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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 Frequency Offset Check

Configuring Frequency Offset Check


If the frequency offset of a clock source is out of the valid range, the clock source is considered unavailable.

You can set the valid range of frequency offset to affect the result of clock source selection as required.


  1. Run:


    The system view is displayed.

  2. Run:

    clock freq-check

    Frequency offset check is enabled to affect clock source selection.

    By default, the result of frequency offset check does not affect clock source selection.

  3. Run:

    clock freq-check-range left-range right-range

    The valid range of the frequency offset is set. If the frequency offset of a clock source is out of the specified range, the frequency offset is too high.

    By default, the maximum left frequency offset is -9.2 ppm, and the maximum right frequency offset is 9.2 ppm.

Updated: 2019-08-21

Document ID: EDOC1000142080

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