Managing Synchronization On The Cisco Asr 1000 Series Router - Cisco ASR1000-RP1 - ASR 1000 Series Route Processor 1 Router Software Configuration Manual

Chapter 10 Synchronous Ethernet Support
Examples
The following example shows how to configure a SyncE using the Line-to-External method:
Router>enable
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 interface GigabitEthernet0/0/0
Router(config)# int gig 0/0/0
Router(config-if)# synchronous mode
Router(config)# exit
Router(config)# network-clock output-source line 1 interface GigabitEthernet0/0/0 External
0/0/0
Router(config)# exit

Managing Synchronization on the Cisco ASR 1000 Series Router

Manage synchronization on a Cisco ASR 1000 Series Router using the following management
commands:
•
•
•
•
OL-16506-10
Quality-Level-Enabled Clock Selection: Use the network-clock synchronization mode
QL-enabled command in the global configuration mode to configure the automatic selection
process for the QL-enabled mode. This succeeds only if the SyncE interfaces are capable of sending
SSMs. The following example shows how to configure network clock synchronization (QL-enabled
mode) in the global configuration mode:
Router(config)# network-clock synchronization mode QL-enabled
ESMC Process: Use the esmc process command in the global configuration mode to enable the
ESMC process at system level. The no form of the command disables the ESMC process. The no
form of the command fails if there is no SyncE-capable interface is installed in the platform. The
following example shows how to enable ESMC in the global configuration mode:
Router(config)# esmc process
ESMC Mode: Use the esmc mode [tx | rx |<cr>] command in the interface configuration mode to
enable the ESMC process at the interface level. The no form of the command disables the ESMC
process. The following example shows how to enable ESMC in the interface configuration mode:
Router(config-if)# esmc mode
Network Clock Source Quality Level: Use the network-clock quality-level command in the
interface configuration mode to configure the QL value for ESMC on a gigabitethernet port. The
value is based on global interworking options:
If Option 1 is configured, the available values are QL-PRC, QL-SSU-A, QL-SSU-B, QL-SEC,
–
and QL-DNU.
If Option 2 is configured with GEN 2, the available values are QL-PRS, QL-STU, QL-ST2,
–
QL-TNC, QL-ST3, QL-SMC, QL-ST4, and QL-DUS.
If Option 2 is configured with GEN1, the available values are QL-PRS, QL-STU, QL-ST2,
–
QL-SMC, QL-ST4, and QL-DUS
Use the network-clock quality-level command in the global configuration mode to configure the
QL value for the SSMs on a BITS port. The following example shows how to configure
network-clock quality-level in the global configuration mode:
Router(config)#network-clock quality-level rx qL-pRC external R0 e1 cas crc4
Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
tx
Configuring Synchronous Ethernet
10-11