Preface This preface describes the conventions of this document and information on how to obtain other documentation. It also provides information on what's new in Cisco product documentation. Document Conventions , on page iii Related Documentation, on page iv Obtaining Documentation and Submitting a Service Request, on page v Document Conventions This document uses the following conventions: VLAN Configuration Guide, Cisco IOS XE 17.16.x (Catalyst 9300 Switches) Convention Description ^ or Ctrl Both the ^ symbol and Ctrl represent the Control (Ctrl) key on a keyboard. For example, the key combination ^D or Ctrl-D means that you hold down the Control key while you press the D key.
(Keys are indicated in capital letters but are not case sensitive.) bold font Commands and keywords and user-entered text appear in bold font. Italic font Document titles, new or emphasized terms, and arguments for which you supply values are in italic font. Courier font Terminal sessions and information the system displays appear in courier font. Bold Courier font Bold Courier font indicates text that the user must enter. [x] Elements in square brackets are optional. ... An ellipsis (three consecutive nonbolded periods without spaces) after a syntax element indicates that the element can be repeated. | A vertical line, called a pipe, indicates a choice within a set of keywords or arguments.
[x | y] Optional alternative keywords are grouped in brackets and separated by vertical bars. iii