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1 definition found
 for data link layer
From The Free On-line Dictionary of Computing (30 December 2018) :

  data link layer
  data link level
  layer 2
  
      Layer two, the second lowest layer in the OSI
     seven layer model.  The data link layer splits data into
     frames (see fragmentation) for sending on the physical
     layer and receives acknowledgement frames.  It performs error
     checking and re-transmits frames not received correctly.  It
     provides an error-free virtual channel to the network layer.
     The data link layer is split into an upper sublayer, Logical
     Link Control (LLC), and a lower sublayer, Media Access
     Control (MAC).
  
     Example protocols at this layer are ABP, Go Back N,
     SRP.
  
     (1995-02-14)
  

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