H3C Technologies H3C S12500 Series Switches - Manual (Page 3)

Preface
The H3C S12500 documentation set includes 14 configuration guides, which describe the software
features for the H3C S12500 Series Routing Switches and guide you through the software configuration
procedures. These configuration guides also provide configuration examples to help you apply software
features to different network scenarios.
The ACL and QoS Configuration Guide describes ACL and QoS fundamentals and configuration. It
describes how to use ACL or other match criteria to classify traffic into multiple classes and implement
per-class traffic control. ACL and QoS help you allocate limited network resources reasonably and
improve the network usage.
This preface includes:
• Audience
• Conventions
• About the H3C S12500 documentation set
• Obtaining documentation
• Technical support
• Documentation feedback
Audience
This documentation is intended for:
• Network planners
• Field technical support and servicing engineers
• Network administrators working with the S12500 series
Conventions
This section describes the conventions used in this documentation set.
Command conventions
Convention Description
Boldface Bold text represents commands and keywords that you enter literally as shown.
Italic Italic text represents arguments that you replace with actual values.
[ ] Square brackets enclose syntax choices (keywords or arguments) that are optional.
{ x | y | ... }
Braces enclose a set of required syntax choices separated by vertical bars, from which
you select one.
[ x | y | ... ]
Square brackets enclose a set of optional syntax choices separated by vertical bars, from
which you select one or none.
{ x | y | ... } *
Asterisk marked braces enclose a set of required syntax choices separated by vertical
bars, from which you select at least one.