What is the difference between the data link level and the communication level?

Question

What is the difference between data link layer and link level? Do they mean the same thing?

Answer 1

Despite the different semantics of stratification in TCP / IP and OSI, the link layer is often described as a combination of the data link layer and the physical layer in the Open Systems Interconnection (OSI) protocol stack.

The communication layer of the TCP / IP model is often compared directly with the combination of the data link layer and the physical layer in the Open Systems Interconnection (OSI) protocol stack. Although they are to some extent consistent with the technical scope of the protocols, they are not identical . The level of communication in TCP / IP is still wider in scope and, in principle, differs from the concept and terminology of classification.

Source: Wikipedia

Answer 2

In personnel work, TCP / IP ( Internet Protocol Suite ) model, OSI in addition to other components, it is contained in the lower layer of TCP / IP, the link layer . The level of communication of the Internet protocol relates only to hardware problems in terms of obtaining hardware addresses for determining the location of hosts on the physical network and transmitting data frames by reference. Thus, the level of communication is broader in scope and covers all methods that affect local communication, which is a group of connections that are limited in volume to other nodes in the local access network.

The communication layer is the lowest level of Internet protocol components since TCP / IP is designed to be independent of equipment. Although the data link layer is the second layer of the OSI model.

Answer 3

Data link layer: The data link layer connects communication between systems in the same local network.

Link Level: Link Layer is the connection between the physical and logical network.