
CHAPTER
Using Cisco IOS Software 1-1
1
Using Cisco IOS Software
This chapter provides helpful tips for understanding and configuring Cisco IOS software
using the command-line interface (CLI) and contains the following sections:
• Getting Help, page 1-2
• Understanding Command Modes, page 1-8
• Using the no and default Forms of Commands, page 1-11
• Saving Configuration Changes, page 1-11
For an overview of Cisco IOS software configuration, refer to the Configuration
Fundamentals Configuration Guide.
For information on the conventions used in this guide, see the “Conventions” section on
page xii.
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