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Performing a Basic Configuration

PA-4T+ Synchronous Serial Port Adapter Installation and Configuration8-8

Performing a Basic Conﬁguration

Following are instructions for a basic interface conﬁguration: enabling an interface, specifying IP

routing, and setting up external timing on a DCE interface. You might also need to enter other

conﬁguration subcommands, depending on the requirements for your system conﬁguration and the

protocols you plan to route on the interface. For complete descriptions of conﬁguration

subcommands and the conﬁguration options available for serial interfaces, refer to the appropriate

software documentation.

In the following procedure, press the Return key after each step unless otherwise noted. At any time

you can exit the privileged level and return to the user level by entering disable at the prompt as

follows:

Router# disable

Router>

Step 1 At the privileged-level prompt, enter conﬁguration mode and specify that the console

terminal will be the source of the conﬁguration subcommands as follows:

Router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

Router(config)#

Step 2 For a Cisco 7200 series, Cisco uBR7200 series or a Cisco 7100 series router, specify the

ﬁrst interface to conﬁgure by entering the subcommand interface, followed by the type

(serial) and slot/interface (port adapter slot number and interface number). The example

that follows is for the ﬁrst interface of the port adapter on a Cisco 7200 series, Cisco 7100

series, or Cisco uBR7200 series router in slot 1:

Router(config)# interface serial 1/0

For a VIP2, specify the ﬁrst interface to conﬁgure by entering the subcommand interface,

followed by the type (serial) and slot/port (interface processor slot number/0). The

example that follows is for the ﬁrst interface of the ﬁrst port adapter on a VIP2 in interface

processor slot 3:

Router(config)# interface serial 3/0

Step 3 If IP routing is enabled on the system, you can assign an IP address and subnet mask to

the interface with the ip address conﬁguration subcommand, as in the following

example:

Router(config-if)# ip address 10.10.10.10 255.255.255.255

Step 4 Add any additional conﬁguration subcommands required to enable routing protocols and

set the interface characteristics.

Step 5 If you are conﬁguring a DTE interface, proceed to Step 7. If you are conﬁguring a DCE

interface, you need to conﬁgure the external clock signal, as described in the next step.

Step 6 Set the clock rate with the clock rate command. (See the next section, “Conﬁguring

Timing (Clock) Signals.”)

Router(config-if)# clockrate 7200

Step 7 Change the shutdown state to up and enable the interface as follows:

Router(config-if)# no shutdown

Step 8 Conﬁgure additional interfaces as required.

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Cisco Systems PA-4T Manual de usuario Pagina 62

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