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uk.telecom.broadband (UK broadband) (uk.telecom.broadband) Discussion of broadband services, technology and equipment as provided in the UK. Discussions of specific services based on ADSL, cable modems or other broadband technology are also on-topic. Advertising is not allowed.

Uncontended bandwidth - upload between 256Kb-512Kb



 
 
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  #1  
Old December 17th 04, 02:50 PM posted to uk.telecom.broadband
hals_left
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Default Uncontended bandwidth - upload between 256Kb-512Kb

What companies/products fits this criteria above.
We are wanting to host a site for 25 users and lease line is too much,
SDSL is n/a and broadband all seems to be high contentions.

Thanks.
  #2  
Old December 17th 04, 04:36 PM posted to uk.telecom.broadband
Andy Burns
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Posts: 113
Default Uncontended bandwidth - upload between 256Kb-512Kb

hals_left wrote:

What companies/products fits this criteria above.


ADSL with 256Kb upload? None using a single PSTN line.

Several (e.g aa.nu) will bond multiple lines to increase both upload and
download speeds.

But expect to pay by the limb if you want it uncontended, though
demon.net and perhaps others offer 1:1 or 5:1 contention, not sure if
they also do bonding to get you above 256Kb though.

You're getting into the terrirory where eveyone wants to protect their
leased line revenue.







  #3  
Old December 17th 04, 05:55 PM posted to uk.telecom.broadband
Phil Thompson
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Default Uncontended bandwidth - upload between 256Kb-512Kb

On Fri, 17 Dec 2004 16:36:59 +0000, Andy Burns
wrote:

ADSL with 256Kb upload? None using a single PSTN line.


unless its unbundled by Bulldog or Easynet

Phil
--
spamcop.net address commissioned 18/06/04
Come on down !
  #4  
Old December 17th 04, 06:09 PM posted to uk.telecom.broadband
Andy Burns
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Posts: 113
Default Uncontended bandwidth - upload between 256Kb-512Kb

Phil Thompson wrote:

unless its unbundled by Bulldog or Easynet


Hadn't realised they were faster up as well as down ...

Anyone know what Bulldog's "up to 400Kb/s upload" means in practice? Or
indeed why Bulldog restrict to 400Kb/s when Easynet offer 768kb/s?
  #7  
Old December 18th 04, 01:56 PM posted to uk.telecom.broadband
Trev
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Default Uncontended bandwidth - upload between 256Kb-512Kb


"hals_left" wrote in message
om...
What companies/products fits this criteria above.
We are wanting to host a site for 25 users and lease line is too much,
SDSL is n/a and broadband all seems to be high contentions.

Thanks.

You might want to check out Pipex Wireless depending on your location


  #8  
Old December 18th 04, 05:42 PM posted to uk.telecom.broadband
Sunil Sood
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Default Uncontended bandwidth - upload between 256Kb-512Kb

"Andy Burns" wrote in message

Phil Thompson wrote:

unless its unbundled by Bulldog or Easynet


Hadn't realised they were faster up as well as down ...

Anyone know what Bulldog's "up to 400Kb/s upload" means in practice?


400K - Its described as "up to" to cover themselves - as all ISPs do (i.e.
up to 512K etc)

Or indeed why Bulldog restrict to 400Kb/s when Easynet offer 768kb/s?


Bulldog do offer upto 512K upload on their business LLU products. However, a
lower upload speed means more lines will be in spec..

Easynet's consumer subsidiary (UKOnline) also limit their upload to 400K..
though they do offer upto 8MB download

Regards
Sunil


  #9  
Old December 18th 04, 05:53 PM posted to uk.telecom.broadband
stephen
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Default Uncontended bandwidth - upload between 256Kb-512Kb

"Phil Thompson" wrote in message
...
On 17 Dec 2004 06:50:40 -0800, (hals_left) wrote:

and broadband all seems to be high contentions.


you have to ask what contention effect is seen in practice. ADSLguide
speed tests, for example, show averages of fairly large samples up at
around 90% of rated speed.


Agreed. and since uplinks run slower but the DSLAM backhaul is symmetric
bandwidth (and uplinks tend to be less heavily loaded) - the effective
contention on uplink is better.

Rumour is that 50:1 Home products are actually contended at more like
15:1 in practice.


this may well be due to the large number of DSLAMs. Each ISP buys job lots
of backhaul per DSLAM - so if they only have 7 users on that DSLAM, 7:1 is
as poor as the ISP can make it.....

Evan then the "average" line spends most of its time idle, so you get a lot
of statistical gain.

A pair of 2M 20:1 ADSL circuits into a load
balancing router would probably be fine for 25 users assuming they
aren't all maxing out their connection continually, having 2 circuits
gets you 512k of upload to share, but one user would only see 256k max
(unless you went for 2 bonded circuits).


This is true so long as the ISP has enough users that you dont have your 2
circuits contending with themselves all the time.

If you 2 * 2M feeds, and the DSLAM is configured with a single 2M aggregate
for your ISP and that ADSL speed, then you wont get much extra throughput
over a single ADSL link.

Phil
--
spamcop.net address commissioned 18/06/04
Come on down !

--
Regards

Stephen Hope - return address needs fewer xxs


  #10  
Old December 18th 04, 07:06 PM posted to uk.telecom.broadband
Andy Burns
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Posts: 113
Default Uncontended bandwidth - upload between 256Kb-512Kb

Sunil Sood wrote:

400K - Its described as "up to" to cover themselves - as all ISPs do (i.e.
up to 512K etc)


Wonderd if it was like RADSL and varied on line quality
 




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