Example: Configuring Cem Circuits For Out-Of-Band Clocking - Cisco ASR 1000 Series Software Configuration Manual

Configuring Out-of-Band Clocking

Example: Configuring CEM Circuits for Out-of-Band Clocking

This section provides an example of how to configure CEM circuits and pseudowires for out-of-band clocking.
The sample configuration shows the circuits and pseudowires configured on a CEM SPA in PE1, which sends
TDM data to another CEM SPA in PE2.
You configure CEM circuits for the master and slave clocks under the virtual CEM interface that represents
the recovered clock that is being used for out-of-band clocking. This differs from normal CEM circuits, which
are configured under the SPA controller through the cem-group command.
Issuing the xconnect command under the master and slave CEM circuits, configures an out-of-band clock
channel to send the clock signal from the sending SPA to the receiving SPA. Note that normal CEM pseudowires
are configured under the SPA controller interface.
Out-of-Band Clocking (PE1)
PE1# config t
PE1(config)# int virtual-cem 0/1/24
PE1(config-if)# cem 1
PE1(config-if-cem)# xconnect 20.0.0.1 200 encap mpls
PE1(cfg-if-cem-xconn)# end
PE1# show run int Virtual-CEM 0/1/24
Building configuration...
Current configuration : 117 bytes
!
interface Virtual-cem0/1/24
no ip address
cem 1
xconnect 20.0.0.1 200 encapsulation mpls
!
end
Out-of-Band Clocking (PE2)
PE2# conf t
PE2(config)# int virtual-cem 0/1/24
PE2(config-if)# cem 1
PE2(config-if-cem)# xconnect 10.0.0.1 200 encap mpls
PE2(cfg-if-cem-xconn)# end
PE2# show run int Virtual-CEM 0/1/24
Building configuration...
Current configuration : 117 bytes
!
interface Virtual-cem0/1/24
no ip address
cem 1
xconnect 10.0.0.1 200 encapsulation mpls
!
end
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS
XE Everest 16.5
532
Configuring the Circuit Emulation over Packet Shared Port Adapter
OL-14127-17