nanog mailing list archives

Re: ADSL Line Extenders


From: Scott Helms <khelms () zcorum com>
Date: Wed, 29 Apr 2015 08:09:31 -0400

They're certainly real, still in use, and deployed world wide but most
commonly in rural areas.  They aren't particularly cost effective for most
scenarios, but cheaper than hanging even a mini-DSLAM to service 1-2
customers that are too far away from a cabinet.  Installing them is a pain
and keeping them running long term is an even bigger pain.  Certain models
don't work well with specific DSLAMs and/or in specific plant combinations
so testing with your DSLAMs, modems, and in your plant is a must.


Scott Helms
Vice President of Technology
ZCorum
(678) 507-5000
--------------------------------
http://twitter.com/kscotthelms
--------------------------------

On Tue, Apr 28, 2015 at 5:24 PM, Jean-Francois Mezei <
jfmezei_nanog () vaxination ca> wrote:


A friend on a rural DSl association asked about ADSL line extenders.

A search on Google yields many products dating back to the days of
ADSL-1 advertising 1mbps profiles, but a few seem more recent and
support ADSL2+ (not sure if any support VDSL2).

Are these thing out of date and no longer deployed ? Were they ever
effective, or just vapourware that didn't really improve things ?


Do any Telcos still deploy them ?  Anyone know of deployments in Canada ?

I just need a reality check on those devices.

jf



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