9300_1#sho run int ten1/1/1

interface TenGigabitEthernet1/1/1
 description To DNA enp9s0
 switchport access vlan 666
 switchport mode access
end

9300_1#sho run int vl666
interface Vlan666
 ip address 10.168.66.5 255.255.255.0
end