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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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MPLS_PW_MISMATCH

MPLS_PW_MISMATCH

Description

The MPLS_PW_MISMATCH alarm indicates incorrect PW TTSIs. This alarm is reported if no CV/FFD packet with a correct TTSI (including the PW ID and NE ID) is received in three consecutive CV/FFD periods.

Attribute

Alarm Severity Alarm Type

Major

Communication alarm

Parameters

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

LSRID/MEGID: Indicates the source of the packet.

Impact on the System

Services may be interrupted or packets from other PWs are received.

Possible Causes

Possible causes of the MPLS_PW_MISMATCH alarm are as follows:

  • The PW settings are incorrect. The LSR ID or PW ID at one end of the PW are different from that at the other end.
  • The physical link is connected incorrectly.

Procedure

  1. On the U2000, check whether the LSR IDs are the same at the source and sink ends of the PW.
    If... Then...

    The LAR IDs are the same

    Go to the next step.

    The LAR IDs are different

    Reconfigure the LSR IDs to be the same at the source and sink ends of the PW, and check whether the alarm is cleared. If the alarm persists, go to the next step.

    NOTE:
    If the source NE is an ingress node, Opposite LSR ID is the LSR ID of the sink NE. If the sink NE is an egress node, Opposite LSR ID is the LSR ID of the source NE.
  2. On the U2000, check whether the PW IDs are the same at the source and sink ends of the PW.
    If... Then...

    The PW IDs are the same

    Go to the next step.

    The PW IDs are different

    Reconfigure the PW IDs to be the same at the source and sink ends of the PW, and check whether the alarm is cleared. If the alarm persists, go to the next step.

  3. Check whether an optical fiber or a cable is incorrectly connected between both ends.
    If... Then...

    An optical fiber or cable is incorrectly connected

    Rectify the connection or service configurations based on the actual networking scenario. Check whether the alarm is cleared. If the alarm persists, go to the next step.

    No optical fiber or cable is incorrectly connected

    Go to the next step.

  4. If the alarm persists, contact Huawei technical support engineers to handle the alarm.

Related Information

None.

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Updated: 2019-01-21

Document ID: EDOC1100020975

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