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Cisco IOS XR Getting Started Guide for the Cisco XR 12000 Series Router
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Chapter 1 Introduction to Cisco IOS XR Software
Where to Go Next
Where to Go Next
If you have logged into the router or multishelf system, you can perform the general router configuration
as described in Configuring General Router Features.
If the router is prompting you to enter a root-system username, bring up the router. For more information,
see Bringing Up the Cisco IOS XR Software on a Standalone Router.