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Standard User chris6273
(member) Wed 21-Dec-11 05:10:17
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Maximum Sync Speed & IP Profile with BT Retail ADSL2+?


[link to this post]
 
Hi guys,

My exchange is hopefully going to be upgraded 2 months late, next month and I am curious as to what kind of throughput I will be able to get.

I currently have a 13.0dB downstream attenuation reading (I am aware this can jump up 3-4dB) and sync at 8128/448.

I have a DG834GT so if I manage to tweak my Target Noise Ratio, what is the Maximum Sync Speed anyone can get out of ADSL2+ with BT Retail, what IP Profile will this result in and what kind of maximum throughput figures would I be looking at if I can get the maximum sync speed/IP Profile (I know I probably won't be able to get it, but we'll see. This is only a question regarding the possible speeds)?

Thanks for your answers

-------------------------------------------------------------------
My Broadband Speed Test

Downstream Upstream
Connection Speed 8128 kbps 448 kbps
Line Attenuation 13.0 db 10.0 db
Noise Margin 16.8 db 24.0 db
Max(Kbps): 11616 1056
Standard User huwwatkins
(member) Wed 21-Dec-11 09:12:33
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Re: Maximum Sync Speed & IP Profile with BT Retail ADSL2+?


[re: chris6273] [link to this post]
 
I would be suprised if you didn't get the full 24000kbps sync with the downstream attenuation figure. The ip profile for that is 21000kbps
Standard User chris6273
(member) Wed 21-Dec-11 17:54:20
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Re: Maximum Sync Speed & IP Profile with BT Retail ADSL2+?


[re: huwwatkins] [link to this post]
 
Oh right, so the maximum sync speed on BT Retail's ADSL2+ Product is 24000Kbps? Only reason why I ask is because I never come across anyone near to that and the product is labelled 'Up to 20Mbps'.

Thanks though smile. I hope it is 24Mbps

-------------------------------------------------------------------
My Broadband Speed Test

Downstream Upstream
Connection Speed 8128 kbps 448 kbps
Line Attenuation 13.0 db 10.0 db
Noise Margin 16.8 db 24.0 db
Max(Kbps): 11616 1056


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Standard User RobertoS
(sensei) Wed 21-Dec-11 18:09:37
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Re: Maximum Sync Speed & IP Profile with BT Retail ADSL2+?


[re: chris6273] [link to this post]
 
Many ISPs quote a maximum of 20Mbps on 24Mbps connections. (I looked for the BT figure on their website and didn't find it). Some do however cap the connection speed to 20Mbps.

It gets them off all the hooks of people misunderstanding, and in any case those able to connect at over 20Mbps are a very small proportion. I agree though that you will, if it is allowed to. You won't need any tweaking.

My broadband basic info/help site - www.robertos.me.uk
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"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
Standard User chris6273
(member) Wed 21-Dec-11 18:24:13
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Re: Maximum Sync Speed & IP Profile with BT Retail ADSL2+?


[re: RobertoS] [link to this post]
 
Thanks for your answers. What sort of throughput speeds can one get with a 21000Kbps IP Profile, without taking into account congestion.etc?

-------------------------------------------------------------------
My Broadband Speed Test

Downstream Upstream
Connection Speed 8128 kbps 448 kbps
Line Attenuation 13.0 db 10.0 db
Noise Margin 16.8 db 24.0 db
Max(Kbps): 11616 1056
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