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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).
TUNNEL_APS_DEGRADED

TUNNEL_APS_DEGRADED

Description

The TUNNEL_APS_DEGRADED alarm indicates that a tunnel APS protection group degrades. This alarm is reported when the protection tunnel in a tunnel APS protection group fails and is cleared after the protection tunnel recovers.

NOTE:
This alarm is also cleared when the working and protection tunnels of the group fail.

Attribute

Alarm Severity Alarm Type

Major

Service alarm

Parameters

None.

Impact on the System

The tunnel APS protection group cannot perform protection switching.

Possible Causes

Possible causes of the TUNNEL_APS_DEGRADED alarm are as follows:

  • The port connected to the protection tunnel is disabled.
  • Fiber connections are incorrect.
  • The protection tunnel is faulty.

Procedure

  1. Query the status of the tunnel APS protection group on the U2000 and identify the protection tunnel.
  2. Check whether the port connected to the protection tunnel is disabled.

    If... Then...

    The tunnel port is disabled

    Enable the port. Check whether the alarm is cleared. If the alarm persists, go to the next step.

    The tunnel port is enabled

    Go to the next step.

  3. Check whether fiber connections to the port that is connected to the protection tunnel are incorrect.

    If... Then...

    Fiber connections are incorrect or fibers are faulty

    Rectify the incorrect fiber connections or replace the faulty fibers. Check whether the alarm is cleared. If the alarm persists, go to the next step.

    Fiber connections are correct

    Go to the next step.

  4. Check whether the port connected to the protection tunnel reports any alarms.

    If... Then...

    The port reports alarms

    Clear these alarms first. Check whether the TUNNEL_APS_DEGRADED alarm is cleared. If the TUNNEL_APS_DEGRADED alarm persists, go to the next step.

    The port reports no alarm

    Go to the next step.

  5. Contact Huawei technical support engineers to handle the TUNNEL_APS_DEGRADED alarm.

Related Information

None.

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Updated: 2019-01-21

Document ID: EDOC1100020975

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