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Chapter 4
Configuring the OC12 POS Line Card
Performing a Basic Configuration
This section describes the procedures for performing a basic configuration: enabling an interface (with
the no shutdown command) and specifying IP routing. 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.
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>
Enter configuration mode and specify that the console terminal will be the source of the configuration
Step 1
subcommands as follows:
Router# configure terminal
Enter configuration commands, one per line.
Router(config)#
Specify the new interface to configure by entering the interface pos subcommand, followed by the
Step 2
interface address of the interface you plan to configure.
Table 4-2
Examples of the interface pos Subcommand
Platform
Cisco 7304 router
Assign an IP address and subnet mask to the interface (if IP routing is enabled on the system) with the
Step 3
ip address configuration subcommand, as in the following example:
Router(config-if)# ip address 10.0.0.10 255.255.255.0
Change the shutdown state to up and enable the interface as follows:
Step 4
Router(config-if)# no shutdown
The no shutdown command enables the interface and causes the OC12 POS line card to configure itself
based on the previous configuration commands sent.
Add any additional configuration subcommands required to enable routing protocols and adjust the
Step 5
interface characteristics.
OL-3437-01
Command
interface pos, followed by
slot/interface(slot-number/
interface-port-number)
OC12 Packet Over SONET Line Card Installation and Configuration
End with CNTL/Z.
Table 4-2
gives examples.
Example
The example is for the second OC-12
interface of an OC12 POS line card in slot 5.
Router(config)# interface pos 5/1
Router(config-if)#
Configuring the Interfaces
4-3
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