Yes your line is about 650 to 700 meters long, so attainable rate looks about right.
Post your FTTC line stats & unlocking info
- Thread starter Locky
- Start date
yeah, I have seen a friends line connected at 57mbit at 750-800meters of .5 copper, but it's now been chopped down to 45mbit due to crosstalk.
Last edited:
66mb estimate would put you at about 250 to 300 meter line, but your line is longer than that at about to 450 to 500 meters(rough estimate). Might be a poor D-side (some or all ALU) or heavy crosstalk.
Try one of those cables from Tandy, try the newer hg612 firmware, have a look at the house wiring and wait for vectoring.
My stats have changed a bit:
Code:# xdslcmd info --pbParams xdslcmd: ADSL driver and PHY status Status: Showtime Retrain Reason: 2 Max: Upstream rate = 9586 Kbps, Downstream rate = 51724 Kbps Path: 0, Upstream rate = 9491 Kbps, Downstream rate = 39996 Kbps Discovery Phase (Initial) Band Plan US: (0,95) (880,1195) (1984,2771) DS: (32,859) (1216,1959) (2792,4083) Medley Phase (Final) Band Plan US: (0,95) (880,1195) (1984,2771) DS: (32,859) (1216,1959) VDSL Port Details Upstream Downstream Attainable Net Data Rate: 9586 kbps 51724 kbps Actual Aggregate Tx Power: 5.7 dBm 12.7 dBm ============================================================================ VDSL Band Status U0 U1 U2 U3 D1 D2 D3 Line Attenuation(dB): 2.6 37.2 55.9 N/A 17.7 47.4 68.6 Signal Attenuation(dB): 2.6 37.1 54.6 N/A 17.7 47.4 N/A SNR Margin(dB): 5.0 6.0 6.2 N/A 8.0 7.9 N/A TX Power(dBm): -3.6 -4.8 4.7 N/A 11.2 7.2 N/A #
Code:# xdslcmd info --show xdslcmd: ADSL driver and PHY status Status: Showtime Retrain Reason: 2 Max: Upstream rate = 9590 Kbps, Downstream rate = 51604 Kbps Path: 0, Upstream rate = 9491 Kbps, Downstream rate = 39996 Kbps Link Power State: L0 Mode: VDSL2 Annex B VDSL2 Profile: Profile 17a TPS-TC: PTM Mode Trellis: U:ON /D:ON Line Status: No Defect Training Status: Showtime Down Up SNR (dB): 7.9 6.1 Attn(dB): 0.0 0.0 Pwr(dBm): 12.7 5.7 VDSL2 framing Path 0 B: 57 238 M: 1 1 T: 64 61 R: 16 16 S: 0.0461 0.8009 L: 12835 2547 D: 701 1 I: 74 255 N: 74 255 Counters Path 0 OHF: 2853868 519467 OHFErr: 0 0 RS: 547942281 1613094 RSCorr: 380412 0 RSUnCorr: 0 0 Path 0 HEC: 0 0 OCD: 0 0 LCD: 0 0 Total Cells: 487781967 0 Data Cells: 4152412 0 Drop Cells: 0 Bit Errors: 0 0 ES: 5461 12 SES: 67 0 UAS: 40 40 AS: 6344 Path 0 INP: 3.00 0.00 PER: 2.21 12.21 delay: 8.00 0.00 OR: 86.72 20.30 Bitswap: 1061 0 #
As has my ping, gone up around 10ms on average since 6am.
DLM the wonderful thing (not) has put interleave on your line. I think it's the lowest depth and 3 INP symbols is low (so far)
Lucky for you - you had a decent ping to start with so around the 20ms mark.
Interleave is doing it's job on your line, I see you are now getting much less packet loss.
Moved house (same estate/cab) bit closer to it 
Code:
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 36440 Kbps, Downstream rate = 105088 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 79999 Kbps
Discovery Phase (Initial) Band Plan
US: (0,95) (868,1207) (1972,2783)
DS: (32,859) (1216,1963) (2792,3959)
Medley Phase (Final) Band Plan
US: (0,95) (868,1207) (1972,2783)
DS: (32,859) (1216,1963) (2792,3959)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 36440 kbps 105088 kbps
Actual Aggregate Tx Power: - 6.3 dBm 13.0 dBm
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 2.3 9.3 12.5 N/A 5.4 11.3 17.4
Signal Attenuation(dB): 2.3 8.3 11.2 N/A 5.4 11.3 17.4
SNR Margin(dB): 23.4 23.4 23.3 N/A 12.9 12.9 12.9
TX Power(dBm): -20.0 -33.9 -6.5 N/A 9.4 7.7 7.2
Code:
# xdslcmd info --show
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 36532 Kbps, Downstream rate = 105088 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 79999 Kbps
Link Power State: L0
Mode: VDSL2 Annex B
VDSL2 Profile: Profile 17a
TPS-TC: PTM Mode
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 12.9 23.4
Attn(dB): 0.0 0.0
Pwr(dBm): 13.0 -6.3
VDSL2 framing
Path 0
B: 239 237
M: 1 1
T: 23 45
R: 0 16
S: 0.0955 0.3782
L: 20107 5373
D: 1 1
I: 240 127
N: 240 254
Counters
Path 0
OHF: 6013466 2337868
OHFErr: 2 3
RS: 0 2099898
RSCorr: 0 157
RSUnCorr: 0 0
Path 0
HEC: 14 0
OCD: 0 0
LCD: 0 0
Total Cells: 1529136646 0
Data Cells: 1095247 0
Drop Cells: 0
Bit Errors: 0 0
ES: 2 3
SES: 0 0
UAS: 18 18
AS: 9946
Path 0
INP: 0.00 0.00
PER: 1.64 4.25
delay: 0.00 0.00
OR: 116.56 60.17
Bitswap: 4 33Current Dslams don't support vectoring out of the box (unsure of this Dslam chipset) but the controller cards will need an update - hardware or at the very least a firmware update.
what brand of modem have you ordered?
Vectoring should restore the lost speed/attainable rate lost to crosstalk.
people with short/quality D-sides should see the max VDSL2 17a can provide (if BT offer higher speeds)
people with short/quality D-sides should see the max VDSL2 17a can provide (if BT offer higher speeds)
Looking at your stats your punching very well given your attenuation
Thing is without seeing stats from when your cab was empty, we have no idea what vectoring will bring.
Thing is without seeing stats from when your cab was empty, we have no idea what vectoring will bring.
do you know what chipset is powering them routers?
If you wouldn't mind looking what chipset they are, his ADSL has a crap load of FEC erros and error seconds for a 2hr uptime, there is an issue with his line at some point.
nearly 4mb isn't bad from a cheap cable change.
Also you can tailor the length of cable to make your install tidy.
FTTC cabinet arrived week commencing 13th May, and by the end of the week the hole had all been tarmaced over etc.
I emailed OpenReach the weekend afterwards to ask when I can order and they replied "currently this is awaiting power and other works, and the estimated date for cabinet enablement is close August 2013 assuming there are no issues."
Just saw on Roadworks.org
It's getting sooner... but why on earth didn't they connect it to power when they had the footpath all dug up already? Why did they fill it in and tarmac over, only to have to go and dig it up again?.
It's the councils fault and we all know they like to waste money.
I replaced the cable from the point the wire comes out the ground and is crimped into this cheap crappy white cable and gained about 500kps but it was only about a meters worth and it was alu.
That backs up the figures that i got good to know it can be duplicated, So your line in your house is optimized its just BT's side that isn't, That's what i am trying to get the last thing is the cable outside that connects the house then thats it i can't do anymore tweaking wiring wise.
I'll post again when my line has stabilized after the alteration.
tbh my attainable rate is over 100mbit as I can see the cab out of the window
but I wasn't keen on the last meter with Alu in it.This estate is only 5 years old so it was a bit ***** of BT to install Alu into the house when the D-side is .5 copper. It may have been a contractor that did this though.
You get them from Tandy online.