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Alarm Handling

S9300, S9300E, and S9300X V200R010C00

This document provides the explanations, causes, and recommended actions of alarms on the product.
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RM_1.3.6.1.4.1.2011.5.25.145.10.3 hwIpv4PrefixThresholdExceed

RM_1.3.6.1.4.1.2011.5.25.145.10.3 hwIpv4PrefixThresholdExceed

Description

RM/4/IPV4_PREFIX_THRESHOLD_EXCEED:OID [oid] The number of IPv4 prefixes exceeded the threshold. (PrefixCount=[Integer], MaxValue=[Integer])

The number of IPv4 route prefixes exceeded the alarm threshold.

Attribute

Alarm ID Alarm Severity Alarm Type

1.3.6.1.4.1.2011.5.25.145.10.3

Warning

qualityOfServiceAlarm(3)

Parameters

Name Meaning

oid

Indicates the MIB object ID of the alarm.

PrefixCount

Indicates the number of IPv4 route prefixes in the routing table.

MaxValue

Indicates the maximum number of IPv4 route prefixes supported by the device.

Impact on the System

The number of IPv4 route prefixes exceeded the alarm threshold, and services may be affected if the number of IPv4 route prefixes keeps increasing.

Possible Causes

A large number of IPv4 dynamic protocol routes (BGP or IGP routes for example), static routes, or direct routes were added to the routing table.

Procedure

  1. Run the display current-configuration command to check whether the threshold value specified in the ip prefix-limit system threshold-alarm command is too small.

    • If the threshold value is too small, go to 2.
    • If the threshold value is in a proper range, go to 3.

  2. Rerun the ip prefix-limit system threshold-alarm upper-limit upper-limit-value lower-limit lower-limit-value command to increase the value of upper-limit-value.
  3. Run the display ip routing-table statistics and display ip routing-table all-vpn-instance statistics commands to check the numbers of IPv4 public and private route prefixes and the number of routes of each protocol that are added to the routing table.

    Check whether services need these routes or whether the routes are added to the routing table due to incorrect configurations.
    • If the routes are added to the routing table due to incorrect configurations, go to 4.

    • If services need these routes, replace the license or contact technical support personnel for specification expansion.

  4. Adjust the configurations to delete unneeded routes and ensure that the number of IPv4 route prefixes falls below the lower-limit-value configured using the ip prefix-limit system threshold-alarm command, then check whether the RM_1.3.6.1.4.1.2011.5.25.145.10.4 hwIpv4PrefixThresholdExceedClear alarm is generated.

  5. Collect alarm information and configuration information, and then contact technical support personnel.
  6. End.
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Updated: 2019-08-21

Document ID: EDOC1000142054

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