2-113
Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
July 2010
Chapter 2 Alarm Troubleshooting
2.6.180 SWTOPRI
The SSM Synchronization Traceability Unknown condition occurs when the reporting node is timed to
a reference that does not support SSM, but the ONS 15600 SDH has SSM support enabled. SSM-STU
can also be raised if the timing source is sending out SSM messages but SSM is not enabled on the
ONS 15600 SDH.
Clear the SSM-STU Condition
Step 1
Click the node view
Provisioning > Timing > BITS Facilities
tabs.
Step 2
If the Sync. Messaging Enabled check box is checked, click the box to deselect it.
Step 3
If the Sync. Messaging Enabled check box is unchecked, click the box to select it.
Step 4
Click
Apply
.
Step 5
If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call Cisco TAC (1 800 553-2447).
2.6.180 SWTOPRI
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
Logical Objects: EXT-SREF, NE-SREF
The Synchronization Switched to Primary Reference condition occurs when the ONS 15600 SDH
switches to the primary timing source (reference 1). The ONS 15600 SDH uses three ranked timing
references. The timing references are typically two BITS-level or line-level sources and an internal
reference.
2.6.181 SWTOSEC
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
Logical Objects: EXT-SREF, NE-SREF
The Synchronization Switched to Second Reference condition occurs when the ONS 15600 SDH has
switched to a second timing source (reference 2). To clear the SWTOSEC condition, complete the
the SYNCPRI Alarm” procedure on page 2-115
2.6.182 SWTOTHIRD
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
Logical Objects: EXT-SREF, NE-SREF
The Synchronization Switched to Third Reference condition occurs when the ONS 15600 SDH has
switched to a third timing source (reference 3). To clear the SWTOTHIRD condition, complete the
Содержание Cisco ONS 15600 SDH
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