Configuring Point-To-Point Protocol Over Ethernet; Overview - Juniper JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010 Configuration Manual

Chapter 12
Configuring Point-to-Point Protocol over
Ethernet

Overview

This chapter describes how to configure the Point-to-Point Protocol (PPP) over Ethernet
interfaces on E Series routers.
This chapter contains the following sections:
Overview on page 375
Platform Considerations on page 384
References on page 386
Before You Configure PPPoE on page 386
Configuring PPPoE over ATM on page 386
Configuring PPPoE for Ethernet Modules on page 393
Configuring PADM Messages on page 401
Configuring PADN Messages on page 403
Configuring PPPoE Service Name Tables on page 404
Configuring PADS Packet Content on page 412
Configuring PPPoE Remote Circuit ID Capture on page 413
Monitoring PPPoE on page 419
Troubleshooting on page 434
E Series routers use PPP over Ethernet (PPPoE) to enable multiple hosts to open PPP
sessions to the router using one or more bridging modems. When service providers
want to maintain the session abstraction associated with PPP, PPPoE is used with
Broadband Remote Access Server (B-RAS) technologies that provide a bridged Ethernet
topology. PPPoE can be configured over ATM or on Ethernet modules with or without
VLANs.
Figure 37 on page 376 shows how PPPoE allows the router to handle multiple PPP
sessions originating on an Ethernet module to be multiplexed over one PVC on an
ATM interface. PPP, as described in "Configuring Point-to-Point Protocol" on page 263,
runs above the PPPoE layer.
375
Overview