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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_1.3.6.1.3.37.2.0.8 isisSequenceNumberSkip

ISIS_1.3.6.1.3.37.2.0.8 isisSequenceNumberSkip

Description

ISIS received a self-originated LSP with a greater sequence number. (isisSysInstance=[isisSysInstance], isisSysLevelIndex=[isisSysLevelIndex], isisCircIndex=[isisCircIndex], isisCircIfIndex=[isisCircIfIndex], isisPduLspId=[isisPduLspId], ifIndex=[ifIndex], IfName=[IfName], oldSeqNum=[oldSeqNum], newSeqNum=[newSeqNum])

IS-IS received a self-originated LSP of which the sequence number is greater than the local one.

Attributes

Attribute

Description

Alarm or Event

Event

Trap Severity

Critical

Mnemonic Code

isisSequenceNumberSkip

Trap OID

1.3.6.1.3.37.2.0.8

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.

isisPduLspId

LSP ID.

ifIndex

Indicates the IF index of the interface.

IfName

Indicates the name of the interface.

oldSeqNum

Indicates the value before the sequence number change.

newSeqNum

Indicates the value after the sequence number change.

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

1.3.6.1.3.37.1.10.1.1.1

isisPduLspId

isisSysInstance

Impact on the System

1. You can ignore the trap caused by the restart of the local , and services will not be affected.

2. If the trap is triggered by the incorrect configuration, routes will flap frequently.

Possible Causes

1. After the IS-IS process was restarted, IS-IS received the LSP with the greater sequence number and the same LSP ID from the neighbor.

2. The system ID of the local was the same as that of another . This caused the LSP to be updated continuously.

Procedure

  1. Run the display history-command command to check whether the reset isis all command is run on the local to restart the IS-IS process.

    • If so, it indicates that this trap message is informational only, and no action is required, go to Step 5.

    • If not, go to Step 2.

  2. Run the display isis lsdb command to continuously check whether the LSP sequence number of the local increases rapidly, that is, to check whether the actual LSP refresh period is shorter than the value configured through the timer lsp-refresh command.

    • If so, go to Step 3.

    • If not, go to Step 4.

  3. Run the display current-configuration command to check whether there is another whose system ID or virtual system ID is the same as that of the local on the network.

    • If so, go to Step 4.

    • If not, go to Step 5.

  4. (Use the undo network-entity command or the undo virtual-system command with caution.) Enter the IS-IS view of the local or another whose system ID is the same as the system ID or the virtual system ID of the local . Then run the undo network-entity command or the undo virtual-system command to delete the repeated system ID or virtual system ID and the network-entity command or the undo virtual-system command to configure a different system ID or virtual system ID for the . Check whether the trap is cleared.

    • If so, go to Step 6.

    • If not, go to Step 5.

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

Document ID: EDOC1100074754

Views: 17485

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