H3C MSR810 Command Reference Manual page 3

Preface
This command reference describes the configuration commands for PPP, HDLC, L2TP, and so on.
This preface includes the following topics about the documentation:
• Audience.
• Conventions
• 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 H3C MSR Router series.
Conventions
The following information describes the conventions used in the documentation.
Command conventions
Convention
Boldface
Italic
[ ]
{ x | y | ... }
[ x | y | ... ]
{ x | y | ... } *
[ x | y | ... ] *
&<1-n>
#
GUI conventions
Convention
Boldface
>
Description
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 a minimum of one.
Asterisk marked square brackets enclose optional syntax choices separated by vertical
bars, from which you select one choice, 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.
Description
Window names, button names, field names, and menu items are in Boldface. For
example, the New User window opens; click OK.
Multi-level menus are separated by angle brackets. For