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| MLD Snooping Commands
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that port and the Fast Leave function is enabled. This allows the switch
to remove a port from the multicast forwarding table without first
having to send an MLD group-specific (GS) query to that interface.
◆ If Fast Leave is not used, a multicast router (or querier) will send a
GS-query message when a group leave message is received. The
router/querier stops forwarding traffic for that group only if no host
replies to the query within the specified time-out period.
◆ If Fast Leave is enabled, the switch assumes that only one host is
connected to the interface. Therefore, Fast Leave should only be
enabled on an interface if it is connected to only one MLD-enabled
device, either a service host or a neighbor running MLD snooping.
◆ Fast Leave does not apply to a port if the switch has learned that a
multicast router is attached to it.
◆ Fast Leave can improve bandwidth usage for a network which
frequently experiences many MLD host add and leave requests.
EXAMPLE
MLD>fastleave 6-10 enable
MLD>
mld throttling This command displays or sets MLD group throttling for specified ports
SYNTAX
mld throttling [port-list] [group-limit]
port-list - A specific port or a range of ports. (Range: 1-28, or all)
group-limit - The number of multicast groups to which a port can
belong. (Range: 1-10, or 0 to indicate unlimited)
DEFAULT SETTING
unlimited
COMMAND USAGE
MLD throttling sets a maximum number of multicast groups that a port can
join at the same time. When the maximum number of groups is reached on
a port, any new MLD listener reports will be dropped.
EXAMPLE
MLD>throttling 9 5
MLD>
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