Thanks for this very useful software.
I'm ( another ) VDSL2 user from Brazil using Huawei HG612.
I notice that the bitloading show something wrong when compared with telnet data. The connection doesn't use U0 band but the graphic colors part of D1 as upstream.
xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 8496 Kbps, Downstream rate = 63900 Kbps
Path: 0, Upstream rate = 3998 Kbps, Downstream rate = 38000 Kbps
Discovery Phase (Initial) Band Plan
US: (872,1203) (1972,2779)
DS: (36,867) (1208,1971) (2788,4051)
Medley Phase (Final) Band Plan
US: (872,1203) (1972,2779)
DS: (36,867) (1208,1971) (2788,4051)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 8496 kbps 63900 kbps
Actual Aggregate Tx Power: 6.3 dBm 14.1 dBm
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): N/A 16.1 20.1 N/A 17.7 43.6 65.3
Signal Attenuation(dB): N/A 30.4 48.0 N/A 17.7 43.6 65.3
SNR Margin(dB): N/A 15.7 14.9 N/A 13.3 13.3 0.0
TX Power(dBm): N/A 6.2 -8.6 N/A 12.2 7.6 -128.0