Cisco ONS 15454 Troubleshooting Manual page 3

Preface
General Troubleshooting
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C H A P T E R
November 2009
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Revision History
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Document Objectives
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Audience
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Related Documentation
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Document Conventions
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Obtaining Optical Networking Information
Where to Find Safety and Warning Information
Cisco Optical Networking Product Documentation CD-ROM
Obtaining Documentation and Submitting a Service Request
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1.1 Troubleshooting Circuit Paths with Loopbacks
1.1.1 Facility Loopbacks
1.1.1.1 General Behavior
1.1.1.2 ONS 15454 Card Behavior
1.1.2 Terminal Loopbacks
1.1.2.1 General Behavior
1.1.2.2 ONS 15454 Card Behavior
1.1.3 Hairpin Circuits
1.1.4 Cross-Connect Loopbacks
1.2 Troubleshooting Electrical Circuit Paths With Loopbacks
1.2.1 Perform a Facility Loopback on a Source Electrical Port (West to East)
Create the Facility Loopback on the Source DS-1, DS-3, DS3N-12, DS3i-N-12, or EC1 Port
Test and Clear the DS-3, DS3N-12, DS3i-N-12, or EC1 Port Facility Loopback Circuit
Create the Facility Loopback on the Source DS3E or DS3XM Port
Test and Clear the DS3E or DS3XM Port Facility Loopback Circuit
Test the Electrical Cabling
Test the Electrical Card
Test the EIA
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1.2.2 Perform a Hairpin Test on a Source-Node Electrical Port (West to East)
Create the Hairpin Circuit on the Source-Node Electrical Port
Test and Delete the Electrical Port Hairpin Circuit
Test the Standby Cross-Connect Card
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Cisco ONS 15454 Troubleshooting Guide, R8.5
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