ZyXEL Communications ES-2024A, User Manual

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ES-2024A User’s Guide
148 Chapter 27 Introducing the Commands
27.4 Command Syntax Conventions
The rules of the commands are listed next.
• The command keywords are in
courier new
font.
• The required fields in a command are enclosed in angle brackets
<>
, for instance,
ping
<ip>
means that you must specify an IP number for this command.
• The optional fields in a command are enclosed in square brackets
[]
, for instance,
configure snmp-server [contact <system contact>] [location
<system location>]
means that the
contact
and
location
fields are optional.
• “Command” refers to a command used in the command line interface (CI command).
• The
|
symbol means “or”.
• The entry
<cr>
in the command lines refers to carriage return. Press
[ENTER]
or carriage
return after a command to execute the command.
• Use the up (
y
) or down (
z
) arrow key to scroll through the command history list.
• The CLI does not accept partial or incomplete commands. You may enter a unique part of
a command and press
[TAB]
to have the switch automatically display the full command.
For example, if you enter “
config
” and press
[TAB]
, the full command of “
configure
”
automatically displays.
• Each interface refers to an Ethernet port on the switch. Commands configured after the
interface command correspond to those ports.
• Type multiple ports or port ranges separated by a comma. Ranges of port numbers are
typed separated by a dash.
27.5 Getting Help
The system includes a help facility to provide you with the following information about the
commands:
• List of available commands under a command group.
• Detailed descriptions of the commands.
27.5.1 List of Available Commands
Enter “
help
” to display a list of available commands and the corresponding sub commands.
Enter “
?
” to display a list of commands you can use.