Preamble - 7 bytes - Alternate 1s & 0s SFD - 1 Byte - Start of Frame Delemiter Destination MAC Address - 6 Bytes Source MAC Address - 6 Bytes Length/Type - 2 Bytes - To identify the N/W Layer Protocol Data - Ranges from 46 - 1500Bytes... FCS - 4 Bytes - Frame Check Sequence Total - 64Bytes - 1518 Bytes (Excluding Preamble & SFD)