[Gllug] BT, ADSL, and PPPOE/PPPOA

[John Hearns]

On Mon, 2003-02-17 at 22:20, John Edwards wrote:
> On Mon, Feb 17, 2003 at 09:48:14PM +0000, Chris Bell wrote:
> > Hello,
> >    I am connected to my ISP via BT wires only ADSL. I understood that I was
> > obliged to use PPPOA, but I have been informed that my local exchange is
> > about to be upgraded to support PPPOE/PPPOA. Should I celebrate?
> > 
> > -- 
> > Chris Bell
> 
> Where did the information come from ?
> 
> PPPoA is PPP over ATM - BT's ADSL network uses ATM.
> PPPoE is PPP over Ethernet - which is used by cable companies 
> (NTL, etc).
> 
> It would be very strange that BT would switch away from ATM to 
> Ethernet, unless this is something to do with the Local Link 
> Unbundling or maybe the exchange is shared with a cable company ?

AFAIK, I believe that BT are changing over to a 'native' Ethernet
service.
There's no need for ATM overheads if you are offering an Ethernet
service at the consumer end.
As to whether the core network is going gig ether over SONET, don't ask
me mate.



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