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S12700 V200R010C00 Configuration Guide - Device Management

This document describes the principles and configurations of the Device Management features, and provides configuration examples of these features.
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Configuring PTP Globally

Configuring PTP Globally

Context

When the master clock needs to transmit clock signals to multiple devices, configure a device as a BC. A BC provides multiple physical interfaces to participate in PTP clock synchronization. One interface receives clock signals from an upstream device, and the other interfaces send the clock signals to downstream devices.

To configure a PTP device as a BC, enable PTP globally on the device, configure the device type as BC, and perform BC configurations in the system view.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    ptp enable

    PTP is enabled.

    By default, PTP is disabled.

  3. (Optional) Run:

    ptp freq-sync

    Frequency synchronization is enabled.

    By default, time synchronization is enabled and frequency synchronization is disabled after PTP is enabled.

  4. Run:

    ptp device-type bc

    The device type is configured as BC.

    By default, no device type is configured for a PTP device.

  5. (Optional) Run:

    ptp domain domain-value

    The PTP domain to which the device belongs is configured.

    By default, a PTP device belongs to domain 0.
    NOTE:
    Devices that perform clock synchronization through PTP messages must belong to the same PTP domain.

  6. (Optional) Run:

    ptp virtual-clock-id clock-id-value

    A virtual clock ID is set for the device.

    By default, no virtual clock ID is configured for a PTP device, and the system generates a clock ID based on the MAC address of the device. You can also configure a virtual clock ID to identify the device.
    NOTE:

    When running the ptp virtual-clock-id command, ensure that the configured virtual clock ID is unique in the entire PTP domain.

  7. (Optional) Run:

    ptp acl enable

    Access control of the clock source is enabled.

    By default, access control of the clock source is disabled.

  8. (Optional) Run:

    ptp acl-permit-clockid clockid-value

    A specified master clock source is added to the clock source whitelist.

    By default, no clock source whitelist is configured.

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Updated: 2019-08-21

Document ID: EDOC1000142080

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