•
Use the
show ip interface brief
command to display the virtual CEM interfaces that the router created
to represent master and slave clock interfaces. The output in the following example shows only the
virtual CEM interface. Information for all other interfaces is omitted from the display.
Router#
show ip int brief
. . .
Virtual-cem0/1/24 unassigned
YES unset
up
up
. . .
•
Use the
show cem circuit
command to display a list of CEM circuits configured on the SPA. The
command displays both normal and out-of-band clocking CEM circuits.
Router#
show cem circuit
CEM Int.
ID
Line
Admin
Circuit
AC
--------------------------------------------------------------
CEM0/1/0 1
DOWN
DOWN
Active
--/--
Virtual-cem0/1/24 DOWN
UP
Active
UP
•
Use the
show cem interface virtual-cem slot
/
subslot
/
port
command to display information about a
particular virtual CEM interface:
Router#
show cem interface virtual-cem 0/1/24
(Virtual-cem0/1/24) State: CONFIG COMPLETE
Virtual CEM Slave Clock Interface
Slot 0, Slot Unit 88, VC -1
Total cem circuits:
1
Cem circuits up
:
1
Cem circuits down :
0
•
Use the
show run interface virtual-cem slot
/
subslot
/
port
command to display the current running
configuration pertaining to the specified interface:
Router#
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 20.0.0.1 300 encapsulation mpls
!
end
•
Use the
show run | begin recovered
command to display the recovered clock used for out-of-band
clocking:
Router#
show run | begin recovered
recovered-clock 0 1
clock master
•
On the clock slave, you can use the
show recovered-clock
command to display the status of the
out-of-band clock:
Router#
show recovered-clock
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS XE
Everest 16.5
OL-14127-17
529
Configuring the Circuit Emulation over Packet Shared Port Adapter
Configuring Out-of-Band Clocking