Allied Telesis AT-8550 - Manual (Page 28)

Understanding the Command Syntax
2-4
Symbols
You may see a variety of symbols shown as part of the command
syntax. These symbols explain how to enter the command, and you
do not type them as part of the command itself.
Table 2-1
summarizes command syntax symbols.
Table 2-1 Command Syntax Symbols
Symbol Description
angle brackets < > Enclose a variable or value. You must specify the variable or value. For
example, in the syntax
config vlan ipaddress
you must supply a VLAN name for and an address for
when entering the command. Do not type the angle
brackets.
square brackets [ ] Enclose a required value or list of required arguments. One or more
values or arguments can be specified. For example, in the syntax
disable vlan [ | all]
you must specify either the VLAN name for , or the keyword
all when entering the command. Do not type the square brackets.
vertical bar | Separates mutually exclusive items in a list, one of which must be
entered. For example, in the syntax
config snmp community [readonly | readwrite]
you must specify either the read or write community string in the
command. Do not type the vertical bar.
braces { } Enclose an optional value or a list of optional arguments. One or more
values or arguments can be specified. For example, in the syntax
show vlan { | all}
you can specify either a particular VLAN or the keyword all . If you do
not specify an argument, the command will show all VLANs. Do not type
the braces.