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Configuration Guide - Device Management

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of Device Management, including device status query, hardware management, Information Center Configuration, NTP, Synchronous Ethernet Configuration, Fault Management Configuration, Energy-Saving Management Configuration, Performance Management Configuration, Maintenance Assistant Configuration, and OPS Configuration.
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(Optional) Configuring UTC Time Correction

(Optional) Configuring UTC Time Correction


The UTC is Greenwich Mean Time (GMT) that is displayed on a 1588v2 device. There is a fixed offset between the UTC and TAI. The International Earth Rotation Service (IERS) periodically advertises the offset.

When 1588v2 devices trace an external clock source, they use the offset provided by the external clock source by default. After signals of the external clock source are lost, they continue to use this offset. If the offset changes, time signals of the entire 1588v2 network may be inaccurate.

To manually set the offset between the UTC time and TAI time, you only need to run the ptp utc-offset command on the grandmaster clock. Other 1588v2 devices only need to synchronize the time with the grandmaster clock.


  1. Run system-view

    The system view is displayed.

  2. Run ptp utc-offset utc-offset

    An accumulative offset between the UTC and TAI time is set.

    By default, the accumulative offset between the UTC and TAI time is 0.

  3. Run commit

    The configuration is committed.

Updated: 2019-04-20

Document ID: EDOC1100075362

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