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Dell SmartFabric OS10 User Guide Release 10.5.4

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Example: Configure PTP time stamping mode

The OS10 switch can be configured with one-step or two-step mode for the system clock synchronization. By default, the one-step clock mode is used. To enable two-step clock mode, use the ptp clock-mode two-step command. In both clock modes, the switch accepts both one-step or two-step master clock synchronization.

The following example shows PTP two-step and one-step configuration. This configuration is applicable only on the master clock and not on the slave clock.

Two-step boundary clock

  1. Configure PTP boundary clock. 
    OS10(config)# ptp clock boundary
  2. Configure PTP clock mode. 
    OS10(config)# ptp clock-mode two-step
  3. Enable PTP slave on the port connecting to the master clock. 
    OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# ptp enable
OS10(conf-if-eth1/1/1)# ptp role slave
OS10(conf-if-eth1/1/1)# ptp transport layer2
OS10(conf-if-eth1/1/1)# exit
  4. Enable PTP master on the port connecting the one-step boundary clock. 
    OS10(config)# interface ethernet 1/1/2
OS10(conf-if-eth1/1/2)# ptp enable
OS10(conf-if-eth1/1/2)# ip address 10.0.0.1/24
OS10(conf-if-eth1/1/2)# ptp role master
OS10(conf-if-eth1/1/2)# ptp transport ipv4 multicast
OS10(conf-if-eth1/1/2)# exit
  5. Enable PTP master on the port connecting to the two-step slave clock. 
    OS10(config)# interface ethernet 1/1/3
OS10(conf-if-eth1/1/3)# no switchport
OS10(conf-if-eth1/1/3)# ip address 21.0.0.1/24
OS10(conf-if-eth1/1/3)# ptp transport ipv4 unicast master
OS10(conf-ethernet1/1/3-ptp-ipv4-master)# slave 21.0.0.2/24
OS10(conf-ethernet1/1/3-ptp-ipv4-master)# exit
OS10(conf-if-eth1/1/3)# exit
OS10(config)#

One-step boundary clock

  1. Configure PTP boundary clock. 
    OS10(config)# ptp clock boundary
  2. Configure PTP clock mode. 
    OS10(config)# ptp clock-mode one-step
  3. Enable PTP slave on port connecting to master. 
    OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# no switchport
OS10(conf-if-eth1/1/1)# ip address 21.0.0.2/24
OS10(conf-if-eth1/1/1)# ptp transport ipv4 unicast slave
OS10(conf-ethernet1/1/1-ptp-ipv4-slave)# master 21.0.0.1/24
OS10(conf-ethernet1/1/1-ptp-ipv4-slave)# exit
OS10(conf-if-eth1/1/1)# exit
OS10(config)#

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