Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning. Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "The keyring that we need to copy is located in /priv/ceph.client.admin.keyring."

A block of code is set as follows:

allow-vmbr1 ens21  
iface ens21 inet manual 
    ovs_type OVSPort 
    ovs_bridge vmbr1

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

# apt-get install openvswitch-switch  

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Open vSwitch bridge and interface under the Create tab of the Network menu of the node."

Warnings or important notes appear like this.

Tips and tricks appear like this.