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Standard User peterthepiper
(experienced) Sun 04-Sep-11 21:58:14
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Speed test


[link to this post]
 
I'm considering changing to BT broadband (normal) they say I can expect 2.7meg wheras I currently get on average about 6meg. How accurate are the BT line speed predictions. I don't want to take the risk if there is no chance of getting a similar speed.
Standard User XRaySpeX
(knowledge is power) Sun 04-Sep-11 22:43:54
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Re: Speed test


[re: peterthepiper] [link to this post]
 
Post you current router stats and which exchange? Who are you with at the moment and which package?

BT and most ISPs tend to underestimate speeds in their predictions.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 17 Meg Untweaked 19 Meg Tweaked WBC
Standard User adebov
(eat-sleep-adslguide) Mon 05-Sep-11 08:40:27
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Re: Speed test


[re: peterthepiper] [link to this post]
 
The BT checker gives an estimate (and a very conservative one, at that).
In reality it seems nothing more than a wild guess.

I get this result (telling me what speed I can get): -
Our test also indicates that your line currently supports an estimated ADSL2+ broadband line speed of 2Mbps; typically the line speed would range between 1Mbps and 3.5Mbps

My line speed is actually around 4.7Mbps (give or take 0.3Mbps) - so way more than BT's stab in the dark guess of 2Mbps.
My data speed is normally at least twice the BT's guess for the line speed alone.

If you're currently getting 6Mbps, that's what you'll get with BT.
Unless.....You're currently getting that speed because you've tweaked your noise margin down (which tends to upset BT's systems, resulting in a higher margin).

If you're not on an unbundled product (e.g. Sky, Talk-Talk, BE, O2) and are already on a BT Wholesale connection, your connection speed will remain the same (as all that will happen is BT will direct your data-stream through their own networks, rather than your current ISP.

Ade

ADSL2+ with BE
DL Sync around 4.8Mbps
UL Sync 1088kbps

DG834GT with DGTeam firmware


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Standard User peterthepiper
(experienced) Mon 05-Sep-11 09:01:22
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Re: Speed test


[re: XRaySpeX] [link to this post]
 
Link Information

Uptime: 23 days, 11:38:59
Modulation: G.992.1 annex A
Bandwidth (Up/Down) [kbps/kbps]: 448 / 7,648
Data Transferred (Sent/Received) [GB/GB]: 4.31 / 22.19
Output Power (Up/Down) [dBm]: 12.0 / 19.5
Line Attenuation (Up/Down) [dB]: 21.0 / 37.0
SN Margin (Up/Down) [dB]: 22.0 / 8.5
Vendor ID (Local/Remote): TMMB / TSTC
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 86 / 0
FEC Errors (Up/Down): 0 / 1,041,747,922
CRC Errors (Up/Down): 0 / 11,891
HEC Errors (Up/Down): 0 / 9,760

AAISP
Standard User peterthepiper
(experienced) Mon 05-Sep-11 09:01:57
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Re: Speed test


[re: adebov] [link to this post]
 
Thanks, that cheers me up no end.
Standard User XRaySpeX
(knowledge is power) Mon 05-Sep-11 13:54:55
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Re: Speed test


[re: peterthepiper] [link to this post]
 
You'll get exactly the same if your exchange is only 20CN or you will get about 9-10 Meg if it is 21CN. But as you didn't post your exchange, I can't tell.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 17 Meg Untweaked 19 Meg Tweaked WBC
Standard User peterthepiper
(experienced) Mon 05-Sep-11 14:53:34
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Re: Speed test


[re: XRaySpeX] [link to this post]
 
Forgot that, exchange is Baldslow, east sussex which is not down for 21c yet on samknows.
Standard User peterthepiper
(experienced) Sat 10-Sep-11 08:28:09
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Re: Speed test


[re: peterthepiper] [link to this post]
 
Well, bit the bullet and migrated from AAISP which imho is one of the best of the bunch. The main reason is the saving each month with the BT openzone being important.
Standard User mattcapper
(newbie) Mon 12-Sep-11 21:26:03
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Re: Speed test


[re: peterthepiper] [link to this post]
 
peterthepiper,

I have just done the same, chosen to migrate from AAisp to BT. Like you say, i have found AAisp brilliant, but looking to save some dosh and also attracted by the btfon/openzone stuff.

My BT service is due to start on Wednesday so fingers crossed. I was with BT for a while (going back about 3 or 4 years ago now) and remember them being just fine.

Matt.
Standard User peterthepiper
(experienced) Wed 14-Sep-11 19:17:49
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Re: Speed test


[re: mattcapper] [link to this post]
 
Mines due on 19th the same day that DD's line is set in operation by sky. She went there because her exchange is 1/4 mile away and will get up to 12meg.
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