Users Guide

Example: Configure boundary clock with IPv4 unicast transport
method and L3 VLAN
Ensure that the interface connected to the grandmaster clock is configured as a slave device with a list of master clock IP
addresses. Configure the other interface as a master clock with a list of slave device IP addresses. Both the interfaces are only
reachable through the L3 VLAN.
In this example:
Interface 1 that is part of VLAN 100 is connected to the grandmaster clock.
The grandmaster clock is reachable only through VLAN 100.
Interface 2 that is part of VLAN 200 is connected to the slave device.
The slave device is reachable only through VLAN 200.
Use unicast transport mode when you have clearly defined the role of each node in your deployment. To configure a boundary
clock with two PTP interfaces using IPv4 unicast transport method:
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.
The interface is a trunk port.
A source address is configured for unicast transport from the slave device to the master clock device.
The unicast IP traffic flows through the PTP-enabled interface and reaches the destination. The system applies hardware
time stamps on PTP packets.
OS10(config)# interface vlan 100
OS10(conf-if-vl-100)# ip address 10.10.10.1/24
OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# switchport mode trunk
OS10(conf-if-eth1/1/1)# switchport trunk allowed vlan 100
OS10(conf-if-eth1/1/1)# ptp vlan 100
OS10(conf-if-eth1/1/1)# ptp transport ipv4 unicast slave
OS10(conf-ethernet1/1/1-ptp-ipv4-slave)# source 10.10.10.1
OS10(conf-ethernet1/1/1-ptp-ipv4-slave)# master 10.10.10.2
OS10(conf-if-eth1/1/1)# ptp enable
3. Enable PTP on interface 2 with IPv4 unicast transport mode.
The interface is an access port.
Configure a source IP address for unicast transport from the master device to the slave device.
System management
227