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DCS-3950 series Ethernet switch manual

<vlan-id>‘ command will disable the IGMP

Snooping function of the multicast vlan.

ip igmp snooping

no ip igmp snooping

Start the IGMP Snooping function. The ‘no

ip igmp snooping‘ command will disable the

IGMP Snooping function globally.

12.2.2 Multicast VLAN Configuration Command List

12.2.2.1 multicast-vlan

Command: multicast-vlan

no multicast-vlan

Function: Enable multicast VLAN function on a VLAN; the ‘no’ form of this command

disables the multicast VLAN function.

Parameter: None

Command mode: VLAN configuration mode

Default: Multicast VLAN function not enabled by default

Usage Guide: The multicast VLAN function can not be enabled on private VLAN. To

disable the multicast VLAN function of the VLAN, configuration of VLANs associated with

the multicast VLAN should be deleted. Note that the default vlan can not be configured

with this command and only one multicast vlan is allowed on a switch

Examples:

Switch(config)#vlan 2

Switch (Config-Vlan2)# multicast vlan

12.2.2.2 multicast-vlan association <vlan-list>

Command: multicast-vlan association <vlan-list>

no multicast-vlan association <vlan-list>

Function: Associate several VLANs with a multicast VLAN; the ‘no’ form of this command

cancels the association relations.

Parameter: <vlan-list> the VLAN ID list associated with multicast VLAN. Each VLAN can

only be associated with one multicast VLAN and the association will only succeed when

every VLAN listed in the VLAN ID table exists.

Command mode: VLAN Mode

Default: The multicast VLAN is not associated with any VLAN by default

Usage Guide: After a VLAN is associated with the multicast VLAN, when there comes the

multicast order in the port of this VLAN, then the multicast data will be sent from the

multicast VLAN to this port, so to reduce the data traffic. The VLAN associated with the

multicast VLAN should not be a Private VLAN. A VLAN can only be associated with

another VLAN after the multicast VLAN is enabled. Only one multicast VLAN can be

enabled on a switch.

Examples:

Digitalchina Networks DCS-3950 series User Manual

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