ARP_1.3.6.1.4.1.2011.5.25.123.2.7 hwEthernetARPMACIPConflict

Trap Buffer Description

MAC and IP address conflict. (Conflict interface=[LogicIfName], Conflict MAC address=[ConflictMAC], Conflict IP address=[ConflictIP], Received packet's destination MAC address=[DstMAC], Received packet's destination IP address=[DstIP], Received packet's VLAN=[Vlan], Received packet's CE-VLAN=[Cevlan], Input interface=[PhyIfName])

The source IP and MAC addresses of ARP packets received by the interface were the same as those of the interface.

Trap Attributes

Trap Attribute	Description
Alarm or Event	Alarm
Trap Severity	Critical
Mnemonic Code	hwEthernetARPMACIPConflict
Trap OID	1.3.6.1.4.1.2011.5.25.123.2.7
MIB	HUAWEI-ETHARP-MIB
Alarm ID	0x08590002
Alarm Name	hwEthernetARPMACIPConflict
Alarm Type	environmentalAlarm
Raise or Clear	Raise
Match trap	ARP_1.3.6.1.4.1.2011.5.25.123.2.8 hwEthernetARPMACIPConflictResolved

Trap Buffer Parameters

Parameter	Description
LogicIfName	Name of the conflict interface where the conflict is detected
ConflictMAC	Source MAC addresses of the received ARP packets
ConflictIP	Source IP addresses of the received ARP packets
DstMAC	Destination MAC addresses of the received ARP packets
DstIP	Destination IP addresses of the received ARP packets
Vlan	Outer vlan tag of the received ARP packets
Cevlan	Inner vlan tag of the received ARP packets
PhyIfName	Interface that receives ARP packets

VB Parameters

VB OID	VB Name	VB Index
1.3.6.1.4.1.2011.5.25.123.1.28.2	hwEthernetARPIPConflictLocalInterfaceName	-
1.3.6.1.4.1.2011.5.25.123.1.28.7	hwEthernetARPIPConflictReceiveMAC	-
1.3.6.1.4.1.2011.5.25.123.1.28.1	hwEthernetARPIPConflictIPAddress	-
1.3.6.1.4.1.2011.5.25.123.1.28.12	hwEthernetARPReceiveDstMAC	-
1.3.6.1.4.1.2011.5.25.123.1.28.11	hwEthernetARPReceiveDstIPAddr	-
1.3.6.1.4.1.2011.5.25.123.1.28.8	hwEthernetARPIPConflictReceiveVLAN	-
1.3.6.1.4.1.2011.5.25.123.1.28.9	hwEthernetARPIPConflictReceiveCEVLAN	-
1.3.6.1.4.1.2011.5.25.123.1.28.6	hwEthernetARPIPConflictReceiveInterfaceName	-

Impact on the System

If the trap is generated, there are loops on the network. As a result, user's services may be interrupted.

Possible Causes

The source IP and MAC addresses of ARP packets received by the interface were the same as those of the interface.

Procedure

1. Check the network topology to determine whether there are loops on the network.

If a loop is detected go to Step 2.
If no loop is detected, go to Step 3.

2. Remove loops and check whether the trap is cleared.

If the trap is cleared, go to Step 4.
If the trap persists, go to Step 3.

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

4. End.