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Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
July 2010
Chapter 2 Alarm Troubleshooting
2.6.115 LOCKOUT-REQ-RING
The Lockout Switch Request on Facility or Equipment condition occurs when a user initiates a lockout
switch request for an STM-N port in a 1+1 facility protection group. This can be accomplished by
locking traffic onto the working port with the Lock On command (thus locking it off the protect port),
or locking it off the protect port with the Lock Out command. In either case, the protect port will show
“Lockout of Protection,” and the Conditions window will show the LOCKOUT-REQ condition.
A lockout prevents protection switching. Clearing the lockout allows protection switching and clears the
LOCKOUT-REQ condition.
Clear the LOCKOUT-REQ Condition
Step 1
Complete the
“Clear a Card or Port Lock On or Lock Out Command” procedure on page 2-125
.
Step 2
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).
2.6.115 LOCKOUT-REQ-RING
Not Alarmed (NA), Non-Service-Affecting (NSA)
Logical Object: STMN
The Lockout Switch Request on Ring condition occurs when a user initiates a lockout switch request for
an STM-N card or a lockout switch request on the MS-SPRing ring level. A lockout prevents protection
switching. Clearing the lockout again allows protection switching and clears the LOCKOUT-REQ-RING
condition.
Clear the LOCKOUT-REQ-RING Condition
Step 1
Complete the
“Clear a MS-SPRing External Switching Command” procedure on page 2-130
Step 2
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).
2.6.116 LOF (BITS)
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
Logical Object: BITS
The Loss of Frame (BITS) alarm is Major (MJ) if there is no backup TSC card BITS source and
Minor (MN) if one of the TSC cards BITS sources fails. If one of the pair fails, a timing APS is activated
on the second source.
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