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Chapter 66 Virtual Channel Commands

IES-1248-51V User’s Guide

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66.6 PPPoA to PPPoE (PAE) Translation

Before migrating to an Ethernet infrastructure, a broadband network might consist

of PPPoA connections between the CPE devices and the DSLAM and PPPoE

connections from the DSLAM to the BRAS (Broadband Remote Access Server). The

following figure shows a network example.

Figure 245 Mixed PPPoA-to-PPPoE Broadband Network Example

In order to allow communication between the end points (the CPE clients and the

BRAS), you need to configure the DSLAM (the IES-1248-51V) to translate PPPoA

frames to PPPoE packets and vice versa.

When PPPoA packets are received from the CPE, the ATM headers are removed

and the IES-1248-51V adds PPPoE and Ethernet headers before sending the

packets to the BRAS. When the IES-1248-51V receives PPPoE packets from the

BRAS, PPPoE and Ethernet headers are stripped and necessary PVC information

(such as encapsulation type) is added before forwarding to the designated CPE.

You can use these commands to create PVCs for PAE translation.

PPPoA

PPPoE

DSLAM

Client

BRAS

Table 199 PAEPVC Commands

COMMAND DESCRIPTION P

adsl paepvc delete

This command removes a PPPoA-to-PPPoE (PAE) PVC. M/

adsl paepvc set

<portlist><vpi> <vci><ds-

vcprofile[,us-

vcprofile]><pvid><priority>

[acname][srvcname][hellotim

Creates a PAE PVC to allow communication between the

ATM (CPE) and Ethernet network (BRAS) segments. The

PVC is mapped to a PPPoE session that connects to the

specified BRAS (Broadband Remote Access Server).

acname: Specifies the hostname of a remote access

concentrator if there are two access concentrators (or

BRAS) on the network or that you want to allow PAE

translation to the specified access concentrator.

srvcname: Specifies the name of the service that uses this

PVC. This must be a service name that you configure on the

remote access concentrator.

hellotime: Specifies the timeout, (0~600 seconds) for the

PPPoE session. Enter 0 if there is no timeout.

adsl paepvc show

[<portlist>[<vpi><vci>]]

Displays the PAE PVC settings for the specified port(s) or

PVCs.

L/L

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