Cisco ASR 900 Series User Manual

PurposeCommand or Action
Exits pseudowire-class configuration mode.exit
Example:
Router(config-pw-class)# exit
Step 11
Enters E1/T1 controller configuration mode.
controller {e1 | t1} slot / subslot / port
Example:
Router(config)# controller e1 0/1/8
Step 12
Enters controller configuration mode and sets the clock source
on the interface to:
clock source {internal | line | loop}
Example:
Router(config-controller)# clock source
internal
Step 13
• Internal–The system clock selection process does not select
clock source as the interface but it uses the system clock for
TX.
• Line–The system clock selection process selects the clock
source line as the interface and uses the system clock for
TX.
• Loop–The system clock selection process selects the clock
source line as the interface. For TX clock the interface uses
the clock source received on the same interface.
By default, the clock source on the interface is set to
internal.
Note
Use the framed keyword to specify Extended Superframe or
Superframe framing.
framing number {esf | sf | crc4 | no-crc4 |
unframed}
Step 14
Example:
Router(config-controller)# framing unframed
Use the unframed keyword to specify that a single CEM channel
is being created including all time slots and the framing structure
of the line.
For SAToP circuits, framing should always be
unframed.
Note
Assigns channels on the T1/E1 circuit to the circuit emulation
(CEM) channel.
cem-group number unframed
Example:
Router(config-controller)# cem-group 5
unframed
Step 15
Exits controller configuration.exit
Example:
Router(config-controller)# exit
Step 16
MPLS Basic Configuration Guide, Cisco IOS XE Everest 16.5.1 (Cisco ASR 900 Series)
135
Circuit Emulation Service over UDP
Structure-Agnostic TDM over Packet over UDP

Cisco ASR 900 Series Specifications

General

Brand	Cisco
Model	ASR 900 Series
Category	Network Router
Language	English