Cisco CTX2500 User Manual

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Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
78-18663-01
Chapter 2 Alarm Troubleshooting
Alarm Procedures
Step 3 If the alarm does not clear, log into the Technical Support Website at
http://www.cisco.com/cisco/web/support/index.html for more information or call Cisco TAC
(1-800-553-2447) in order to report a Service-Affecting (SA) problem.
2.7.213 SWTOPRI
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SDH Logical Objects: EXT-SREF, NE-SREF
The Synchronization Switch to Primary Reference condition occurs when the ONS 15310-MA SDH
switches to the primary timing source (reference 1). The system 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. It does not require troubleshooting.
2.7.214 SWTOSEC
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SDH Logical Objects: EXT-SREF, NE-SREF
The Synchronization Switch to Secondary Reference condition occurs when the ONS 15310-MA SDH
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 2-134.
Step 2 If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/cisco/web/support/index.html for more information or call Cisco TAC
(1-800-553-2447).
2.7.215 SWTOTHIRD
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SDH Logical Objects: EXT-SREF, NE-SREF
The Synchronization Switch to Third Reference condition occurs when the ONS 15310-MA SDH has
switched to a third timing source (reference 3).

Cisco CTX2500 Specifications

General

Brand	Cisco
Model	CTX2500
Category	Network Card
Language	English