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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

Configuring Telecom Profile in Master Ordinary Clock

Complete the following steps to configure the telecom profile in the master ordinary clock.
Prerequisites
When configuring the telecom profile, ensure that the master and slave nodes have the same network
option configured.
Negotiation should be enabled for master and slave modes.
Cisco ASR 901 router must be enabled using the network-clock synchronization mode
QL-enabled command for both master and slave modes.
Restrictions
Telecom profile is not applicable for boundary clocks. It is only applicable for ordinary clocks.
Hybrid mode with OC-MASTER is not supported.
SUMMARY STEPS
1. enable
2. configure terminal
3. ptp clock ordinary domain domain
4. clock-port port-name master [profile g8265.1]
5. transport ipv4 unicast interface interface-type interface-number [negotiation]
6. end
Step 9 clock source
source-address
[
priority
]
Example:
Router(config-ptp-port)# clock
source 8.8.8.4 3
Specifies the address of an additional PTP master clock;
repeat this step for each additional master clock. You can
configure up to four master clocks.
Step 10 end
Example:
Router(config-ptp-port)# end
Exits clock port configuration mode and enters privileged
EXEC mode.
Command Purpose