Specifications
iii
Cisco IOS IP Switching Command Reference
May 2008
CONTENTS
About Cisco IOS Software Documentation ix
Documentation Objectives ix
Audience ix
Documentation Conventions ix
Typographic Conventions x
Command Syntax Conventions x
Software Conventions x
Reader Alert Conventions xi
Documentation Organization xi
Cisco IOS Documentation Set xii
Cisco IOS Documentation on Cisco.com xii
Configuration Guides, Command References, and Supplementary Resources xiii
Additional Resources and Documentation Feedback xviii
Using the Command-Line Interface in Cisco IOS Software xix
Initially Configuring a Device xix
Using the CLI xx
Understanding Command Modes xx
Using the Interactive Help Feature xxii
Understanding Command Syntax xxiii
Understanding Enable and Enable Secret Passwords xxiv
Using the Command History Feature xxv
Abbreviating Commands xxvi
Using Aliases for CLI Commands xxvi
Using the no and default Forms of Commands xxvi
Using the debug Command xxvii
Filtering Output Using Output Modifiers xxvii
Understanding CLI Error Messages xxviii
Saving Changes to a Configuration xxviii
Additional Information xxix