Junos® OS Ethernet Interfaces Configuration ... - Juniper Networks

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OS 12.3 Ethernet Interfaces Configuration Guide
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Configuring PPPoE
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• Offers a more targeted approach to configuration of PPPoE sessions based on the
service name and ACI/ARI information provided by the PPPoE client during PPPoE
negotiation.
• Supports creation of dynamic PPPoE subscriber interfaces in a specified routing instance
based on configuration of a service entry or ACI/ARI pair in the PPPoE service name
table.
• Enables you to reserve a specified static PPPoE interface for use only by the PPPoE
client with matching ACI/ARI information.
• Enables you to specify the maximum number of PPPoE client sessions that can use a
particular service entry in the PPPoE service name table.
• Provides redundancy across a set of remote ACs in a mesh topology by enabling you
•
to configure a primary AC and a backup AC for handling a specific service request from
a PPPoE client.
For example, on the primary AC for handling a client service, you might configure the
terminate action for the associated service to direct the primary AC to immediately
send a PPPoE Active Discovery Offer (PADO) packet in response to a PADI packet
containing that service name tag. On the backup AC for the client service, you might
configure the delay action for the associated service to specify the number of seconds
the backup AC waits after receiving a PADI packet from the client before sending a
PADO packet in response. If the primary AC does not send a PADO packet to the client
within the delay period configured on the backup AC, then the backup AC sends the
PADO packet after the delay period expires.
Understanding PPPoE Service Name Tables on page 398
• Configuring PPPoE Service Name Tables on page 412
• Example: Configuring a PPPoE Service Name Table on page 422
• PPPoE Overview on page 394
• Junos® OS Ethernet Interfaces
To configure PPPoE on a J Series Services Router, perform the following tasks:
1. Configure PPPoE encapsulation for an Ethernet interface or Ethernet over ATM
encapsulation for an ATM-over-ADSL interface.
2. If you are configuring ATM over ADSL, configure LLC encapsulation on the logical
interface.
3. Specify the logical Ethernet interface or the logical ATM interface as the underlying
interface for the PPPoE session.
4. Configure the operational mode as client.
5. Identify the access concentrator by a unique name.
Copyright © 2012, Juniper Networks, Inc.