Csmacd

2 definitions found

From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]:

  CSMACD
       Carrier Sense Multiple Access with Collision Detection (IEEE 802.3,
       ethernet, CSMA/CD), "CSMA/CD"
       
       



From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:

  CSMA/CD
       
          Carrier Sense Multiple Access / Collision Detect.
       
          The low level network arbitration {protocol} used on
          {Ethernet}.  Nodes wait for quiet on the net before starting
          to transmit and listen while they are transmitting.  If two
          nodes transmit at once the data gets corrupted.  The nodes
          detect this and continue to transmit for a certain length of
          time to ensure that all nodes detect the collision.  The
          transmitting nodes then wait for a random time before
          attempting to transmit again thus minimising the chance of
          another collision.  The ability to detect collision during
          transmission reduces the amount of {bandwidth} wasted on
          collisions compared with simple {ALOHA} broadcasting.
       
          (1995-02-23)