Avaya Configuring ATM and MPLS Services Manual do Utilizador descarregar pdf (Página 138)

100

101

Configuring ATM and MPLS Services

4-12

117374-C Rev 00

Using Site Manager

To modify the DS-3 line buildout, complete the following tasks:

Turning DS-3 Scrambling On and Off

Some ATM network equipment can exhibit sensitivity to certain bit patterns (for

example, 101010... or 000000...). This sensitivity can cause problems on the ATM

network. Turning on the DS-3 scrambling function (the default setting)

randomizes the bit pattern in the cell payload sufficiently to guarantee cell

synchronization.

Although some equipment can operate with scrambling disabled, Bay Networks

recommends that you scramble the cell payload.

Site Manager Procedure

You do this System responds

1. In the Configuration Manager window,

click on the ATM link module interface

(

ATM1

) that you want to modify.

The Select Connection Type window

opens.

2. Click on

Line Attributes

. The ATM/ARE Line Driver Attributes

window opens.

3. Set the

DS3 Line Build Out

parameter.

Click on

Help

or see the parameter

description on page A-10.

4. Click on

. You return to the Select Connection Type

window.

5. Click on

Done

. You return to the Configuration Manager

window.

Caution:

ATM devices with different settings for scrambling cannot

communicate. For example, if you configure a router to enable scrambling and

configure a hub to disable scrambling, the router and hub cannot communicate.

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