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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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LP_UNEQ

LP_UNEQ

Description

The LP_UNEQ alarm indicates that the lower order path is not loaded with signals. This alarm is generated when a board detects that the signal label in the V5 byte is 0.

NOTE:

The V5 byte is used to detect bit errors and indicate a remote error or failure in the lower order path.

Attribute

Alarm Severity Alarm Type

Minor

Communication alarm

Parameters

None.

Impact on the System

The lower order path services are unavailable. If the services are configured with protection, the protection switching is triggered.

Possible Causes

Possible causes of this alarm are as follows:

  • The lower order path at the local end is configured with services, but the lower order path at the opposite end is not configured with services.
  • The cross-connection configurations on the transit NEs are incorrect.

Procedure

  1. Check whether the lower order path at the opposite end is configured with services.

    If... Then...

    The lower order path at the opposite end is not configured with services

    Configure services for the lower order path at the opposite end. Then, check whether the alarm is cleared. If the alarm persists, go to the next step.

    The lower order path at the opposite end is configured with services

    Go to the next step.

  2. Check whether the cross-connect configurations on the transit NEs are correct.

    If... Then...

    The cross-connect configurations are incorrect

    Correct the cross-connect configurations. Then, check whether the alarm is cleared. If the alarm persists, go to the next step.

    The cross-connect configurations are correct

    Go to the next step.

  3. Check whether the attributes of the board are correctly configured. If the attributes are incorrectly configured, modify the incorrect configuration. Then, the LP_UNEQ alarm is automatically cleared.

Related Information

None.

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Updated: 2019-01-21

Document ID: EDOC1100020975

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