What is the data link layer

The data link layer

in the will study the design principle for the second layer in our model the data link layer this study deals with hello gridham for achieving reliable efficient communication of all units of information called frames rather than individual bits as in the physical layer between two adjust machine by adjust we mean that that you machine are connected by a communication channel that eggs conceptually like a wire cable telephone line or wireless channel...

data link layer design

issue the data link layer uses the services of the physical layer to send the receipts our communication channel it has a number of function including providing a well defined service interface to the network layer dealing with transmission errors and regulating the flow of data so that slow receiver are not somebody by fast sender...

service provided

the network layer the function of the data link layer is the provides service to network layer the principle service is transferring data from the network layer on the source machine to the network lay on the destination machine on the source machine is an entity call it a process in the network layer that handsome bits to the data link layer for transmission to the destination the job of the data link layer is to transmit The Beat to the destination machines so they can be handed our to the network layer