This chapter covers important IOS features that you can use to manage your IOS
device. Many of these features are supported across all IOS devices, but some
of them are supported on only certain devices. This chapter focuses on these
features as they relate to Cisco routers, beginning with how the router boots up, finds
its operating system, and loads its configuration file, as well as how to back up and restore
your IOS image. There are many tools that you can use on your router for troubleshooting
connection problems, including the Cisco Discovery Protocol (CDP), ping, trace, telnet, and
debug. These tools are discussed at the...