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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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ISIS_1.3.6.1.3.37.2.0.2 isisManualAddressDrops

ISIS_1.3.6.1.3.37.2.0.2 isisManualAddressDrops

Description

ISIS/2/MANAREA_DROP:OID [oid] Some area addresses were discarded because the number of area addresses exceeded three. (sysInstance=[process-id], sysInstanceofLevel=[process-id], sysLevel=[level], sysInstanceofManAreaAddrExistState=[process-id], manAreaAddr=[area-address], manAreaAddrExistState=[area-address-state])

On the Level-1-2 switch, IS-IS leaked the Level-1 area addresses to the Level-2 area. As a result, the number of Level-2 area addresses was more than 3 and IS-IS selected the top three smallest area addresses as the Level-2 area addresses. This may lead to the loss of Level-2 area addresses of the local IS-IS system.

Attribute

Alarm ID Alarm Severity Alarm Type

1.3.6.1.3.37.2.0.2

Major

other(1)

Parameters

Name Meaning

oid

Indicates the MIB object ID of the alarm.

sysInstance

Indicates the ID of the IS-IS process.

sysInstanceofLevel

Indicates the ID of the IS-IS process.

sysLevel

Indicates the IS-IS level:
  • 1: Level-1

  • 2: Level-2

sysInstanceofManAreaAddrExistState

Indicates the ID of the IS-IS process.

manAreaAddr

Indicates the area address. If the value is 0, it indicates the parameter is not used.

manAreaAddrExistState

Indicates the area address state:
  • 1: active

  • 2: notInService

  • 3: notReady

  • 4: createAndGo

  • 5: createAndWait

  • 6: destroy

Impact on the System

The Level-2 area addresses of the local IS-IS system may be lost.

Possible Causes

On the Level-1-2 switch, IS-IS leaked the Level-1 area addresses to the Level-2 area. When the number of Level-2 area addresses exceeded 3, IS-IS selected top three smallest area addresses. Then, the local area addresses in the Level-2 area may be lost.

Procedure

  1. Run the display isis lsdb level-1 verbose command to check the detailed information about the Level-1 IS-IS LSDB, and the AREA ADDR field carried in the LSP with the LSP fragment ID being 0. Then, count the number of different Level-1 area addresses to check whether the number is larger than three.

    • If so, go to step 2.
    • If not, go to step 3.

  2. Run the display isis lsdb { level-1 | level-2 } verbose command to check whether the value of the Level-1 Area Address field is the same as the value of the Level-2 Area Address field in the LSP with the fragment number being 0 on the local switch.
  3. Collect the trap information, log information, and configuration of the switch, and contact technical support personnel.
  4. End.

Related Information

None

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Updated: 2019-08-21

Document ID: EDOC1000142054

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