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Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
78-18663-01
Chapter 2 Alarm Troubleshooting
Alarm Procedures
Step 2 Complete the appropriate procedure in the “2.9.3 Physical Card Reseating and Replacement” section on
page 2-153 for the reporting card.
Step 3 If the alarm does not clear, log into the Technical Support Website at
http://www.cisco.com/cisco/web/support/index.html for more information or call Cisco TAC
(1-800-553-2447).
Step 4 If traffic was manually switched in a 1+1/LMSP protection group, revert traffic to the original port by
completing the “Clear a 1+1/LMSP Force or Manual Switch Command” procedure on page 2-147. If
traffic was manually switched in a path protection configration, revert traffic to the original path by
completing the “Clear an External Switching Command on a Path Protection Span” procedure on
page 2-151.
2.7.37 CONTBUS-DISABLED
Default Severity: Critical (CR), Service-Affecting (SA)
SDH Logical Object: EQPT
The CONTBUS-DISABLED alarm occurs when an Ethernet card is defective upon insertion into the
chassis or when a card that is already present in the chassis 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
Ethernet slot to the controller card (15310-MA SDH CTX or ONS 15310-MA SDH), 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 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.
For more information about Ethernet cards, refer to the Cisco ONS 15310-CL and Cisco ONS 15310-MA
Ethernet Card Software Feature and Configuration Guide.
Clear the CONTBUS-DISABLED Alarm
Step 1 If the IMPROPRMVL alarm is raised, complete the “Physically Replace a Card” procedure on
page 2-153. (For general information about card installation, refer to the “Install Hardware” chapter in
the Cisco ONS15310-MA SDH Procedure Guide.)
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