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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 22 Configuring Clocking
Configuring PTP for the Cisco ASR 901 Router
4. priority1 priority-value
5. priority2 priority-value
6. clock-port port-name master
7. transport ipv4 unicast interface interface-type interface-number
8. clock-destination clock-ip-address
9. sync interval interval
10. announce interval interval
11. end
DETAILED STEPS
Command Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
ptp clock ordinary domain
domain
Example:
Router(config)# ptp clock ordinary
domain 0
Configures the PTP clock as an ordinary clock and enters
clock configuration mode.
• domain—The PTP clocking domain number. The
range is from 0 to 127.
Step 4
priority1
priority-value
Example:
Router(config-ptp-clk)# priority1 4
(Optional) Sets the preference level for a clock.
• priority-value—The range is from 0 to 255. The
default is 128.
Step 5
priority2
priority-value
Example:
Router(config-ptp-clk)# priority2 8
(Optional) Sets a secondary preference level for a clock.
The priority2 value is considered only when the router is
unable to use priority1 and other clock attributes to select
a clock.
• priority-value—The range is from 0 to 255. The
default is 128.
Step 6
clock-port
port-name
master
Example:
Router(config-ptp-clk)# clock-port
Master master
Sets the clock port to PTP master and enters clock port
configuration mode. In master mode, the port exchanges
timing packets with PTP slave devices.