14-45
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 14 Alarm Troubleshooting
Alarm Procedures
The force switch request on facility or equipment (FORCED-REQ) alarm means a user entered the force
command on a span or card to force traffic from a working card or working span to a protection card or
protection span or vice versa. You do not need to clear this alarm if you want the force switch to remain
in place. To clear this alarm, clear the force command.
Procedure: Clear the FORCED-REQ on an OC-N Card
Step 1
Click the
Maintenance
tab.
Step 2
Click the
Protection
tab for a card or span switch.
Step 3
At
Operation
, click the drop-down arrow
.
Step 4
Choose
Clear
and click
Apply
.
14.4.59 FRNGSYNC
•
Major, Service-Affecting
The free-running synchronization mode (FRNGSYNC) alarm means the reporting ONS 15327 is in
free-run synchronization mode. External timing sources have been disabled and the node is using its
internal clock, or the ONS 15327 has lost its designated BITS timing source. After the 24-hour holdover
period expires, timing slips may begin to occur on an ONS 15327 relying on an internal clock.
Procedure: Clear the FRNGSYNC Alarm
Step 1
If the ONS 15327 is configured to operate from its own internal clock, disregard this alarm.
Step 2
If the ONS 15327 is configured to operate off an external timing source, verify that the BITS timing
source is valid. Common problems with a BITS timing source include reversed wiring and bad timing
cards.
Step 3
Find and troubleshoot alarms related to the failures of the primary and secondary reference sources, such
as SYNCPRI and SYNCSEC.
14.4.60 FSTSYNC
•
Minor, Non-Service-Affecting
A fast-start synchronization mode (FSTSYNC) alarm raises when the ONS 15327 is choosing a new
timing reference. The previous timing reference has failed. This alarm disappears after approximately
30 seconds.
Note
This is an informational alarm.
Summary of Contents for ONS 15327
Page 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Page 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Page 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Page 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...