Cisco Systems A9014CFD manual Clock source source-address, 22-22

Chapter 22 Configuring Clocking

Configuring PTP for the Cisco ASR 901 Router

4.clock-port port-nameslave

5.transport ipv4 unicast interface interface-typeinterface-number

6.clock source source-address

7.announce timeout value

8.delay-req interval interval

9.sync interval interval

10.end

	Note	PTP redundancy is an implementation on different clock nodes by which the PTP slave clock node
		interacts with multiple master ports such as grand master, boundary clock nodes, and so on. A new servo
		mode is defined under PTP to support high PDV scenarios (when the PDVs exceed G.8261 standard
		profiles). You should use the servo mode high-jitter command to enable this mode on the PTP slave. In
		servo mode, convergence time would be longer than usual, as this mode is meant only for frequency
		synchronization.
DETAILED STEPS
		Command	Purpose
	Step 1	enable	Enables privileged EXEC mode.
			• Enter your password if prompted.
		Example:
		Router> enable
	Step 2	configure terminal	Enters global configuration mode.
		Example:
		Router# configure terminal
	Step 3	ptp clock ordinary domain domain	Configures the PTP clock as an ordinary clock and enters
			clock configuration mode.
		Example:
		Router(config)# ptp clock ordinary
		domain 0
	Step 4	clock-port port-namemaster	Sets the clock port to PTP slave mode and enters clock port
			configuration mode. In slave mode, the port exchanges
		Example:	timing packets with a PTP master clock.
		Router(config-ptp-clk)# clock-port
		Slave slave
	Step 5	transport ipv4 unicast interface	Sets port transport parameters.
		interface-type interface-number	• interface-type—The type of the interface.
		Example:	• interface-number—The number of the interface.
		Router(config-ptp-port)# transport
		ipv4 unicast interface loopback 0

	Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
22-22	OL-23826-09