![]() It is the role of the OSI Data Link layer to prepare Network layer packets for transmission and to control access to the physical media. Network layer packets do not have a way to directly access these different media. ![]() These physical networks can consist of different types of physical media such as copper wires, microwaves, optical fibers, and satellite links. The Network layer protocols organize our communication data so that it can travel across internetworks from the originating host to a destination host.įor Network layer packets to be transported from source host to destination host, they must traverse different physical networks.The Transport layer is responsible for dividing and managing communications between the processes running in the two end systems. ![]()
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