EnGenius EWS Series User Manual page 129

VLAN Settings
If the Fast Leave feature is not used, a multicast querier will send a GS-query message when an MLD
group leave message is received. The querier stops forwarding traffic for that group only if no host
replies to the query within the specified timeout period. If Fast Leave is enabled, the Switch assumes
that only one host is connected to the port. Therefore, Fast Leave should only be enabled on a port if it is
connected to only one MLD-enabled device.
Fast Leave does not apply to a port if the Switch has learned that a multicast querier is attached to it.
Fast Leave can improve bandwidth usage for a network which frequently experiences many MLD host
add and leave requests.
VLAN ID
MLD Snooping Status
Fast Leave
Select from the drop down list whether to enable or disable MLD Snooping. Next, select to enable or
disable Fast Leave for the specified VLAN ID.
Click the Apply button
Displays the VLAN ID.
Select to enable or disable the MLD snooping feature for the specified
VLAN ID.
Enables or disables the MLD snooping Fast Leave feature for the specified
VLAN ID. Enabling this feature allows the Switch to immediately remove
the Layer 2 LAN port from its forwarding table entry upon receiving an
MLD leave message without first sending out an MLD group-specific (GS)
query to the port.
to accept the changes or the Cancel button to discard them.
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