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Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-17
Chapter 12 IEEE 1588v2 PTP Support
Configuring IEEE 1588v2 PTP
Router(config-ptp-port)# transport ipv4 unicast interface Loopback11 negotiation
Router(config-ptp-port)# clock destination 20.20.20.20
Router(config-ptp-port)# Sync interval -4
Router(config-ptp-port)# end
Configuring an Ordinary Clock as PTP Slave
This section describes how to configure Ordinary Clock as PTP slave.
SUMMARY STEPS
1. configure terminal
2. ptp clock ordinary domain domain_number
3. clock-port name slave
4. transport ipv4 unicast interface {GigabitEthernet | Loopback} interface-number {negotiation}
5. clock source ip-address
6. sync interval interval
7. end
DETAILED STEPS
Command Purpose
Step 1
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 2
ptp clock ordinary domain domain_number
Example:
Router(config)# ptp clock ordinary
domain 0
Creates a PTP clock and specifies the clock mode.
Step 3
clock-port name slave
Example:
Router(config-ptp-clk)# clock-port
SLAVE slave
Specifies the clocking mode of a PTP port and enters the
clock port configuration mode.
Step 4
transport ipv4 unicast interface
{GigabitEthernet | Loopback}
interface-number [negotiation]
Example:
Router(config-ptp-port)# transport ipv4
unicast interface Loopback22
negotiation
Specifies the IP version, transmission mode, and
interface that a PTP clock port uses to exchange timing
packets.
The negotiation keyword specifies the unicast
negotiation mode where the slave and master clock
exchanges negotiation messages before establishing a
relationship.
Note Only Loopback interface type is supported.