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Configuration Guide - Device Management

S2720, S5700, and S6720 V200R013C00

This document describes the configurations of Device Management, including device status query, hardware management, Stack, SVF, cloud-based management, PoE, monitoring interface, OPS, energy-saving management, information center, fault management, NTP, synchronous ethernet, PTP.

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Configuring Frequency Offset Check

Configuring Frequency Offset Check


If the frequency offset value of a clock source is out of scope, the clock source is considered invalid and does not participate in clock source selection.

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


  1. Run system-view

    The system view is displayed.

  2. Run clock freq-deviation-detect enable

    Frequency offset check is enabled to affect clock source selection.

    By default, frequency offset check is not enabled for clock signals.

  3. Run clock alarm-threshold frequency-offset frequency-offset-value

    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 frequency offset is 9200ppb.

Updated: 2019-04-20

Document ID: EDOC1100065674

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