Convention Descri
tion 
&<1-n> 
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. 
 
GUI conventions 
Convention Descri
tion 
Boldface 
Window names, button names, field names, and menu items are in Boldface. For 
example, the New User window appears; click OK. 
>  Multi-level menus are separated by angle brackets. For example, File > Create > Folder.
 
Symbols 
Convention Descri
tion 
 WARNING 
An alert that calls attention to important information that if not understood or followed can 
result in personal injury. 
 CAUTION 
An alert that calls attention to important information that if not understood or followed can 
result in data loss, data corruption, or damage to hardware or software.  
 IMPORTANT 
An alert that calls attention to essential information. 
NOTE 
An alert that contains additional or supplementary information. 
 TIP 
An alert that provides helpful information. 
 
Network topology icons 
 
Represents a generic network device, such as a router, switch, or firewall. 
 
Represents a routing-capable device, such as a router or Layer 3 switch. 
 
Represents a generic switch, such as a Layer 2 or Layer 3 switch, or a router that supports 
Layer 2 forwarding and other Layer 2 features. 
 
Port numbering in examples 
The port numbers in this document are for illustration only and might be unavailable on your device.