Chapter 17
| Address Table Commands
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Example
Console(config)#mac-address-table mac-isolation
Console(config)#
mac-address-table
max-mac-count
This command sets the maximum number of MAC addresses which can be learned
on an interface. Use the no form to restore the default setting.
Syntax
mac-address-table max-mac-count count {interface interface | vlan vlan-id}
count - The maximum number of MAC addresses which can be learned on
an interface. (Range: 0-1024, where 0 means disabled)
interface
ethernet unit/port
unit - Unit identifier. (Range: 1)
port - Port number. (Range: 1-12/28)
vlan-id - VLAN ID (Range: 1-4094)
Default Setting
Disabled
Command Usage
â—† If an interface reaches its maximum learning count, a packet with a new source
address will be dropped and address will not be learned.
â—† At most 32 VLANs can be enabled for mac-address-table max-mac-count, mac-
address-table sticky-dynamic, or mac-address-table movable-static.
â—† If mac-address-table sticky-dynamic or mac-address-table movable-static is
enabled, and the maximum MAC count has not been set, it will be
automatically enabled by the system and set to 1024.
â—† If the maximum MAC count is changed from small count to bigger one, the
learned MACs on that interface are all retained. However, if it is changed from a
large count to a smaller one, all of the learned MAC addresses on that interface
are cleared.
â—† Maximum MAC count cannot be set on a trunk, but can set for the member
ports of a trunk.
Example
Console(config)#mac-address-table max-mac-count 10 interface ethernet 1/2
Console(config)#
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