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Standard User Ignitionnet
(fountain of knowledge) Mon 08-Mar-10 13:05:56
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Re: FTTC distance from cabinet speed deterioration


[re: pj500] [link to this post]
 
In reply to a post by pj500:
Can BT put ADSL2+ technology in the street cabinets so that I could get the speeds someone living 1.7 km from their exchange gets with ADSL2+?


Afraid not, VDSL 2 only from the cabinets at least for now.

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Standard User tonym
(member) Tue 23-Aug-11 18:18:26
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Re: FTTC distance from cabinet speed deterioration


[re: Ignitionnet] [link to this post]
 
I have seen some users on Infinity showing in there stats as being on a Profile of 8c

Using the fritzbox 7390 the stats show I and others that I know are on a Profile of 17a.

What is the difference.

tonym
Standard User DougM
(member) Tue 23-Aug-11 18:51:51
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Re: FTTC distance from cabinet speed deterioration


[re: tonym] [link to this post]
 
Profile 17a is the one recently approved that increases the available bandwidth from 8.5MHz to 17.6MHz, supporting a potential increase in data rates to 80Mbps downstream (based on BT's configuration, subject to the line characteristics).

This may indicate that BT has begun rolling out the update to their VDSL2 cabinets.

Could you post a screen shot of the Overview, DSL and Spectrum tabs from the DSL Information section of the Fritz!Box GUI?

-==-
DougM


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Standard User tonym
(member) Tue 23-Aug-11 19:04:05
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Re: FTTC distance from cabinet speed deterioration


[re: DougM] [link to this post]
 
In reply to a post by DougM:
Profile 17a is the one recently approved that increases the available bandwidth from 8.5MHz to 17.6MHz, supporting a potential increase in data rates to 80Mbps downstream (based on BT's configuration, subject to the line characteristics).

This may indicate that BT has begun rolling out the update to their VDSL2 cabinets.

Could you post a screen shot of the Overview, DSL and Spectrum tabs from the DSL Information section of the Fritz!Box GUI?


At the moment, the home Hub is back on. I was using the new official firmware and snr started dropping from 6 (day time) to 4, and at night from 4 down to 2 which caused a resync. I might go back to the beta firmware which was at least a stable snr.

So at the moment no screenshots, but can give you some stats from a couple of days ago:

This is from the DSL Info:

Max. DSLAM throughput kbit/s 40000 10000
Min. DSLAM throughput kbit/s 20000 5000
Attainable throughput kbit/s 35888 13553
Current throughput kbit/s 35888 9984

Latency 0 ms 0 ms
Bitswap on on
Impulse Noise Protection 0.0 0.0

Signal-to-noise ratio dB 6 11
Line attenuation dB 10 -
Carrier record A43 A43
Profile 17a

FRITZ!Box 198 2 11 542 2 26
DSL central exchange 8 0 0 0 0.14 0

I will let the hub run for a few days and go back to the beta firmware, then if you need any screenshots let me know

tonym
Standard User tonym
(member) Sun 28-Aug-11 13:12:44
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Re: FTTC distance from cabinet speed deterioration


[re: DougM] [link to this post]
 
In reply to a post by DougM:
Profile 17a is the one recently approved that increases the available bandwidth from 8.5MHz to 17.6MHz, supporting a potential increase in data rates to 80Mbps downstream (based on BT's configuration, subject to the line characteristics).

This may indicate that BT has begun rolling out the update to their VDSL2 cabinets.

Could you post a screen shot of the Overview, DSL and Spectrum tabs from the DSL Information section of the Fritz!Box GUI?


Sorry about the delay , been away for a couple of days.
These are the images of overview/DSL/Spectrum/and Statistics, but show an uptime of just over 40mins(being doing some electrical work).

Overview: http://postimage.org/image/hq83aqxw/
DSL: http://postimage.org/image/hqd1wsf8/
Spectrum: http://postimage.org/image/hqi0itwk/
Statistics: http://postimage.org/image/hqomo7vo/

tonym
Standard User Zarjaz
(knowledge is power) Sun 28-Aug-11 14:34:46
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Re: FTTC distance from cabinet speed deterioration


[re: tonym] [link to this post]
 
Odd, I have not come across any 17a profile stuff, and in fact if it were, surely you'd be seeing a higher sync rate ?

Standard User tonym
(member) Mon 29-Aug-11 16:02:30
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Re: FTTC distance from cabinet speed deterioration


[re: Zarjaz] [link to this post]
 
In reply to a post by Zarjaz:
Odd, I have not come across any 17a profile stuff, and in fact if it were, surely you'd be seeing a higher sync rate ?


There is another user who posts on here, but I will leave the name out, who is using a Fitzbox 7390 and is on 17a as well .

My syn started at 38717 with the HH3 and did drop after a month and using the Fritz dropped about another 1000

The other user I mentioned is on a brand new Infinity install with these stats:

Max. DSLAM throughput kbit/s 40000 7200
Min. DSLAM throughput kbit/s 20000 3600
Attainable throughput kbit/s 40104 15124
Current throughput kbit/s 39984 7200

Latency 0 ms 8 ms
Bitswap on on
Impulse Noise Protection 0.0 4.0

Signal-to-noise ratio dB 4 16
Line attenuation dB 5 -
Carrier record A43 A43
Profile 17a

tonym
Standard User RobertoS
(sensei) Mon 29-Aug-11 16:12:50
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Re: FTTC distance from cabinet speed deterioration


[re: tonym] [link to this post]
 
There is another user who posts on here, but I will leave the name out,
Why leave it out?
who is using a Fitzbox 7390 and is on 17a as well
Or the Fritz box is mis-reporting tongue.

My broadband basic info/help site - www.robertos.me.uk
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Standard User Zarjaz
(knowledge is power) Mon 29-Aug-11 18:25:13
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Re: FTTC distance from cabinet speed deterioration


[re: tonym] [link to this post]
 
So you are both using a Fritz box modem/router, and both show 17a ? Surely mis-reported by the Fritz box then ? I have fitted 100's of these circuits, and the only ones that don't show 8a are the 'non configured' ports on the DSLAM.

Standard User tonym
(member) Mon 29-Aug-11 18:40:12
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Re: FTTC distance from cabinet speed deterioration


[re: RobertoS] [link to this post]
 
In reply to a post by RobertoS:
There is another user who posts on here, but I will leave the name out,
Why leave it out?
who is using a Fitzbox 7390 and is on 17a as well
Or the Fritz box is mis-reporting tongue.


To the first: because he has not posted that information to this forum, that will be up to him to make his name known.

To the second: Maybe the Fritzbox is mis-reporting, all I can tell you is what it shows in the stats.

tonym
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