3Com 4500G Family Configuration Manual page 4

Conventions
The manual uses the following conventions:
Command conventions
Convention
Boldface
italic
[ ]
{ x | y | ... }
[ x | y | ... ]
{ x | y | ... } *
[ x | y | ... ] *
&<1-n>
#
GUI conventions
Convention
< >
[ ]
/
Symbols
Convention
The keywords of a command line are in Boldface.
Command arguments are in italic.
Items (keywords or arguments) in square brackets [ ] are optional.
Alternative items are grouped in braces and separated by vertical bars.
One is selected.
Optional alternative items are grouped in square brackets and
separated by vertical bars. One or none is selected.
Alternative items are grouped in braces and separated by vertical bars.
A minimum of one or a maximum of all can be selected.
Optional alternative items are grouped in square brackets and
separated by vertical bars. Many or none can be selected.
The argument(s) before the ampersand (&) sign can be entered 1 to n
times.
A line starting with the # sign is comments.
Button names are inside angle brackets. For example, click <OK>.
Window names, menu items, data table and field names are inside
square brackets. For example, pop up the [New User] window.
Multi-level menus are separated by forward slashes. For example,
[File/Create/Folder].
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.
Description
Description
Description