Cisco ONS 15454 - 2.7.406 SYNC-FREQ; Clear the SYNC-FREQ Condition; 2.7.407 SYNCLOSS

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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.406 SYNC-FREQ
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.
2.7.406 SYNC-FREQ
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: BITS, DS1, E1, OCN
DWDM Logical Object: TRUNK
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
Step 1 Use an optical test set to verify the timing frequency of the line or BITS timing source and ensure that
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.
Step 2 If the reference source frequency is not outside of bounds, complete the “Physically Replace a Traffic
Card” procedure on page 2-273 for the TCC2/TCC2P.
Note It takes up to 30 minutes for the TCC2/TCC2P to transfer the system software to the newly
installed TCC2/TCC2P. Software transfer occurs in instances where different software versions
exist on the two cards. When the transfer completes, the active TCC2/TCC2P reboots and goes
into standby mode after approximately three minutes.
Step 3 If the SYNC-FREQ condition continues to report after replacing the TCC2/TCC2P, log into the
Technical Support Website at http://www.cisco.com/techsupport for more information or call Cisco TAC
1 800 553-2447.
2.7.407 SYNCLOSS
Default Severity: Major (MJ), Service-Affecting (SA)
SONET Logical Object: FCMR
DWDM Logical Objects: FC, GE, ISC, TRUNK
The Loss of Synchronization on Data Interface alarm is raised on FC_MR-4 client ports and MXP cards
client or trunk ports when there is a loss of signal synchronization on the port. This alarm is demoted by
the SIGLOSS alarm.