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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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SYNC_F_M_SWITCH

SYNC_F_M_SWITCH

Description

The SYNC_F_M_SWITCH alarm indicates the forced or manual switching state of a clock source.

Attribute

Alarm Severity Alarm Type

Warning

Equipment alarm

Parameters

When you view an alarm on the network management system, select the alarm. In the Alarm Details field display the related parameters of the alarm. The alarm parameters are in the following format: Alarm Parameters (hex): parameter1 parameter2...parameterN. For details about each parameter, refer to the following table.

Name Meaning

Parameter 1

Indicates the number of the subrack where the switched clock source is located.

Parameter 2

Indicates the number of the slot in the subrack where the switched clock source is located. If the external clock source is used, the value is always 0xf0.

Parameter 3

Indicates the reserved byte, whose value is always 0x00.

Parameter 4

In the case of the clock source of the service board, it indicates the number of the port in the subrack where the switched clock source is located.

In the case of the external clock source, it indicates the number of the external clock.
  • 0x01 indicates the first external clock.
  • 0x02 indicates the second external clock.

Parameter 5

Indicates the ID of the priority table. Valid values are as follows:
  • 0x01: priority table of the system clock

Impact on the System

When the SYNC_F_M_SWITCH alarm is generated, the NE clock works in the forced or manual switching state. This alarm does not affect services.

Possible Causes

Cause 1: A manual or forced switching command is issued for the clock source.

Procedure

  • View the SYNC_F_M_SWITCH alarm on the NMS, and then determine the relevant clock source according to the alarm parameters.
  • Cause 1: A manual or forced switching command is issued for the clock source.
    1. Clear the manual or forced switching for the relevant clock source, and the alarm is automatically cleared.

Related Information

None

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Updated: 2019-01-21

Document ID: EDOC1100020975

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