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Alarm Handling

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R010

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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OSPF_1.3.6.1.2.1.14.16.2.14 ospfLsdbOverflow

OSPF_1.3.6.1.2.1.14.16.2.14 ospfLsdbOverflow

Description

OSPF/3/OVERFLOW:OID [oid]: The LSDB overflows. (ProcessId=[process-id], RouterId=[router-id], ExtLsdbLimit=[lsa-limit], InstanceName=[instance-name])

The Overflow feature restricts only the total number of Type 5 and Type 7 LSAs. The total number of type 5 LSAs and type 7 LSAs in the LSDB of the router reached or exceeded the maximum value defined by ospfExtLsdbLimit. The possible cause was that the number of routes imported by OSPF exceeded the set threshold. This trap was generated when the number of OSPF external routes in the network reached or exceeded the configured overflow limit.

Attribute

Alarm ID Alarm Severity Alarm Type

1.3.6.1.2.1.14.16.2.14

Minor

environmentalAlarm (6)

Parameters

Name Meaning

oid

Indicates the MIB object ID of the alarm.

ProcessId

Indicates the process ID.

RouterId

Indicates the ID of the router that generates the trap message.

ExtLsdbLimit

Indicates the maximum number of type 5 LSAs and type 7 LSAs.

InstanceName

Indicates the instance name.

Impact on the System

The number of type 5 and type 7 LSAs exceeds the limit allowed by overflow. The excessive type 5 and type 7 LSAs are discarded.

Possible Causes

Too many type 5 and type 7 LSAs existed in the LSDB.

Procedure

  1. Run the display ospf lsdb brief command to check whether the total number of type 5 LSAs and type 7 LSAs exceeds the overflow limit.

    • If so, go to Step 2.

    • If not, go to Step 3.

  2. Perform the following operations as required:

    • If it is allowed to adjust the maximum number of external LSAs in the OSPF LSDB, run the lsdb-overflow-limit command to reconfigure the maximum value. The set maximum value should be consistent on the entire network. Wait for a period of time and check whether the trap is cleared. If the trap is cleared, go to Step 4. If not, go to Step 3.

    • If it is not allowed to adjust the maximum number of external LSAs in the OSPF LSDB, go to Step 3.

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

Related Information

None

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Updated: 2019-05-07

Document ID: EDOC1100034065

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