bobkoure;551166The issue is timing and the "length" of the packet (literal length, as in the length of wire the packet occupies, given the speed of electrons in a conductor). Yes, having only two parties will make collisions less likely. And with only two parties you could likely go half-duplex successfully (yes it cuts your bandwidth in half, but it should also remove most or all of the collision issue.[/QUOTE Wrote: > > I agree so far as to the collison issue being the reason for the length > limit, this stands true for 10Base-2, 10Base-5, 10Base-T and 100Base-TX. > But in an environment with TP wiring and no hubs (switches are OK) there > is no collision domain and it is this that will allow full duplex. > In the context of a single TP cable, half or full duplex is irrelevant > when it comes to collisions since separate pairs are used as long as we > are talking about 10 and 100 Mbit/s, Gbit uses other techniques but > that's probably not interesting in this case. > Either way, I would hesitate using TP cabling in this case even if I > have no doubt it would work. Lightning could induce some nasty voltages > and most network equipment has poor (nonexistent more likely) > protection.
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