Address Table Commands
Page 32
bridge multicast forbidden address
The bridge multicast forbidden address Interface Configuration (VLAN) mode command forbids adding a spe-
cific multicast address to specific ports. Use the no form of this command to return to the default configuration.
Syntax
bridge multicast forbidden address {mac-multicast-address | ip-multicast-address} {add | remove} {ethernet
interface-list | port-channel port-channel-number-list}
no bridge multicast forbidden address {mac-multicast-address | ip-multicast-address}
Parameters
•
add — Adds ports to the group.
• remove — Removes ports from the group.
• mac-multicast-address — A valid MAC multicast address.
• ip- multicast-address — A valid IP multicast address.
• interface-list — Separate nonconsecutive Ethernet ports with a comma and no spaces; hyphen is used to
designate a range of ports.
• port-channel-number-list — Separate nonconsecutive valid port-channels with a comma and no spaces; a
hyphen is used to designate a range of port-channels.
Default Configuration
No forbidden addresses are defined.
Command Modes
Interface Configuration (VLAN) mode
User Guidelines
Before defining forbidden ports, the multicast group should be registered.
Examples
In this example, MAC address 0100.5e02.0203 is forbidden on port 7 within VLAN 8.
Console(config)#
interface vlan
8
Console(config-if)#
bridge multicast address
0100.5e.02.0203
Console(config-if)#
bridge multicast forbidden address
0100.5e02.0203
add ethernet
7
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