Cisco 10000 Series Configuration Manual page 270

Other Configuration Commands
The system displays an OK message when the configuration has been stored.
After you have completed your configuration, you can check it using the show interface pos
slot/subslot/port.
Other Configuration Commands
The following sections present some of the commands that you can use to customize your Cisco 10000
1-Port OC-12 Packet over SONET line card configuration.
Setting the Clock Source
At the prompt, set the internal or line clock source by using the clock source command.
clock source {internal | line}
Where:
•
•
The default is clock source internal.
In this example, the line card is instructed to use a line clock source.
Router(config)# interface pos 1/0/0
Router(config-if)# clock source line
Configuring Framing
You can use the pos framing command to set framing to SONET STS-12c or SDH STM-4 framing.
pos framing [sdh | sonet]
[no] pos framing
The default is SONET.
Make sure your system supports SDH before using this option.
Use the no form of the command to restore the default framing mode.
In the following example, the framing type is set to SONET:
Router(config)# interface pos 5/0/0
Router(config-if)# no pos framing
Specifying SONET Overhead
You can use the pos flag command to assign values for specific elements of the frame header. This
command is typically used to meet a standards requirement or to ensure interoperability with another
vendor's equipment.
pos flag [c2 value] [j0 value] [s1s0 value]
[no] pos flag [c2 value] [j0 value] [s1s0 value]
Cisco 10000 Series Router Line Card Configuaration Guide
13-4
internal specifies that the internal clock source is used
line specifies that the network clock source is used
Chapter 13 1-Port OC-12 Packet over SONET Line Card Configuration
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