Purpose
Command or Action
Configures the clock slave.
Router(config-clock)#
clock slave
Step 5
Applying the Recovered Clock to the Controller
To apply the recovered clock to the controller, perform the following steps:
SUMMARY STEPS
1.
Router(config)#
controller
{
e1 | t1
}
slot
/
subslot
/
port
2.
Router(config-controller)#
vtg 2 t1 1 clock source recovered number
3.
Router(config-controller)#
vtg 2 t1 1 cem-group number timeslots number
4.
Router(config-controller)#
recovered-clock slot
/
subslot
DETAILED STEPS
Purpose
Command or Action
Selects the controller.
Router(config)#
controller
{
e1 | t1
}
slot
/
subslot
/
port
Step 1
Assigns a number to the recovered clock.
Router(config-controller)#
vtg 2 t1 1 clock source recovered
number
Step 2
Creates a CEM channel from one or more time slots
of a T1 or E1.
Router(config-controller)#
vtg 2 t1 1 cem-group number
timeslots number
Step 3
Applies the recovered clock to the interface.
Router(config-controller)#
recovered-clock slot
/
subslot
Step 4
Example for Configuring Clock Recovery
The following example shows how to configure clock recovery:
Configuration on CE1
controller t3 1/0/1
cablelength 224
t1 1 channel-group 1 timeslots 1-24
clock source internal
The clock configuration is not shown as the internal clock by default.
Note
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS XE
Everest 16.5
OL-14127-17
521
Configuring the Circuit Emulation over Packet Shared Port Adapter
Configuring Clock Recovery