ADSL2+ Hardware
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ADSL2+ Hardware
18-03-2009 9:22 PM
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DSL Connection Details
DSL Line (Wire Pair): Line 1 (inner pair)
Protocol: G.DMT2 Annex A
Downstream Rate: 3071 kbps
Upstream Rate: 444 kbps
Channel: Interleaved
Current Noise Margin: 8.7 dB (Downstream) 16.1 dB (Upstream)
Current Attenuation: 53.2 dB (Downstream) 32.7 dB (Upstream)
Current Output Power: 19.0 dBm (Downstream) 12.4 dBm (Upstream)
DSLAM Vendor Information: Country: {0xB5} Vendor: {IFTN} Specific: {0xB871}
PVC Info: 0/38
I'm sure protocol is supposed to read G.DMT2+ Annex A but I have a spare vigor2800 at the office which I can try in the next few days.
That is also a strange upstream speed but maybe that is because adsl2+ has a more rate adaptive upstream???
Any suggestions/recommendations?
Re: ADSL2+ Hardware
18-03-2009 10:15 PM
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Try the other router.
Re: ADSL2+ Hardware
19-03-2009 12:58 PM
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With your attenuation you are likely to see only 200kbps improvement in downstream sync speed :(. The trial is based on uncapped upstream and you should see improvement there, with the upstream noise margin reducing as a consequence. That obviously hasn't happened with the present router.
Trying the Vigor seems the way forward.
Re: ADSL2+ Hardware
19-03-2009 4:16 PM
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ADSL2+ capable, i've seen figures on other forums showing synch speeds > 20000kbps.
With your attenuation however you're not going to see those sort of speeds.
What firmware do you have on your 2700 ?
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Re: ADSL2+ Hardware
20-03-2009 7:43 AM
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Standard BT Firmware
Current Software: 5.29.107.12
DSL Modem: 7.2.2
stats as follows for info
Current Rate 4674 kbs 450 kbs
Max Rate: 4674 kbs 1329 kbs
Current Noise Margin: 12.2 dB 20.3 dB
Current Attenuation: 48.2 dB 25.9 dB
Current Output Power: 19.5 dBm -31.0 dBm
What firmware is OP running?
Spock
Re: ADSL2+ Hardware
20-03-2009 11:01 PM
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See http://community.plus.net/forum/index.php/topic,75080.0.html
jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
Re: ADSL2+ Hardware
21-03-2009 9:55 AM
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Running the trial on a Speedtouch 585V6 on 6.2.16.3 I do have however a TG585V7 thats brand new, and never used. Would this be a better router to use on the trial than my older V6?
Re: ADSL2+ Hardware
21-03-2009 4:35 PM
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Quote I also have a BT 2700HGV and having just switched over my protocol shows G.DMT2+ Annex A
Well , thats my theory out the window then...
@spock, Did your downstream speed improve when going to ADSL2 ?
I've got a 2700HGV ( 2 actually ) and have been holding off applying for the trial until I have seen how
they perform. Mine are running firmware 5.29.107.12 ( the in use one ) and 5.29.117.6 ( the spare ).
The spare was taken out of service when the the BT upgrade to version 6 was talked about, to prevent
any upgrade until the dust has settled.
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Re: ADSL2+ Hardware
22-03-2009 12:42 AM
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Quote from: penfold Running the trial on a Speedtouch 585V6 on 6.2.16.3 I do have however a TG585V7 thats brand new, and never used. Would this be a better router to use on the trial than my older V6?
I believe the ST585v6 fully supports ADSL2+ so I doubt changing to the v7 would make a significant difference.
Re: ADSL2+ Hardware
22-03-2009 3:52 PM
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Stats as follows:
Down Sync - 3067
Up Sync - 440
SNR - 12
Attenuation - 46
Re: ADSL2+ Hardware
22-03-2009 4:04 PM
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I set the modulation to ADSL2+ Auto (G.992.5)
Re: ADSL2+ Hardware
22-03-2009 4:19 PM
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Seems some of us were provisioned onto the trial with a capped upload. Mine is also 440. James will sort it for you.
Re: ADSL2+ Hardware
22-03-2009 6:06 PM
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Quote from: MisterW @spock, Did your downstream speed improve when going to ADSL2 ?
yep, gained between 512kbps and 1mbps downstream compared to dslmax. Eventually I expect to get more cause thats with a target SNR on ADSL2+ of 12db, whereas on dslmax my target was 9db.
There have been a few resyncs since the move over, and much higher error counts. Don't know if you know about the 2wire management pages, there's a great DSL diagnostics one If you have a look at
http://gateway.2wire.net/xslt?PAGE=J42&THISPAGE=J01&NEXTPAGE=J42
Very useful info including every resync logged, and the bit loading graph. Check the Mgn1 column, this is the snr immediately after connection, i.e. your target snr.
Unless you've got a really stable router, i'd deffo give the 2700 a go, I've found it to be one of the most reliable at holding connections on a noisy line.
Spock
Re: ADSL2+ Hardware
22-03-2009 8:14 PM
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Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
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