKO-24-200.corp.telenor.no (10.179.59.68) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Wed, 3 May 2017 09:27:32 +0200 Received: from TNS-SKO-24-208.corp.telenor.no ([fe80::b024:7a41:ba33:25b6]) by TNS-SKO-24-208.corp.telenor.no ([fe80::b024:7a41:ba33:25b6%12]) with mapi id 15.00.1178.000; Wed, 3 May 2017 09:27:32 +0200 From: To: CC: , Thread-Topic: [Cake] Recomended HW to run cake and fq_codel? Thread-Index: AQHSwCP/lLDEM2lQwEWHw0Bwy0PLuKHa2hEAgAYAWQD///4xAIABQkwh///2vwCAACcPQw== Date: Wed, 3 May 2017 07:27:32 +0000 Message-ID: <1493796453297.40351@telenor.com> References: <1493397540.4184.959563328.3AB236CD@webmail.messagingengine.com> <1493721285271.28909@telenor.com> <1493727080.1510042.962956680.40220FCB@webmail.messagingengine.com> <1493789805885.56806@telenor.com>, <647E5E04-C77A-426E-914A-88AE553F7B33@gmx.de> In-Reply-To: <647E5E04-C77A-426E-914A-88AE553F7B33@gmx.de> Accept-Language: nb-NO, en-US Content-Language: nb-NO X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.181.50.3] Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-SCAN_VERDICT: inbox Subject: Re: [Cake] Recomended HW to run cake and fq_codel? 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, 03 May 2017 07:27:35 -0000 > Fra: Sebastian Moeller =0A= >=0A= > Question: as an ISP what is your rationale to implement a shaper a= t the BRAS? Simply the fact that =0A= > DSLAMs/MSANs are not capable to do it, or do you also need this to make s= ure there is always room for > your own VoIP packets?=0A= =0A= At least the DSLAMs we use are basically switches. Extremly limited QoS/sh= aping. For a time we actually did not shape at the BRAS level and let the = DSLAM's just drop whatever it could not push throug. That was not a succes= s. It more or less behaved like a strictly policed access, which is not so= mething you want. So we went back to shaping at the BRAS.=0A= =0A= =0A= =0A= > 0) get rid of all non-essential encapsulations, use DHCP option 82 instea= d of PPPoE, rethink the need =0A= > for VLAN tags,=0A= =0A= Done, with the exeption of some legacy business usages.=0A= =0A= =0A= > 1) make sure to properly account for all the quirks of ATM=92s AAL5 encap= sulation (see cake=92s =0A= > atm keyword or =93man tc-stab=94)=0A= =0A= Noted.=0A= =0A= > 2) preferably hoist your ADSL customers into the present and get your dev= ice manufacturers =0A= > to implement PTM for adsl modems making 1) above much less involved ;)=0A= =0A= To much legacy, so more likely to migrate to VDSL across the board.=0A= =0A= Regarding BQL, we need the chipset vendors to do this. In particular Broad= com. We do try and influence them to do this, but we simply are a to small= to get traction.=0A= =0A= =0A= -Erik=