Nortel RLC Installation And Administration Manual page 312

Administration
PSTN Error Statistics field descriptions
The following table describes the information on the PSTN Error Statistics
screen:
Statistic
Channel Number
Receive Buffer
Allocation
Failures
Frame Length
Violations
CRC Errors
Unknown Receive
Errors
ITE Frame Length
Violations
ITE Transmitter
Underruns
ITE Receive Busy
Errors
286
Description
Identifies the channel that the statistics on that line apply
to.
Identifies the number of times since the statistics were
last reset that there was an error in the allocation of a
packet to the receive buffer.
Identifies the number of times since the statistics were
last reset that a frame contained too many packets.
Identifies the number of times since the statistics were
last reset that the cyclic redundancy check (CRC) bits did
not match.
The CRC errors that Trunk Protocol reports on the
Remote Gateway 9100 Series product are check
performed end-to-end at the High-level Data Link Control
(HDLC) framing level. This check includes the ISDN
framing errors as well as PSTN spans and clocking
issues. The CRC error count does not always indicate
that there are CRC errors on the physical line between
the RLC and the CO, or the host PBX and the CO.
However, the CRC error count is a good indication that
you need to investigate the physical line.
Identifies the number of times since the statistics were
last reset that a receive error that is not otherwise
classified in this display occurred.
Identifies the number of times since the statistics were
last reset that the ITE received an over-length frame.
Identifies the number of times since the statistics were
last reset that the ITE transmitter contained underruns.
Identifies the number of times since the statistics were
last reset that the ITE received busy errors.
RLC Installation and Administration Guide
Standard 4.0