Ethernet: CSMA/CD

• CSMA/CD -- Collision Detect

  • If a collision is detected during transmission, cease transmitting and send a jamming signal
  • Wait random time, then re-transmit

• Managing the duration of collisions

  • If a is the maximum propagation delay on the bus than a collision can be detected up to 2 a ????time from the start of transmission
  • Minimum message size

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