Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "If you use the show flash: command in privilege mode on a Cisco IOS switch, you will see the vlan.dat file."

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

Branch-B(config)#ip route 10.1.1.0 255.255.255.0 10.2.1.5
Branch-B(config)#ip route 172.16.1.0 255.255.255.0 10.2.1.10
Branch-B(config)#ip route 192.168.1.0 255.255.255.0 10.2.1.20

Any command-line input or output is written as follows:

SW1(config)#interface FastEthernet 0/1
SW1(config-if)#switchport mode access
SW1(config-if)#switchport access vlan vlan-ID
SW1(config-if)#no shutdown
SW1(config-if)#exit

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select System info from the Administration panel."

Tips or important notes

Appear like this.