On Mon, Jan 13, 2003 at 09:37:49AM +0100, Wojciech Puchar wrote:

> why it's SIMPLEX while it's full duplex?

full duplex == can receive and send at the same time
half duplex == can only receive or sent at one time (for example on
               koax/BNC)
simplex     == the network interface receives the packets it sent itself
               (mostly interesting for broadcasts), i.e. listens to
	       itself - if this flag is set the upper network layers
	       take special care to eliminiate the broadcasts packets
	       from ourself.

Martin