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Alarm Handling

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document provides the explanations, causes, and recommended actions of alarms on the product.
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MSTP_1.3.6.1.4.1.2011.5.25.42.4.2.7 hwMstpiEdgePortChanged

MSTP_1.3.6.1.4.1.2011.5.25.42.4.2.7 hwMstpiEdgePortChanged

Description

After the edge port receives a BPDU packet, the port is no longer an edge port. (InstanceID=[InstanceID], PortIndex=[PortIndex], EdgePortEnableState=[EdgePortEnableState], IfIndex=[IfIndex], PortName=[PortName], PwName=[PwName])

The edge port lost the attributes of an edge port after receiving BPDUs.

Attribute

Attribute Description

Alarm or Event

Event

Trap Severity

Emergency

Mnemonic Code

hwMstpiEdgePortChanged

Trap OID

1.3.6.1.4.1.2011.5.25.42.4.2.7

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.
EdgePortEnableState Indicates whether BPDU-guard is enabled on the edge port.
PortName Indicates the port name.
PwName Indicates the pw name.

VB

VB OID

VB Name

VB Index

1.3.6.1.4.1.2011.5.25.42.4.1.20.1.9

hwMstpInstanceID

hwMstpiStpPortEdgeport

1.3.6.1.2.1.31.1.1.1.1

hwMstpiPortIndex

ifName

Impact on the System

The network topology may be changed.

Possible Causes

The edge port received BPDUs.

Procedure

  • The edge port received BPDUs.
    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: 2019-04-02

Document ID: EDOC1100074754

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