RM_1.3.6.1.4.1.2011.5.25.145.10.3 hwIpv4PrefixThresholdExceed

Trap Buffer Description

The number of IPv4 prefixes exceeded the threshold. (PrefixCount=[PrefixCount], MaxValue=[MaxValue], ThresholdLowerLimit=[ThresholdLowerLimit], ThresholdUpperLimit=[ThresholdUpperLimit])

The number of IPv4 route prefixes exceeded the alarm threshold.

Trap Attributes

Trap Attribute	Description
Alarm or Event	Alarm
Trap Severity	Warning
Mnemonic Code	hwIpv4PrefixThresholdExceed
Trap OID	1.3.6.1.4.1.2011.5.25.145.10.3
MIB	HUAWEI-RM-EXT-MIB
Alarm ID	0x08390006
Alarm Name	hwIpv4PrefixThresholdExceed
Alarm Type	qualityOfServiceAlarm
Raise or Clear	Raise
Match trap	RM_1.3.6.1.4.1.2011.5.25.145.10.4 hwIpv4PrefixThresholdExceedClear

Trap Buffer Parameters

Parameter	Description
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.
ThresholdLowerLimit	Indicates the lower threshold of IPv4 route prefixes.
ThresholdUpperLimit	Indicates the upper threshold of IPv4 route prefixes.

VB Parameters

VB OID	VB Name	VB Index
1.3.6.1.4.1.2011.5.25.145.8.1	hwCurIpv4PrefixNum	-
1.3.6.1.4.1.2011.5.25.145.8.2	hwIpv4PrefixLimitValue	-
1.3.6.1.4.1.2011.5.25.145.8.3	hwIpv4PrefixLowerLimitValue	-
1.3.6.1.4.1.2011.5.25.145.8.4	hwIpv4PrefixUpperLimitValue	-

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

The number of IPv4 prefixes exceeded the threshold of 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 step 2. - If the threshold value is in a proper range, go to step 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 step 4. - If services need these routes, go to step 5. 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. - If the RM_1.3.6.1.4.1.2011.5.25.145.10.4 hwIpv4PrefixThresholdExceedClear alarm is not generated, go to step 5. - If theRM_1.3.6.1.4.1.2011.5.25.145.10.4 hwIpv4PrefixThresholdExceedClear alarm is generated, go to step 6. 5. Collect alarm information and configuration information, and then contact technical support personnel. 6. End.