TCP/IP
23.1 Introduction
Networking technologies such as Ethernet, Token Ring and FDDI provide a data link layer function; that is, they allow a reliable connection between one node and another on the same network. They do not provide internetworking where data can be transferred from one network to another or from one network segment to another. For data to be transmitted across a network requires an addressing structure which is read by a bridge, gateway and router. The interconnection of networks is known as internetworking (or an internet). Each part of an internet is a subnetwork (or subnet). Transmission control protocol (TCP) and Internet protocol (IP) are a pair of protocols that allow one subnet to communicate with another. A protocol ...
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