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Dell EMC SmartFabric OS10 User Guide Release 10.5.1

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Example: Configure boundary clock with IPv4 multicast transport method

You must connect the grandmaster clock to one of the interfaces. In this example, interface 1 is connected to the grandmaster clock.

Configure a boundary clock with two PTP interfaces using IPv4 multicast transport. The interface that is connected to the grandmaster clock or the best master clock becomes the slave device. The other interface becomes the master device.
NOTE: For L3 interface, the interface IP address is used as the PTP multicast source IP address. If there is no interface IP address, then the multicast source IP address (GLOBAL CONFIGURATION mode) is used as the PTP source IP address.
  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. Configure the multicast source IP address. 
    OS10(config)# ptp source ipv4 10.10.10.1
  3. Enable PTP on interface 1 with IPv4 multicast transport mode.

    PTP role is dynamic by default. For multicast transport mode, when you enable PTP, the system sends a join message. 

    OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# ptp transport ipv4 multicast
OS10(conf-if-eth1/1/1)# ptp enable
  4. Enable PTP on interface 2 with IPv4 multicast transport mode.

    PTP role is dynamic by default. For IPv4, multicast is the default transport mode. 

    OS10(config)# interface ethernet 1/1/2
OS10(conf-if-eth1/1/2)# ptp transport ipv4 multicast
OS10(conf-if-eth1/1/2)# ptp enable
Interface 1 becomes the slave device and interface 2 becomes the master clock for other devices.

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