Preface
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Cisco IOS XR Getting Started Guide for the Cisco XR 12000 Series Router
OL-24755-01
Conventions
This document uses the following conventions:
Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the
publication.
Tip Means the following information will help you solve a problem. The information in tips might not be
troubleshooting or an action, but contains useful information.
Caution Means reader be careful. In this situation, you might do something that could result in equipment
damage or loss of data.
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional
information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and
revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed
and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free
service and Cisco currently supports RSS version 2.0.
Convention Item
boldface font Commands and keywords
italic font Variable for which you supply values
screen font Displayed session and system information
boldface screen font Commands and keywords you enter in an
interactive environment
italic screen font Variables you enter in an interactive environment
boldface font Menu items and button names
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