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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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HP_RDI

HP_RDI

Description

The HP_RDI alarm indicates that the board at the local end receives from the board at the opposite end a message indicating a remote receive failure in the higher order path.

Attribute

Alarm Severity Alarm Type

Minor

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 optical port number. The parameter has a fixed value of 0x01.

Parameter 2, Parameter 3

Indicate the VC-4 path ID.

Impact on the System

This alarm indicates that the remote path-level services are interrupted, and it does not have any impact on the local end.

Possible Causes

Possible causes of this alarm are as follows:

  • The opposite end receives the AU_AIS, AU_LOP, HP_SLM, or HP_TIM alarm.
  • The receive unit at the opposite end is faulty.
  • The transmit unit at the local end is faulty.

Procedure

  1. Check whether the opposite end reports a higher order alarm.

    If... Then...

    The opposite end reports the AU_AIS, AU_LOP, HP_TIM, or HP_SLM alarm

    Clear the AU_AIS, AU_LOP, HP_TIM, or HP_SLM alarm. Then, check whether the HP_RDI alarm is cleared. If the HP_RDI alarm persists, go to the next step.

    The opposite end does not report the AU_AIS, AU_LOP, HP_TIM, or HP_SLM alarm

    Go to the next step.

  2. Perform loopbacks at the local end and the opposite end to locate the faulty board.

    If... Then...

    A board at the opposite end reports the HP_RDI alarm

    The board at the opposite end is faulty. Replace the faulty board.

    A board at the local end reports the HP_RDI alarm

    The board at the local end is faulty. Replace the faulty board.

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Updated: 2019-01-21

Document ID: EDOC1100020975

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