data link layer

1 definition found

data link layer - Free On-line Dictionary of Computing (26 May 2007) :

  data link layer
  data link level
  
     <networking> 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)