[Cerowrt-devel] CeroWRT and "FTTN" 50/10 VDSL2 (aka "FIBE")
mcr at sandelman.ca
Wed Jul 2 16:45:49 EDT 2014
Sebastian Moeller <moeller0 at gmx.de> wrote:
> Hi Michael,
> On Jun 30, 2014, at 17:37 , Michael Richardson <mcr at sandelman.ca> wrote:
>> Sebastian Moeller <moeller0 at gmx.de> 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 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.
>> 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… 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 networks [
] Michael Richardson, Sandelman Software Works | network architect [
] mcr at sandelman.ca http://www.sandelman.ca/ | ruby on rails [
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