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Log Reference

S9300, S9300E, and S9300X V200R010C00

This document provides the explanations, causes, and recommended actions of logs on the product.
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CLOCK/4/FREQ_INSTANT_CHG:The frequency changes instantly. (Value=[LONG], Count=[ULONG])


The number of frequency changes is not 0. The log records the latest change and number of frequency changes.


Parameter Name Parameter Meaning


Indicates the latest frequency after change.


Indicates the counter of frequency change.

Possible Causes

The performance of the traced clock source degrades or the jitter occurs.


  • If the clock source is switched, this is a normal situation.
  • If the clock source of the upstream device is switched, this is a normal situation.
  • Run the display clock { bits0 | bits1 } command to view the BITS interface configuration. Check whether the clock configurations of upstream and downstream devices are correct, for example, whether bit/hz in the output mode of the upstream device is the same as that in the input mode of the local device.
  • Check the frequent offset of the upstream clock source. Tools may be required.
  • After the clock source is switched, if the log is generated on all interfaces of the local device, the local clock board may be faulty. Then perform an active/standby switchover on the clock boards.
  • Record this log message and contact technical support personnel.
Updated: 2019-08-21

Document ID: EDOC1000142069

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