ADSL or ADSL2 on a long line?

malthousecott · ‎16-01-2015

i have BT business boadband (office unlimited ADSL2 Next Gen (up to 20 Mb)). Historically i have had poor broadband hence swapping to business to try and improve matters. i have now ditched the home hub and gone to a 7800N which has made a big difference. although over Christmas the flashing lights played havoc with the broadband and now i have a high SNR margin and interleaving..

However, my main question is will it be worth me pushing for ADSL2 given my line (stats from DSL stats below). currently my router will only connect with G.DMT so i am assuming i can only get ADSL? Will ADSL2 or indeed 2+ improve speed/stability on a long line with attenuation around 62 dB?

thanks everyone

DSLAM/MSAN type: IFTN:0x71c8 / v0x71c8

Modem/router firmware: AnnexA version - A2pB025f.d22k

DSL mode: G

Status: Showtime

Uptime: 3 days 15 hours 12 min 13 sec

Resyncs: 1 (since 16 Jan 2015 09:24:44)

Downstream Upstream

Line attenuation (dB): 62.0 31.5

Signal attenuation (dB): Not monitored

Connection speed (kbps): 2944 448

SNR margin (dB): 9.7 9.0

Power (dBm): 17.8 12.6

Interleave depth: 16 4

INP: 0.65 1.88

RSCorr/RS (%): 0.0225 0.0051

RSUnCorr/RS (%): 0.0093 0.0000

ES/hour: 0 0

adsl info --stats

adsl: ADSL driver and PHY status

Status: Showtime

Retrain Reason: 8000

Max: Upstream rate = 688 Kbps, Downstream rate = 3264 Kbps

Channel: INTR, Upstream rate = 448 Kbps, Downstream rate = 2944 Kbps

Link Power State: L0

Mode: G.DMT

TPS-TC: ATM Mode

Trellis: ON

Line Status: No Defect

Training Status: Showtime

Down Up

SNR (dB): 9.6 9.0

Attn(dB): 62.0 31.5

Pwr(dBm): 17.8 12.6

G.dmt framing

K: 93(0) 15

R: 8 16

S: 2 8

😧 16 4

Counters

SF: 18470539 18470803

SFErr: 4432 697

RS: 627998338 157001825

RSCorr: 141398 8020

RSUnCorr: 58116 0

HEC: 3611 586

OCD: 78 8

LCD: 0 2

Total Cells: 2179945133 0

Data Cells: 84244409 0

Drop Cells: 37

Bit Errors: 0 0

ES: 2322 0

SES: 49 0

UAS: 98 98

AS: 314005

INP: 0.65 1.88

PER: 1.75 1.75

delay: 8.00 8.00

OR: 32.00 32.00

Bitswap: 28562 750

Total time = 1 days 19 hours 20 min 38 sec

FEC: 213384 0

CRC: 5918 0

ES: 2322 0

SES: 49 0

UAS: 98 98

LOS: 1 0

LOF: 9 0

Latest 15 minutes time = 5 min 38 sec

FEC: 1740 0

CRC: 36 0

ES: 9 0

SES: 0 0

UAS: 0 0

LOS: 0 0

LOF: 0 0

Previous 15 minutes time = 15 min 0 sec

FEC: 29484 0

CRC: 440 0

ES: 75 0

SES: 1 0

UAS: 0 0

LOS: 0 0

LOF: 0 0

Latest 1 day time = 19 hours 20 min 38 sec

FEC: 57861 0

CRC: 1256 0

ES: 426 0

SES: 9 0

UAS: 0 0

LOS: 0 0

LOF: 0 0

Previous 1 day time = 24 hours 0 sec

FEC: 16164 0

CRC: 422 0

ES: 228 0

SES: 2 0

UAS: 0 0

LOS: 0 0

LOF: 0 0

Since Link time = 3 days 15 hours 13 min 23 sec

FEC: 141398 8020

CRC: 4432 697

ES: 1803 0

SES: 28 0

UAS: 0 0

LOS: 0 0

LOF: 0 0

Burkem5 · ‎19-01-2015

Hi @malthousecott

If you PM me your ADSL number i can send you all the stats on your line including length and what this is capable of, alternately you can use Sam Knows > UK Broadband availability checker > Broadband checker to check if ADSL 2+ is available as well as a few other useful stats about your line.

if you have had a dropping connection and your line profile has changed then please report this via the contact us link as there may be a fault on the line.

The attenuation/loop loss is an indicator of how long your line is and nothing will shorten that. Though this could have risen due to an electrical imbalance no the line and fixing that will take the Attenuation down to what it should be.

Hope this helps

Burkem5