Wilan LIBRA 5800 AP, User Manual

Page: 85 / 156

MAC Layer Statistics
June 2003 Rev 0 85
OFDM Decoder Statistics
OFDM Decoder
Statistics
Describes Reed Solomon decoder statistics
Total Superframes
Decoded
Number of superframes decoded by the Reed Solomon decoder
Ethernet Frames
For Local
Number of Ethernet frames, destined for the unit, that went through
the Reed Solomon decoder without uncorrectable errors
Uncorrected
Superframes
Number of superframes received by the Reed Solomon decoder that
have uncorrected errors
Corrected Bytes
Number of bytes through the Reed Solomon decoder that have been
corrected
Total Words
Decoded (x1E6)
Number of words received by the Reed Solomon decoder that have
been decoded
OFDM Channel Statistics
RSSI (dBm)
Received Signal Strength Indicator in dBm
Null Depth (dB)
Difference in dB between the lowest signal sub carrier and the
highest signal sub carrier. This value is an indication of the level of
multi-path signals present in the link.
Fade Margin (dB)
Signal-to-noise ratio of the signal; value in dB above the sensitivity
threshold.
Approximated BERs
FEC BER (x1E-9)
Bit error rate after forward error correction, multiplied by 10
-9
BER (x1E-9)
Bit error rate before Reed Solomon coding, multiplied by 10
-9
LFEC BER
Lifetime FEC BER multiplied by 10
-9
. Cumulative from the last reboot
LBER
Lifetime BER, multiplied by 10
-9
. Cumulative from the last reboot
Ethernet Transmit Statistics
Ethernet Transmit
Statistics
Describes the data sent from the Libra UnitLibra Unit to the Ethernet
Total Frames
Transmitted
Number of frames sent to the wire from the Libra UnitLibra Unit
Frames From Local
Host
Number of Ethernet frames transmitted to the 10/100 Base-T
connection which originated from the unit
Frames Dropped
Number of frames not transmitted because of an error