mld-snooping proxy-uplink-port

Function

The mld-snooping proxy-uplink-port command configures an interface as an MLD snooping proxy uplink interface, so that MLD Query messages are not sent to this interface.

The undo mld-snooping proxy-uplink-port command cancels an interface as an MLD snooping proxy uplink interface.

By default, no MLD snooping proxy uplink interface is configured in a VLAN.

Format

mld-snooping proxy-uplink-port vlan vlan-id

undo mld-snooping proxy-uplink-port vlan vlan-id

Parameters

Parameter	Description	Value
vlan vlan-id	Specifies a VLAN ID.	The value is an integer ranging from 1 to 4094.

Parameter

Description

Value

vlan vlan-id

Specifies a VLAN ID.

The value is an integer ranging from 1 to 4094.

Views

Layer 2 100GE interface view, Layer 2 10GE interface view, 25GE-L2 view, 400GE-L2 view, Layer 2 40GE interface view, Layer 2 50GE interface view, Eth-Trunk interface view, Layer 2 GE interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
l2mc	write

Usage Guidelines

Usage Scenario

After the MLD snooping proxy or querier function is enabled on a Layer 2 device, the Layer 2 device broadcasts MLD Query messages to all interfaces (including router interfaces) in a VLAN periodically, which may trigger MLD querier reelection. To prevent MLD querier reelection, run the mld-snooping proxy-uplink-port command to configure an interface as an MLD snooping proxy uplink interface, so that MLD Query messages are not sent to this interface.

Prerequisites

MLD snooping proxy has been enabled for the VLAN using the mld-snooping proxy command, or the MLD snooping querier function has been enabled using the mld-snooping querier enable command.

Precautions

Only one MLD snooping proxy unlink interface can be configured in a VLAN.

The mld-snooping proxy-uplink-port command is only used on an uplink interface; therefore, the specified VLAN cannot be a user VLAN of a multicast VLAN.

Example

# Configure GE 0/1/1 in VLAN 10 as an MLD snooping proxy uplink interface.

<HUAWEI> system-view
[~HUAWEI] mld-snooping enable
[*HUAWEI] interface GigabitEthernet0/1/1
[*HUAWEI-GigabitEthernet0/1/1] portswitch
[*HUAWEI-GigabitEthernet0/1/1] mld-snooping proxy-uplink-port vlan 10