Cisco CCNA Routing and Switching ICND2 200-101 Official Cert Guide

Managing Cisco IOS Files

Module 2: Router Operation Introduction

Lesson 3: Working with Cisco IOS Files

Cisco routers use Cisco IOS software as the operating system (OS) for the router. For the most part, this book and the ICND1 book ignore some of the details about working with the IOS as an end to itself. Instead, the books have discussed the networking functions of IOS a great deal. Now we turn our attention to basic device management issues, such as how to upgrade the IOS and how a router loads the IOS at power-on.

Unlike many other OSs you ...