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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
SYNC_LOCKOFF

SYNC_LOCKOFF

Description

The SYNC_LOCKOFF alarm indicates that the clock source in the priority list is locked.

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 locked clock source is located.

Parameter 2

Indicates the number of the slot in the subrack where the locked 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 locked 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.

Impact on the System

When the SYNC_LOCKOFF alarm is generated, the relevant clock source is locked and cannot be traced by the NE. This alarm itself does not affect services.

Possible Causes

Cause 1: The NE software issues a command to lock the clock source.

Procedure

  • View the SYNC_LOCKOFF alarm on the NMS, and then determine the locked clock source according to the alarm parameters.
  • Cause 1: The NE software issues a command to lock the clock source.
    1. After the lockout of the clock source is released on the NMS, the SYNC_LOCKOFF alarm is automatically cleared.

Related Information

None

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Updated: 2019-01-21

Document ID: EDOC1100020975

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