H3C S7500E Series Command Reference Manual page 4

Service Loopback Group
Configuration
Commands
Conventions
This section describes the conventions used in this documentation set.
Command conventions
Convention
Boldface
italic
[ ]
{ x | y | ... }
[ x | y | ... ]
{ x | y | ... } *
[ x | y | ... ] *
&<1-n>
#
Symbols
Convention
About the H3C S7500E Documentation Set
The H3C S7500E documentation set includes:
Category
Product description
and specifications
Bold text represents commands and keywords that you enter literally as shown.
Italic text represents arguments that you replace with actual values.
Square brackets enclose syntax choices (keywords or arguments) that are
optional.
Braces enclose a set of required syntax choices separated by vertical bars,
from which you select one.
Square brackets enclose a set of optional syntax choices separated by vertical
bars, from which you select one or none.
Asterisk marked braces enclose a set of required syntax choices separated by
vertical bars, from which you select at least one.
Asterisk marked square brackets enclose optional syntax choices separated by
vertical bars, from which you may select multiple choices or none.
The argument or keyword and argument combination before the ampersand (&)
sign can be entered 1 to n times.
A line that starts with a pound (#) sign is comments.
Means reader be extremely careful. Improper operation may cause bodily
injury.
Means reader be careful. Improper operation may cause data loss or damage to
equipment.
Means a complementary description.
Documents
Marketing brochures
Technology white papers
Card datasheets
Description
Description
Purposes
Describe product specifications and benefits.
Provide an in-depth description of software features
and technologies.
Describe card specifications, features, and standards.