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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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The MPLS_PW_RDI is an alarm indicating that a defect is detected on a remote PW. The local MEP NE sends an RDI packet to the remote MEP NE when it detects a PW defect. The remote MEP NE reports this alarm upon receiving the RDI packet.


Alarm Severity Alarm Type


Communication alarm



Impact on the System

When this alarm occurs, the local MEP NE cannot receive packets.

Possible Causes

The possible cause of the MPLS_PW_RDI alarm is as follows:

Cause: The local MEP NE detects that the PW is faulty.

Figure 4-13 shows the process of MPLS_PW_RDI alarm detection.

Figure 4-13  MPLS_PW_RDI alarm detection


  1. Check whether the faulty NE reports port-, optical module- or board-related alarms, such as ETH_LOS, ETH_LINK_DOWN, LSR_NO_FITED, and HARD_BAD. If any of these alarms exist, clear them before you proceed.
  2. If the alarm persists, check whether the physical link between faulty NEs is faulty, for example, whether the optical fiber or cable is damaged or pressed. If yes, replace the faulty optical fiber or cable.
  3. Check whether the faulty NE reports service alarms, such as MPLS_PW_LOCV. If yes, clear them immediately. Then, check whether the MPLS_PW_RDI alarm is cleared.
  4. 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

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