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22-13
Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 22 Configuring Clocking
Configuring Network Clock for Cisco ASR 901 Router
Configuring Synchronous Ethernet for Copper Ports
You can configure synchronization on the copper ports using the following commands:
:
Verifying the Synchronous Ethernet configuration
Use the show network-clock synchronization command to display the sample output.
Router# show network-clocks synchronization
Symbols: En - Enable, Dis - Disable, Adis - Admin Disable
NA - Not Applicable
* - Synchronization source selected
# - Synchronization source force selected
& - Synchronization source manually switched
Automatic selection process : Enable
Equipment Clock : 2048 (EEC-Option1)
Clock Mode : QL-Disable
ESMC : Disabled
SSM Option : 1
T0 : GigabitEthernet0/4
Hold-off (global) : 300 ms
Wait-to-restore (global) : 300 sec
Tsm Delay : 180 ms
Revertive : No
Nominated Interfaces
Interface SigType Mode/QL Prio QL_IN ESMC Tx ESMC Rx
Internal NA NA/Dis 251 QL-SEC NA NA
To0/12 NA NA/En 1 QL-FAILED NA NA
External 0/0/0 10M NA/Dis 2 QL-FAILED NA NA
Gi0/1 NA Sync/En 20 QL-FAILED - -
*Gi0/4 NA Sync/En 21 QL-DNU - -
T4 Out
External Interface SigType Input Prio Squelch AIS
External 0/0/0 E1 CRC4 Internal 1 FALSE FALSE
Use the show network-clock synchronization detail command to display all details of network-clock
synchronization parameters at the global and interface levels.
Router# show network-clocks synchronization detail
Symbols: En - Enable, Dis - Disable, Adis - Admin Disable
NA - Not Applicable
* - Synchronization source selected
# - Synchronization source force selected
& - Synchronization source manually switched
Automatic selection process : Enable
Equipment Clock : 2048 (EEC-Option1)
Clock Mode : QL-Disable
ESMC : Disabled
Command Purpose
Router(config-if)# synce state slave
Configures synchronous ethernet copper port as slave.
Router(config-if)# synce state master
Configures synchronous ethernet copper port as master.