cfm trigger clear-arp vlan

Function

The cfm trigger clear-arp vlan command clears an ARP entry corresponding to a VLANIF interface.

The undo cfm trigger clear-arp vlan command cancels the configuration.

By default, an interface is disabled from clearing an ARP entry.

Format

cfm md md-name ma ma-name trigger clear-arp vlan vlan-id

undo cfm md md-name ma ma-name trigger clear-arp vlan vlan-id

Parameters

Parameter	Description	Value
md md-name	Specifies the name of an MD in an MA.	The value is a string of 1 to 43 case-sensitive characters without spaces, hyphens (-), and question marks (?).
ma ma-name	Specifies the name of an MA.	The value is a string of 1 to 43 characters without spaces, hyphens (-), and question marks (?). The total length of the names of the MA and MD must be within 44 characters.
vlan vlan-id	Specifies the VLAN ID in an ARP entry.	The value is an integer that ranges from 1 to 4094.

Views

Ethernet interface view, GE interface view, XGE interface view, 25GE interface view, 40GE interface view, 100GE interface view, MultiGE interface view, Eth-Trunk interface view, port group view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

When detecting a fault, the CM module notifies the OAM management module of the fault. The OAM management module searches the CM fault relationship table based on the interface number and VLAN ID, and then clears the ARP entry that corresponds to the VLANIF interface.

Precautions

Before associating Ethernet CFM with an interface, you must create an outward-facing MEP in the specified MA and ensure that the MEP is on the interface.

Prerequisites

CFM has been enabled globally using the cfm enable (system view) command.

Example

# Enable GigabitEthernet0/0/1 to clear an ARP entry matching VLANIF 10 after receiving a fault notification.

<HUAWEI> system-view
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] cfm md md1 ma ma1 trigger clear-arp vlan 10