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Standard User plankton
(member) Sun 09-Jul-17 15:08:20
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VDSL 80/20 Cap


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Just curious ....... I'm lucky enough to have a OR FTTC cab in spitting distance and get "Full Speed". My line though says that it can cope with 128 Mbit/s / 28.7 Mbit/s but it's capped at 80/20. I get that BT use VDSL2 with a 17a profile and this has a max downstream rate of 100 Mbit/s. I've friends is Europe and Australia getting 100 Mbit/s from FTTC VDSL2 17a with real world rates of 94 Mbit/s download. Is this 80 m/bit cap a technical one giving some other benefits or a product marketing feature?

BT Infinity 2 20/80 cool
Standard User lee111s
(fountain of knowledge) Sun 09-Jul-17 17:45:19
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Re: VDSL 80/20 Cap


[re: plankton] [link to this post]
 
With G.Fast now being rolled out and improvements being worked on, I doubt Openreach will lift the 80/20 caps on VDSL2 as it would then cut into the G.Fast ranges.
Standard User plankton
(member) Sun 09-Jul-17 19:09:57
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Re: VDSL 80/20 Cap


[re: lee111s] [link to this post]
 
In reply to a post by lee111s:
With G.Fast now being rolled out and improvements being worked on, I doubt Openreach will lift the 80/20 caps on VDSL2 as it would then cut into the G.Fast ranges.


So are you saying that the 80 Mbit/s cap is a product marketing feature and not a technical one?

BT Infinity 2 20/80 cool


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Standard User lee111s
(fountain of knowledge) Sun 09-Jul-17 19:41:46
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Re: VDSL 80/20 Cap


[re: plankton] [link to this post]
 
Yes, but you already knew that, given operators on the continent don't have it capped at 80/20 wink

Edited by lee111s (Sun 09-Jul-17 19:42:03)

Standard User adslmax
(knowledge is power) Sun 09-Jul-17 20:52:20
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Re: VDSL 80/20 Cap


[re: plankton] [link to this post]
 
Nope, Openreach will never uncapped VDSL2 80/20. The only way to get uncapped is to order FTTPoD or wait for G.Fast.

Edited by adslmax (Sun 09-Jul-17 20:52:57)

Standard User Zarjaz
(eat-sleep-adslguide) Sun 09-Jul-17 21:03:05
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Re: VDSL 80/20 Cap


[re: adslmax] [link to this post]
 
But their FTTPoD offering is capped also ??

Standard User lee111s
(fountain of knowledge) Sun 09-Jul-17 21:14:53
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Re: VDSL 80/20 Cap


[re: Zarjaz] [link to this post]
 
As is G.Fast right? wink
Standard User plankton
(member) Mon 10-Jul-17 10:41:55
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Re: VDSL 80/20 Cap


[re: lee111s] [link to this post]
 
In reply to a post by lee111s:
Yes, but you already knew that, given operators on the continent don't have it capped at 80/20 wink


I know elsewhere they offer higher speed VDSL2 17a. BUT what I don't know is why ....... Is there an upside to offering 80/20 e.g. does the lower power reduce crosstalk so giving people further away better speeds? Is the cap reason a marketing one. ie you can claim that 20% off people get our top speed or some such thing? I'd just really like to know what the rationale is for 80/20.

BT Infinity 2 20/80 cool
Administrator MrSaffron
(staff) Mon 10-Jul-17 11:07:53
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Re: VDSL 80/20 Cap


[re: plankton] [link to this post]
 
Because so few are likely to get beyond 80 Mbps sync that its not worth it as providers are not going to be able to exploit it in marketing due to advertising rules that exist in the UK

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User lee111s
(fountain of knowledge) Mon 10-Jul-17 11:08:57
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Re: VDSL 80/20 Cap


[re: plankton] [link to this post]
 
Likely a combination of both a small number of customers would benefit (and yes likely less power needed) and the fact that G.Fast has always been the next step and will offer speeds of 81-330meg (Openreach/Wholesale won't offer it if the speed estimate is below 80mbps as far as I know).

I think only 10% of lines are close enough to achieve 80/20, only 5% could achieve 100/25 on VDSL2 17a.
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