DELL 9.7(0.0) ユーザーズマニュアル

Learning Limit Violation Actions

Learning limit violation actions are user-configurable.
To configure the system to take an action when the MAC learning limit is reached on an interface and a 
new address is received using one the following options with the mac learning-limit command, use 

the following commands.

• Generate a system log message when the MAC learning limit is exceeded.

INTERFACE mode

learn-limit-violation log

• Shut down the interface and generate a system log message when the MAC learning limit is 

exceeded.
INTERFACE mode

learn-limit-violation shutdown

Setting Station Move Violation Actions

Station move violation actions are user-configurable.
no-station-move is the default behavior. You can configure the system to take an action if a station 

move occurs using one the following options with the mac learning-limit command.
To display a list of interfaces configured with MAC learning limit or station move violation actions, use the 
following commands.

• Generate a system log message indicating a station move.

INTERFACE mode

station-move-violation log

• Shut down the first port to learn the MAC address.

INTERFACE mode

station-move-violation shutdown-original

• Shut down the second port to learn the MAC address.

INTERFACE mode

station-move-violation shutdown-offending

• Shut down both the first and second port to learn the MAC address.

INTERFACE mode

station-move-violation shutdown-both

• Display a list of all of the interfaces configured with MAC learning limit or station move violation.

CONFIGURATION mode

show mac learning-limit violate-action

Recovering from Learning Limit and Station Move Violations

After a learning-limit or station-move violation shuts down an interface, you must manually reset it.
To reset the learning limit, use the following commands.

Layer 2

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