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Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-17
Chapter 11 Network Synchronization Support
Configuring Network Synchronization
Examples
The following example shows how to configure clock recovery from a BITS port for a Metronome SPA:
Router# configure terminal
Router(config)# network-clock synchronization automatic
Router(config)# network-clock synchronization ssm option 2 GEN1
Router(config)# network-clock input-source 1 external 0/3/0 t1 esf
Router(config)# exit
The following example shows how to configure clock recovery from a BITS port for RP BITS on Cisco
ASR 1000 Series Aggregation Services Routers with dual RP:
Router# configure terminal
Router(config)# network-clock synchronization automatic
Router(config)# network-clock synchronization ssm option 2 GEN
Router(config)# network-clock input-source 1 External R0 t1 esf
Router(config)# exit
The following example shows how to configure clock recovery with BITS as the input source on the
Cisco ASR 1002-X Series Aggregation Services Routers on the E1 Common Channel Signal mode:
Router# configure terminal
Router(config)# network-clock synchronization automatic
Router(config)# network-clock synchronization ssm option 2 GEN
Router(config)# network-clock input-source 1 external r0 e1 cas crc4 120 linecode
Router(config)# exit
Configuring Clock Recovery with a BITS Port as an Output-Source
This section describes how to configure clock recovery from a BITS port as an output-source.
Step 5
network-clock input-source priority
{external slot/card/port}
Example:
Router(config)# network-clock
input-source 1 External 0/3/0 t1 esf
Router(config)# network-clock
input-source 1 External R0 t1 esf
Example:For ASR 1002-X Router:
Router(config)# network-clock
input-source 1 external r0 e1 cas crc4
120 linecode
Enables clock recovery from a BITS port.
Note Routers with dual hardware support, such as the
Cisco ASR 1006 Router, can have two RP ports,
wherein one RP is active and the other is
standby. Both the active and standby RP BITS
ports can be configured as output sources.
Step 6
exit
Example:
Router(config)# exit
Exits the global configuration mode.
Command Purpose