Конечно.
Different authors have interpreted the TCP/IP model differently, and disagree whether the link layer, or the entire TCP/IP model, covers OSI layer 1 (
physical layer) issues, or whether a hardware layer is assumed below the link layer.
Several authors have attempted to incorporate the OSI model's layers 1 and 2 into the TCP/IP model, since these are commonly referred to in modern standards (for example, by
IEEE and
ITU). This often results in a model with five layers, where the link layer or network access layer is split into the OSI model's layers 1 and 2.