Users Guide

Table Of Contents
Configure a boundary clock with two PTP interfaces using IPv4 unicast transport. Use unicast
transport mode when you have clearly defined the role of each node in your deployment.
1. Configure the PTP boundary clock.
The delay mechanism of the boundary clock is end-to-end by default.
OS10(config)# ptp clock boundary
2. Enable PTP on interface 1 with IPv4 unicast transport mode.
For L3 interface, if you have not configured the source IP address, the interface IP address is used as the source IP address
for unicast transport from the slave device to the master device.
OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# ip address 10.10.10.1/24
OS10(conf-if-eth1/1/1)# ptp transport ipv4 unicast slave
OS10(conf-ethernet1/1/1-ptp-ipv4-slave)# master 10.10.10.2
OS10(conf-ethernet1/1/1-ptp-ipv4-slave)# exit
OS10(conf-if-eth1/1/1)# ptp enable
3. Enable PTP on interface 2 with IPv4 unicast transport mode.
For both L2 and L3 interfaces, the configured source IP address is used as the source IP address for unicast transport from
the master device to the slave device.
OS10(config)# interface ethernet 1/1/2
OS10(conf-if-eth1/1/1)# ip address 30.30.30.1/24
OS10(conf-if-eth1/1/2)# ptp transport ipv4 unicast master
OS10(conf-ethernet1/1/2-ptp-ipv4-master)# source 20.20.20.1
OS10(conf-ethernet1/1/2-ptp-ipv4-master)# slave 20.20.20.2
OS10(conf-ethernet1/1/2-ptp-ipv4-master)# exit
OS10(conf-if-eth1/1/2)# ptp enable
In this example, a source address different from the interface IP address is configured because the slave device is reachable
in a different subnet of the source IP address.
Interface 1 becomes the slave device and interface 2 becomes the master clock for the other devices.
Example: Configure end-to-end transparent clock
Ensure that you configure the following on the OS10 switch:
Enable IP multicast routing.
Configure the IP address on the PTP-enabled interfaces.
Enable PIM sparse mode on the PTP-enabled interfaces.
Configure a rendezvous point (RP) or a bootstrap router (BSR).
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System management