Cisco ONS 15454 Troubleshooting Manual page 347

Chapter 2 Alarm Troubleshooting
The Log Buffer Overflow alarm indicates that the CTC per-NE queue of incoming alarm, event, or
updates, which has a capacity of 5000 entries, has overflowed. This happens only very rarely; if the
alarm does occur, you must restart the CTC session. If this alarm occurs, it is likely that some updates
are missing.
Clear the LOGBUFROVFL Alarm
Step 1 Restart the CTC session.
If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
Step 2
for more information or call TAC (1-800-553-2447).
2.7.210 LO-LASERBIAS
The Equipment Low Transmit Laser Bias Current alarm is raised against the TXP and MXP card laser
performance. The alarm indicates that the card laser has reached the minimum laser bias tolerance.
If the LO-LASERBIAS alarm threshold is set at 0 percent (the default), the laser's usability has ended.
If the threshold is set at 5 percent to10 percent, the card is still usable for several weeks or months before
you need to replace it.
For more information about provisioning MXP or TXP PPMs, refer to the "Provision Transponders and
Note
Muxponders" chapter of the Cisco ONS 15454 DWDM Procedure Guide. For more information about
the cards themselves, refer to the Cisco ONS 15454 DWDM Reference Manual.
Clear the LO-LASERBIAS Alarm
Step 1 Complete the
Step 2 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.
2.7.211 LO-LASERTEMP
November 2009
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SONET Logical Objects: EQPT, OCN
DWDM Logical Object: PPM
"Physically Replace a Traffic Card" procedure on page
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SONET Logical Objects: EQPT, OCN
DWDM Logical Object: PPM
2-273.
Cisco ONS 15454 Troubleshooting Guide, R8.5
2.7.210 LO-LASERBIAS
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