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Grandstream Networks GWN780 Series User Manual page 32

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IGMP Snooping Multicast Port
Once the Multicast Policy is created, the user is able to apply this policy on a port.
MLD Snooping
MLD Snooping Global Settings
As an IPv6 Layer 2 multicast protocol, MLD Snooping maintains the outgoing port information of multicast packets by
listening to the multicast protocol packets sent between Layer 3 multicast devices and user hosts, so as to manage and
control multicast data . Forwarding of packets at the data link layer. When an MLD protocol packet transmitted between a
host and an upstream Layer 3 device passes through a Layer 2 device, MLD Snooping analyzes the information carried in the
packet, establishes and maintains a Layer 2 multicast forwarding table based on the information, and guides multicast data in
the data stream.
Global Settings page give the user the ability to enable MLD Snooping as well as selecting Multicast Forward Mode etc.
Unknown Multicast Packet
MLD Snooping
Multicast Forward Mode
IGMP Snooping Multicast Port
MLD Snooping Global Settings
Select an action for switch to handle with unknown multicast
packet.
● Drop: Drop the unknown multicast data.
● Flood: Flood the unknown multicast data.
● Forward to Router port: Forward the unknown multicast data to router port.
Note: This option is associated with the same one IGMP Snooping.
Enable or disable GlobaI MLD Snooping
Set the Multicast Forward Mode.
● MAC-Based: Forward using MAC address.

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