Use of Data Link Layer:-
i)Framing:-Group the physical layer bit stream into units called frames. so that each frame is distinguishable from another.
ii)Flow control:-It Ensuring the sending entity does not overwhelm
the receiving entity.Flow control. Prevent a fast sender from overwhelming a slower receiver.
iii)Error control :-It allows the receiver to inform the sender of any frames lost or damaged in transmission and coordinates the retransmission of those frames by the sender.
iv)Sender checksums the frame and sends checksum together with data. The checksum allows the receiver to determine when a frame has been damaged in transit.
vI)Receiver recomputes the checksum and compares it with the received value. If they differ, an error has occurred and the frame is discarded.
v)Medium Access Control (MAC):-It provide a link with reliable communication or there is a available dedicated link(channel) between the sender and receiver .
i)Framing:-Group the physical layer bit stream into units called frames. so that each frame is distinguishable from another.
ii)Flow control:-It Ensuring the sending entity does not overwhelm
the receiving entity.Flow control. Prevent a fast sender from overwhelming a slower receiver.
iii)Error control :-It allows the receiver to inform the sender of any frames lost or damaged in transmission and coordinates the retransmission of those frames by the sender.
iv)Sender checksums the frame and sends checksum together with data. The checksum allows the receiver to determine when a frame has been damaged in transit.
vI)Receiver recomputes the checksum and compares it with the received value. If they differ, an error has occurred and the frame is discarded.
v)Medium Access Control (MAC):-It provide a link with reliable communication or there is a available dedicated link(channel) between the sender and receiver .
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