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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).
SLAVE_WORKING

SLAVE_WORKING

Description

The SLAVE_WORKING alarm indicates that the protection board is working. This alarm occurs when the service bus of the service board selects the protection cross-connect board and the slave clock is selected as the system clock.

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

The value is always 0x00.

Parameter 2

The value is always 0x00.

Parameter 3

Indicates the slot ID of the cross-connect board.

Impact on the System

When the SLAVE_WORKING alarm occurs, the system is not affected. This alarm only indicates that the service bus of the service board selects the protection cross-connect board and the slave clock is selected as the system clock.

Possible Causes

Possible causes of this alarm are as follows:

  • The working cross-connect and timing board cannot be detected.
  • The working cross-connect and timing board is faulty.
  • The service board is faulty.
  • The active/standby status bus of the cross-connect and timing board is damaged.
  • The connection bus between the line board and the working cross-connect and timing board is damaged.

Procedure

  1. Check whether the active cross-connect board is installed securely.

    If... Then...

    The active cross-connect board is loose

    Install the active cross-connect board securely. Check whether the alarm is cleared. If the alarm persists, go to the next step.

    The active cross-connect board is installed securely

    Go to the next step.

  2. Perform a cold reset for the active cross-connect and timing board by using the NMS or reseat the board. Check whether the alarm is cleared.

    If there is no protection cross-connect and timing board, performing a cold reset on the working cross-connect and timing board may cause service interruptions.

    If... Then...

    The alarm persists

    Go to the next step.

    The alarm is cleared

    No further action is required.

  3. Replace the active cross-connect and timing board, and check whether the alarm is cleared.

    If... Then...

    The alarm persists

    Go to the next step.

    The alarm is cleared

    No further action is required.

  4. Perform a cold reset for the alarmed service board by using the NMS or reseat this board. Check whether the alarm is cleared.

    If the service on the board is not protected, a cold reset on the board causes service interruptions.

    If... Then...

    The alarm persists

    Go to the next step.

    The alarm is cleared

    No further action is required.

  5. Replace the alarmed board and check whether the alarm is cleared.

    If... Then...

    The alarm persists

    Contact Huawei technical support engineers for handling the alarm.

    The alarm is cleared

    No further action is required.

Related Information

None.

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Updated: 2019-01-21

Document ID: EDOC1100020975

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