744 Configuring L2 Multicast Features
mac address-table
multicast forbidden
address vlan
vlan-id
{
mac-multicast-address
|
ip-multicast-address
}
{add | remove}
interface
interface-list
Forbid adding a specific Multicast address to specific ports.
•
mac-multicast-address
— MAC multicast address in the
format xxxx.xxxx.xxxx.
•
ip- multicast-address
— IP multicast address.
•
add
— Adds ports to the group. If no option is specified,
this is the default option.
•
remove
— Removes ports from the group.
•
interface-list
— Specifies the interface type (
port-
channel
,
gigabitethernet
,
tengigabitethernet
) and
number. Separate nonconsecutive interfaces with a
comma and no spaces; use a hyphen to designate a range
of ports.
mac address-table
multicast forbidden
forward-unregistered
vlan
vlan-id
Prevent the switch from forwarding traffic with
unregistered multicast addresses on the specified VLAN.
This command sets the forwarding mode to Filter
Unregistered.
mac address-table
multicast forward-all
vlan
vlan-id
Allow the switch to forward all multicast packets on the
specified VLAN.
mac address-table
multicast forward-
unregistered vlan
vlan-id
Allow the switch to forward packets with unregistered
multicast addresses on the specified VLAN.
NOTE: Do not use the mac address-table multicast
forbidden forward-unregistered command with the mac
address-table multicast forward-unregistered command on
the same interface.
exit Exit to Privileged EXEC mode.
show mac address-table
multicast [vlan
vlan-id
]
[address
mac-multicast-
address
|
ip-multicast-
address
] [format ip |
mac]]
View entries in the multicast MAC address table.
show mac address-table
filtering
vlan-id
View the multicast filtering configuration information for
the specified VLAN.
Command Purpose
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