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Cisco IOS XR Troubleshooting Guide for the Cisco CRS-1 Router
OL-21483-02
CONTENTS
Preface vii
Changes to This Document vii
Obtaining Documentation and Submitting a Service Request viii
CHAPTER
1 General Troubleshooting 1-1
Troubleshooting Techniques and Approaches 1-1
Documenting the Network 1-2
Verifying and Troubleshooting CLI Access 1-2
General CLI Access Information 1-2
User Access Privileges 1-3
CLI Access Through a Console Port 1-3
CLI Access Through a Terminal Server 1-3
CLI Access Through the Management Ethernet Interface 1-4
Basic Cisco IOS XR Verification and Troubleshooting Tools 1-7
man Command 1-7
describe Command 1-9
show platform Command 1-10
top Command 1-10
show context Command 1-11
show users Command 1-13
Verifying the System 1-13
Validating and Troubleshooting Cisco IOS XR Software Package Installation 1-27
Verifying the Software Version 1-27
Validating the Installation 1-30
install verify Command 1-30
show install active Command 1-32
show install committed Command 1-33
Validating and Troubleshooting Cisco IOS XR Software Configuration 1-35
Local and Global Configurations 1-35
Collecting Configuration Information 1-37
Verifying the Running Configuration 1-38
Using the show configuration failed Command 1-47
Startup Failed Configuration 1-47
Commit Configuration Failed 1-48