Cisco ONS 15454 - 2.7.403 SWTOPRI; 2.7.404 SWTOSEC; Clear the SWTOSEC Condition; 2.7.405 SWTOTHIRD

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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.403 SWTOPRI
Step 5 If the alarm 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 in order to report a Service-Affecting (SA)
problem.
2.7.403 SWTOPRI
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: EXT-SREF, NE-SREF
The Synchronization Switch to Primary Reference condition occurs when the ONS 15454 switches to
the primary timing source (reference 1). The ONS 15454 uses three ranked timing references. The timing
references are typically two BITS-level or line-level sources and an internal reference.
Note SWTOPRI is an informational condition and does not require troubleshooting.
2.7.404 SWTOSEC
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: EXT-SREF, NE-SREF
The Synchronization Switch to Secondary Reference condition occurs when the ONS 15454 has
switched to a secondary timing source (reference 2).
Clear the SWTOSEC Condition
Step 1 To clear the condition, clear alarms related to failures of the primary source, such as the “SYNCPRI”
alarm on page 2-241.
Step 2 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.
2.7.405 SWTOTHIRD
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: EXT-SREF, NE-SREF
The Synchronization Switch to Third Reference condition occurs when the ONS 15454 has switched to
a third timing source (reference 3).
Clear the SWTOTHIRD Condition
Step 1 To clear the condition, clear alarms related to failures of the primary source, such as the “SYNCPRI”
alarm on page 2-241 or the “SYNCSEC” alarm on page 2-242.