Networking Forums

Networking Forums > Computer Networking > Broadband > Uncontended bandwidth - upload between 256Kb-512Kb

Reply
Thread Tools Display Modes

Uncontended bandwidth - upload between 256Kb-512Kb

 
 
hals_left
Guest
Posts: n/a

 
      12-17-2004, 01:50 PM
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.
 
Reply With Quote
 
 
 
 
Andy Burns
Guest
Posts: n/a

 
      12-17-2004, 03:36 PM
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.







 
Reply With Quote
 
Phil Thompson
Guest
Posts: n/a

 
      12-17-2004, 04:55 PM
On Fri, 17 Dec 2004 16:36:59 +0000, Andy Burns
<(E-Mail Removed)> 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 !
 
Reply With Quote
 
Andy Burns
Guest
Posts: n/a

 
      12-17-2004, 05:09 PM
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?
 
Reply With Quote
 
Muxton
Guest
Posts: n/a

 
      12-17-2004, 06:13 PM
On 17 Dec 2004 06:50:40 -0800, (E-Mail Removed) (hals_left) wrote:

>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.


IPStream-based SDSL carries a 10:1 contention ratio, so no-go there,
and not available anyway, as you say.

Datastream-based products - can't comment.

Some LLU based products may be advertised as uncontended, but will the
LLU providers make a cast-iron guarantee, backed up with SLAs and SLGs
that your connection is totally uncontended from your premises to
their Internet borders? I doubt it.

The product that fits your technical requirements is a leased line,
but it doesn't fit your budget. How much have you been quoted, out of
interest?


 
Reply With Quote
 
Phil Thompson
Guest
Posts: n/a

 
      12-18-2004, 09:07 AM
On 17 Dec 2004 06:50:40 -0800, (E-Mail Removed) (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.

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

Phil
--
spamcop.net address commissioned 18/06/04
Come on down !
 
Reply With Quote
 
Trev
Guest
Posts: n/a

 
      12-18-2004, 12:56 PM

"hals_left" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) 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


 
Reply With Quote
 
Sunil Sood
Guest
Posts: n/a

 
      12-18-2004, 04:42 PM
"Andy Burns" <(E-Mail Removed)> wrote in message
news:41c32059$0$78001$(E-Mail Removed)
> 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


 
Reply With Quote
 
stephen
Guest
Posts: n/a

 
      12-18-2004, 04:53 PM
"Phil Thompson" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> On 17 Dec 2004 06:50:40 -0800, (E-Mail Removed) (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


 
Reply With Quote
 
Andy Burns
Guest
Posts: n/a

 
      12-18-2004, 06:06 PM
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
 
Reply With Quote
 
 
 
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
ISP attituted to upload bandwidth usage Michael Chare Broadband 13 10-30-2007 07:34 PM
ADSL uncontended versus SDSL contended Rob Nicholson Broadband 5 05-03-2006 11:03 PM
Squid limiting upload bandwidth dixi125@wp.pl Linux Networking 1 01-02-2006 01:22 PM
sharing bandwidth download+upload+NAT - [debian] Gaetan Linux Networking 3 10-05-2003 10:53 PM
vsftpd - chown on upload (Q: migrating "upload" directive from wu_ftpd ftpaccess) Gerald Klaas Linux Networking 0 09-08-2003 06:51 PM



1 2 3 4 5 6 7 8 9 10 11