Juniper JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010, Руководство по настройке

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Chapter 12
Configuring Point-to-Point Protocol over
Ethernet
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
Overview
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.
Overview
■ 375