Configuring the Master Clock Interface
The following example shows how to configure a CEM SPA as a master clock and verify the configuration:
Router# config t
Enter configuration commands, one per line. End with CNTL/Z.
Router (config)# recovered-clock ?
<0-14> Slot number
Router (config)# recovered-clock 0 1
Router(config-clock)# clock ?
master Configure clock master on the card
recovered Configure recovered clock on the card
reference Configure reference clock on the card
slave Configure clock slave on the card
Router(config-clock)# clock master
Router(config-clock)# end
Router# show run | begin recovered
recovered-clock 0 1
clock master
Configuring the Slave Clock Interface
The following example shows how to configure a CEM SPA as a slave clock and verify the configuration:
Router# config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# recovered-clock 0 1
Router(config-clock)# clock slave
Router(config-clock)# end
Router#
Router# show run | begin recovered-clock
recovered-clock 0 1
clock slave
Verifying the Virtual CEM Interface Configuration
The router creates a virtual CEM interface when you configure either the master or slave clock interface. You
can view the interface using the show ip interface brief command:
Router# show ip int br
...
Virtual-cem0/1/24 unassigned YES unset up up
...
Router# sh run int Virtual-cem 0/1/24
Building configuration...
Current configuration : 50 bytes
!
interface Virtual-cem0/1/24
no ip address
end
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS XE
Everest 16.5
OL-14127-17 531
Configuring the Circuit Emulation over Packet Shared Port Adapter
Configuring Out-of-Band Clocking
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