Enterasys Networks CSX7000 Manual de usuario descargar pdf (Pagina 389)

100

101

ONFIGURING

THER

DVANCED

PTIONS

OVERVIEW

This chapter provides information for configuring advanced system options that are not covered in

the previous chapters. These options include:

• configuring for a Digital Modem

• configuring default async protocol

• configuring PPP

• configuring default line protocol

• configuring log options

• configuring system compression options

• configuring TFTP

• configuring file attributes

THE DIGITAL MODEM

In addition to ISDN support, the CyberSWITCH becomes an analog modem pool through its

Digital Modem feature. The Digital Modem feature consists of both hardware and software

elements to support up to 30 K56Flex modems (handling 300 bps to 56 Kbps) on a single adapter.

This adapter is connected to an ISDN BRI or PRI adapter via an intercard bus. This Digital Modem

adapter performs the modulation or demodulation and Async-Sync conversions, as necessary. The

system then sends the data to the LAN.

The Digital Modem feature allows the system to accommodate both incoming and outgoing analog

calls (i.e., it can receive and initiate connections). The feature conforms to the V.90 standard (which

supports K56Flex), and will support connections from remote modems that also conform to this

same standard.

CONFIGURING FOR A DIGITAL MODEM

USING CFGEDIT

1. Configure basic system configuration, including the configuration of resources and lines (See

Configuring Resources). Note that when you configure the Digital Modem resource, you must

specify whether the resource is a DM-8, DM-24, or a DM-30. You do not need to distinguish

between V.34+ and K56Flex modems; the CyberSWITCH will do this internally.

2. Select and configure protocol. The digital modem may use:

• IP Routing

• IPX Routing

• AppleTalk

For IP routing:

a. Make sure IP routing is enabled.

b. Configure the LAN interface to represent local IP Network that may receive and send

datagrams (refer to the Configuring Interfaces in the Configuring Basic IP Routing chapter).

c. Configure the WAN or WAN Direct Host interface to represent remote networks that may

receive and/or initiate calls (refer to the Configuring Interfaces in the Configuring Basic IP

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