Configuring UUFB

Complete the following steps to configure UUFB.
  1. Enter global configuration mode. 
    device# configure terminal
  2. Enter interface configuration mode and specify the interface that you want to configure for UUFB.

    The interface can be a physical interface or LAG interface. 

    device(config)# interface ethernet 1/1/1
  3. Enter the block unknown-unicast command to block unknown unicast traffic.
    device(config-interface-eth-1/1/1)# block unknown-unicast
The following example configures UUFB on an Ethernet interface.
device# configure terminal
device(config)# interface ethernet 1/1/1
device(config-interface-eth-1/1/1)# block unknown-unicast
device(config-interface-eth-1/1/1)# end

The following example configures UUFB on a LAG interface. 

device# configure terminal
device(config)# interface lag 10
device(config-lag-if-lg10)# block unknown-unicast
device(config-lag-if-lg10)# end

Parent topic: Unknown Unicast Flood Block