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Dell EMC SmartFabric OS10 User Guide Release 10.5.1

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Example: Configure boundary clock with IPv4 unicast transport method

Ensure that you configure the interface connected to the grandmaster clock as a slave device with a list of master device IP addresses. Configure the other interface as the master device with a list of slave device IP addresses. In this example, the grandmaster clock is connected to interface 1.

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.

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