Chapter 1. Internetworking Basics

The following topics are covered in this chapter:

  • Open System Interconnection Reference Model

  • Information Formats

  • Network Hierarchy

  • Connection-Oriented and Connectionless Network Services

  • Network Addressing

  • Flow Control

  • Error-Checking

  • Standards Organization

Internetworks are groups of individual networks functioning as a single large network. Internetworking refers to the technology and devices—such as bridges, routers, and switches—creating and administering these internetworks.

Two primary types of networks are used by customers:

  • Local-area networks (LANs) enable multiple users in a small geographical area, such as within a building or campus, to share files and exchange messages. LANs also enable the sharing of resources, ...

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