PictureTel Concorde 4500, Administrator'S Manual, Page: 159 / 250

Using the Diagnostics Menus
7-5
The following table describes the current network channel statistics
for SG3 communications.
Table 7-2: SG3 Network Statistics
Statistic Description Interpretation
Checksum Errors The sum of video errors
that were not caused by an
error in the channels A large number of errors indicates a faulty
transmitting AP board at the far-end site
or a faulty receiving AP board at the near-
end site.
After the call, place the systems at each
site in local channel loopback mode. The
system with the checksum errors has the
faulty board.
Packet Dropouts The number of packets
with errors that were
discarded because they
included an uncorrectable
error or could not be
decoded High numbers indicate a transmission line
problem or, less frequently, a CSU
problem. If your system uses an external
CSU, the cabling to the CSU may be faulty.
Verify the numbers by running a near-end
local channel loopback test.
Packet Errors The sum of the
uncorrected packets for all
active channels Refer to the interpretation for
Uncorrected
Packets
.
Error Free Packets The number of packets
received from the far end
by each channel without
error This indicates that the transmission line
and the CSUs are valid.
Corrected Packets The number of packets
with errors that were
received from the far end
by each channel and were
corrected by the error-
correction software Small numbers for this statistic are
expected during normal operation.
High numbers indicate a transmission line
problem or, less frequently, a CSU
problem. If your system uses an external
CSU, the cabling to the CSU may be faulty.
Verify the numbers by running a near-end
local channel loopback test.