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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_1.3.6.1.4.1.2011.5.25.42.4.2.17 hwMstpProRootChanged

MSTP_1.3.6.1.4.1.2011.5.25.42.4.2.17 hwMstpProRootChanged

Description

The root bridge of MSTP process changed. (ProcessID=[ProcessID], InstanceID=[InstanceID], PortID=[PortID])

The root bridge in the MSTP process changed.

Attribute

Attribute Description

Alarm or Event

Event

Trap Severity

Warning

Mnemonic Code

hwMstpProRootChanged

Trap OID

1.3.6.1.4.1.2011.5.25.42.4.2.17

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
ProcessID Indicates the ID of an MSTP process.
InstanceID Indicates the instance ID.
PortID Indicates the port ID.

VB

VB OID

VB Name

VB Index

1.3.6.1.4.1.2011.5.25.42.4.1.28.1.5

hwMstpProID;hwMstpInstanceID

hwMstpProInstanceRootPort

Impact on the System

If the root bridge is not a core node, it will affect the performance of the entire network.

Possible Causes

Cause 1: A new device, which had the optimal bridge ID, was added.

Cause 2: The priorities of the devices or the domain configuration on the current network were modified.

Procedure

  • Cause 1: A new device, which had the optimal bridge ID, was added.
    1. Check whether the added physical link is required.

      • If the added physical link is necessary, go to Step 2.
      • If the added physical link is unnecessary, go to Step 3.

    2. Run the display stp [ process process-id ] [ instance instance-id ] [ interface interface-type interface-number | slot slot-id ] [ brief ] command to check whether the bridge ID is optimal on the entire network.

      • If the bridge ID is optimal on the entire network, go to Step 3.
      • If the bridge ID is not optimal on the entire network, go to Step 5.

    3. Check whether the bridge ID of the added device should be the optimal one on the entire network.

      • If the bridge ID of the added device should be the optimal one on the entire network, the alarm will be cleared.
      • If the bridge ID of the added device should not be the optimal one on the entire network, go to Step 4.

    4. Correctly configure the device according to the topology, and then check whether the alarm is cleared. If the alarm persists, go to Step 5.
    5. Collect trap, log, and configuration information, and contact technical support personnel.
  • Cause 2: The priorities of the devices or the domain configuration on the current network were modified.
    1. Run the display stp [ process process-id ] [ instance instance-id ] [ interface interface-type interface-number ] [ brief ] command to check whether the operation of changing the vectors of the instance or the domain configuration is correct. If the operation is incorrect, go to Step 2.
    2. Correctly configure the device according to the topology, and then check whether the alarm is cleared. If the alarm persists, go to Step 3.
    3. 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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