most of us has confused between the network devices en, et & ent, you can read the following to put a limit for this confusion 🙂 :
ent:
The notation ent is used to specify the hardware adapter. It has nothing to do with the TCP/IP address.
en:
en represents the interface associated with hardware adapter ent0. The TCP/IP address is associated with this interface.
et:
et represents the interface associated with hardware adapter ent0. The notation et0 is used for IEEE 802.3
inet
it represents a network device (physically doesn’t exists), keeps attributes, infos from the actual network settings (hostname, routes..)
Ref.
http://aix4admins.blogspot.com/2011/05/when-adapter-is-added-to-host-logical.html
http://lokams.blogspot.com/2010/08/difference-between-ethernet.html