[RndTbl] aggregating dsl lines

John Lange john at johnlange.ca
Tue Sep 29 15:20:59 CDT 2015

I'm not clear on your topology, but the Adtran solution is a regular 1Gig
switch with ActivReach capability. At the other end it's a dongle that
converts back to regular ethernet. If you can put the switch in the middle
it can service multiple sites so it might be cost effective. It also has a
lot of advantages over any other kind of cat-3, or DSL aggregation. It's
symmetric; full speed in both directions. Not a hack. And you can manage it
just like any network switch so you can apply VLANs, QOS, etc. It's the
only product like it in the market.

For anyone on this list that may need to deal with buildings where new
wiring is a problem (asbestos is a typical example), this is a solution for
utilizing existing "telephone" wiring to build a network.

If you are looking for carrier grade, then Adtran also makes DSLAMs with
Gig over copper DSL type solutions, but I assume you are looking for cheap.



On Tue, Sep 29, 2015 at 2:33 PM, Trevor Cordes <trevor at tecnopolis.ca> wrote:

> On 2015-09-29 A Myriad of MUUGers wrote:
> > If you can put a box at both ends you can do compression between them
> > with
> Yes, we fully control both ends, and can put a box at both.  Compression
> could possibly help in our scenario too, as the traffic might be
> repetitive.
> > Far more effective, however, would be to upgrade to a symmetric VDSL2
> > setup that supports DSL bonded pairs.
> Options that don't require replacing the DLSAM might be feasible if the
> cost isn't too high.  VDSL looks like a possibility.
> > If you have Linux boxes at both ends, you can use mod_bonding in its
> > round-robin mode... I've done that in the past and it does work.
> That sounds promising too.
> > Are there any reasons for not considering commercial (backbone)
> > wireless
> We might do wireless.  But the line of sight isn't great, and weather
> might be a concern?  However, the application on top of all of this
> maintains one constant all-day TCP connection that can't tolerate being
> broken at all, and IME wireless is a lot less reliable than wires, even
> POTS wires.
> > Do you control the bare copper at each end? Adtran as a product called
> > "ActivReach" which delivers up to 100Mbit POE over CAT3 style wiring.
> Yes, we control the whole thing, including the copper.  I need to find
> out exactly what cable is in there now to make sure it's CAT3.
> We actually have 3 or 4 POTS runs to the 500m out location, and the
> DSLAM capacity is already there, and we have DSL modems too (so that's
> all "free"), so possibly trying a software-on-linux-boxen approach
> first would be worthwhile.
> Many of the products y'all pointed out are really neat too, but if we
> need multiples of them it might start getting pricey, and from what I
> can tell would still require linux-boxen to aggregate.
> Thanks for all the tips!  MUUG shines once again.  I'll keep you
> posted.  I may have further questions as I implement.  Maybe I'll do a
> presentation on it down the road (if it works out!).
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John Lange
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