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just got updated to 8meg; some strange speeds

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just got updated to 8meg; some strange speeds

hey all,

erm before i make this post please accept my apology as i have not been reading up on the forums until recently where i found out my line was going to be upgraded to 8meg.

Well today it happened; 8meg yay for me ....well actually i sync at 7.6meg so my first question is why not the full 8meg? Also when i ran a few speed tests i am getting speeds of 2meg? Finally what mtw/rwin is everyone using?

Noise margin: +15.0 dB / +12.1 dB
attenuation: +13.0dB / +24.5 dB

^^
from that what kind of speeds shud i expect?
10 REPLIES
Midville
Grafter
Posts: 376
Registered: 05-04-2007

just got updated to 8meg; some strange speeds

I am no expert however there are the overheads; the maximum people will see is just over 7Mb. Also It takes a while to condition your line (10 days or so) and sometimes Pnet don't always get the reports back -therefore the staff might have to press the 'button'.

Your stable rate can be found here http://portal.plus.net/my.html?action=stable_rate&pn_session

It is all dependent on the condition of your line to the exchange, normally the greater the distance away from the exchange the lower your Dload speed will be, but thats not always the case.
N/A

just got updated to 8meg; some strange speeds

ah, ok i got this:
Your current broadband speed is 2000 Kbps

lol 2meg? or as in 2meg downloading *confused*
Midville
Grafter
Posts: 376
Registered: 05-04-2007

just got updated to 8meg; some strange speeds

At this moment in time Pnet have you down for 2Mb, however this should change over time (10 days). Once the reports hit Pnet, they will update your stable rate. This is how I believe it happens....sometimes Pnet dont get the reports from BT for whatever reason.
Midville
Grafter
Posts: 376
Registered: 05-04-2007

just got updated to 8meg; some strange speeds

Here is a calculator for your estimated Maxdsl speed, however these might not be 100% correct with the results. Use it for guidance only....

http://212.23.23.177/calc.htm
N/A

just got updated to 8meg; some strange speeds

I got the same as you

Below may help you.

http://www.kitz.co.uk/adsl/maxdsl2.htm
"With Datastream products, BTw will collate the relevant information but not send it over to the bRAS since this equipment is owned by the DS provider. Instead the information is sent in a report to the DS ISPs so that they can apply the speed to their own bRAS. Once the 10 days have passed BT will also advise the DS provider the stable rate."

"its not uncommon for some users to find that they have been profiled at 2Mb speeds for anything up to the full 10 days."

"Personal observations tend to show that it is the better lines that seem to have a delay in setting the Data Rate on the bRAS profile and are "stuck" with their old 2Mb speed possibly because their SNR is better and they suffer from fewer fluctuations, therefore it takes longer for the kit to realise that a change has occurred. :/"
N/A

just got updated to 8meg; some strange speeds

hey all,

thx for the replies and not flaming me Wink

Here is a calculator for your estimated Maxdsl speed, however these might not be 100% correct with the results. Use it for guidance only....

http://212.23.23.177/calc.htm

^^
ye it says i can get the full 8meg and thx for the info mackenny.

Just another question, now that i have been moved onto the updated line etc does my package somehow change? I was originally on the 2meg home surf package (this restricted p2p) and am currently paying 18.99...so does the price/terms and conditions change?
Community Veteran
Posts: 14,469
Registered: 30-07-2007

just got updated to 8meg; some strange speeds

Your product T&C remain exactly as they are now with the same restrictions / SUP / traffic management. All that changes is your speed, which should go up (hopefully).
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just got updated to 8meg; some strange speeds

ah thx again Smiley and sorry if these questions had been asked before Wink

so umm what mtu/rwin is recommended, anyone been fiddling with the mtu and rwin rates? post your results! Smiley
N/A

just got updated to 8meg; some strange speeds

see this thread https://portal.plus.net/central/forums/viewtopic.php?t=44606

Highlights to me was

Tool :http://www.dslreports.com/tweaks

and people with a good line seemed to get best results with MTU/RWIN of 1500/172280. (but that might just be how I read it)

lastly plusnet forum seems nicely free of flaming and full of helpful people. (If which I am thankful for)
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just got updated to 8meg; some strange speeds

Quote
people with a good line seemed to get best results with MTU/RWIN of 1500/172280. (but that might just be how I read it)


It was a very limited sample size; I suggested those settings as they work for me and one other person found they improved his throughput slightly. Another two users found an MTU of 1430 best for them, and IIRC yet another preferred 1472. There's no magic one-size-fits-all number I'm afraid. Smiley

My own method of testing (when I do any) is:

Run tests off-peak to minimise network congestion.

Determine max MTU by "ping -f -l <packet_size> <destination_address>" (MTU = largest data packet unfragmented + 28 )

Carry out speed tests using this MTU and various RWin settings (RWin should be an even multiple of the MSS, which is MTU - 40)

When an approx. range for RWin has been found, I use DSLReports' TweakTest to see which setting works with the minimum number of stalls/errors in the data flow. Too large an RWin can seriously damage your efficiency.

Your computer also has a bearing on the ideal settings e.g. I found that I was able increase my RWin substantially when I upgraded my ancient 1Ghz Celeron-based system to a modern dual-core system with much faster internal data transfer.

Alan