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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).
CES_ACR_LOCK_ABN

CES_ACR_LOCK_ABN

Description

The CES_ACR_LOCK_ABN alarm indicates that a configured CES ACR clock is not working in trace mode or is working in trace mode but is not locked to the reference clock source.

Attribute

Alarm Severity Alarm Type

Minor

Service 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

Parameters 1 to 4

Indicate the PW index, which is the ID of the PW that is bound with the ACR clock.

Parameter 5

Indicates the clock mode.

  • 0x01: trace
  • 0x02: holdover
  • 0x03: free-run

Parameter 6

Indicates whether the clock is locked to the reference clock source.

0x00: unlocked

Impact on the System

The service quality is affected.

Possible Causes

Possible causes of the CES_ACR_LOCK_ABN alarm are as follows:

  • The CES ACR-associated service is unavailable or a CES service alarm is reported.
  • The network is unstable.
  • NEs on the alarmed CES service path are malfunctioning.

Procedure

  1. Check whether the CES ACR-associated service is unavailable or whether any CES service alarms, such as CES_MISORDERPKT_EXC, are reported. If a CES service alarm is reported, handle it first and then check whether the CES_ACR_LOCK_ABN alarm is cleared.
    If... Then...

    The CES_ACR_LOCK_ABN alarm is cleared

    No further action is required.

    The CES_ACR_LOCK_ABN alarm persists

    Go to the next step.

  2. Query the service performance count and check whether any jitter or delay events occur on the network. Analyze the network based on the service performance data. If the network is unstable, rectify the faults on the network, or switch the service carrying the CES ACR clock to a stable network. Check whether the CES_ACR_LOCK_ABN alarm is cleared.
    If... Then...

    The CES_ACR_LOCK_ABN alarm is cleared

    No further action is required.

    The CES_ACR_LOCK_ABN alarm persists

    Go to the next step.

  3. Query the QoS settings, traffic count, and alarms on the service path. Check whether the QoS settings are incorrect and the network traffic is abnormal. If yes, optimize the QoS settings based on the actual network and ensure that the network traffic is normal. Check whether the CES_ACR_LOCK_ABN alarm is cleared.
    If... Then...

    The CES_ACR_LOCK_ABN alarm is cleared

    No further action is required.

    The CES_ACR_LOCK_ABN alarm persists

    Go to the next step.

  4. Check whether any NEs on the CES service path and service processing boards are malfunctioning. After ensuring that the NEs and the service processing boards are normal, check whether the alarm is cleared.
    If... Then...

    The alarm is cleared

    No further action is required.

    The alarm persists

    Contact Huawei technical support engineers to handle the alarm.

Related Information

None.

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Updated: 2019-01-21

Document ID: EDOC1100020975

Views: 82322

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