FRAMING
v FRAMING: · In order to provide services to the network layer, the data link layer must use the services from the physical layer. · The physical layer sends the bit stream to the data link layer. · The no. of bits received may be different from the no. of bits transmitted. · The data link layer convert the bit stream into data frames and compute the checksum for each frame. · At the destination, the check sum is recomputed. · If the recomputed check sum is different from the one contained in the frame. · An error has occurred and the data link layer deals with the errors. · ...