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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
Chapter 2 Alarm Troubleshooting
2.7.234 SYNCTHIRD
2.7.234 SYNCTHIRD
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SONET Logical Objects: EXT-SREF, NE-SREF
A Loss of Timing on Third Reference alarm occurs when the ONS 15310-CL or ONS 15310-MA loses
the third timing source (reference 3). If SYNCTHIRD occurs and the system uses an internal reference
for source three, the 15310-CL-CTX card or CTX2500 card could have failed. The system often reports
either the “FRNGSYNC” condition on page 2-66 or the “HLDOVRSYNC” condition on page 2-73 after
a SYNCTHIRD alarm.
Clear the SYNCTHIRD Alarm
Step 1 In node view, click the Provisioning > Timing > General tabs.
Step 2 Verify that the current configuration of REF-3 for the NE Reference. For more information about
references, refer to the “Turn Up Node” chapter in the Cisco ONS 15310-CL and Cisco ONS 15310-MA
Procedure Guide.
Step 3 If the third timing source is a BITS input, complete the “Clear the LOS (BITS) Alarm” procedure on
page 2-93.
Step 4 If the third timing source is an incoming port on the ONS 15310-CL or ONS 15310-MA, complete the
“Clear the LOS (OCN) Alarm” procedure on page 2-99.
Step 5 If the third timing source uses internal timing, complete the “Soft- or Hard-Reset a Controller Card”
procedure on page 2-153.
Step 6 If the reset card has not rebooted successfully, or the alarm has not cleared, call Cisco TAC
(1-800-553-2447).
2.7.235 SYSBOOT
Default Severity: Major (MJ), Service-Affecting (SA)
SONET Logical Object: NE
The System Reboot alarm indicates that new software is booting on the 15310-CL-CTX or CTX2500
card. No action is required. The alarm clears when all cards finish rebooting the new software. The
reboot takes up to 30 minutes.
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.
Note SYSBOOT is an informational alarm. It only requires troubleshooting if it does not clear.
2.7.236 TIM
Default Severity: Critical (CR), Service-Affecting (SA)