Specifications

Preface xi

Conventions

The online copy of this guide is always up-to-date and integrates the latest enhancements to the

product. You can access the current online copy of this guide on the World Wide Web at

http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.

Conventions

This publication uses the following conventions:

• The symbol ^ represents the key labeled Control. For example, the key combination ^z means

hold down the Control key while you press the z key.

Command descriptions use these conventions:

• Examples that contain system prompts denote interactive sessions, indicating the commands that

you should enter at the prompt. The system prompt indicates the current level of the EXEC

command interpreter. For example, the prompt

router> indicates that you should be at the user

level, and the prompt

router# indicates that you should be at the privileged level. Access to the

privileged level usually requires a password.

• Commands and keywords are in boldface font.

• Arguments for which you supply values are in italic font.

• Elements in square brackets ([ ]) are optional.

• Alternative but required keywords are grouped in braces ({ }) and separated by vertical bars (|).

Examples use these conventions:

• Terminal sessions and sample console screen displays are in screen font.

• Information you enter is in boldface screen font.

• Nonprinting characters, such as passwords, are in angle brackets (< >).

• Default responses to system prompts are in square brackets ([ ]).

• Exclamation points (!) at the beginning of a line indicate a comment line.

Caution Means reader be careful. You are capable of doing something that might result in

equipment damage or loss of data.

Note Means reader take note. Notes contain helpful suggestions or references to materials not

contained in this manual.

Timesaver Means the described action saves time. You can save time by performing the action

described in the paragraph.

Tips Means the following information might help you solve a problem.

Warning This warning symbol means danger. You are in a situation that could cause bodily injury.

Before you work on any equipment, be aware of the hazards involved with electrical circuitry and

be familiar with standard practices for preventing accidents. To see translations of the warnings that

appear in this publication, refer to the Regulatory Compliance and Safety Information document that

accompanied this device.