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Configure G.8275.2 Enhanced Profile

Note:

When you enable the G.8275.2 enhanced profile, you cannot enable any other profile.

Configure PTP and Its Options

This topic includes the following tasks:

Configure PTP Options

To configure PTP options:

  1. In configuration mode, go to the [edit protocols ptp] hierarchy level:
  2. Configure the clock mode as either boundary or ordinary. This attribute is mandatory and has no default value.

    The boundary option signifies that both timeTransmitter and timeReceiver must be configured. The ordinary option signifies that only the timeTransmitter, or only the timeReceiver, must be configured.

  3. Configure the profile type as g.8275.2.enh (the G.8275.2.enh profile type provides the telecom profile). This attribute is mandatory.
  4. (Optional) Configure the PTP domain option with a value from 44 through 63. The default value is 44.
  5. (Optional) Configure the priority2 option with values from 0 through 255. The default value is 128.

    The priority2 value differentiates and prioritizes the timeTransmitter clock to avoid confusion when priority1-value is the same for different timeTransmitter clocks in a network.

  6. (Optional) Configure the unicast-negotiation option.

    Unicast negotiation is a method by which the announce, sync, and delay response packet rates are negotiated between the timeTransmitter clock and the timeReceiver clock before a PTP session is established.

    Note:

    Unicast negotiation, when enabled, does not allow you to commit any packet rate–related configuration.

Configure TimeReceiver Clock Options

Configure the following options after the aforementioned PTP options have been set.

  1. Configure the timeReceiver clock.
  2. (Optional) Configure the delay-request option in the timeReceiver node. The range is -7 to -3 seconds, and the default values are -6 for the timeTransmitter and -7 for the timeReceiver.

    The delay request value is the logarithmic mean interval in seconds between the delay request messages sent by the timeReceiver to the timeTransmitter.

  3. Configure the interface for the timeReceiver.
    Note:

    You can configure an aggregated Ethernet interface and its configured IP address for PTP streams acting as timeReceiver clocks or timeTransmitter clocks.

    For example, to configure a timeReceiver using an aggregated Ethernet interface:

    Note:

    You can configure a loopback interface (there is only one loopback interface, and it is lo0.0) and its corresponding IP addresses for PTP streams acting as timeReceiver clocks or timeTransmitter clocks. Although the loopback interface is the same for both timeTransmitter clocks and timeReceiver clocks, the IP addresses must be unique.

    For example, to configure a timeReceiver using the loopback interface:

  4. Configure the unicast-mode option for the timeReceiver.
  5. Configure the transport option in unicast mode as IPv4 or IPv6.
  6. Configure the clock source and the IP address of the interface acting as the local PTP timeReceiver port. Optionally, configure the global asymmetry, timeTransmitter-asymmetry or secondary-asymmetry value. Primary and secondary asymmetry values take precedence, if defined.
    Note:

    You must configure this IP address at the [edit interfaces interface-name] hierarchy level.
  7. (Optional) Configure the priority assigned to the interface acting as the local PTP timeReceiver port.

Configure TimeTransmitter Clock Options

Configure the following options after the aforementioned PTP options and timeReceiver clock options have been set.

  1. Configure the timeTransmitter clock.
  2. Configure the interface for the timeTransmitter.
    Note:

    You can configure an aggregated Ethernet interface and its configured IP address for PTP streams acting as timeReceiver clocks or timeTransmitter clocks.

    For example, to configure a timeTransmitter using an aggregated Ethernet interface:

    Note:

    You can configure a loopback interface (there is only one loopback interface, and it is lo0.0) and its corresponding IP addresses for PTP streams acting as timeReceiver clocks or timeTransmitter clocks. Although the loopback interface is the same for both timeTransmitter clocks and timeReceiver clocks, the IP addresses must be unique.

    For example, to configure a timeTransmitter using the loopback interface:

  3. Configure the unicast mode option for the timeTransmitter.
  4. Configure the transport option in unicast mode as IPv4 or IPv6.
  5. Configure the remote clock source and the IP address of the interface acting as the timeTransmitter.