I
n this chapter, you will learn how to manage Cisco routers on an
internetwork. The Internetwork Operating System (IOS) and configuration
files reside in different locations in a Cisco device, and it's important to
understand where these files are located and how they work.
You will learn about the main components of a router, the router boot
sequence, and the configuration register, including how to use the configu-
ration register for password recovery. Then you will learn how to manage
routers by performing the following tasks:
Backing up and restoring the Cisco IOS
Backing up and restoring the Cisco configuration
Gathering information about neighbor devices through CDP and
Telnet
Resolving hostnames
Using the
ping
and
trace
commands to test network connectivity
The Internal Components of a Cisco Router
I
n order to configure and troubleshoot a Cisco internetwork, you
need to know the major components of Cisco routers and understand
what these components do. Table 7.1 describes the major Cisco router
components.
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