Cisco ONS 15310-MA Troubleshooting Manual page 134

Alarm Procedures
Clear the SWTOTHIRD Condition
To clear the condition, clear alarms related to failures of the primary source, such as the
Step 1
alarm on page 2-134
If the condition does not clear, log into the Technical Support Website at
Step 2
http://www.cisco.com/cisco/web/support/index.html for more information or call Cisco TAC
(1-800-553-2447).
2.7.216 SYNC-FREQ
The Synchronization Reference Frequency Out Of Bounds condition is reported against any reference
that is out of the bounds for valid references. The login node fails the reference and chooses another
internal or external reference to use.
Clear the SYNC-FREQ Condition
Use an optical test set to verify the timing frequency of the line or BITS timing source and ensure that
Step 1
it falls within the proper frequency. For specific procedures to use the test set equipment, consult the
manufacturer. For BITS, the proper timing frequency range is approximately –15 PPM to 15 PPM. For
optical line timing, the proper frequency range is approximately –16 PPM to 16 PPM.
If the SYNC-FREQ condition does not clear, log into the Technical Support Website at
Step 2
http://www.cisco.com/cisco/web/support/index.html for more information or call Cisco TAC
(1-800-553-2447).
2.7.217 SYNCPRI
A Loss of Timing on Primary Reference alarm occurs when the ONS 15310-MA SDH loses 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. If SYNCPRI occurs, the system
should switch to its secondary timing source (reference 2). Switching to a secondary timing source also
triggers the
Clear the SYNCPRI Alarm
Step 1 In node view, click the Provisioning > Timing > General tabs.
Step 2 Verify the current configuration for REF-1 of the NE Reference.
Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
2-134
or the "SYNCSEC" alarm on page
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SDH Logical Objects: BITS, E1, STM
Default Severity: Minor (MN), Non-Service-Affecting (NSA) for EXT-SREF; Major (MJ),
Service-Affecting (SA) for NE-SREF
SDH Logical Objects: EXT-SREF, NE-SREF
"SWTOSEC" alarm on page
2-135.
2-133.
Chapter 2 Alarm Troubleshooting
"SYNCPRI"
78-18663-01