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Configuration Guide - Device Management

CloudEngine 12800 and 12800E 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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Configuring the Recovery Mode of a Clock Source

Configuring the Recovery Mode of a Clock Source

Context

The switch supports two recovery modes: revertive mode and non-revertive mode.

  • Revertive mode: If the optimal clock source is faulty, the system uses the clock source selection algorithm to select the sub-optimal clock source. When the optimal clock source recovers, it becomes the traced clock source again.
  • Non-revertive mode: If the optimal clock source is faulty, the system uses the clock source selection algorithm to select the sub-optimal clock source. If the optimal clock source recovers:
    • If SSM quality levels are not used for automatic clock source selection, the system still traces the sub-optimal clock source.
    • If SSM quality levels are used for automatic clock source selection and the optimal clock source has the same SSM quality level as the sub-optimal clock source, the system still traces the sub-optimal clock source.
    • If SSM quality levels are used for automatic clock source selection and the optimal clock source has a higher SSM quality level than the sub-optimal clock source, the system traces the optimal clock source again.

If the optimal clock source is unstable, the non-revertive mode is recommended, because this mode effectively reduces changes on the master clock source and ensures stable quality of the traced clock source.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run clock switch { revertive | non-revertive }

    The recovery mode of clock source selection is set.

    By default, the recovery mode is revertive.

  3. Run commit

    The configuration is committed.

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Updated: 2019-04-20

Document ID: EDOC1100074722

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