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Standard User AstroBenny
(newbie) Thu 31-Mar-16 12:41:02
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Is there a difference between all BT Providers?


[link to this post]
 
I understand that Plusnet/BT/Zen/Talktalk/Sky all operate under the BT Network apart from Virgin Media. Does that mean that speeds will always be the same between these providers? Are there any differences?
Standard User lee111s
(committed) Thu 31-Mar-16 12:57:52
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Re: Is there a difference between all BT Providers?


[re: AstroBenny] [link to this post]
 
The quoted ISP's all use Openreach's physical network to the exchange so in terms of sync speed, there should be zero difference between the providers (some modems however can perform better than others, some ISP provided modems may perform worse or better than others).

Sky, Talk Talk and a number of others use their own backhaul network though beyond the exchange. Where as BT and PlusNet, amongst others, use BT Wholesale's backhaul network.

This CAN make a difference depending on how much capacity each ISP has, or has "bought" for exchange areas. I usually only affects peak speeds but almost every ISP will suffer "hot VP's" in different areas from time to time.
Standard User BatBoy
(sensei) Thu 31-Mar-16 12:58:56
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Re: Is there a difference between all BT Providers?


[re: AstroBenny] [link to this post]
 
In reply to a post by AstroBenny:
I understand that Plusnet/BT/Zen/Talktalk/Sky all operate under the BT Network
That's not correct.


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Standard User ian72
(eat-sleep-adslguide) Thu 31-Mar-16 13:09:20
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Re: Is there a difference between all BT Providers?


[re: lee111s] [link to this post]
 
ISPs also have their own networks and interconnects to the Internet - these can run hot as well.

Any ISP can also, I believe, choose how much backhaul bandwidth they buy so any ISP could be running the backhaul hot no matter where they buy it from.

And, on some products ISPs can choose characteristics of the line (eg ADSL) and therefore sync speeds can be different between ISPs on those products.
Standard User ian72
(eat-sleep-adslguide) Thu 31-Mar-16 13:09:44
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Re: Is there a difference between all BT Providers?


[re: BatBoy] [link to this post]
 
In reply to a post by BatBoy:
In reply to a post by AstroBenny:
I understand that Plusnet/BT/Zen/Talktalk/Sky all operate under the BT Network
That's not correct.


Would help if you would elaborate...
Standard User lee111s
(committed) Thu 31-Mar-16 13:14:49
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Re: Is there a difference between all BT Providers?


[re: ian72] [link to this post]
 
In reply to a post by ian72:
And, on some products ISPs can choose characteristics of the line (eg ADSL) and therefore sync speeds can be different between ISPs on those products.


Being on the fibre board I just assume the OP was referring to FTTC/P from Openreach.

I agree with all of your other points too smile
Standard User BatBoy
(sensei) Thu 31-Mar-16 13:14:57
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Re: Is there a difference between all BT Providers?


[re: ian72] [link to this post]
 
For FTTC, Openreach own the Local Loop, i.e. the connection from your house to the exchange. From the exchange to the ISP, the ISP can either use BT backhaul, or their own backhaul, or some 3rd party's backhaul.
Standard User ian72
(eat-sleep-adslguide) Thu 31-Mar-16 13:33:05
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Re: Is there a difference between all BT Providers?


[re: BatBoy] [link to this post]
 
In reply to a post by BatBoy:
For FTTC, Openreach own the Local Loop, i.e. the connection from your house to the exchange. From the exchange to the ISP, the ISP can either use BT backhaul, or their own backhaul, or some 3rd party's backhaul.


Fair enough, same thoughts I was having then.
Standard User Chrysalis
(legend) Thu 31-Mar-16 13:38:35
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Re: Is there a difference between all BT Providers?


[re: AstroBenny] [link to this post]
 
There is also 3 different DLM profiles, not all these isp's may use the same one, the DLM profile affects how aggressive DLM is when there is line instability.

Sky Fibre Pro BQM - IPv4
Standard User lee111s
(committed) Thu 31-Mar-16 13:49:42
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Re: Is there a difference between all BT Providers?


[re: Chrysalis] [link to this post]
 
That was the case for 21CN DLM I believe but for Openreach's FTTC that's not the case. I think Openreach only have 1 mode for DLM.
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