From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.17.20]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mout.gmx.net", Issuer "TeleSec ServerPass DE-1" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 8E0AB21F2A4 for ; Mon, 30 Jun 2014 12:18:04 -0700 (PDT) Received: from hms-beagle-6.home.lan ([217.231.210.84]) by mail.gmx.com (mrgmx102) with ESMTPSA (Nemesis) id 0LhCDT-1WGTUz1H1z-00oWUo; Mon, 30 Jun 2014 21:17:54 +0200 Content-Type: text/plain; charset=windows-1252 Mime-Version: 1.0 (Mac OS X Mail 6.6 \(1510\)) From: Sebastian Moeller In-Reply-To: <26292.1404142678@sandelman.ca> Date: Mon, 30 Jun 2014 21:17:52 +0200 Content-Transfer-Encoding: quoted-printable Message-Id: <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> To: Michael Richardson X-Mailer: Apple Mail (2.1510) X-Provags-ID: V03:K0:1iTVCXQ4TwjntVxxcxWbBO4lSzuO+cqSZOHzs32cSlRiDrbfD6w gaq+IpM1cGFV+af2beHeJoTMUDr9GY2KjaaSMCsYcdTz1MWfNExaxbGlSgYOoDssbp1o1u1 nC8GVY91jP39yFJuxPHw4XDng4EuKEyUF8UaldjgwnzJId0cSPIOwcRZVmCXrsnlfXRJZk0 ELC99sB++ewjOa/ly8msA== 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: Mon, 30 Jun 2014 19:18:05 -0000 Hi Michael, On Jun 30, 2014, at 17:37 , Michael Richardson wrote: >=20 > Sebastian Moeller wrote: >>> Bell Canada and nortel ATM equipment is involved. >=20 >> 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 use >> 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. >=20 > I can't say what the VDSL2 interface is, but the backhaul network with = Bell > has been historically all nortel passport ATM (with way over buffered = LANE). I would be amazed if they would manage to extend the reach of = their ATM network while most other telco's seem to be moving away from = ATM=85 Since bell advertises this as a fiber to the cabinet product, my = bet is on 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? Best Regards Sebastian >=20 > -- > ] Never tell me the odds! | ipv6 mesh = networks [ > ] Michael Richardson, Sandelman Software Works | network = architect [ > ] mcr@sandelman.ca http://www.sandelman.ca/ | ruby on = rails [ >=20