Padding
nBytes
added to data portion of an Ethernet frame to make sure this field is at least 46 bytes in size
Ethernet frame types:
nIEEE
802.3 (“Ethernet 802.2” or “LLC”)
nNovell
proprietary 802.3 frame (or “Ethernet 802.3”)
nEthernet
II frame
nIEEE
802.3 SNAP frame