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).



The LCAS_PLCR is an alarm indicating the loss of partial bandwidth in the LCAS receive direction.


Alarm Severity Alarm Type


Service quality 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 optical interface number. The value is always 0x01.

Parameter 2, Parameter 3

Indicates the VCTRUNK port number.

Impact on the System

Partial configured paths are used in the receiving direction, as a result, the available bandwidth decreases.

Possible Causes

The possible causes of the LCAS_PLCR alarm are as follows:

  • When the LCAS function of the VCTRUNK is enabled, in the transmit direction, the number of paths that carry load is less than the number of paths configured and is not zero.


  1. Check the service configurations of the local and opposite station. Check whether the bound paths of the VCTRUNK are consistent. If any error exists, reconfigure the values.
  2. Check whether the unequipped path reports SDH alarms. If yes, see the handling procedure of the corresponding alarm.

Related Information


Updated: 2019-01-21

Document ID: EDOC1100020975

Views: 75791

Downloads: 138

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