igmp-snooping proxy-uplink-port

Function

The igmp-snooping proxy-uplink-port command configures an IGMP snooping proxy uplink interface. No IGMP Query message can be sent to this interface.

The undo igmp-snooping proxy-uplink-port command deletes an IGMP snooping proxy uplink interface.

By default, no IGMP snooping proxy uplink interface exists in a VLAN.

Format

igmp-snooping proxy-uplink-port vlan vlan-id

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

Parameters

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

Views

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

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After IGMP snooping proxy or IGMP snooping querier is enabled in a VLAN, the switch periodically broadcasts IGMP Query messages to all interfaces in the VLAN, including router ports in the VLAN. This may result in IGMP querier reelection. To prevent IGMP querier reelection, run the igmp-snooping proxy-uplink-port command on the router port to disable the switch from sending IGMP Query messages to the router port.

Prerequisites

IGMP snooping has been enabled globally using the igmp-snooping enable (system view) command.

Precautions

Only one IGMP snooping proxy uplink interface can be configured in a VLAN.

The igmp-snooping proxy-uplink-port command is used only on an uplink interface. Therefore, the specified VLAN cannot be a user VLAN mapping the multicast VLAN.

Example

# Configure GE0/0/1 in VLAN 10 as an IGMP snooping proxy uplink interface.

<HUAWEI> system-view
[HUAWEI] igmp-snooping enable
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] igmp-snooping proxy-uplink-port vlan 10