這數據真的準嗎

我家室內連接數據機的線路還是用電話線，目前用10/2
打算50M降價後改用50M...

============================================================================
VDSL Training Status: Showtime
VDSL Profile: Profile 17a
Traffic Type: PTM Mode
============================================================================
VDSL Port Details Upstream Downstream
Line Rate: 2.233 Mbps 10.759 Mbps
Actual Net Data Rate: 2.176 Mbps 10.687 Mbps
Trellis Coding: ON ON
SNR Margin: 30.2 dB 28.2 dB
Actual Delay: 7 ms 7 ms
Transmit Power: 10.9 dBm 3.8 dBm
Receive Power: -5.6 dBm -7.4 dBm
Actual INP: 26.0 symbols 26.0 symbols
Total Attenuation: 5.9 dB 11.3 dB
Attainable Net Data Rate: 38.475 Mbps 94.320 Mbps
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 4 .1 15.8 24.2 N/A 9 .3 20.5 32.2
Signal Attenuation(dB): N/A 4 .1 16.5 N/A 9 .3 20.5 32.2
SNR Margin(dB): N/A 30.2 30.1 N/A 28.7 27.6 0 .0
Transmit Power(dBm): N/A -1 .7 -4 .1 N/A 1 .6 -0 .1 -128.0
============================================================================

Since Link time = 9 days 13 hours 55 min 19 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 1
LOS: 0 0
LOF: 0 0
Latest 15 minutes time = 10 min 39 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Previous 15 minutes time = 15 min 0 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Latest 1 day time = 13 hours 55 min 39 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Previous 1 day time = 24 hours 0 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Total time = 1 days 13 hours 55 min 39 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 18 19
LOS: 0 0
LOF: 0 0

============================================================================