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Alarm Handling

AR100-S, AR110-S, AR120-S, AR150-S, AR160-S, AR200-S, AR1200-S, AR2200-S, and AR3200-S V200R009

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L2IFPPI_1.3.6.1.4.1.2011.5.25.160.3.7 hwMflpVlanAlarm

L2IFPPI_1.3.6.1.4.1.2011.5.25.160.3.7 hwMflpVlanAlarm

Description

L2IFPPI/4/MFLPVLANALARM:OID [oid] Loop exists in vlan [INTEGER], for [OCTET].

MAC address flapping occurs.

Attribute

Alarm ID Alarm Severity Alarm Type
1.3.6.1.4.1.2011.5.25.160.3.7 Warning equipmentAlarm(5)

Parameters

Name Meaning
oid

Indicates the MIB object ID of the alarm.

VLAN Indicates the VLAN ID.
OCTET Indicates the cause why the interface is blocked.

Impact on the System

Traffic cannot be received normally.

Possible Causes

Cause 1:

The interfaces where loops occur are added to the same VLAN.

Cause 2:

Cables are connected incorrectly.

Cause 3:

Loop detection and STP are enabled to remove loops on the network.

Procedure

  1. Check that cables are connected correctly. Then check whether the alarm is still reported.

    • If yes, go to step 2.
    • If not, go to step 6.

  2. Check whether the two interfaces that learn the same MAC address can be added to different VLANs according to the networking.

    • If yes, go to step 3.
    • If not, go to step 4.

  3. Modify the configuration and add the two interfaces that learn the same MAC address to different VLANs. Then check whether the alarm is still reported.

    • If yes, go to step 4.
    • If not, go to step 6.

  4. Disable loop detection and enable STP. Then check whether the alarm is still reported.

    • If yes, go to step 5.
    • If not, go to step 6.

  5. Collect alarm information and configuration information, and then contact technical support personnel.
  6. End.

Related Information

None

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Updated: 2019-05-06

Document ID: EDOC1000174085

Views: 132568

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