Understanding PPPoE Interfaces

The device’s Point-to-Point Protocol over Ethernet (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 all 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.

To configure a PPPoE interface, you create an interface with a logical interface unit 0, then specify a logical Ethernet or ATM interface as the underlying interface for the PPPoE session. You then specify other PPPoE options, including the access concentrator and PPPoE session parameters.

Related Topics

• Junos OS Feature Support Reference for SRX Series and J Series Devices
• Understanding Point-to-Point Protocol
• Example: Configuring PPPoE Interfaces