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Cisco ME-3600X-24CX Series Switch Chassis Configuration Guide
OL-27620-01
Chapter 4 Configuring Clocking and Timing
Clocking Sample Configurations
Configuring an External Clock Source
To configure an external clock source using Synchronous Ethernet, use the network-clock input-source
priority external 1/0/0 {{E1 {crc4 | cas |fas}} {T1 {d4 | sf | esf}} } command.
Switch(config)# network-clock input-source 1 external 1/0/0
Configuring Synchronous Ethernet ESMC and SSM
For instructions on how to configure synchronous Ethernet Synchronization Message Channel
(ESMC)and Synchronization Status Message (SSM), see
Configuring Synchronous Ethernet
in Cisco
ME 3800x and ME 3600x Switch Software Configuration Guide
Verifying Clock-Related Settings
Use the following commands to verify the clock settings:
•
show ptp clock dataset
•
show ptp port dataset
•
show ptp clock running
•
show platform ptp all
For more information about these commands, see the
Cisco ME 3800X and ME 3600X Switch Command
Reference, Release 15.2(4)S
.
Clocking Sample Configurations
The following sections show a sample configurations for clocking features on the switch.
Ordinary Clock—Slave
ptp clock ordinary domain 0
clock-port Slave slave
transport ipv4 unicast interface loopback 0 negotiation
clock-source 8.8.8.1
sync interval 1
announce timeout 7
delay-req interval 3
Ordinary Clock—Master
ptp clock ordinary domain 0
clock-port Master master
transport ipv4 unicast interface loopback 0 negotiation
Unicast Configuration—Slave Mode
ptp clock ordinary domain 0
clock-port Slave slave
transport ipv4 unicast interface loopback 0
clock-source 8.8.8.1