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TBRI-PT (ISDN Trunk-Side BRI Port)
Issue 1 June 2005 2297
Clear Error Counters Test (#270)
This test is nondestructive.
This test clears the various error counters associated with each TBRI-PT. This test passes if
maintenance software is able to successfully send the downlink messages; the test aborts
otherwise.
CRC Error Counter Test (#623)
This test is nondestructive.
This test reads the BRI port’s CRC error counters that are maintained on the BRI media module.
The Cyclic Redundancy Check (CRC) is a means of error detection used to determine the
integrity of data frame contents. The CRC error counter is incremented by the media module
when it detects a CRC error. The test passes if the value of the counter is 0 (that is, the error is
cleared). If the counter is non-zero, the test fails, and the value of the counter is displayed in the
Error Code field.
Table 822: TEST #270 Clear Error Counters
Error
Code
Test
Result
Description/ Recommendation
Any ABRT Maintenance could not send the downlink message.
PASS The message to clear the error counters of the TBRI-PT
maintenance object has been sent.
Table 823: TEST #623 CRC Error Counter Test
Error
Code
Test
Result
Description/ Recommendation
ANY FAIL This error occurs when a frame with a bad CRC is received over the
D-Channel by the BRI board. This error is reported on a per-port basis
when the counter goes over the threshold. This error is most likely due to a
problem with the wiring or interference on the wiring caused by a noise
source or no termination. It usually does not indicate a problem with the
media module.
PASS The CRC error counter was read correctly and has a value of 0.