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Posted by DLR on May 26, 2006, 12:46 pm
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none wrote:
>> Dude, DSL bandwidth is shared by all the users too. It just happens a
>> little further into the network.
>
> Dude, will you be able to point to some where I can get more info about
> the DSL bandwidth sharing?
>
Don't know where to point you but basically all broadband networks look
like inverted trees. End users are the leaves at the bottom. Things are
aggregated as you move up the tree and "your" branch joins others. At
every branch junction, there's almost always a sharing of bandwidth.
Costs would be 10 to 1000 times what they are now if you got your full
bandwidth all the way to a peering point.
And yes, network design means more than DSL vs cable. I've had both
multiple times into my house and with business clients over the last,
what, 8 years. I was one of the first in Raleigh with BellSouth DSL way
back when. In the very early days it was great, then as their network
got overloaded at the various places, performance would drop off about 1
hour after school got out, about 7 or 8 pm and about 8:30 am. Took them
about a year to get things balanced for that go go away. I switched to
cable after about 2 years and noticed similar slow downs. Took them
about a year to get it worked out.
Currently I have a 3rd party DSL service into my home. Portbridge.
Performance is almost always great. Bellsouth carries the traffic up to
about the 3rd router then it gets put onto Portbridge's network. But if
you're a Bellsouth residential customer you get run through a slew of
routers (which implies lots of bandwidth sharing) and typically don't
get nearly as good of performance as I get. Bellsouth business seems
better but I don't have direct experience over the last year. Cable here
in Raleigh with TWC seems great all the time just now and blows
Bellsouth residential away in terms of performance.
So basically, it's up to how well the network is designed and the goals
of the design.
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Posted by none on May 26, 2006, 12:55 pm
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DLR wrote:
> Don't know where to point you but basically all broadband networks look
> like inverted trees. End users are the leaves at the bottom. Things are
> aggregated as you move up the tree and "your" branch joins others. At
> every branch junction, there's almost always a sharing of bandwidth.
> Costs would be 10 to 1000 times what they are now if you got your full
> bandwidth all the way to a peering point.
>
Thanks for the insight....that was helpful.
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Posted by $Bill on May 24, 2006, 10:27 pm
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> I have Motorola Surfboard 5120, my provider is Comcast. My line speed
> should be 6144/384. I noticed that my download speed is not even close
> to what is promised by Comcast (checked w/ speed tests and w/ ftp
> downloads), I don't get more then 2600 kbps.
What test did you use (URL) and what were your exact numbers ?
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Posted by Martin Kusch on May 25, 2006, 10:02 pm
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> Martin Kusch wrote:
>
>> I have Motorola Surfboard 5120, my provider is Comcast. My line speed
>> should be 6144/384. I noticed that my download speed is not even close
>> to what is promised by Comcast (checked w/ speed tests and w/ ftp
>> downloads), I don't get more then 2600 kbps.
>
> What test did you use (URL) and what were your exact numbers ?
E.g. http://www.speakeasy.net/speedtest/
But in the meanwhile, I have found out that the problem is on my site.
Somehow my main computer is not configured correctly, respectively my
configuration Modem --> ATA --> Computer does not work together. When I
just hook up my notebook directly to the Modem I get the full speed,
even faster (over 6000 kbps)! So, I guess I have to find the flaw on my
side now....
Martin
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Posted by Eric on May 26, 2006, 1:16 am
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others...
Tom's Hardware Guide (www.tomshardware.com) had a comparison of several
different router/gateways a while back. Look under the networking
section. I was a bit suprised by the results.
Eric
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