At 09:58 AM 4/13/00 -0400, Rakers, Jason wrote:
>So, are most WAN topologies full-duplex? I would think point-to-point
>topologies are, but multipoint topologies may not.
At what level of operation? Even multipoint topologies can have "four-wire
connections" like the multi-drop leased-line circuits that were popular in
the 1960s.
The most common circuits are full-duplex by any definition. This includes
T1, E1, DS3, frame relay. Even ISDN is full-duplex, thanks to
frequency-division multiplexing of the copper pair.
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