Cisco ESR10008 Hardware Installation Guide - Page 9

Preface Document Conventions For example, the prompt router> indicates that you should be at the user level, and the prompt router# indicates that you should be at the privileged level. Access to the privileged level usually requires a password. Refer to the related software configuration and reference documentation for additional information. • Commands and key names words are in bold text. • Arguments for which you supply values are in italic text. • Optional elements appear in square brackets [ ]. • Alternative but required keywords are grouped in braces { } and separated by vertical bars |. Examples use these conventions: • Terminal sessions and sample console window displays are in screen font. • Information you enter is in bold screen font. • Nonprinting characters, such as passwords, are in angle brackets < >. • Default responses to system prompts are in square brackets [ ]. • Exclamation points (!) at the beginning of a line indicate a comment line. Notes and Cautions Notes and Cautions contain important information that you should be aware of. Note Means reader take note. Notes contain helpful suggestions or references to materials not contained in this publication. Caution Means reader be careful. You are capable of doing something that might result in equipment damage or loss of data. Safety Warnings Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement. Note See the Regulatory Compliance and Safety Information for the Cisco 10000 Series Routers for a listing of translated safety warnings. OL-0659-13 Cisco 10008 Router Hardware Installation Guide ix