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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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The LPT_RFI is the remote failure indication of Link state pass-through (LPT).


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 IP port number.

Parameter 2, parameter 3

Indicates the logical port number, and the value is always 0x01.

Parameter 4, parameter 5

Reserved. Each parameter has a fixed value of 0xff.

Impact on the System

The LPT protection is enabled and the services of the working path are interrupted.

Possible Causes

The possible causes of the LPT_RFI alarm are as follows:

  • In the case of the board configured with LPT, if the Ethernet port at the local end fails, the opposite end reports the LPT_RFI alarm; if the SDH path fails, the local end and the opposite end report the LPT_RFI alarm.


  1. Check whether the fiber is normal. If the fiber is faulty, replace the fiber.
  2. Check whether the cable is normal. If the cable is faulty, replace the cable.
  3. Check whether the services are correctly configured. If the configuration is incorrect, modify the configuration and issue it again.

Related Information


Updated: 2019-01-21

Document ID: EDOC1100020975

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