Reader Alert Conventions This document may use the following conventions for reader alerts: Means reader take note . Notes contain helpful suggestions or references to material not covered in the manual. Note Means the following information will help you solve a problem. Tip Means reader be careful . In this situation, you might do something that could result in equipment damage or loss of data. Caution Means the described action saves time. You can save time by performing the action described in the paragraph. Timesaver Take note of the following general safety warnings:
Preface Preface Convention Description {x | y} Required alternative keywords are grouped in braces and separated by vertical bars. [x {y | z}] Nested set of square brackets or braces indicate optional or required choices within optional or required elements. Braces and a vertical bar within square brackets indicate a required choice within an optional element. string A nonquoted set of characters. Do not use quotation marks around the string or the string will include the quotation marks. Nonprinting characters such as passwords are in angle brackets. [ ] Default responses to system prompts are in square brackets.
!, # An exclamation point (!) or a pound sign (#) at the beginning of a line of code indicates a comment line. IP Routing Configuration Guide, Cisco IOS XE 17.16.x (Catalyst 9300 Switches) iv