PKT-BUS (Packet Bus)
Issue 4 May 2002
10-1269555-233-123
Maintenance/Test Circuit Pack Query Test (#572)
This test queries the Maintenance/Test Packet Bus port about the state of health
of the Packet Bus. If the Maintenance/Test circuit pack indicates that the Packet
Bus has faults, the test fails. The corresponding failure code describes the
severity, type, and number of faults. The test passes if the Packet Bus is fault-free.
NOTE:
A Maintenance/Test circuit pack is usually not present in a Standard system
unless the customer has purchased this circuit pack to use for ISDN-PRI
test calls, or to enhance the system’s ability to quickly recognize a Packet
Bus failure.
2060 ABORT The link on the Packet Bus that is being used to perform the test
has failed.
1. Retry the command at 1-minute intervals a maximum of 5
times.
2. If the test continues to abort, check for problems with the
Packet Control (look for PKT-CTRL error in the Error and
Alarm Logs).
2100 ABORT Maintenance could not allocate all of the necessary system
resources to perform this test.
2500 ABORT An internal operation failed; the test could not be completed.
1. Retry the command at 1-minute intervals a maximum of 5
times.
1 FAIL The Packet Control Bus Loop Around Test failed (parity errors
were detected from the test packet).
2 FAIL The Packet Control Bus Loop Around Test failed (the Packet
Control circuit pack could not bring up a loop around link on the
Packet Bus).
1. Refer to the “Packet Bus Fault Isolation Flowchart” section in
Chapter 9 to determine the cause of the test failures.
PASS No faults have been detected on the Packet Bus by the Packet
Control circuit pack. This indicates that the Packet Bus is
operating correctly.
Table 10-473. Test #571 Packet Control Bus Loop Around Test — Continued
Error
Code
Tes t
Result Description/Recommendation
Continued on next page
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