No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

Rate and give feedback:
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).



MRING_OAM_UNEXPPER_E is an alarm indicating that a east port on an MPLS-TP ring receives unexpected period information. This alarm occurs when a east port on an MPLS-TP ring receives a CCM packet whose period information is incorrect.


Alarm Severity Alarm Type


Communication alarm


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 board ID.

Impact on the System

This alarm triggers APS switching on the MPLS-TP ring.

Possible Causes

A possible cause of the alarm is as follows:

  • Cause: The period information of CCM packets differs on the NEs of the MPLS-TP ring.


  1. Cause: The period information of CCM packets differs on the NEs of the MPLS-TP ring.
    1. Check the period information of CCM packets on each NE and ensure that the period information of CCM packets is consistent on each NE. For details, see Creating an MPLS-TP Protection Ring.
    2. Check whether the alarm is cleared. If the alarm persists, contact Huawei technical support engineers to handle the alarm.

Related Information


Updated: 2019-01-21

Document ID: EDOC1100020975

Views: 76310

Downloads: 138

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Previous Next