Re: DSL vs Cable modem ---what is difference when connecting to internet?
From: Robert Heller (heller_at_deepsoft.com)
Date: 01/09/04
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Date: Fri, 09 Jan 2004 11:55:07 +0000
notbob <notbob@nothome.com>,
In a message on Fri, 09 Jan 2004 02:38:57 GMT, wrote :
n> On 2004-01-08, Robb <RobeDap6@u6u9ytezhu.com> wrote:
n>
n> > (1)use pppoe for DSL, what protocol for Cable modem?
n>
n> DOCSIS ethernet
n>
n> > (2)what kinds of setting files are the same , and what kinds of setting files are the different?
n>
n> I can't think of a single linux that doesn't have some simple script to help
n> you set up DHCP. It's a snap.
n>
n> > (3)when use DSL, there is no need to know Mac address of NIC, when use cable modem,
n> > is there a need to know Mac address of network card?
n>
n> It's a nonissue.
n>
n> > (4)....?
n>
n> DSL speed is totally dependent on your distance from the central office
n> (CO), the telephone company's local switching station. The farther from it,
n> the slower your speed, not matter how much you pay or what they tell you.
n> With cable, it doesn't matter where you are. If you can get cable, you'll
n> get the maximum speed available (depending on load).
Cable modem speed has exactly the same speed/throughput issues as thick
or thin EtherNet. You are 'sharing' a piece of copper with other
network nodes (other cable modem customers on your 'block'). If no one
else is using the bandwidth you get all it to yourself. If everybody
else is also using the bandwidth you get 1/Nth of the bandwidth (N ==
total number of concurrent users).
n>
n> > (5)....?
n>
n> At one time, DSL was a better deal. But that's all changed. Right now,
n> Comcast cable is a better bargain. The market is constantly evolving and
n> Comcast has recently doubled their initial speed offerings on broadband
n> cable. In most places it's now 2.5M/256K, double the speed from when Comcast
n> took over from AT&T. This is typically $45-50 mo. DSL typically costs $80
n> mo, or higher, for these speeds. One catch! If you don't have Comcast
n> cable tv, they are going to punish you with an extra $10-15 fee on broadband
n> cable only. It's a dirty trick, but it's their ball.
n>
n> I was going to switch to DSL (I'm real close to the CO), but have changed my
n> mind. This because no DSL provider can now beat cable's speed/price (I
n> already have ulta basic cable tv ($15), so don't get the penalty fee).
n>
n> Everything you want to know ...and more!... is available at:
n>
n> http://www.dslreports.com/
n>
n> nb
n>
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Robert Heller ||InterNet: heller@cs.umass.edu
http://vis-www.cs.umass.edu/~heller || heller@deepsoft.com
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