Configuring the MAC Address Limiting Function

Procedure

• Limit the number of MAC address entries learned on an interface.
  1. Run system-view

     The system view is displayed.

  2. Run interface interface-type interface-number

     The interface view is displayed.

  3. Run mac-address limit maximum max-num

     The maximum number of MAC address entries that can be learned on the interface is set.

     By default, the number of MAC address entries learned on an interface is not limited.

  4. Run mac-address limit alarm { disable | enable }

     The switch is configured to or not to generate an alarm when the number of learned MAC address entries reaches the limit.

     By default, the switch generates an alarm when the number of learned MAC address entries reaches the limit.

  5. Run commit

     The configuration is committed.

• Limit the number of MAC address entries learned in a VLAN.
  1. Run system-view

     The system view is displayed.

  2. Run vlan vlan-id

     The VLAN view is displayed.

  3. Run mac-address limit maximum max-num

     The maximum number of MAC address entries learned in the VLAN is set.

     By default, the number of MAC address entries learned in a VLAN is not limited.

  4. Run mac-address limit action { discard | forward }

     The action to be taken on packets with unknown source MAC addresses is configured when the number of learned MAC address entries reaches the limit.

     By default, the device forwards packets with unknown source MAC addresses after the number of learned MAC address entries reaches the limit.

  5. Run mac-address limit alarm { disable | enable }

     The switch is configured to or not to generate an alarm when the number of learned MAC address entries reaches the limit.

     By default, the switch generates an alarm when the number of learned MAC address entries reaches the limit.

  6. Run commit

     The configuration is committed.