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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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Checking the Configuration

Checking the Configuration


  • Run the display clock { bits0 | bits1 } [ slave ] command to view the configuration of the BITS clock, including the mode of the BITS clock, bit used to transmit the SDH synchronization status code (S1 byte), content of the S1 byte that is set forcibly, and whether the ID of the clock source is sent, and so on.
  • Run the display clock source command to view information about clock sources, including the validity of clock signals, SSM quality level, and ID of each clock source, and so on.
  • Run the display clock state interface interface-type interface-number command to view the clock status on an interface. You can use this command to query all the clock configurations on an interface.
  • Run the display clock freq-check-range command to view the valid range of the clock frequency offset.
  • Run the display clock freq-check-result command to view the result of frequency offset check.
  • Run the display clock hold-off-time command to view the delay time for the system to consider a clock source lost.
  • Run the display clock wait-to-restore command to view the WTR time of each clock source.
  • Run the display clock mode [ slave ] command to view whether the SSM quality level is used in clock source selection, whether the result of frequency offset check affects clock source selection, retrieve mode, holding mode, and running status of the clock module, and clock selection results of the external clocks, and so on.
  • Run the display clock { left-frame | right-frame } command to view the priorities of the clock signals that different interfaces send from the left side or right side of the frame.
  • Run the display clock lockout command to check whether a clock source is locked.
  • Run the display clock priority command to view the priorities of clock sources.
  • Run the display clock ql-unknown command to view the SSM quality level mapping the unknown level.
  • Run the display clock selection [ slave ] command to view the clock source selected by each external clock.
  • Run the display clock ssm-config command to view the SSM quality levels of clock sources.
Updated: 2019-08-21

Document ID: EDOC1000142080

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