DHCPSNP_1.3.6.1.4.1.2011.5.25.112.2.22 hwBdUntrustedReplyPktAlarm

Trap Buffer Description

The number of the discarded DHCP reply packets on the untrusted interface of the bridge domain exceeded the threshold. (BridgeDomain=[BdIndex], DiscardedNumber=[DiscardPktAccount])

The number of DHCP reply packets discarded on an untrusted interface exceeded the configured threshold.

Trap Attributes

Trap Attribute	Description
Alarm or Event	Event
Trap Severity	Warning
Mnemonic Code	BD_REPLYTRAP
Trap OID	1.3.6.1.4.1.2011.5.25.112.2.22
MIB	HUAWEI-DHCP-SNOOPING-MIB
Alarm ID	This is an event trap and does not involve alarm ID.
Alarm Name	This is an event trap and does not involve alarm name.
Alarm Type	This is an event trap and does not involve alarm type.
Raise or Clear	This is an event trap and does not involve alarm generation or clearance.
Match trap	-

Trap Buffer Parameters

Parameter	Description
BdIndex	Bridge domain name.
DiscardPktAccount	Number of discarded DHCP reply packets.

VB Parameters

VB OID	VB Name	VB Index
1.3.6.1.4.1.2011.5.25.112.1.25.1.6	hwBdUntrustedReplyPktNum	hwDhcpSnpBdIndex

Impact on the System

This log has no adverse impact on the system, because trusted interfaces discard all DHCP reply packets from invalid DHCP servers.

Possible Causes

The number of DHCP reply packets discarded on an untrusted interface exceeded the configured threshold.

Procedure

1. Run the display dhcp snooping { interface interface-type interface-number | vlan vlan-id [ interface interface-type interface-number ] } command to check whether the interface is trusted.

If the interface is trusted, no action is required.
If the interface is untrusted, check whether the alarm threshold for the number of reply packets received by the untrusted interface is proper, whether the interface is attacked, and whether the alarm threshold needs to be adjusted.

2. Collect log and configuration information, and contact Huawei technical support personnel.