Chapter 2. Cisco Router Review

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This chapter reviews the following key topics about router components :

• Memory

• Interfaces and ports

• The command-line interface (CLI)

The purpose of this chapter is to provide a brief review of Cisco's Internetwork Operating System (IOS) software and show how to use the command-line interface (CLI) to configure and manage a Cisco router. These skills are an essential part of successfully completing the lab scenarios. A thorough understanding of router hardware components and how Cisco IOS software controls these components is necessary to effectively configure, manage, and troubleshoot Cisco routers. If you already have training or experience with Cisco routers, much of the following information might be second nature. If not, a brief review follows to provide the general concepts necessary to understand the configuration process used during the lab scenarios.

This chapter begins by discussing the various memory types in a router, as well as the functions that each provides. Next, you will review interfaces and ports and their purpose within the router. Finally, you will review the CLI and how to navigate the CLI to configure and manage a Cisco router.

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