Types Of Data Link Layer Protocols. Stop and wait arq. It provides unidirectional data.
High level data link protocol hdlc hdlc is basically a protocol that is now assumed to be an umbrella under which. Elementary protocols at first we will discuss about the elementary protocols. Osi layer 2 data link layer the data link layer or layer 2 is the second layer of the seven layer osi model of computer networking.
Types of data link protocols simplex protocol.
Sdlc synchronous data link protocol this protocol was originally developed by ibm as part of ibm s sna systems. The services provided by the data link protocols may be any of the following. Touted as the data link layer layer 2 is the second of the seven level osi model that is. This layer is the protocol layer that transfers data between adjacent network nodes in a wide area network wan or between nodes on the same local area network lan segment.
