From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from tuna.sandelman.ca (tuna.sandelman.ca [IPv6:2607:f0b0:f:3:216:3eff:fe7c:d1f3]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 92FFE21F261 for ; Wed, 2 Jul 2014 13:45:51 -0700 (PDT) Received: from sandelman.ca (obiwan.sandelman.ca [IPv6:2607:f0b0:f:2::247]) by tuna.sandelman.ca (Postfix) with ESMTP id 290AE20028; Wed, 2 Jul 2014 16:46:20 -0400 (EDT) Received: by sandelman.ca (Postfix, from userid 179) id 41F3363B0E; Wed, 2 Jul 2014 16:45:49 -0400 (EDT) Received: from sandelman.ca (localhost [127.0.0.1]) by sandelman.ca (Postfix) with ESMTP id 3318663B09; Wed, 2 Jul 2014 16:45:49 -0400 (EDT) From: Michael Richardson To: Sebastian Moeller In-Reply-To: <3FD2D434-D099-4251-BA38-A98A382EB067@gmx.de> References: <30963.1403650134@sandelman.ca> <29573.1404134649@sandelman.ca> <002A4328-A358-4122-BCF8-F8C504C9C3F5@gmx.de> <26292.1404142678@sandelman.ca> <3FD2D434-D099-4251-BA38-A98A382EB067@gmx.de> X-Mailer: MH-E 8.2; nmh 1.3-dev; GNU Emacs 23.4.1 X-Face: $\n1pF)h^`}$H>Hk{L"x@)JS7<%Az}5RyS@k9X%29-lHB$Ti.V>2bi.~ehC0; <'$9xN5Ub# z!G,p`nR&p7Fz@^UXIn156S8.~^@MJ*mMsD7=QFeq%AL4m Sender: mcr@sandelman.ca Cc: cerowrt-devel Subject: Re: [Cerowrt-devel] CeroWRT and "FTTN" 50/10 VDSL2 (aka "FIBE") X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Jul 2014 20:45:51 -0000 Sebastian Moeller wrote: > Hi Michael, > On Jun 30, 2014, at 17:37 , Michael Richardson wro= te: >> >> Sebastian Moeller wrote: >>>> Bell Canada and nortel ATM equipment is involved. >> >>> Oh, that would be quite interesting vdsl2 and atm at the same >>> time. Could you by chance post the status page of your vdsl modem (= the >>> more detailed the statistics the better)? (Typically vdsl2 should u= se >>> packet transfer mode (PTM) instead of ATM between modem and DSLAM, >>> though the DSLAM might still connected to an ATM fabric. It would be >>> interesting to measure whether you still "see" the effects of ATM >>> encapsulation along your link. >> >> I can't say what the VDSL2 interface is, but the backhaul network wi= th Bell >> has been historically all nortel passport ATM (with way over buffere= d LANE). > I would be amazed if they would manage to extend the reach of their A= TM > network while most other telco's seem to be moving away from ATM=E2= =80=A6 Since > bell advertises this as a fiber to the cabinet product, my bet is on OC192 still counts as fiber :-) Bell Canada is still very much a Nortel captured company. > ethernet over fiber from the slam/msan to the core network, but I > digress. Not that it matters, only for the modem slam connection one > needs to take ATM encapsulation into account for bandwidth shaping > purposes. So what is your direct uplink to the slam using PTM or ATM? I have no idea and no real way to find out. I'll ask my ISP. -- ] Never tell me the odds! | ipv6 mesh network= s [ ] Michael Richardson, Sandelman Software Works | network architect= [ ] mcr@sandelman.ca http://www.sandelman.ca/ | ruby on rails = [