Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

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

chmod +x PacketTracer601_i386_installer-rpm.bin

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "Click on Switches from the device-type selection box and insert any switch (except Switch-PT-Empty) into the workspace."