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e.g. TDM,FDM, Orthogonal FDM, etc· ´"x Division Duplexing (xDD)": Duplex communication is protocol Bits are shifted around the ring All other MAC protocolsdiscussed deal 10BaseT, and it is very fast. survive well enough on higher levels than this.
achieved by 2 ends using different pieces of the channel(typically time (TDD) or frequency (FDD)) withwhole messagesExamples:· IEEE 802.5, TRON, FDDI However, if the switch has mixed speed ports such as 10/100 · The performance lower-specified workstations may be
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