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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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ISIS_1.3.6.1.3.37.2.0.10 isisAuthenticationFailure

ISIS_1.3.6.1.3.37.2.0.10 isisAuthenticationFailure

Description

The authentication password of received PDU is different from local configuration. (isisSysInstance=[isisSysInstance], isisSysLevelIndex=[isisSysLevelIndex], isisCircIndex=[isisCircIndex], isisCircIfIndex=[isisCircIfIndex], isisPduFragment=[isisPduFragment], ifIndex=[ifIndex], IfName=[IfName])

The authentication password of a received PDU was different from the local one.

Attributes

Attribute

Description

Alarm or Event

Event

Trap Severity

Error

Mnemonic Code

isisAuthenticationFailure

Trap OID

1.3.6.1.3.37.2.0.10

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

isisSysInstance

Indicates the ID of the IS-IS process.

isisSysLevelIndex

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

  • 2: Level-2

isisCircIndex

Indicates the index of the interface.

isisCircIfIndex

Indicates the index of the interface.

isisPduFragment

Indicates the fragment of 64-byte PDU header.

ifIndex

Indicates the IF index of the interface.

IfName

Indicates the name of the interface.

VB

VB OID

VB Name

VB Index

1.3.6.1.3.37.1.1.1.1.1

isisSysInstance

isisSysInstance

1.3.6.1.3.37.1.2.1.1.1

isisSysLevelIndex

isisSysInstance

isisSysLevelIndex

1.3.6.1.3.37.1.3.1.1.2

isisCircIfIndex

isisSysInstance

isisCircIndex

1.3.6.1.3.37.1.10.1.1.2

isisPduFragment

isisSysInstance

Impact on the System

1. If Hello packet authentication fails, IS-IS neighbors cannot be established.

2. If LSP or SNP packet authentication fails, LSDBs cannot be synchronized; however, IS-IS neighbors can be established.

Possible Causes

Authentication was configured on the interface or process of the local end. The authentication types configured on both ends were the same, whereas the authentication passwords were different.

Procedure

  1. Through the parameter in the trap, check the ID of the IS-IS process that receives the packet and check the level that the packet belongs to. The value 1 indicates Level-1 packets; the value 2 indicates Level-2 packets; the value 3 indicates P2P Hello packets. Based on the IS-IS packet format defined in ISO10589, search for the if-index field (in decimal) in the trap and convert the decimal value into a hexadecimal value. Then, find the pdu-fragment field in the trap and fetch the system ID of the source that sends the packet and packet type.

    • If the type of the packet is Hello, go to Step 2.
    • If the type of the packet is LSP or SNP, go to Step 4.
    Table 32-3 Methods of searching for system IDs and types of IS-IS packets

    Searching for the Packet Type

    Searching for the System ID

    Hello: the 5th byte in the pdu-fragment field being 0f, 10, or 11

    The system ID is continuous 6 bytes after the 10th byte in the pdu-fragment field

    LSP: the 5th byte in the pdu-fragment field being 12 or 14

    The system ID is continuous 6 bytes after the 13th byte in the pdu-fragment field

    SNP: the 5th byte in the pdu-fragment field being 18, 19, 1A, or 1B

    The system ID is continuous 6 bytes after the 11th byte in the pdu-fragment field

  2. Run the display isis peer command on the source to check the interface that sends the packet. Enter the interface view and run the display this command to check the password used for authentication is the same as that configured on the local .

    • If so, go to Step 6.

    • If not, go to Step 3.

  3. Run the isis authentication-mode command in the interface view of the source to configure the same authentication password as the local . Then, check whether the trap is cleared.

    • If so, go to Step 7.

    • If not, go to Step 6.

  4. Run the display current-configuration configuration isis command on the source to check whether the IS-IS process is configured with the same area authentication password or domain authentication password as the local .

    • If so, go to Step 6.

    • If not, go to Step 5.

  5. Run the area-authentication-mode (for Level-1 packets) command or the domain-authentication-mode (for Level-2 packets) command in the IS-IS view of the source to configure the same authentication password as the local . Then, check whether the trap is cleared.

    • If so, go to Step 7.

    • If not, go to Step 6.

  6. Collect the trap information, log information, and configuration of the , and contact technical support personnel technical support personnel.
  7. End.
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Updated: 2019-04-02

Document ID: EDOC1100074754

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