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2.6.57 FAILTOSW-HO
The Failure to Switch to Protection Facility condition occurs when a working or protect electrical 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 card
Step 1
and clears the FAILTOSW.
If the condition does not clear, replace the working electrical (traffic) card that is reporting the higher
Step 2
priority alarm by following the correct replacement procedure in the
Resetting, and Replacement" procedure on page
protect card and not reporting FAILTOSW.
Replacing the working electrical card that is reporting the higher-priority alarm allows traffic to revert
to the working slot and the card reporting the FAILTOSW to switch to the protect card.
Note
Note
Step 3
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).
2.6.57 FAILTOSW-HO
The High-Order Path Failure to Switch to Protection condition occurs when a high-order path circuit
fails to switch to the working or protect electrical circuit using the MANUAL command.
Clear the FAILTOSW-HO Condition
Complete the
Step 1
Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
2-52
If an ONS 15600 SDH traffic (STM-N) card is implicated and you are able to continue using the
traffic card with one port out of service, perform a bridge and roll to move the port traffic to a
free port; refer to the "Manage Circuits" chapter in the Cisco ONS 15600 SDH Procedure Guide
for instructions. Label the bad port, and place it out of service until such time as the card can be
replaced.
When you replace a card with the identical type of card, you do not need to make any changes
to the database.
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SDH Logical Objects: VCMON-HP
"Clear the FAILTOSW Condition" procedure on page
"2.8.4 Physical Card Reseating,
2-133. This card is the working electrical card using the
2-52.
Chapter 2 Alarm Troubleshooting
July 2010
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Table of Contents
Troubleshooting
