Verifying the configuration

# Display the static MAC address entries for interface GigabitEthernet 2/1/1.

[Device] display mac-address static interface gigabitethernet 2/1/1
MAC Address      VLAN ID    State            Port/NickName            Aging
000f-e235-dc71   1          Static           GE2/1/1                   N

# Display the blackhole MAC address entries.

[Device] display mac-address blackhole
MAC Address      VLAN ID    State            Port/NickName            Aging
000f-e235-abcd   1          Blackhole        N/A                      N

# Display the aging time of dynamic MAC address entries.

[Device] display mac-address aging-time
MAC address aging time: 500s.