Cisco ONS 15310-MA Troubleshooting Manual page 53

Chapter 2 Alarm Troubleshooting
2.7.54 MS-EOC
The multiplex-section DCC (MS-DCC) Termination Failure alarm occurs when the
ONS 15310-MA SDH loses its MS-DCC termination. The MS-DCC consists of nine bytes, D4 through
D12, that convey information about OAM&P and network management information in the SDH
overhead.
Warning Invisible laser radiation could be emitted from the end of the unterminated fiber cable or connector.
Do not stare into the beam directly with optical instruments. Viewing the laser output with certain
optical instruments (for example, eye loupes, magnifiers, and microscopes) within a distance of
100 mm could pose an eye hazard. Statement 1056
Warning Use of controls, adjustments, or performing procedures other than those specified could result in
hazardous radiation exposure. Statement 1057
If a circuit shows an incomplete state when the EOC or MS-EOC alarm is raised, it occurs when the
Note
logical circuit is in place. The circuit is able to carry traffic when the DCC termination issue is resolved.
You do not need to delete the circuit when troubleshooting this alarm.
Clear the MS-EOC Alarm
Complete the
Step 1
If the alarm has not cleared, call Cisco TAC (1-800-553-2447).
Step 2
2.7.55 EQPT
An Equipment Failure alarm indicates that a hardware failure has occurred on the reporting card. If the
EQPT alarm occurs with a BKUPMEMP alarm, refer to the
BKUPMEMP procedure also clears the EQPT alarm.
Clear the EQPT Alarm
If traffic is active on the alarmed port, you might need to switch traffic away from it. See the
Step 1
"2.9.1 Protection Switching, Lock Initiation, and Clearing" section on page 2-146
traffic-switching procedures.
78-18663-01
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SDH Logical Object: STM
"Clear the EOC Alarm" procedure on page
Default Severity: Critical (CR), Service-Affecting (SA)
SDH Logical Object: EQPT
DWDM Logical Object: PPM
2-51.
"BKUPMEMP" alarm on page
Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
Alarm Procedures
2-32. The
for commonly used
2-53