This guide introduces the Cisco ASR 9000 Series Aggregation Services Router that runs Cisco IOS XR Software. This guide also describes administration, maintenance, and troubleshooting tasks that may be required after initially starting the router.
Commands and keywords you enter in an interactive environment
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Variables you enter in an interactive environment
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Menu items and button names
Option > Network Preferences
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.
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:
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