DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1123M/T-PKT (Maintenance/Test Packet Bus Port)
9
Clear Error Counters (#270)
This test is not an actual test in the strict sense of the word. Many circuit packs
have counters in the Angel firmware. The circuit pack’s Angel continuously runs
port self-tests on idle ports and keeps track of any errors it detects by
incrementing a firmware counter. When the counter value reaches some preset
threshold, the Angel sends a single CCMS (Control Channel Message Set) error
message uplink to the SPE. No more error messages of that type are sent uplink
until the SPE sends a downlink message to clear the counter. This strategy keeps
a failed port/circuit pack from flooding the SPE with a continuous string of
identical error messages). This test is used to clear the counter, so that if the port
continues to fail during or after SPE-demanded testing, the Angel will send a
message to indicate that fact.
This test is only used to send a downlink message to the Angel on the
Maintenance/Test circuit pack. Since the Angel normally provides no uplink
response to this message, this test should never abort or fail.
Packet Bus Port Health Inquiry Test (#567)
This test verifies that the Packet Bus fault detection maintenance function of the
M/T-PKT is functioning properly. This is done by having the M/T-PKT perform a
self-test. If this self-test passes, then the Packet Bus Port Health Inquiry Test
passes. If the self-test fails, or the SPE cannot communicate with the M/T-PKT,
then the test fails
Table 9-446. TEST #270 Clear Error Counters
Error
Code Test Result Description/ Recommendation
Any ABORT This test should never abort.
Any FAIL This test should never fail.
1. Retry the command at 1-minute intervals a maximum of 5 times.
2. If the test continues to fail, escalate the problem.
PASS The message to clear the Maintenance/Test circuit pack’s counter for
Background Maintenance Failures has been sent.
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