PrefaceThe H3C S9500E documentation set includes 13 configuration guides, which describe the softwarefeatures for the H3C S9500E Series 10G Core Routing Switches and guide you through the softwareconfiguration procedures. These configuration guides also provide configuration examples to help youapply software features to different network scenarios.This preface includes:• Audience• Conventions• About the H3C S9500E Documentation Set• Obtaining Documentation• Documentation FeedbackAudienceThis documentation is intended for:Network plannersField technical support and servicing engineersNetwork administrators working with the S9500E seriesConventionsThis section describes the conventions used in this documentation set.Command conventionsConvention DescriptionBoldface 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 areoptional.{ x | y | ... } Braces enclose a set of required syntax choices separated by vertical bars, fromwhich you select one.[ x | y | ... ] Square brackets enclose a set of optional syntax choices separated by verticalbars, from which you select one or none.{ x | y | ... } * Asterisk marked braces enclose a set of required syntax choices separated byvertical bars, from which you select at least one.[ x | y | ... ] * Asterisk marked square brackets enclose optional syntax choices separated by