C H A P T E R 8

Configuring the PA-4T+ Interfaces

To continue your PA-4T+ port adapter installation, you must install the port adapter cables and configure the PA-4T+ interfaces. The instructions that follow apply to all supported platforms. Minor differences between the platforms are noted. This chapter contains the following sections:

Using the EXEC Command Interpreter, page 8-1

Identifying Port Adapter Slot and PA-4T+ Interface Port Numbers, page 8-2

Shutting Down an Interface, page 8-5

Performing a Basic Configuration, page 8-8

Configuring Timing (Clock) Signals, page 8-9

Configuring Half-Duplex and Binary Synchronous Communications, page 8-12

Checking the Configuration, page 8-14

If you installed a new PA-4T+ or if you want to change the configuration of an existing interface, you must enter configuration mode using the configure command. If you replaced a PA-4T+ that was previously configured, the system will recognize the new PA-4T+ interfaces and bring each of them up in their existing configuration.

After you verify that the new PA-4T+ is installed correctly (the enabled LED goes on), use the privileged-level configure command to configure the new interfaces. Be prepared with the information you will need, such as the following:

Protocols you plan to route on each new interface

IP addresses if you will configure the interfaces for IP routing

Whether or not the new interfaces will use bridging

Timing source for each new interface and clock speeds for external timing

For a summary of the configuration options available and instructions for configuring interfaces on the PA-4T+, refer to the appropriate configuration publications listed in the “Related Documentation” section on page vi.

Using the EXEC Command Interpreter

You modify the configuration of your router through the software command interpreter called the EXEC (also called enable mode). You must enter the privileged level of the EXEC command interpreter with the enable command before you can use the configure command to configure a new interface or to change the existing configuration of an interface. The system prompts you for a password if one is set.

Configuring the PA-4T+ Interfaces 8-1

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Cisco Systems manual Configuring the PA-4T+ Interfaces, Using the Exec Command Interpreter