VDSL2 on the Bell DSL network. (Was: Finally on teksavvy)
Scott Sullivan
scott-lxSQFCZeNF4 at public.gmane.org
Tue Mar 27 16:29:33 UTC 2012
On 03/26/2012 09:11 AM, Neil Watson wrote:
> On Sun, Mar 25, 2012 at 10:57:17PM -0400, Scott Sullivan wrote:
>> I'm not so optimistic. There is apparently a Bug in the DSLAMs Bell is
>> using that makes the current model VDSL2 modem the only one that works
>> with them. A co-worker of mine had made an attempt to use a
>> independent VDSL2 modem with the service without success.
>
> I spoke with a colleague, who runs a small ISP. He told me that the
> modem lock-in is a Bell flimflam and that there will be a CRTC hearing
> about it later this year.
>
I did some digging into this.
The Alcatel 7330 ISAM is the VDSL2 slam that Bell has been deploying for
the last few years to provide the FTTN (VDSL2 / 25Mbps) Service to
customers. The majority of those slams out there are running a
pre-finalized version of the VDSL2 spec which they got wrong. This is
the reason only Bell's provided modems will work.
Working for an Independent DSL ISP, I can say that I do see the 7330 as
a very common equipment type for many customer and I've not yet seen a
an FTTN (> 6Mbps) on anything else (*).
This document[2] lists a 7330 ISLAM safe mode as a feature, providing
some evidence to support this.
[1]: http://broadbandsoho.com/FTTx/Alcatel_7330_ISAM.pdf
[2]: http://www.oracul.kiev.ua/pdf/41_Prelim_6_06_rev400.pdf
(*) The 7330 also do ADSL2+, which is anything below 25Mbps without a
7Mbps upload.
If anyone can find an independent VDSL2 modem that works with these
SLAMs I would very much like to know.
--
Scott Sullivan
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