When i show interface terse in my Juniper switch qfx5100:
....
ae29 up up
ae29.0 up up inet 192.168.9.2/24
ae30 up up
ae30.0 up up eth-switch
ae31 up up
ae31.0 up up eth-switch
ae32 up up
ae32.0 up up eth-switch
ae33 up up
ae33.0 up up eth-switch
ae35 up up
ae35.0 up up eth-switch
you see every aex
have a aex.0
, why ?