Cisco Systems A9014CFD manual 22-28

Chapter 22 Configuring Clocking

Configuring PTP for the Cisco ASR 901 Router

8.transport ipv4 unicast interface interface-typeinterface-number[negotiation]

9.exit

DETAILED STEPS

	Command or Action	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 boundary domain domain	Configures the PTP boundary clock and enters clock
		configuration mode.
	Example:	• domain—The PTP clocking domain number. Valid
	Router(config)# ptp clock boundary	values are from 0 to 127.
	domain 0
Step 4	clock-port port-nameslave	Sets the clock port to PTP slave mode and enters the 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.
	[negotiation]
		• interface-number—The number of the interface.
	Example:	• negotiation—(Optional) Enables dynamic discovery
	Router(config-ptp-port)# transport	of slave devices and their preferred format for sync
	ipv4 unicast interface Loopback 0	interval and announce interval messages.
	negotiation
Step 6	clock source source-address	Specifies the address of a PTP master clock.
	Example:
	Router(config-ptp-port)# clock
	source 133.133.133.133
Step 7	clock-port port-namemaster	Sets the clock port to PTP master mode. In master mode,
		the port exchanges timing packets with PTP slave devices.
	Example:	Note The master clock-port does not establish a clocking
	Router(config-ptp-port)# clock-port	session until the slave clock-port is phase aligned.
	Master master

	Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
22-28	OL-23826-09