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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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ALM_GFP_dCSF

ALM_GFP_dCSF

Description

The ALM_GFP_dCSF is an alarm indicating the loss of GFP client signal. When the source end cannot receive the client signal, it sends the management frame to the sink end. When the sink end receives the management frame, the ALM_GFP_dCSF alarm is reported.

Attribute

Alarm Severity Alarm Type

Critical

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

The ID of the logical port, and the value is always 0x01.

Parameter 2, parameter 3

Indicate the VCTRUNK number where the alarm occurs.

Impact on the System

During data transmission, the source end cannot receive the client signal. The services lose packets or are interrupted.

Possible Causes

The possible causes of the ALM_GFP_dCSF alarm are as follows:

  • Cause 1: The interface module at the source end is incorrect. For example, the interface is faulty, or the board is faulty.
    Figure 4-1  ALM_GFP_dCSF alarm detection 1

  • Cause 2: The board that reports the alarm is faulty.
    Figure 4-2  ALM_GFP_dCSF alarm detection 2

Procedure

  1. Cause 1: The interface module at the source end is incorrect. For example, the interface is faulty, or the board is faulty.
    1. As shown in Figure 4-1, check whether the interface module at the source end works normally.

      If...

      Then...

      A board at the source end reports an alarm (such as ETH_LOS alarm) associated with an ethernet port

      Clear the alarm immediately. Check whether the ALM_GFP_dCSF alarm is cleared. If the alarm persists, go to the next step.

      No alarm is reported

      Go to the next step.

    2. Replace the corresponding board at the source end.
    3. Check whether the alarm is cleared. If the alarm persists, go to 2.
  2. Cause 2: The board that reports the alarm is faulty.
    1. Replace the board that reports the alarm.
    2. Check whether the alarm is cleared. 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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