1) I just connected the Zyxel router (I did not reboot it, I just connected the DSL lead.
I did this just for for monitoring purposes but I noticed that the d/s speed has gone up - a lot.
After months at 2MBPS and 2 days at 10-12, I now see IP profile of 15.39 MBPS and a download rate of nearly 14MBPS.
The upstream rate is stubbornly slow. I wonder if there are any ways you can address this? (I have no idea whether you can boost a modem's output signal, for example, or indeed if it would help.).
From BT wholesale ....
Download speed achieved during the test was - 13.84 Mbps
IP Profile for your line is - 15.39 Mbps
Upload speed achieved during the test was - 0.43Mbps
Upstream Rate IP profile on your line is - 2 Mbps
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2) I've looked at the modem but I have not tweaked the target SNR - the modem says the margin is about 6, which seems right.
I wonder why it is faster d/s on the Zyxel?? I'm not complaining but I'm not sure why. Maybe it has good signal conditioning circuitry or a nice/cabinet-compatible chipset, ...? Or maybe it won't last.
If anything, u/s is a smidgen slower on the Zyxel but that's like saying it lost a photo finish in snail race.
Here are the figures from the Zyxel modem ....
VDSL Training Status: Showtime
Mode: VDSL2 Annex B
VDSL Profile: Profile 17a
Traffic Type: PTM Mode
Link Uptime: 0 day: 0 hour: 13 minutes
============================================================================
VDSL Port Details Upstream Downstream
Line Rate: 0.493 Mbps 15.947 Mbps
Actual Net Data Rate: 0.474 Mbps 15.901 Mbps
Trellis Coding: ON ON
SNR Margin: 6.6 dB 6.2 dB
Actual Delay: 8 ms 8 ms
Transmit Power: 4.8 dBm 11.6 dBm
Receive Power: -5.0 dBm -20.1 dBm
Actual INP: 2.5 symbols 3.0 symbols
Total Attenuation: 9.8 dB 31.7 dB
Attainable Net Data Rate: 0.476 Mbps 18.408 Mbps
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 9.8 68.5 66.8 N/A 31.7 90.3 102.3
Signal Attenuation(dB): 9.8 N/A N/A N/A 31.7 N/A N/A
SNR Margin(dB): 6.6 N/A N/A N/A 6.2 N/A N/A
Transmit Power(dBm): 4.8 N/A N/A N/A 11.6 N/A N/A
============================================================================
VDSL Counters
Downstream Upstream
Since Link time = 13 min 51 sec
FEC: 31168 77
CRC: 3 0
ES: 2 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 15 minutes time = 11 min 28 sec
FEC: 24158 59
CRC: 3 0
ES: 2 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Previous 15 minutes time = 15 min 0 sec
FEC: 7010 18
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 756 756
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 1 day time = 18 hours 56 min 28 sec
FEC: 31168 77
CRC: 3 0
ES: 2 0
SES: 0 0
UAS: 67355 67355
LOS: 0 0
LOF: 0 0
LOM: 0 0
Previous 1 day time = 24 hours 0 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 86401 86401
LOS: 0 0
LOF: 0 0
LOM: 0 0
Total time = 1 days 18 hours 56 min 28 sec
FEC: 35482 77
CRC: 694 4
ES: 13 3
SES: 10 0
UAS: 531824 531824
LOS: 10 0
LOF: 9 0
LOM: 0 0
============================================================================
3) I downloaded DSLstats and it is logging away.
How long to let it run before posting some data to the forum?
?
Thanks for any advise you can offer on (3)