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VDSL Stats - Whats yours?

godskitchen · 2013-06-15 15:12:52

Hello all, I thought it would be benificial for us to build a database of VDSL line stats and speeds we are obtaining. I think it could help some people establish if their lines are of poor quality and try and get something done about it. Its also a bit of fun if you are into that kind of thing. For the sake of keeping…

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#122 13-12-2013 5:49pm
TBi

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KeRbDoG wrote: »

From my earlier post in this thread;

The change from 13dB loss to 22dB loss is massive. Every 3dB (or 6 depending on whats being calculated) is double the loss. That's 3x the loss for cheaper wire, bloody massive.

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#123 13-12-2013 5:52pm
KeRbDoG

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True, suppose my point isn't to use the default cable dB loss to calc cable distance

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#124 13-12-2013 10:55pm
TBi

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KeRbDoG wrote: »

True, suppose my point isn't to use the default cable dB loss to calc cable distance

My point is that the cable can't be that bad.

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#125 17-12-2013 4:07pm
Mr Cumulonimbus

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Just got Eircom's efibre installed (up to 50 Meg option). About 400 metres from the cabinet.

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#126 17-12-2013 4:12pm
Popoutman

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Output from the Technicolor device on my Magnet FP70 connection:
Broadband Connection

2.1 Type VDSL
2.2 Status Up
2.3 Uptime 3 days 16 hours 38 mins 35 secs
2.4 Line Rate (Down / Up) 71678 Kbps / 20479 Kbps
2.5 Noise Margin (Down / Up) 12.8 dB / 10.3 dB
2.6 Attenuation (Down / Up) 6.4 dB / 1.9 dB
2.7 Power (Down / Up) 14.1 dBm / -17.7 dBm

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#127 17-12-2013 9:10pm
PeWu79

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Aprox 350m from the cab.

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#128 19-12-2013 6:15pm
Vico1612

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Goodbye Sky ... Hello Vodafone ...

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#129 19-12-2013 8:02pm
jca

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Vico1612 wrote: »

Goodbye Sky ... Hello Vodafone ...

They're pretty awful figures for a 70/20 profile.

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#130 19-12-2013 9:07pm
naughto

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its 8MB

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#131 19-12-2013 9:07pm
Frank Garrett

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jca wrote: »

They're pretty awful figures for a 70/20 profile.

I think he changed the settings from megabits to megabytes.

http://www.speedtest.net/user-settings.php

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#132 19-12-2013 9:17pm
naughto

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this is mine when i change the settings.vectorig will help a lot next yr

That's the wrong pic

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#133 20-12-2013 3:17am
Bavar

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Im lucky, calculator say max down speed shut be 35934 kbps

Broadband Connection

TypeVDSL
StatusUp
Uptime15 days 11 hours 54 mins 15 secs
Line Rate (Down / Up)50174 Kbps / 20479 Kbps
Noise Margin (Down / Up)13.5 dB / 13.8 dB
Attenuation (Down / Up)14.4 dB / 4.4 dB
Power (Down / Up)11.1 dBm / 0.4 dBm

but tru is

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#134 24-12-2013 3:37am
Uriel.

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So this is what I am getting on an Eircom E-Fibre Wired Connection? How does this fair? Should I be getting more. I had some problems initially but it seems to have settled down, though wifi connections is up and down and somwhere around the low 20s it seems

============================================================================
VDSL Training Status: Showtime
Mode: VDSL2 Annex B
VDSL Profile: Profile 17a
Traffic Type: PTM Mode
Link Uptime: 2 days: 11 hours: 24 minutes
============================================================================
VDSL Port Details Upstream Downstream
Line Rate: 20.541 Mbps 50.268 Mbps
Actual Net Data Rate: 20.479 Mbps 50.170 Mbps
Trellis Coding: ON ON
SNR Margin: 11.6 dB 20.8 dB
Actual Delay: 7 ms 8 ms
Transmit Power: - 9.7 dBm 13.3 dBm
Receive Power: -23.2 dBm -3.1 dBm
Actual INP: 2.0 symbols 3.0 symbols
Total Attenuation: 13.4 dB 16.4 dB
Attainable Net Data Rate: 30.443 Mbps 111.064 Mbps
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 3.2 17.2 24.9 N/A 10.3 22.9 34.4
Signal Attenuation(dB): 3.2 16.3 23.7 N/A 13.6 22.7 34.4
SNR Margin(dB): 11.5 11.6 11.6 N/A 20.8 20.8 20.8
Transmit Power(dBm):-21.7 -12.5 -13.7 N/A 10.1 7.8 7.0
============================================================================

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#135 24-12-2013 4:15am
Frank Garrett

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Uriel. wrote: »

So this is what I am getting on an Eircom E-Fibre Wired Connection? How does this fair? Should I be getting more. I had some problems initially but it seems to have settled down, though wifi connections is up and down and somwhere around the low 20s it seems

VDSL Port Details Upstream Downstream
Line Rate: 20.541 Mbps 50.268 Mbps
Actual Net Data Rate: 20.479 Mbps 50.170 Mbps
SNR Margin: 11.6 dB 20.8 dB
Total Attenuation: 13.4 dB 16.4 dB
Attainable Net Data Rate: 30.443 Mbps 111.064 Mbps

You should be getting about 48Mb/s on the Speedtest result. You're pretty close to the cabinet judging from your attainable net data rate.

Are you subscribed to Eircom's eVision?

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#136 24-12-2013 11:00am
Uriel.

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Frank Garrett wrote: »

You should be getting about 48Mb/s on the Speedtest result. You're pretty close to the cabinet judging from your attainable net data rate.

Are you subscribed to Eircom's eVision?

Hi,
No not subscribed to evision.
I did approx 10 speedtests one after the other last night (wired) and got varying download speeds from 23mb to 48mb. Would there be any reason for the wild fluctuations?

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#137 24-12-2013 11:28am
Bog Standard User

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godskitchen wrote: »

Hello all,

I thought it would be benificial for us to build a database of VDSL line stats and speeds we are obtaining.

I think it could help some people establish if their lines are of poor quality and try and get something done about it.

Its also a bit of fun if you are into that kind of thing.

For the sake of keeping things tidy I propose we could set out the data as follows. I will use a real site I look after as an example and will be adding more when I get time.

Approximate distance to Cabinet = 700 - 800 Meters
Connection to the Modem = 50cm Cat6 (single pair used) from line point of entry into building to NTU.

Using http://www.speedguide.net/dsl_speed_calc.php as a rough guide my line stats suggest I am 1484 Meters away from the cabinet......

I think there is something wrong with the line somewhere.

its not line of sight distance to cab the cables run along roads. 1484 m from cable would suggest best speeds are 12mb/1mb to 15mb/3mb

if your are getting 23mb/6mb your profile is set at 25mb/7mb (800m is about right for 25mb/7mb)

tests done over wifi are invalid tests because the wifi speed varies during the test and distorts the test result. also wireless g devices will slow down over all wifi speeds to at best 25mb. wireless n devices rarely get better than 45mb.

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#138 10-01-2014 12:37am
naughto

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naughto wrote: »

hers mine.would i be able to get any more ouf of the line?

============================================================================
VDSL Training Status: Showtime
Mode: VDSL2 Annex B
VDSL Profile: Profile 17a
Traffic Type: PTM Mode
Link Uptime: 0 day: 1 hour: 39 minutes
============================================================================
VDSL Port Details Upstream Downstream
Line Rate: 8.251 Mbps 30.795 Mbps
Actual Net Data Rate: 8.191 Mbps 30.720 Mbps
Trellis Coding: ON ON
SNR Margin: 11.7 dB 12.4 dB
Actual Delay: 6 ms 8 ms
Transmit Power: 8.3 dBm 12.8 dBm
Receive Power: -6.5 dBm -16.3 dBm
Actual INP: 2.0 symbols 3.0 symbols
Total Attenuation: 14.8 dB 29.1 dB
Attainable Net Data Rate: 13.971 Mbps 48.888 Mbps
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 7.4 40.1 59.2 N/A 19.4 50.4 76.5
Signal Attenuation(dB): 7.4 39.3 56.2 N/A 27.6 50.0 N/A
SNR Margin(dB): 11.7 11.7 11.7 N/A 12.4 12.4 N/A
Transmit Power(dBm): 0.8 6.0 1.7 N/A 11.2 7.7 N/A
============================================================================

this is me now
some thing wrong some where

VDSL Training Status: Showtime
Mode: VDSL2 Annex B
VDSL Profile: Profile 17a
Traffic Type: PTM Mode
Link Uptime: 2 days: 3 hours: 53 minutes
============================================================================
VDSL Port Details Upstream Downstream
Line Rate: 8.251 Mbps 30.795 Mbps
Actual Net Data Rate: 8.191 Mbps 30.720 Mbps
Trellis Coding: ON ON
SNR Margin: 11.5 dB 12.7 dB
Actual Delay: 4 ms 8 ms
Transmit Power: 8.4 dBm 12.8 dBm
Receive Power: -6.6 dBm -16.0 dBm
Actual INP: 2.0 symbols 3.0 symbols
Total Attenuation: 15.1 dB 28.8 dB
Attainable Net Data Rate: 14.856 Mbps 49.184 Mbps
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 7.3 40.0 59.1 N/A 18.9 50.2 76.2
Signal Attenuation(dB): 7.3 39.2 56.0 N/A 27.2 49.8 N/A
SNR Margin(dB): 11.4 11.5 11.6 N/A 12.7 12.7 N/A
Transmit Power(dBm): 0.6 6.2 2.1 N/A 11.1 7.8 N/A
============================================================================

VDSL Counters

Downstream Upstream
Since Link time = 53 min 21 sec
FEC: 477567 570
CRC: 210 0
ES: 66 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 15 minutes time = 8 min 51 sec
FEC: 400 0
CRC: 0 0
ES: 0 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: 640 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 1 day time = 3 hours 53 min 51 sec
FEC: 43986 0
CRC: 17 0
ES: 7 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Previous 1 day time = 24 hours 0 sec
FEC: 249413 145
CRC: 119 0
ES: 32 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Total time = 1 days 3 hours 53 min 51 sec
FEC: 477567 570
CRC: 210 0
ES: 66 0
SES: 0 0
UAS: 28 28
LOS: 0 0
LOF: 0 0
LOM: 0 0

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#139 10-01-2014 3:19am
Bavar

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naughto wrote: »

Total Attenuation: 15.1 dB 28.8 dB

Looks like you to faraway from cabinet.

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#140 10-01-2014 1:06pm
naughto

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Bavar wrote: »

Looks like you to faraway from cabinet.

the max i can get is 30down,there is a cabnet close to me but for some reason iam not connected to it.
its back up to 30down again to day

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#141 10-01-2014 1:23pm
KeRbDoG

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naughto wrote: »

the max i can get is 30down,there is a cabinet close to me but for some reason I'm not connected to it.
its back up to 30down again to day

Could be due to a number of factors, if the dB is shifting it could be due to water ingress into the cabling between you and the cab. If the upload/download speeds are adjusting it could just be down to Eircom's service, congestion on their network, congestion on the server you selecting for the speed test.

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#142 24-01-2014 4:58pm
tdonegan1990

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Anyone else's line attenuation increase all of a sudden?!
Mine went from 13.8 to 20.2!

Still getting my usual speed of 47 Meg down but my attainable line speed went from 95 to 63!

Anyone know what might of caused this?

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#143 24-01-2014 5:03pm
Chris The Hacker

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tdonegan1990 wrote: »

Anyone else's line attenuation increase all of a sudden?!
Mine went from 13.8 to 20.2!

Still getting my usual speed of 47 Meg down but my attainable line speed went from 95 to 63!

Anyone know what might of caused this?

Could be more people connecting to the cabinets as the companies sign up more people in your area to VDSL.

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#144 24-01-2014 5:54pm
Bavar

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tdonegan1990 wrote: »

Anyone else's line attenuation increase all of a sudden?!
Mine went from 13.8 to 20.2!

Still getting my usual speed of 47 Meg down but my attainable line speed went from 95 to 63!

Anyone know what might of caused this?

Which part of Dundalk you are living?

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#145 24-01-2014 6:05pm
KeRbDoG

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Chris The Hacker wrote: »

Could be more people connecting to the cabinets as the companies sign up more people in your area to VDSL.

Or water/rain getting into the cabling from cab<->house

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#146 24-01-2014 7:16pm
tdonegan1990

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Got it sorted. Forgot I switched my DSL cable from router to socket. My bad.

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#147 31-01-2014 3:03pm
fontdor

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I read on this thread that some people are using CAT 6 cable? I am a complete noob. Do I connect my modem to the CAT 6 cable? How does it work so I can get the maximum speed?

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#148 31-01-2014 5:44pm
briany

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fontdor wrote: »

I read on this thread that some people are using CAT 6 cable? I am a complete noob. Do I connect my modem to the CAT 6 cable? How does it work so I can get the maximum speed?

A CAT 6 cable is just an ethernet cable. An ethernet cable is what you use to connect your computer to the modem. Another type of cable is used to connect the modem to the wall socket which i presume is already in place.

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#149 31-01-2014 7:17pm
fontdor

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briany wrote: »

A CAT 6 cable is just an ethernet cable. An ethernet cable is what you use to connect your computer to the modem. Another type of cable is used to connect the modem to the wall socket which i presume is already in place.

Thank you very much.

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#150 03-02-2014 6:36pm
adox

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Line standard VDSL2
Channel type
None
Downstream line rate (kbit/s) 50174
Upstream line rate (kbit/s) 15359
Downstream SNR (dB) 16.1
Upstream SNR (dB) 17.6
Downstream line attenuation (dB) 13.7
Upstream line attenuation (dB) 5.1
Downstream output power (dBmV) 14
Upstream output power (dBmV) 0.7
Downstream CRC 800
Upstream CRC 0
Downstream FEC 5
Upstream FEC 0

Just installed and delighted with these results but wondering if the profile could be pushed higher?

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#151 03-02-2014 7:00pm
Chris The Hacker

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adox wrote: »

Line standard VDSL2
Channel type
None
Downstream line rate (kbit/s) 50174
Upstream line rate (kbit/s) 15359
Downstream SNR (dB) 16.1
Upstream SNR (dB) 17.6
Downstream line attenuation (dB) 13.7
Upstream line attenuation (dB) 5.1
Downstream output power (dBmV) 14
Upstream output power (dBmV) 0.7
Downstream CRC 800
Upstream CRC 0
Downstream FEC 5
Upstream FEC 0

Just installed and delighted with these results but wondering if the profile could be pushed higher?

I think you can. I think they put you on the 50Mb package like they did with this guy because you both have similar stats.

http://www.boards.ie/vbulletin/showpost.php?p=85538820&postcount=22

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