The Synchronization Switch to Primary Reference condition occurs when the NCS system switches to the
primary timing source (reference 1). The NCS system uses three ranked timing references. The timing references
are typically two BITS-level or line-level sources and an internal reference.
SWTOPRI is an informational condition and does not require troubleshooting.
Note
SWTOSEC
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
Logical Objects: EXT-SREF, NE-SREF
The Synchronization Switch to Secondary Reference condition occurs when the NCS system has switched to
a secondary timing source (reference 2).
Clear the SWTOSEC Condition
SUMMARY STEPS
1.
To clear the condition, clear alarms related to failures of the primary source, such as the
alarm.
DETAILED STEPS
To clear the condition, clear alarms related to failures of the primary source, such as the
alarm.
If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/c/en/us/support/index.html
for more information or call Cisco TAC (1 800 553-2447).
SWTOTHIRD
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
Logical Objects: EXT-SREF, NE-SREF
The Synchronization Switch to Third Reference condition occurs when the NCS system has switched to a
third timing source (reference 3).
Clear the SWTOTHIRD Condition
SUMMARY STEPS
1.
To clear the condition, clear alarms related to failures of the primary source, such as the
alarm or the
alarm.
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
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Alarm Troubleshooting
SWTOSEC
