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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
Chapter 2 Alarm Troubleshooting
2.7.217 SSM-SMC
The SSM Reserved (RES) For Network Synchronization Use condition occurs when the synchronization
message quality level is changed to RES.
Note SSM-RES is an informational condition. It does not require troubleshooting.
2.7.217 SSM-SMC
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: BITS, DS1, NE-SREF, OCN
The SSM SONET Minimum Clock (SMC) Traceable condition occurs when the synchronization
message quality level changes to SMC. The login node does not use the clock because the node cannot
use any reference beneath its internal level, which is ST3.
Note SSM-SMC is an informational condition. It does not require troubleshooting.
2.7.218 SSM-ST2
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: BITS, DS1, NE-SREF, OCN
The SSM Stratum 2 (ST2) Traceable condition occurs when the synchronization message quality level
is changed to ST2.
Note SSM-ST2 is an informational condition. It does not require troubleshooting.
2.7.219 SSM-ST3
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: BITS, DS1, NE-SREF, OCN
The SSM Stratum 3 (ST3) Traceable condition occurs when the synchronization message quality level
is changed to ST3.
Note SSM-ST3 is an informational condition. It does not require troubleshooting.
2.7.220 SSM-ST3E
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: BITS, DS1, NE-SREF, OCN
The SSM Stratum 3E (ST3E) Traceable condition indicates that the synchronization message quality
level is changed to ST3E from a lower level of synchronization. SSM-ST3E is a Generation 2 SSM and
is not used for Generation 1.