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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).
VCAT_SQM_VC4

VCAT_SQM_VC4

Description

The VCAT_SQM_VC4 alarm indicates that the sequence numbers of the members in the VC-4 virtual concatenation do not match each other.

Attribute

Alarm Severity Alarm Type

Major

Communication 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 logical port number, and the value is always 0x01.

Parameter 2, Parameter 3

Indicates the VC-4 path number that generates the alarm.

Impact on the System

The data is restructured according to the received sequence numbers during the transmission. When errors occur during the restructuring, the framing fails and the services are interrupted.

Possible Causes

Possible causes of the VCAT_SQM_VC4 alarm are as follows:

  • The BIP_EXC alarm and BIP_SD alarm occur on the line.
  • The sequence number sent by the opposite end is incorrect.

Procedure

  1. Determine the board that reports the VCAT_SQM_VC4 alarm according to the alarm information on the U2000.
  2. Check whether the alarmed board reports the BIP_EXC alarm and BIP_SD alarm on the U2000. If the alarmed board reports the BIP_EXC alarm and BIP_SD alarm, clear the alarms. Then, check whether the VCAT_SQM_VC4 alarm is cleared.
  3. If the VCAT_SQM_VC4 alarm persists, check whether the alarmed board that reports the VCAT_SQM_VC4 alarm is faulty. Replace the alarmed board that reports the VCAT_SQM_VC4 alarm. Then, check whether the VCAT_SQM_VC4 alarm is cleared.
  4. If the VCAT_SQM_VC4 alarm persists, the sequence number sent by the opposite SDH end is incorrect. Replace the corresponding board on the NE at the opposite end. Then, check whether the VCAT_SQM_VC4 alarm is cleared.
  5. If 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

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