CONTENTS
Introduction ?
Preface xxxvii
PREFACE
Document Objectives xxxvii
Audience xxxvii
Document Organization xxxviii
Document Conventions xxxviii
Related Documentation xliv
Obtaining Optical Networking Information xlv
Where to Find Safety and Warning Information xlv
Communications, Services, and Additional Information xlv
General Troubleshooting 1
CHAPTER 1
Loopback Description 1
Facility Loopbacks 2
General Behavior 2
Card Behavior 3
Terminal Loopbacks 5
General Behavior 5
Card Behavior 6
Troubleshooting MXP, TXP, XP, or ADM-10G Circuit Paths With Loopbacks 7
Perform a Facility Loopback on a Source-Node MXP or TXP Port 8
Create the Facility Loopback on the Source-Node MXP, TXP, XP or ADM-10G Port 9
Test and Clear the MXP, TXP, XP or ADM-10G Facility Loopback Circuit 10
Test the MXP, TXP, XP or ADM-10G Card 11
Perform a Terminal Loopback on a Source-Node MXP, TXP, XP, or ADM-10G Port 12
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
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