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Dave,
Highly simplified the difference between the two different transport
mechanisms (DSL & Cable) is as follows:
Cable:
Distribution - Big internet pipe comes into exchange (or cable head
end) the signal joins existing cable TV distribution network ;
Pro - Bandwidth shared between customers, meaning in a low cable
internet take-up area or during non-peek times, very high speeds can
be achieved ;
Con1 - Speed can vary during peek times, especially in areas of high
cable internet take-up, most cable co's don't offer a contention ratio
(customers vs big pipe size ) ;
Con2 - Considered a non essential service (unlike phone), downtime &
reliability not covered under Government act etc.
Con3 - Minor: usually needs to be installed by the cable company
(appointment delays etc)
DSL:
Ditribution - Big internet pipe comes into exchange, goes into a unit
called a dslam (think of it as a managed ethernet switch) signal from
each port joins customers wire pair ;
pro1 - usually a contention ratio is offered, meaning a vague ratio of
bandwidth available vs price your paying exists ;
pro2 - Usually the basic phone service is Government protected in most
countries, so if a service failure is due to a physical problem with
the wiring your guaranteed a quick repair ;
pro3 - Minor: usually self install (faster, no waiting on appointments
etc).
Con - usually a fixed bandwidth, no chance of extra speed outside peek
hours etc ;
Summary... Speed, reliability, low cost ... Chose any two:
Speed + low cost = Cable
Reliability + low cost = DSL
Speed + Reliability = Dedicated circuit
Justin
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On 12 Feb 2008, at 17:36, Trader wrote:
There was a discussion a while back regarding using cable vs DSL for
trading using IB/2000i. I belive DSL won out but can't remember the
details.
Searching the purebytes archives starts at 2004 and older.
Can anyone point out the concerns?
Many thanks,
Dave...
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