[ale] OT: ADSL modem bottleneck

Bjorn Dittmer-Roche bjorn at sccs.swarthmore.edu
Mon Mar 1 09:39:51 EST 2004


On Sun, 29 Feb 2004, Mike Millson wrote:

> On Sun, 2004-02-29 at 09:41, Bjorn Dittmer-Roche wrote:
> > But DSL is only half duplex, so would a half duplex 10BaseT actually slow
> > you down?
>
> Are you saying that DSL and ADSL in and of itself is only capable of
> half duplex? It's not just a pipe between the router and the central
> office? You can only be uploading or downloading at a given time? Or are
> you saying that the router itself, like a hub, is half duplex?

That's what I read, but I'm having trouble varifying that now. Some sites
seem to think that duplex means symetric. Anyway, I will just say that I
*think* DSL is half duplex and leave it at that. Someone else know better?

> If I have a 256 kbps fractional T-1, is that half or full duplex?

T1 is full duplex.

> Is cable half or full duplex?

My guess: half.

	bjorn



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