Nortel Networks 553-3001-211 manual System disabled

NT6D80 MSDL card Page 403 of 894

System disabled

When the system disables the MSDL card (step 4 in Figure 84 on page 402), it continues to communicate and attempt maintenance procedures on the card. To stop all system communication with the card, enter DIS MSDL x to disable it (step 5 in Figure 84 on page 402). Otherwise, the system periodically tries to enable the card, attempting recovery during the midnight routines (step 3 in Figure 84 on page 402).

The system disables the MSDL if the card:

•exhibits an overload condition

•does not respond to system messages

•is removed

•resets itself

•encounters a fatal error

•is frequently system disabled and recovered

When an MSDL is system disabled, a substate indicates why the MSDL is disabled. The substates are:

•Not Responding The system cannot communicate with the MSDL.

•Self-TestingThe MSDL card is performing self-tests.

•Self-tests Passed The MSDL card successfully completed self-tests and the system is determining if download is required or the software downloading is complete.

•Self-tests Failed The MSDL card self-tests failed.

•Shared RAM Tests Failed The system failed to read/write to the MSDL shared RAM.

•Overload The system received an excessive number of messages within a specified time period.

•Reset Threshold The system detected more than four resets within 10 minutes.

•Fatal Error The MSDL card encountered a fatal condition from which it cannot recover.

Circuit Card Description and Installation