Diagnostics and Troubleshooting
8-6
8000-A2-GB20-20
November 1997
Checking Alarms
If the Card Selection screen indicates that a Major or Minor Alarm is on a card,
follow the menu sequence
Diagnostics
→
Alarms
(D-B) to determine the cause of
the alarm.
NOTE:
If a DSL card does not appear on the Card Selection screen because the
MCC card can no longer communicate with it, the MCC card will generate a
major alarm. You should go to the MCC’s
Monitor
→
Card Status
→
Syslog
(A-A-C) and view the event on its system log.
Major Alarms
Use Table 8-3 to determine the appropriate action to take for each Major Alarm.
Table 8-3. Major Alarms (1 of 2)
Failure Type
Action
Selftest
failure:
1. Check the Selftest Results display by following the menu sequence:
Diagnostics
→
Selftest.
2. Do another Selftest (Reset) and check results.
– If the results are normal, the problem was transient. Log the
results.
– If the results are the same as the first selftest, the card should be
replaced. If only one port on a DSL card is bad, that port can be
disabled. You may continue to use the card until it is convenient
to replace it.
Processor
failure (Sanity
timer):
1. Check the Selftest Results display by following the menu sequence:
Diagnostics
→
Selftest.
2. Do another Selftest (Reset) and check results.
– If the results are normal, the problem was transient. Log the
results.
– If the results are the same as the first selftest, the card should be
replaced.
