10-7
Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-10
Chapter 10 Synchronous Ethernet Support
Configuring Synchronous Ethernet
Configuring Clock Recovery from a BITS Port
This section describes how to configure clock recovery from BITS port.
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
network-clock synchronization automatic
4.
network-clock synchronization ssm option
option_Id Generation_Id
5.
network-clock input-source
priority
{interface
interface_name slot
/
card
/
port
| {external
slot
/
card
/
port
}}
6.
exit
DETAILED STEPS
Command
Purpose
Step 1
enable
Example:
Router#
enable
Enables the privileged EXEC mode.
Enter your password if prompted.
Step 2
configure
terminal
Example:
Router#
configure terminal
Enters the global configuration mode.
Step 3
network-clock synchronization automatic
Example:
Router(config)#
network-clock
synchronization automatic
Enables the network clock selection algorithm. This
command disables the Cisco-specific network clock
process, and turns on the G.781-based automatic clock
selection process.
Step 4
network-clock synchronization ssm
option {
option_id
{
GEN1
|
GEN2
}}
Example:
Router(config)#
network-clock
synchronization ssm option 2 GEN1
Configures the equipment to work in synchronization
network. The
option_id
value 1 refers to synchronization
networks design for Europe. This is the default value. The
option_id
value 2 refers to the synchronization networks
design for the U.S.
