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Interconnecting Cisco Network Devices: Internetworking concepts overview

This chapter excerpt reviews the basic internetworking concepts including network components, planning hierarchical networks, and an in-depth discussion of the OSI model.

Interconnecting Cisco Network Devices


Chapter 1: Internetworking concepts overview

This excerpt is reprinted with permission from Cisco Press. For more information or to order the book, visit the Cisco Press Web site.

The purpose of this chapter is to review basic internetworking concepts. These concepts are used throughout networking and are fundamental in understanding the functions of Cisco network devices. Upon completion of this chapter, you will be able to describe the process in which data is transferred from an application across a network; given a network topology, identify the roles and functions of each network device and determine where each device best fits into the network; and, given a network that combines switching, routing, and remote access, select the appropriate Cisco equipment.

Concepts include:

  • Defining Network Components
  • Mapping Business Needs to a Hierarchical Model
  • OSI Reference Model Overview
  • Communicating Between OSI Reference Model Layers
  • Physical Layer Functions
  • Data Link Layer Functions
  • Network Layer Functions
  • Transport Layer Functions
  • OSI Lower Layer Review
  • Selecting Cisco Products>/ul>

    This chapter is posted in full as a pdf file. To continue reading, click here.

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