Indication
Convention
Required alternative keywords are grouped in braces
and separated by vertical bars.
{x | y | z }
Optional alternative keywords are grouped in brackets
and separated by vertical bars.
[ x | y | z ]
A nonquoted set of characters. Do not use quotation
marks around the string or the string will include the
quotation marks.
string
Terminal sessions and information the system displays
appear in courier font.
courier font
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.
!, #
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
. The tips information might not be
troubleshooting or even an action, but could be useful information, similar to a Timesaver.
Tip
Means
reader be careful
. In this situation, you might perform an action 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
Means
reader be warned
. In this situation, you might perform an action that could result in bodily injury.
Warning
Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation
Guide
xi
Preface
Document Conventions