FAILTOSW-PATH
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
Logical Object: STSMON, VT-MON
The Fail to Switch to Protection Path condition occurs when the working circuit does not switch to the
protection circuit on a path protection configuration. Common causes of the FAILTOSW-PATH alarm include
a missing or defective protect port, a lockout set on one of the path protection nodes, or path-level alarms that
would cause a path protection switch to fail including the
condition, the
alarm, the
condition, the
condition, and the
alarm.
The
condition, or the
condition can also occur on the failed path.
Clear the FAILTOSW-PATH Condition in a Path Protection Configuration
SUMMARY STEPS
1.
Look up and clear the higher-priority alarm. Clearing this alarm frees the standby card and clears the
FAILTOSW-PATH condition. If the
condition, the
alarm, the
alarm, the
condition, the
condition, the
condition, or the
condition are also occurring on the reporting port,
complete the applicable alarm clearing procedure.
2.
If the condition does not clear, replace the active OC-N card that is reporting the higher-priority alarm.
Complete the
Physically Replace a Card, on page 453
procedure. Replacing the active OC-N card that is
reporting the higher-priority alarm allows traffic to revert to the active slot. Reverting frees the standby
card, which can then take over traffic from the card reporting the lower-priority alarm and the
FAILTOSW-PATH condition.
DETAILED STEPS
Step 1
Look up and clear the higher-priority alarm. Clearing this alarm frees the standby card and clears the FAILTOSW-PATH
condition. If the
condition, the
alarm, the
alarm, the
condition, the
condition, the
condition, or the
condition are also occurring on the reporting port, complete the applicable alarm clearing procedure.
A higher-priority alarm is an alarm raised on the working electrical card using the 1:N card protection group.
The working DS-N card is reporting an alarm but not reporting a FAILTOSW condition.
Note
Step 2
If the condition does not clear, replace the active OC-N card that is reporting the higher-priority alarm. Complete the
Physically Replace a Card, on page 453
procedure. Replacing the active OC-N card that is reporting the higher-priority
alarm allows traffic to revert to the active slot. Reverting frees the standby card, which can then take over traffic from
the card reporting the lower-priority alarm and the FAILTOSW-PATH condition.
If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/c/en/us/support/index.html
for more information or call Cisco TAC (1 800 553-2447).
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
192
Alarm Troubleshooting
FAILTOSW-PATH