Cisco Router Cisco IOS XR - Page 8

Contents
viii
Cisco IOS XR Getting Started Guide
OL-10957-02
Using the ping Command 7-3
Using the traceroute Command 7-4
Using debug Commands 7-5
Configuration Error Messages 7-7
Configuration Failures During a Commit Operation 7-8
Configuration Errors at Startup 7-8
Memory Warnings in Configuration Sessions 7-9
Understanding Low-Memory Warnings in Configuration Sessions 7-9
Displaying System Memory Information 7-10
Removing Configurations to Resolve Low-Memory Warnings 7-11
Contacting TAC for Additional Assistance 7-13
Interfaces Not Coming Up 7-13
Verifying the System Interfaces 7-13
APPENDIX A Understanding Regular Expressions, Special Characters, and Patterns A-1
Regular Expressions A-1
Special Characters A-2
Character Pattern Ranges A-2
Multiple-Character Patterns A-3
Complex Regular Expressions Using Multipliers A-3
Pattern Alternation A-4
Anchor Characters A-4
Underscore Wildcard A-4
Parentheses Used for Pattern Recall A-4
G LOSSARY
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