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Alarm Handling

CloudEngine 8800, 7800, 6800, and 5800 V200R002C50

This document provides the explanations, causes, and recommended actions of alarms on the product.
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ISIS_1.3.6.1.3.37.2.0.9 isisAuthenticationTypeFailure

ISIS_1.3.6.1.3.37.2.0.9 isisAuthenticationTypeFailure

Description

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

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

Attributes

Attribute

Description

Alarm or Event

Event

Trap Severity

Error

Mnemonic Code

isisAuthenticationTypeFailure

Trap OID

1.3.6.1.3.37.2.0.9

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 the authentication of the Hello packet fails, IS-IS neighbors cannot be established.

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

Possible Causes

1. Authentication was configured on the interface or process of the local end. The authentication type configured on the peer end was different from that configured on the local end.

2. Authentication was configured on the interface or process of the local end. The peer end, however, was not configured with authentication.

Procedure

  1. Check the sysInstance field in the trap to identify the ID of the IS-IS process that receives the packet, and then check the sysLevel field to identify the level of the packet. The value 1 indicates Level-1 packets; the value 2 indicates Level-2 packets; the value 3 indicates P2P Hello packets.
  2. Check the second byte of the isisPduFragment field and confirm the packet type.

    • If the second byte is 14, Hello packets are received. Go to Step 3.
    • If the second byte is 1b, LSPs are received. Go to Step 5.
    • If the second byte is 11, SNPs are received. Go to Step 6.

  3. In a Hello packet, the 10th to 15th bytes of the isisPduFragment field form the system ID of the source device that sends the packet. Run the display isis peer command on the source to check the interface that sends the packet. Run the display this command in the interface view to check whether the interface authentication mode is configured. If the interface authentication mode is configured, check whether it is consistent with the interface authentication mode of the local .

    • If so, go to Step 8.

    • If not, go to Step 4.

  4. Run the isis authentication-mode command in the interface view of the source to configure the same authentication mode as the local . The authentication mode can be simple mode, MD5, or keychain mode. Ensure that the authentication passwords on the interfaces at both ends are the same. Then, check whether the trap is cleared.

    • If so, go to Step 8.

    • If not, go to Step 7.

  5. Run the display current-configuration configuration isis command on the source to check whether the area or domain authentication mode is configured in the IS-IS process. If the area or domain authentication mode is configured, check whether it is the same as the authentication mode of the local , and ensure that the authentication passwords configured on the two ends are the same.

    • If so, go to Step 8.

    • If not, go to Step 7.

  6. 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 mode as the local , which can be the simple mode, MD5 or keychain mode. Then, check whether the trap is cleared.

    • If so, go to Step 8.

    • If not, go to Step 7.

  7. Collect trap, log, and configuration information, and contact technical support personnel technical support personnel.
  8. End.
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Updated: 2019-03-20

Document ID: EDOC1000166558

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