FDDI Token Frame

• Preamble: 64 bits

• Starting Delimiter (SD): 8 bits

• Frame Control (FC): 8 bits

  • bit format of 10000000 or 11000000 to indicate that it is a token

• Ending Delimiter (ED): 4 bits

  • contains a pair of non-data symbols (T) that terminate token frame

Preamble

SD

FC

ED

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