Ethernet

• IEEE 803.2 MAC frame

  • Preamble: 7 byte pattern of alternating 0s and 1s used by the receiver to establish bit synchronization
  • Start frame delimiter (SDF): sequence 10101011 indicating start of frame, enables receiver to establish first bit of frame
  • Destination address (DA): specifies the stations for which the frame is intended ( 2 or 6 bytes, implementation decision, usually 6 bytes)
    • it may be one of the following
      • a unique physical address
      • a group address
      • a global address

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