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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.171 INC-ISD
2.7.171 INC-ISD
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: DS3
The DS-3 Idle condition indicates that the DS-3 card is receiving an idle signal, meaning that the payload
of the signal contains a repeating pattern of bits. The INC-ISD condition occurs when the transmitting
port has an OOS-MA,MT service state. It is resolved when the OOS-MA,MT state ends.
Note INC-ISD is a condition and not an alarm. It is for information only and does not require troubleshooting.
2.7.172 INHSWPR
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: EQPT
The Inhibit Switch To Protect Request on Equipment condition occurs on traffic cards when the ability
to switch to protect has been disabled. If the card is part of a 1:1 or 1+1 protection scheme, traffic
remains locked onto the working system. If the card is part of a 1:N protection scheme, traffic can be
switched between working cards when the switch to protect is disabled.
Clear the INHSWPR Condition
Step 1 If the condition is raised against a 1+1 port, complete the “Initiate a 1+1 Manual Switch Command”
section on page 2-262.
Step 2 If the condition is raised against a 1:1 card, complete the “Initiate a 1:1 Card Switch Command”
procedure on page 2-265 to switch it back.
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.
2.7.173 INHSWWKG
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Object: EQPT
The Inhibit Switch To Working Request on Equipment condition occurs on traffic cards when the ability
to switch to working has been disabled. If the card is part of a 1:1 or 1+1 protection scheme, traffic
remains locked onto the protect system. If the card is part of a 1:N protection scheme, traffic can be
switched between protect cards when the switch to working is disabled.
Clear the INHSWWKG Condition
Step 1 If the condition is raised against a 1+1 port, complete the “Initiate a 1+1 Manual Switch Command”
section on page 2-262.
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