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Alarm Handling

S9300, S9300E, and S9300X V200R010C00

This document provides the explanations, causes, and recommended actions of alarms on the product.
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MSTP_1.3.6.1.4.1.2011.5.25.42.4.2.23 hwMstpProNewPortLoopGuarded

MSTP_1.3.6.1.4.1.2011.5.25.42.4.2.23 hwMstpProNewPortLoopGuarded

Description

MSTP/4/PROLGEXP:OID [oid] The MSTP process's instance's LOOP-Protection port did not receive BPDU packets in prescriptive time. (ProcessID=[INTEGER], InstanceID=[INTEGER], PortID1=[INTEGER], PortID2=[INTEGER], PortID3=[INTEGER], PortID4=[INTEGER], PortIDFlag=[INTEGER], IfIndex=[INTEGER], PortState=[INTEGER], PortName=[STRING])

A port of MSTP process enabled with loop protection failed to receive BPDUs within a specified period, and was set to be in the Discarding state.

Attribute

Alarm ID Alarm Severity Alarm Type
1.3.6.1.4.1.2011.5.25.42.4.2.23 Warning communicationsAlarm(2)

Parameters

Name Meaning

oid

Indicates the MIB object ID of the alarm.

ProcessID

Indicates the MSTP process ID

InstanceID

Indicates the instance ID.

PortID1

Indicates ID 1 of the port in the MSTP process.

PortID2

Indicates ID 2 of the port in the MSTP process.

PortID3

Indicates ID 3 of the port in the MSTP process.

PortID4

Indicates ID 4 of the port in the MSTP process.

PortIDFlag

Indicates the port flag.

IfIndex

Indicates the port index.

PortState

Indicates the port state.

PortName

Indicates the port name.

Impact on the System

The interface will not forward data.

Possible Causes

1.

The peer switch did not send the BPDUs to the local switch within the specified period. The possible cause was that the spanning tree function was disabled on the peer switch.

2.

The links connected to the peer were congested. Check whether the traffic was normal.

Procedure

  1. Run the display stp [ process process-id ] [ instance instance-id ] [ interface interface-type interface-number | slot slot-id ] [ brief ] command to check whether STP is disabled on the interfaces that are directly connected.

    • If so, go to Step 3.

    • If the alarm is not cleared, go to Step 2.

  2. Run the display this interface command in the interface view to check the percentage of the rate at which the interface receives packets to the total bandwidth and then determine whether congestion occurs.

    • If so, go to Step 4.

    • If not, go to Step 5.

  3. Run the stp enable command in the interface view to enable STP. Then, check whether the alarm is cleared.

    • If the alarm is cleared, go to Step 6.

    • If the alarm is not cleared, go to Step 2.

  4. Repair the physical link and then check whether the alarm is cleared.

    • If the alarm is cleared, go to Step 6.

    • If not, go to Step 5.

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

Related Information

None.

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Updated: 2019-08-21

Document ID: EDOC1000142054

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