Soldato
Have you tried the BT supplied modem? From what I've seen the Draytek VDSL modem isn't very good and syncs a lot slower than the ECI or Huawei modems. On such a long line it might make a significant difference.
Post your FTTC line stats & unlocking info
- Thread starter Locky
- Start date
Have you tried the BT supplied modem? From what I've seen the Draytek VDSL modem isn't very good and syncs a lot slower than the ECI or Huawei modems. On such a long line it might make a significant difference.
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Associate
Struggling to understand why my downstream seems to be lower then it should be.
I'm 450mts from box to house, underground cables - house is 8 years old..
At install i got 80/20 off the Engineer - and throughput at 74.
Now the max is only 65 ?
I'm 450mts from box to house, underground cables - house is 8 years old..
At install i got 80/20 off the Engineer - and throughput at 74.
Now the max is only 65 ?
Code:
BusyBox v1.9.1 (2010-10-15 17:59:06 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.
# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 27227 Kbps, Downstream rate = 65276 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 63876 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) (2792,4083)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 27227 kbps 65276 kbps
Actual Aggregate Tx Power: 5.0 dBm 12.6 dBm
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 1.1 23.4 35.5 N/A 12.6 29.8 47.1
Signal Attenuation(dB): 1.1 23.2 35.4 N/A 12.6 29.8 47.1
SNR Margin(dB): 9.6 9.9 9.5 N/A 6.3 6.2 6.5
TX Power(dBm): -4.9 -20.0 4.5 N/A 8.7 7.2 7.3
#
# xdslcmd info --show
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 27265 Kbps, Downstream rate = 65276 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 63876 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): 6.3 9.7
Attn(dB): 0.0 0.0
Pwr(dBm): 12.6 5.0
VDSL2 framing
Path 0
B: 239 236
M: 1 1
T: 21 5
R: 0 16
S: 0.1196 0.3771
L: 16057 5410
D: 1 1
I: 240 255
N: 240 255
Counters
Path 0
OHF: 51833 16213
OHFErr: 5 0
RS: 0 1053328
RSCorr: 0 0
RSUnCorr: 0 0
Path 0
HEC: 26 0
OCD: 0 0
LCD: 0 0
Total Cells: 12032206 0
Data Cells: 3037 0
Drop Cells: 0
Bit Errors: 0 0
ES: 4 0
SES: 0 0
UAS: 23 23
AS: 99
Path 0
INP: 0.00 0.00
PER: 1.88 6.12
delay: 0.00 0.00
OR: 101.94 203.67
Bitswap: 19 0
#
I would say you are more like 500 meters looking at the stats.
might be due to crosstalk etc for the speed drop.
might be due to crosstalk etc for the speed drop.
Code:# xdslcmd info --pbParams xdslcmd: ADSL driver and PHY status Status: Showtime Retrain Reason: 0 Max: Upstream rate = 21778 Kbps, Downstream rate = 71280 Kbps Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 71642 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) (2792,4083) VDSL Port Details Upstream Downstream Attainable Net Data Rate: 21778 kbps 71280 kbps Actual Aggregate Tx Power: 6.5 dBm 12.4 dBm ============================================================================ VDSL Band Status U0 U1 U2 U3 D1 D2 D3 Line Attenuation(dB): 0.7 28.7 44.0 N/A 14.3 37.1 58.1 Signal Attenuation(dB): 0.7 28.5 43.9 N/A 14.3 37.1 58.1 SNR Margin(dB): 6.0 6.0 6.5 N/A 6.5 6.1 5.9 TX Power(dBm): -5.2 -16.3 6.2 N/A 9.5 7.8 4.4
Code:# xdslcmd info --show xdslcmd: ADSL driver and PHY status Status: Showtime Retrain Reason: 0 Max: Upstream rate = 21733 Kbps, Downstream rate = 71280 Kbps Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 71642 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): 6.2 6.3 Attn(dB): 0.0 0.0 Pwr(dBm): 12.5 6.5 VDSL2 framing Path 0 B: 239 236 M: 1 1 T: 21 5 R: 0 16 S: 0.1066 0.3771 L: 18009 5410 D: 1 1 I: 240 255 N: 240 255 Counters Path 0 OHF: 11866741 526990 OHFErr: 6952 26 RS: 0 1740008 RSCorr: 0 263 RSUnCorr: 0 0 Path 0 HEC: 14178 0 OCD: 0 0 LCD: 0 0 Total Cells: 2754776663 0 Data Cells: 44950767 0 Drop Cells: 0 Bit Errors: 0 0 ES: 617 24 SES: 8 0 UAS: 71 71 AS: 20005 Path 0 INP: 0.00 0.00 PER: 1.67 6.12 delay: 0.00 0.00 OR: 114.34 203.67 Bitswap: 6538 147 #
Just a bit of a bump, as the thread seems to have gone quiet. When the engineer came to install everything I'd already unlocked an Echolife modem using the help in this thread, so he gave me a spare
Can anyone tell me anything about my stats, that's not already obvious? I.e. I'm at the sync limit at what the line can achieve.
Here is a route map from our house to the FTTC cabinet, http://goo.gl/maps/YMu5d although I would trim 100-150m off for the roundabout so I would say we're closer to 650m from the cab.
I trimmed off the roundabout and coverted to KM and it comes out @ 1.1km, looking at your line attenuation etc you don't have a 1.1km line, so I doubt the line would take the route you show.
https://maps.google.co.uk/maps?sadd...=w&doflg=ptk&mra=dvme&mrsp=1&sz=18&via=1&z=17 Trimmed roundabout
I would say your line takes this route, it may even cross the road and go up that footpath. https://maps.google.co.uk/maps?sadd...w&doflg=ptk&mra=dpe&mrsp=1&sz=18&via=1,2&z=19
Last edited:
Deleted member 651465
D
Deleted member 651465
Yeah, I thought as much.
I know for a fact that the cable goes back down to the end of our road then up the main road for a bit as the DP is on a pole at the bottom of the street.
The debate is whether it then follows the main road or cuts up a footpath for a more direct route such as this: http://goo.gl/maps/wEOhE
Annoyingly, if you turn out of my house to the right the cul-de-sac ends and then there's a short path which joins the main road. Along this walking route are 3x BT inspection chambers, which if you were to avoid going to the DP and up the footpath, (a way that the engineer originally thought the line was going during install, commenting "why didn't they take it this way? :facepalm: ), that distance drops to circa 400m: http://goo.gl/maps/sK9eF
I do know that when the line was put in the engineer commented how thick the copper was, and that the entire run from cabinet to my house was brand new and underground (minus popping up to connect to the DP) so perhaps it is longer than I think and the attenuation is lower because the thicker cable is not so noisy?
Last edited by a moderator:
Associate
Hi here is mine.
&
Has any one had a play around with things like,
PTM priority
DSL latency
&
Has any one had a play around with things like,
PTM priority
DSL latency
Deleted member 651465
D
Deleted member 651465
I set PTM priority to normal and fast. If you set it to fast only it doesn't like it for what I've seen.
With his line attenuation I would say he's closer to 650m as he says, he must have a good quality line as he is pulling a nice speed over that attenuation.
Deleted member 651465
D
Deleted member 651465
Ok, just after a bit of advice really..
My connection lost sync this morning around 5am, and dropped down to a sync speed of 62564. I can now see that the max attainable is around 75380 with a downstream snr margin of 7.4dB
Is it worth rebooting the modem so that it establishes a higher sync?
I'm concious that DLM may kick in if I reset the modem just to try to attain a higher speed, and limit me to a long therm cap of 62000 if it believes that is more stable. Personally, I hate DLM but that's by the by
I've not had any drop outs at 75000 apart from when I've been tweaking the modem, so I'm confident it'll handle the higher sync speed.
Thoughts?
My connection lost sync this morning around 5am, and dropped down to a sync speed of 62564. I can now see that the max attainable is around 75380 with a downstream snr margin of 7.4dB
Is it worth rebooting the modem so that it establishes a higher sync?
I'm concious that DLM may kick in if I reset the modem just to try to attain a higher speed, and limit me to a long therm cap of 62000 if it believes that is more stable. Personally, I hate DLM but that's by the by
I've not had any drop outs at 75000 apart from when I've been tweaking the modem, so I'm confident it'll handle the higher sync speed.
Thoughts?
Ok, just after a bit of advice really..
My connection lost sync this morning around 5am, and dropped down to a sync speed of 62564. I can now see that the max attainable is around 75380 with a downstream snr margin of 7.4dB
Is it worth rebooting the modem so that it establishes a higher sync?
I'm concious that DLM may kick in if I reset the modem just to try to attain a higher speed, and limit me to a long therm cap of 62000 if it believes that is more stable. Personally, I hate DLM but that's by the by
I've not had any drop outs at 75000 apart from when I've been tweaking the modem, so I'm confident it'll handle the higher sync speed.
Thoughts?
The resync would have been the DLM kicking in to re-porfile your line, the DLM usually changes the line between 5am to 6am.
It might not have changed it due to any line drops, but the error rate might have been high, keep an eye on the error rate.
when you want to tweak or change anything on the line or re-sync don't just turn it off and on, there is a reboot option in the modem under Maintenance > Device > Reset, this is better as the DLM won't see it as a dropped connection.
Associate
- Joined
- 12 Mar 2012
- Posts
- 44
Just a heads up guys.............
New Windows programs have just been released today for logging/graphing the stats from an unlocked Huawei HG612 modem on a FTTC connection.
Download site is here:-
freewarefiles.com
Once set up (.Net needs to be installed to use the config ini file editor/front end) the programs can be left running 24/7, logging & graphing the stats at user defined time schedules.
Everything can still be set up by manually editing the text based ini file if users do not wish to install .Net
Setting up instructions are included in the download.
Once downloaded, simply unzip everything to Drive C:, ensuring expand folders (or equivalent) is ON.
The necessary subfolders will be created & the programs/files extracted accordingly within C:\HG612_Modem_Stats
New Windows programs have just been released today for logging/graphing the stats from an unlocked Huawei HG612 modem on a FTTC connection.
Download site is here:-
freewarefiles.com
Once set up (.Net needs to be installed to use the config ini file editor/front end) the programs can be left running 24/7, logging & graphing the stats at user defined time schedules.
Everything can still be set up by manually editing the text based ini file if users do not wish to install .Net
Setting up instructions are included in the download.
Once downloaded, simply unzip everything to Drive C:, ensuring expand folders (or equivalent) is ON.
The necessary subfolders will be created & the programs/files extracted accordingly within C:\HG612_Modem_Stats
Last edited:
Very nice mate, works fine here, windows 8 64bit. I will kick things off.
FTTC been installed for 2 years nearly, cab pretty full, crosstalk chopped about 7mb attainable rate off over a period of 2 years isn't bad,
been at this speed for the past year now and unlikely to drop (unless faulty) line length is roughly 300 meters.
Uptime has been 2 weeks ish since I last rebooted the modem.
FTTC been installed for 2 years nearly, cab pretty full, crosstalk chopped about 7mb attainable rate off over a period of 2 years isn't bad,
been at this speed for the past year now and unlikely to drop (unless faulty) line length is roughly 300 meters.
Uptime has been 2 weeks ish since I last rebooted the modem.
Last edited:
Associate
- Joined
- 12 Mar 2012
- Posts
- 44
Hi Locky & thanks for the feedback.
That's great to hear.
Neither Ronski (who created the settings editor) or I knew if it would work with Windows 8 as all our testing has been on XP, Vista & Windows 7.
Similar chopped off mine too, but 7Mb off my initial 33Mb isn't that great
How did you find the setting up process & have you started the Ongoing logging?
That's great to hear.
Neither Ronski (who created the settings editor) or I knew if it would work with Windows 8 as all our testing has been on XP, Vista & Windows 7.
Similar chopped off mine too, but 7Mb off my initial 33Mb isn't that great
How did you find the setting up process & have you started the Ongoing logging?
Hi Locky & thanks for the feedback.
That's great to hear.
Neither Ronski (who created the settings editor) or I knew if it would work with Windows 8 as all our testing has been on XP, Vista & Windows 7.
Similar chopped off mine too, but 7Mb off my initial 33Mb isn't that great
How did you find the setting up process & have you started the Ongoing logging?
I haven't started the ongoing logging yet, I wish I did as something has chopped 2mb off my attainable rate for no reason, no new installs today as I can see the cab and been no BT about.
So it's quite common for speeds to drop a little over time due to (e.g.) crosstalk, is it?
A year ago I had fibre broadband installed and was getting the full 40Mb (38Mb d/l speeds) but in the last few months it has dropped to about 35Mb.
I suppose this can be expected as FTTC becomes more widespread...? Where will it end though - at ADSL speeds?!
A year ago I had fibre broadband installed and was getting the full 40Mb (38Mb d/l speeds) but in the last few months it has dropped to about 35Mb.
I suppose this can be expected as FTTC becomes more widespread...? Where will it end though - at ADSL speeds?!
It's why the estimate is conservative, it's based on a full cab and reason why you get higher speed (usually) is the cab isn't full so there is less crosstalk.
I have found out what chopped a few MB off my line too, spoke to BT ELC (on good terms now) they have changed the algorithm in my cab which is meant to make lines more stable.
I have found I'm getting even less error seconds (not that I had many anyway) and bit's swap is different and shared tones have increased.
I have found out what chopped a few MB off my line too, spoke to BT ELC (on good terms now) they have changed the algorithm in my cab which is meant to make lines more stable.
I have found I'm getting even less error seconds (not that I had many anyway) and bit's swap is different and shared tones have increased.
Last edited:
So I just got a HG612 to replace my ECI modem, here's my line stats.
Looks good enough to upgrade to sky pro when they sort out the local congestion in my area.
Code:
# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 36453 Kbps, Downstream rate = 107768 Kbps
Path: 0, Upstream rate = 9995 Kbps, Downstream rate = 39998 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) (2792,4083)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 36453 kbps 107768 kbps
Actual Aggregate Tx Power: 2.0 dBm 12.4 dBm
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 0.1 14.9 22.4 N/A 8.7 19.6 31.1
Signal Attenuation(dB): 0.1 14.7 22.4 N/A 8.7 19.6 31.1
SNR Margin(dB): 26.5 0.0 25.3 N/A 24.5 24.6 24.6
TX Power(dBm): -5.1 -128.0 1.1 N/A 8.3 7.3 7.0
#
Code:
# xdslcmd info --show
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 36474 Kbps, Downstream rate = 107768 Kbps
Path: 0, Upstream rate = 9995 Kbps, Downstream rate = 39998 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): 24.6 25.3
Attn(dB): 0.0 0.0
Pwr(dBm): 12.4 2.0
VDSL2 framing
Path 0
B: 239 235
M: 1 1
T: 64 7
R: 0 16
S: 0.1909 0.7508
L: 10055 2717
D: 1 1
I: 240 255
N: 240 255
Counters
Path 0
OHF: 649466 168568
OHFErr: 0 0
RS: 0 2027761
RSCorr: 0 0
RSUnCorr: 0 0
Path 0
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 152804420 0
Data Cells: 886903 0
Drop Cells: 0
Bit Errors: 0 0
ES: 0 0
SES: 0 0
UAS: 40 40
AS: 1994
Path 0
INP: 0.00 0.00
PER: 3.05 11.82
delay: 0.00 0.00
OR: 65.46 152.21
Bitswap: 3 0Looks good enough to upgrade to sky pro when they sort out the local congestion in my area.
Associate
- Joined
- 12 Mar 2012
- Posts
- 44
From this, we can see you are connected to an ECI cabinet DSLAM:-
Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
There is a school of thought that a HG612 connected to an ECI DSLAM introduces some incompatibility issues.
It would be interesting to see how the connection stats alter (if at all) over a period of say a couple of weeks.
Your high Attainable Rates & spare SNRM capacity do suggest you are unlikely to see/feel any difference in normal use though, especially on your currently capped 40Mb downstream service.
For curiosity, how long has it been since initial FTTC installation?
Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
There is a school of thought that a HG612 connected to an ECI DSLAM introduces some incompatibility issues.
It would be interesting to see how the connection stats alter (if at all) over a period of say a couple of weeks.
Your high Attainable Rates & spare SNRM capacity do suggest you are unlikely to see/feel any difference in normal use though, especially on your currently capped 40Mb downstream service.
For curiosity, how long has it been since initial FTTC installation?