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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.65 CONTBUS-DISABLED
Clear the CONTBUS-B-18 Alarm
Step 1 Complete the “Reset an Active TCC2/TCC2P Card and Activate the Standby Card” procedure on
page 2-270 to make the Slot 7 TCC2/TCC2P active.
Step 2 Wait approximately 10 minutes for the Slot 11 TCC2/TCC2P to reset as the standby TCC2/TCC2P.
Verify that the ACT/SBY LED is correctly illuminated before proceeding to the next step. A green
ACT/SBY LED indicates an active card. An amber ACT/SBY LED indicates a standby card.
Step 3 Position the cursor over the Slot 7 TCC2/TCC2P and complete the “Reset an Active TCC2/TCC2P Card
and Activate the Standby Card” procedure on page 2-270 to return the Slot 11 TCC2/TCC2P to the active
state.
Step 4 If the reset card has not rebooted successfully, or the alarm has not cleared, call Cisco TAC
(1-800-553-2447). If the Cisco TAC technician tells you to reseat the card, complete the “Remove and
Reinsert (Reseat) the Standby TCC2/TCC2P Card” procedure on page 2-272. If the Cisco TAC
technician tells you to remove the card and reinstall a new one, follow the “Physically Replace a Traffic
Card” procedure on page 2-273.
2.7.65 CONTBUS-DISABLED
Default Severity: Critical (CR), Service-Affecting (SA)
SONET Logical Object: EQPT
The CONTBUS-DISABLED alarm is a function of the enhanced cell bus verification feature. This alarm
occurs when a defective card is installed in the shelf assembly or when a card already installed in the
shelf assembly becomes defective (that is, the card fails the enhanced cell bus verification test). The
alarm persists as long as the defective card remains in the chassis. When the card is removed,
CONTBUS-DISABLED will remain raised for a one-minute wait time. This wait time is designed as a
guard period so that the system can distinguish this outage from a briefer card reset communication
outage.
If no card is reinserted into the original slot during the wait time, the alarm clears. After this time, a
different, nondefective card (not the original card) should be inserted.
When CONTBUS-DISABLED is raised, no message-oriented communication is allowed to or from this
slot to the TCC2/TCC2P (thus avoiding node communication failure).
Caution CONTBUS-DISABLED clears only when the faulty card is removed for one minute. If any card at all is
reinserted before the one-minute guard period expires, the alarm does not clear.
CONTBUS-DISABLED overrides the “IMPROPRMVL” alarm on page 2-127 during the one-minute
wait period, but afterward IMPROPRMVL can be raised because it is no longer suppressed.
IMPROPRMVL is raised after CONTBUS-DISABLED clears if the card is in the node database. If
CONTBUS-DISABLED has cleared but IMPROPRMVL is still active, inserting a card will clear the
IMPROPRMVL alarm.
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