RE: bandwidth from Telco

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Full and half duplex have absolutely nothing to do with bandwidth,
throughput or capacity.  Half duplex simply means that you can only transmit
data in one direction at a time.  Full duplex means that you can transmit
data in both directions simultaneously. This is a holdover from the early
radio and serial and POTS days when the same wire or frequency was used to
transmit data in either direction so it could not carry multiple data
streams.

The question of (up or down) vs (up+down) vs (up and down) is a contractual
issue.  Read the service agreement for the answer. 


> -----Original Message-----
> From: [email protected] [mailto:[email protected]]
> On Behalf Of Patrick W. Gilmore
> Sent: Friday, February 10, 2012 1:20 AM
> To: [email protected]
> Subject: Re: bandwidth from Telco
> 
> On Feb 10, 2012, at 2:00 , Frank Bulk wrote:
> 
> > It depends how they sell it -- they might sell it as the total of the
> > upstream and downstream.  But technically it should be able to do 100 up
> and
> > 100 down, so that he can charge you 200. =)
> 
> That is only how they bill it.  The definition of full-duplex is that you
> can send an receive simultaneously.  If they say 100 Mbps means the total
> of send + receive, that is half-duplex.  Since they are clearly confused,
> tell them to buy a dictionary (since using BING is clearly beyond them).
> 
> It should difficult for anyone to argue "X != X".  That said, if anyone
> could argue such a thing, it would be a telephone company technician....
> 
> --
> TTFN,
> patrick
> 
> 
> > -----Original Message-----
> > From: [email protected] [mailto:[email protected]]
> On
> > Behalf Of Jim Pazarena
> > Sent: Friday, February 10, 2012 12:43 AM
> > To: [email protected]
> > Subject: bandwidth from Telco
> >
> > I am confused and possibly being fed a crock by my Telco.
> > We have a 100Mbps full duplex circuit.
> >
> > However the Telco tells me that the 100Mbps capability is
> > aggregate total in both directions. In that if our downstream is
> > sucking 70Mbps, there is only 30Mbps remaining for upstream.
> >
> > Shouldn't I be able to pull and push 100Mbps in each direction
> > AT THE SAME TIME? Or is this typical of a Telco delivery and
> > pipe sizing?
> 
> 
> --
> Eat sushi frequently. - Avi
> [email protected] is the human contact address.
> [email protected] is the list posting address.
> See below URL for subscribe/unsubscribe and list options:
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-- 
Eat sushi frequently. - Avi
[email protected] is the human contact address.
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