Allied Telesis AR450S Guide de l'utilisateur télécharger pdf (Page 77)

Physical and Layer 2 Interfaces 77

Software Release 2.5.2

C613-02034-00 REV A

6. Create PPP interfaces.

Create PPP interfaces to use the ISDN calls. PPP provides the link layer

protocol and enables multiple network and transport layer protocols such

as IP and Novell® IPX to be carried over the same ISDN link.

For example, on the Head Office router create PPP interface 0 to use the

ISDN call ROHO, by entering the command:

CREATE PPP=0 OVER=ISDN-ROHO

On the Remote Office router, create PPP interface 0 to use the ISDN call

ROHO, by entering the command:

CREATE PPP=0 OVER=ISDN-ROHO

Check the configuration with the commands:

SHOW ISDN CALL

SHOW PPP

The call ROHO should appear in the output of the SHOW ISDN CALL

command. The output of the SHOW PPP command should show interface

ppp0 over ISDN-ROHO.

ISDN is now ready for use by routing protocols such as IP and IPX.

Configuring Primary Rate ISDN

Your AR400 Series router can operate in either TE or NT mode, using 75W or

120W termination. The router is shipped with jumpers set to TE mode, 75W

termination, Tx grounded and Rx grounded via a 100nF capacitor. This is

appropriate for most situations. Your authorised distributor or reseller can

advise you whether or not to install grounding jumpers.

The following steps are required:

1. Check BRI hardware configuration.

1. Select the territory.

2. Set directory numbers and subaddresses.

3. Create call definitions.

4. Create PPP interfaces.

To configure Primary Rate ISDN follow these steps

1. Check BRI hardware configuration

Check that the AT-AR021(U) PIC has the correct termination for the local

conditions. The AR410 router can only operate in TE mode and is shipped

with the standard 100W termination jumpers removed. This is appropriate

for most situations, where the building wiring provides the ISDN

termination. Your authorised distributor or reseller can advise you

whether or not you should install termination jumpers.

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Allied Telesis AR450S Guide de l'utilisateur Page 77