Configuring the Cajun P550 Switch (Layer 2 & Layer 3)

4.In the Modem Init Cmd field, enter your modem initialization command. The default modem configuration string is AT&D0S0=1.

Table 3-18.Modem Configuration String Parameters

Parameter

Definition

 

 

&D0

Disable DTR

 

 

S0=1

Auto-answer mode (one ring)

 

 

CD follows carrier

Depends on modem

 

 

E0

Disable local echo

 

 

Software Flow Control

Depends on modem

(Receive and Transmit)

 

 

 

5.Click APPLY to save your changes, or CANCEL to restore previous settings.

Note: If you misconfigure your PPP serial console port, you can regain CLI access to correct the configuration parameters. For more information, refer to “Regaining Configuration Access to the PPP Serial Port Console”.

Safety Tip: To successfully dial-in with PPP to the switch, you must also configure an IP address and interface for the PPP Serial Interface (Serial-Console). Refer to “Configuring the IP Interface for the PPP Console”, later in this chapter for more information.

Regaining Configuration Access to the PPP Serial Port Console

If the PPP serial port console is configured incorrectly, the command line interface (CLI) becomes temporarily unavailable for reconfiguration.

To regain access to the CLI when the console port is in PPP mode:

1.In the console window, enter TTY. The CLI login prompt displays. It may be necessary to press Enter several times to see the login prompt. You may see the modem init command string.

2.At the Login prompt, enter your user name. The password prompt displays.

3.At the Password prompt, enter your password. The Cajun CLI prompt displays.

4.Enter the PPP configuration commands necessary to start PPP. Refer to “Configuring the Serial Console Port as a PPP Console”, earlier in this chapter, and “Creating an IP Interface”, in Chapter 7, for more information on PPP configuration commands.

Cajun P550/P220 Switch Operation Guide

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