"OSI transport services" include layers 1 through ... The most ubiquitous example is the IP protocol in TCP/IP (see TCP/IP). IPX, SNA and AppleTalk are examples of earlier routable protocols ...

Next, we examine the concept of network architecture. As part of this discussion we introduce the idea of "layering" and present the Open Systems Interconnect (OSI) networking model as an example of ...

Ethernet is a layer 2 data link protocol that is widely used with the TCP/IP protocol ... to learn about the protocol layers (see OSI model). The IP layer 3 breaks apart the data being transmitted ...