The main function of the Data Link layer is to receive data packages from network layer and convert them to the frames that are ready to be transmitted by the first layer in OSI model - the Physical layer. The frame would include not only data packages, but also the sender’s and the receiver’s network addresses, as well as error ...
The network layer is completing the job of translating the network addresses into lower level language and finding a route how data could be delivered.
Network equipment is having two types of addresses that help simplify delivery. There is a Network address (Network layer address, logical address, virtual address) and a physical address. If we compare the Network address with the ...