Binding User VLANs to a Multicast VLAN

Context

Multicast VLAN replication is implemented based on the multicast VLAN, which aggregates multicast flows from the network side. It allows the device to copy and deliver multicast packets in user VLANs. When you configure multicast VLAN replication based on user VLANs, you must enable Layer 2 multicast snooping in the multicast VLAN.

Procedure

Run system-view
The system view is displayed.
Run igmp-snooping enable
IGMP snooping is enabled globally.
Run vlan vlan-id
A VLAN is created, and the VLAN view is displayed.
Run igmp-snooping enable
IGMP snooping is enabled in the VLAN.
(Optional) Run igmp-snooping querier enable
The IGMP snooping querier function is enabled in the VLAN.

This configuration is recommended in the multicast VLAN view. If the upstream device is the gateway with IGMP enabled, you do not need to perform step 5.
Run multicast-vlan enable
Multicast VLAN is enabled and the current VLAN is configured as a multicast VLAN.
Run multicast-vlan user-vlan { vlan-id1 [ to vlan-id2 ] } &<1-10>
The binding between a multicast VLAN and user VLANs is configured and user VLANs are bound to a multicast VLAN.

When you configure the binding between a multicast VLAN and user VLANs, a user VLAN can be bound to only one multicast VLAN.
(Optional) Run multicast-vlan send-query prune-source-port
Query messages received in the multicast VLAN are prevented from being sent back to the upstream interface through user VLANs.

By default, if an upstream interface belongs to a multicast VLAN and a user VLAN, Query messages sent to the multicast VLAN can be sent back from the upstream interface through the user VLAN. To prevent Query messages from being sent back to the upstream device, run this command in the multicast VLAN.