Ethernet II vs 802.3 Frames

• Why the Differences

  • Lack of a length field could cause problems
  • 802 would create multiple standards; Giving them all the same connection to the next higher layer (802.2 seemed wise)

Preamble

SFD

DA

SA

Ethertype

Preamble

SFD

DA

SA

Length

LLC Frame

FCS

Data

FCS

Ethernet II Frame

802.3 Frame

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