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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/SYNC_BAD:[STRING] clock synchronization is bad. (CurClockSource=[STRING])


Frequent offset of the clock source exceeds the threshold three consecutive times. This indicates that the clock synchronization fails.


Parameter Name Parameter Meaning


Indicates the type of source selection. The values are as follows:
  • 1) system: system clock.
  • 2) bits0: bits0 clock.
  • 3) bits1: bits1 clock.


Indicates the type of the clock source. The values are as follows:
  • 0) Inner Clock: internal clock.
  • 1) BITS0: BITS0 clock.
  • 2) BITS1: BITS1 clock.
  • 3) Peer Board BITS0: BITS0 clock on the peer board.
  • 4) Peer Board BITS1: BITS1 clock on the peer board.
  • 5) Left Frame Clock: clock of the left frame.
  • 6) Right Frame Clock: clock of the right frame.
  • 7) FSU: flexible service unit.
  • 8) Peer Board FSU: flexible service unit of the peer board.
  • 9) System Clock: system clock.
  • 10) Peer System Clock: system clock of the peer board.

Possible Causes

The performance of the traced clock source degrades.


  • 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.
  • Check whether the clock configurations of the upstream device and downstream device are correct and whether the output mode of the upstream device is the same as the input mode of the local device (bit/hz).
  • Check the frequent offset of the upstream clock source. The tool 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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