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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. hwIsisL2ImportRouteThresholdReach

ISIS_1. hwIsisL2ImportRouteThresholdReach


ISIS/4/L2_REDIST_THRESHOLD_REACH:OID [oid] The number of level-2 imported routes has reached the upper threshold value.(sysInstance=[integer], sysProtocol=[integer], sysMTIndex=[integer], sysMaxLimit=[integer], sysUpperThresholdValue=[integer], sysLowerThresholdValue=[integer], sysTotalRedist=[integer])

The number of Level-2 imported routes reached the configured upper threshold.


Alarm ID Alarm Severity Alarm Type




Name Meaning


Indicates the MIB object ID of the alarm.


ID of an IS-IS process


Protocol types
  • 1: IPv4
  • 2: IPv4


Multi-topology ID


Maximum number of imported routes that are allowed to be advertised


Alarm upper threshold


Alarm lower threshold


Number of imported routes

Impact on the System

Some of the imported routes cannot be advertised.

Possible Causes

The number of imported routes reached the configured threshold.


  1. Run the display current-configuration command to view the threshold of routes that can be imported.

    • If the configured threshold is small, run the import-route limit command to change the threshold to a proper value.

    • If the configured threshold is proper, go to Step 2.

  2. Check whether the routes are correctly imported in the IS-IS process. If external routes are imported incorrectly, run the undo import-route command in the IS-IS view to delete the routes that are imported incorrectly. Then check whether the alarm is cleared.

    • If the alarm persists, go to Step 3.

    • If the alarm is cleared, go to Step 4.

  3. Collect alarm information and configuration information, and then contact technical support personnel.
  4. End.

Related Information


Updated: 2019-03-06

Document ID: EDOC1100041475

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