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: “The wireless router is connected to the wired LAN via the network switch that’s on the 172.16.1.0/24 network.”

A block of code is set as follows:

*Apr 28, 15:53:58.5353: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up

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: “To configure the duplex mode on a Windows operating system, open Device Manager, right-click on the interface, and select Properties | Advanced tab.”

Tips or important notes

Appear like this.