PPPoE Interfaces

The device's PPPoE interface to the access concentrator can be a Fast Ethernet interface, a Gigabit Ethernet interface, an ATM-over-ADSL interface, or an ATM-over-SHDSL interface. The PPPoE configuration is the same for both interfaces. The only difference is the encapsulation for the underlying interface to the access concentrator:

• If the interface is Ethernet, use a PPPoE encapsulation.
• If the interface is ATM-over-ADSL or ATM-over-SHDSL, use a PPPoE over ATM encapsulation.