36Task CommandDisplay MAC address tableinformation.display mac-address [ mac-address [ vlan vlan-id ] | [ [ dynamic |static ] [ interface interface-type interface-number ] | blackhole |multiport ] [ vlan vlan-id ] [ count ] ]Display the MAC address informationof the egress RB specified by itsnickname (see Figure 6).display mac-address nickname nicknameDisplay the aging timer for dynamicMAC address entries. display mac-address aging-timeDisplay the system or interface MACaddress learning state.display mac-address mac-learning [ interface interface-typeinterface-number ]Display MAC address statistics. display mac-address statisticsDisplay the MAC address move records display mac-address mac-move [ slot slot-number ]Figure 6 An example for the display mac-address nickname commandMAC address table configuration exampleNetwork requirementsOn a network:• Host A at MAC address 000f-e235-dc71 is connected to interface Ten-GigabitEthernet 1/0/1 ofDevice and belongs to VLAN 1.• Host B at MAC address 000f-e235-abcd), which behaved suspiciously on the network, alsobelongs to VLAN 1.Configure the MAC address table as follows:• To prevent MAC address spoofing, add a static entry for Host A in the MAC address table ofDevice.• To drop all frames destined for Host B, add a blackhole MAC address entry for the host.• Set the aging timer to 500 seconds for dynamic MAC address entries.
