[RndTbl] aggregating dsl lines

[Adam Thompson]

This is an active area of research, particularly with the advent of multi-path TCP.
Presently, however, you have to hide the two-link-ness from the TCP layer, and essentially from the IP layer as well.
ECMP would work, as long as both lines are the same (this does not hold true as a dynamic assertion with DSL technology, *ever*).
LACP will *not* work.
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.

Far more effective, however, would be to upgrade to a symmetric VDSL2 setup that supports DSL bonded pairs.
That'll set you back around $600+ per end, IIRC, replaces both the DSLAM and the DSLR, but makes your problems go away by turning all the copper into a single Ethernet link.

I just worked with someone else on this kind of setup, I'll see if I can find the links...

-Adam

On September 29, 2015 4:18:54 AM CDT, Trevor Cordes <trevor at tecnopolis.ca> wrote:
>Is it possible to aggregate DSL lines, to combine them to get X-times
>the 
>bandwidth on a single link?  In this situation, I control both ends,
>the 
>DSLAM and the DSL modem side on the other end of some POTS runs
>(CAT3-ish 
>I assume, or worse).
>
>Note, I don't want load balancing or fancy routing/sharing.  I need
>double 
>(or more) the bandwidth for a single application (single TCP
>connection).
>
>If required, we can have linux/bsd boxes we control at either end of
>the 
>links.
>
>If it's not possible, does anyone have any other ideas for somehow
>getting 
>better bandwidth out of 500m POTS wires (quantity 4)?
>
>Thanks!
>_______________________________________________
>Roundtable mailing list
>Roundtable at muug.mb.ca
>http://www.muug.mb.ca/mailman/listinfo/roundtable

-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.muug.mb.ca/pipermail/roundtable/attachments/20150929/3694e5cc/attachment.html>