[nsp] PPPoE xDSL Termination Benefits? (was Total PVC's per router ..)

Gert Doering gert at greenie.muc.de
Wed Mar 12 16:10:34 EST 2003


On Tue, Mar 11, 2003 at 09:02:44PM -0800, Michael Loftis wrote:
> I've personally always had a hard time understanding what the benefits are 
> of using PPPoE for xDSL connectivity.

The interesting point is when the end customer can select which service
provider to connect to by specifying the PPP login domain.

Like over here - customer gets a DSL line, uses "12345 at t-online.de" to
connect to one ISP, and "54321 at dsl.space.net" to a different ISP, on
the same DSL line.

Technically it works by terminating the PPPoE connection at the carrier
site, and then L2TP tunneling the PPP packets to the ISP that the customer

"Business grade" DSL is usually terminated on a dedicated ATM VC, and 
does not use PPPoE (but routed or bridged 1493 instead).

USENET is *not* the non-clickable part of WWW!
Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert.doering at physik.tu-muenchen.de

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