Command Syntax Conventions

The conventions used to present command syntax in this book are the same conventions used in the Cisco IOS Software Command Reference. The Command Reference describes these conventions as follows:

• Vertical bars (|) separate alternative, mutually exclusive elements.

• Square brackets ([ ]) indicate optional elements.

• Braces ({ }) indicate a required choice.

• Braces within brackets ([{ }]) indicate a required choice within an optional element.

• Boldface indicates commands and keywords that are entered exactly as shown.

• Italics indicates arguments for which you supply values.