Cisco ONS 15310-MA Troubleshooting Manual page 57

Chapter 2 Alarm Troubleshooting
If the alarm does not clear, log into the Technical Support Website at
Step 3
http://www.cisco.com/cisco/web/support/index.html for more information or call Cisco TAC
(1-800-553-2447).
2.7.60 EXT
A Failure Detected External to the NE alarm occurs because an environmental alarm is present. For
example, a door could be open or flooding could have occurred.
Clear the EXT Alarm
Follow your standard operating procedure to remedy environmental conditions that cause alarms. The
Step 1
alarm clears when the situation is remedied.
If the alarm 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).
2.7.61 FAILTOSW
The Failure to Switch to Protection Facility condition occurs when a working or protect optical facility
switches to its companion port by using a MANUAL command. For example, if you attempt to manually
switch traffic from an unused protect port to an in-service working port, the switch will fail (because
traffic is already present on the working port) and you will see the FAILTOSW condition.
Clear the FAILTOSW Condition
Look up and troubleshoot the higher-priority alarm. Clearing the higher-priority condition frees the port
Step 1
and clears the FAILTOSW.
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).
2.7.62 FAILTOSW-HO
78-18663-01
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
SDH Logical Object: ENVALRM
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SDH Logical Object: STM
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
Alarm Procedures
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