====== 802.3 Packet Format ======

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===== Elements of the MAC frame =====

==== Preamble ====

  * **Description**
      * **7-octet**  field used to allow the PLS (Physical Layer Signaling) circuitry to reach its steady-state synchronization with the received packet’s timing.
  * **Pattern**
      * ''10101010 10101010 10101010 10101010 10101010 10101010 10101010''
==== Start Frame Delimiter (SFD) ====

  * **Description**
      * It immediately follows the preamble pattern and indicates the start position of the MAC frame.
  * **Pattern**
      * ''10101011''