2-99
Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
July 2010
Chapter 2 Alarm Troubleshooting
2.6.151 MS-EXC
The MS-DCC Termination Failure alarm occurs when the ONS 15600 SDH loses its data
communications channel. The DCC is three bytes, D1 through D3, in the SDH overhead. The bytes
convey information about Operation, Administration, Maintenance, and Provisioning (OAM&P). The
ONS 15600 SDH uses the DCC on the SDH section overhead to communicate network management
information.
Clear the MS-EOC Alarm
Step 1
Complete the
“Clear the EOC Alarm” procedure on page 2-42
Step 2
If the condition does not clear, log into the Cisco Technical Support Website at
http://www.cisco.com/techsupport for more information or log into
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml to obtain a directory of toll-free
Technical Support numbers for your country.
2.6.151 MS-EXC
Default Severity:Not Alarmed (NA), Non-Service-Affecting (NSA)
Logical Object: STMN
The Multiplex Section Excessive Errors condition occurs when the multiplex section overhead of the
STM1E object falls past the fail threshold set on the node.
Clear the MS-EXC Condition
Step 1
Determine the threshold. If adjustment is acceptable in site practices, adjust the threshold.
Using an optical test set, measure the input power level of the line and ensure that the level is within the
guidelines. For specific procedures to use the test set equipment, consult the manufacturer.
Step 2
Verify the input fiber cable connections to the reporting card.
Step 3
Clean the input fiber cable ends according to site practice.
Step 4
If the condition does not clear, log into the Cisco Technical Support Website at
http://www.cisco.com/techsupport for more information or log into
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml to obtain a directory of toll-free
Technical Support numbers for your country.
2.6.152 MS-RFI
Default Severity: Not Reported (NR), Non-Service-Affecting (NSA)
SDH Logical Objects: STMN
The MS Remote Fault Indication (RFI) condition indicates that there is an RFI occurring at the SDH
overhead multiplexing section level.
Summary of Contents for Cisco ONS 15600 SDH
Page 18: ...Contents xviii Cisco ONS 15600 SDH Troubleshooting Guide R8 0 July 2010 ...
Page 20: ...Figures xx Cisco ONS 15600 SDH Troubleshooting Guide R8 0 July 2010 ...
Page 30: ...xxx Cisco ONS 15600 SDH Troubleshooting Guide R8 0 July 2010 About this Guide ...
Page 306: ...4 50 Cisco ONS 15600 SDH Troubleshooting Guide R8 0 July 2010 Chapter 4 Error Messages ...
Page 318: ...Index IN 12 Cisco ONS 15600 SDH Troubleshooting Guide R8 0 July 2010 ...