How is Plusnet estimated line speed calculated
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How is Plusnet estimated line speed calculated
17-12-2010 1:45 PM
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Quote Estimated line speed:
4.0 - Checked on 2010-12-09 04:04:44
Current line speed:
3500
Fact is that to achieve an IP profile of 4000kbps I would need a sync rate in excess of 4544kbps and given my current stats are
Noise Margin: 5.9 dB
Connection Rate: 4160 Kbps
with no line drops for 27 days and a noise margin which hasn't moved outside the 4.7 - 6.9dB range since the 19th November
Re: How is Plusnet estimated line speed calculated
17-12-2010 3:22 PM
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The estimate is derived from the BT availability checker.
Jojo
Re: How is Plusnet estimated line speed calculated
17-12-2010 3:51 PM
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How does that calculate it and why has it increased whereas my attenuation hasn't changed
Note sync speed hasn't dropped below 4000 since mid September and the maximum ever was 4480kbps
Just to add - if the BT value is sync speed then it needs to be clearly differentiated from Current Line Speed which is the IP profile and typically 500+ kbps lower
Re: How is Plusnet estimated line speed calculated
17-12-2010 4:08 PM
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Attenuation figs can also vary , due to Router chipset & how their read data line data.
Your attenuation will be higher if your paired an IFTN router chipset to your IFTN DSLAM. On the other hand a Trend chip would lower it , but at loss of stability
thx f9o
Re: How is Plusnet estimated line speed calculated
17-12-2010 4:10 PM
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Re: How is Plusnet estimated line speed calculated
17-12-2010 4:35 PM
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The figures from the availability checker is apparently sync rate and not profile speed.
Jojo
Re: How is Plusnet estimated line speed calculated
17-12-2010 4:42 PM
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Do you want me to raise it under feedback or will you cover it with the relevant department
Re: How is Plusnet estimated line speed calculated
17-12-2010 5:03 PM
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Re: How is Plusnet estimated line speed calculated
17-12-2010 6:00 PM
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When my daughter started with PN broadband the estimate was 6000, actual 6500. A few weeks ago she added Homephone, and the estimate is now 3500, actual 7000.
Zen FTTC 40/10 + Digital Voice FRITZ!Box 7530
BT technician (Retired)
Re: How is Plusnet estimated line speed calculated
17-12-2010 10:30 PM
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Maybe BT's TCP/ATM calcs are out of wack.....?
One wonders if they've been fiddling around due to FTTC.....
Re: How is Plusnet estimated line speed calculated
18-12-2010 11:46 AM
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My estimate ( on ADSL2+) changed from 13Mb to 3.5Mb and now back to 15Mb. The initial change coincided with FTTC going live on my cab.
My line's been pretty constant at 8Mb on 20CN.
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.
Re: How is Plusnet estimated line speed calculated
18-12-2010 6:34 PM
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Puddy
Re: How is Plusnet estimated line speed calculated
18-12-2010 6:36 PM
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Re: How is Plusnet estimated line speed calculated
19-12-2010 9:40 AM
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