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Alarm Handling

AR100, AR120, AR160, AR1200, AR2200, AR3200, and AR3600 V300R003

This document provides the trap description, attributes, parameters, impact on the system, possible causes, procedures, and references. This document provides a complete set of traps, through which intended readers are kept of the running status of the device so as to locate faults.
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ISIS_1.3.6.1.3.37.2.0.15 isisOrigLSPBuffSizeMismatch

ISIS_1.3.6.1.3.37.2.0.15 isisOrigLSPBuffSizeMismatch

Description

ISIS/3/LSPMTU_MISMATCH: OID [oid] The size of the local buffer for originating IS-IS LSPs is smaller than the size of the received LSP. (sysInstance=[integer], sysInstanceofLevel=[integer], sysLevel=[integer], sysInstanceofCircIfIndex=[integer], circIndex=[integer], ifIndex=[integer], circIfIndex=[integer], pduLspId=[opaque], pduOriginatingBufferSize=[integer], ifName=[string])

The size of the local buffer for originating LSPs is smaller than the size of the received LSP.

Attribute

Alarm ID Alarm Severity Alarm Type

1.3.6.1.3.37.2.0.15

Minor

environmentalAlarm(6)

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

sysInstanceofCircIfIndex

Indicates the ID of the IS-IS process.

circIndex

Indicates the index of the interface.

ifIndex

Indicates the index of the interface.

circIfIndex

Indicates the IF index of the interface.

pduLspId

Indicates the ID of the LSP.

pduOriginatingBufferSize

Indicates the buffer size for originating LSPs.

ifName

Indicates the name of the interface.

Impact on the System

Routes cannot be learnt, and traffic forwarding is affected.

Possible Causes

The size of the LSPs originated from IS-IS on the source router is larger than the size of the local buffer for originating LSPs.

Procedure

  1. Run the display current-configuration configuration isis command on the local device to check the size of LSPs. If the command output does not contain the LSP size, the default LSP size is used. Run the display default-parameter isis command to check the LSP-Receive-Length field.
  2. Find the source router from which the LSPs are originated based on the lsp-id field value in the trap output. Run the display current-configuration configuration isis command to check the size of the LSPs on the source router. If the command output does not contain the LSP size, the default LSP size is used. Run the display default-parameter isis command to check the LSP-Originate-Length field.
  3. Check whether the value obtained in Step 1 is smaller than that obtained in Step 2.

    • If so, go to Step 4.

    • If not, go to Step 7.

  4. Perform the following steps as required:

    • If the size of the local receiving buffer for LSPs is a default value, go to Step 5.
    • If the size of LSPs originated from the source router is a default value, go to Step 6.

  5. Run the lsp-length originate command in the IS-IS process of the source router to modify the size of LSPs, and ensure that the size is smaller than or equal to the size of the local receiving buffer. Then, check whether the trap is cleared.

    • If so, go to Step 8.

    • If not, go to Step 7.

  6. Run the lsp-length receive command in the IS-IS process to modify the size of the LSPs that can be received by the local router, and ensure that the size is greater than or equal to the size of LSPs sent from the source router. Then, check whether the trap is cleared.

    • If so, go to Step 8.

    • If not, go to Step 7.

  7. Collect the trap information, log information, and configuration of the router, and contact technical support personnel.
  8. End.

Related Information

None.

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Updated: 2019-03-06

Document ID: EDOC1100041475

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