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Alarm Handling

CloudEngine 8800, 7800, 6800, and 5800 V200R002C50

This document provides the explanations, causes, and recommended actions of alarms on the product.
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MSTP_1.3.6.1.4.1.2011.5.25.42.4.2.5 hwMstpiPortBpduGuarded

MSTP_1.3.6.1.4.1.2011.5.25.42.4.2.5 hwMstpiPortBpduGuarded

Description

The edge port with BPDU protection enabled will be shut down, because it received a BPDU packet that may be used to initiate an attack. (InstanceID=[InstanceID], PortIndex=[PortIndex], IfIndex=[IfIndex], PortName=[PortName])

The edge port that has BPDU protection enabled received BPDUs and was shut down.

Attribute

Attribute Description

Alarm or Event

Event

Trap Severity

Warning

Mnemonic Code

hwMstpiPortBpduGuarded

Trap OID

1.3.6.1.4.1.2011.5.25.42.4.2.5

Alarm ID

This is an event trap and does not involve alarm ID.

Alarm Type

This is an event trap and does not involve alarm type.

Raise or Clear

This is an event trap and does not involve alarm generation or clearance.

Match trap

This is an event trap and does not involve the matching trap.

Parameters

Parameter Description
InstanceID Indicates the instance ID.
PortIndex Indicates the port ID.
IfIndex Indicates the interface index.
PortName Indicates the port name.

VB

VB OID

VB Name

VB Index

1.3.6.1.4.1.2011.5.25.42.4.1.20.1.1

hwMstpInstanceID

hwMstpiPortIndex

1.3.6.1.2.1.31.1.1.1.1

hwMstpiPortIndex

ifName

Impact on the System

The user network connected to this port will be broken down.

Possible Causes

The edge port received BPDUs, and BPDU protection was enabled globally.

Procedure

  • The edge port received BPDUs, and BPDU protection was enabled globally.
    1. Check whether the interface is directly connected to a user terminal and can be specified as an edge port.

      • If the interface is directly connected to a user terminal and therefore can be specified as an edge port, go to Step 2.
      • If the interface is indirectly connected to a user terminal and therefore cannot be specified as an edge port, go to Step 3.

    2. Locate the source of the BPDUs on the interface and check whether the malicious attack exists.

      • If the malicious attack exists, go to Step 4.
      • If the malicious attack does not exist, go to Step 3.

    3. Run the undo stp edged-port command and the undo shutdown command in the interface view to delete the configuration of the edge port and restart the interface. Then, check whether the alarm is cleared. If the alarm persists, go to Step 4.
    4. Collect trap, log, and configuration information, and contact technical support personnel.
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Updated: 2019-03-20

Document ID: EDOC1000166558

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