资料来源 : pyDict

回路开关,(是网络连结的典型范例,当专用数据通道在两台主机间建立起来时, 所有的数据包便在此流通,电话系统就是一例.)

资料来源 : Free On-Line Dictionary of Computing

circuit switching
     
        A communications paradigm in which a dedicated communication
        path is established between the sender and receiver along
        which all {packet}s travel.  The telephone system is an
        example of a circuit switched network.  Also called
        {connection-oriented}.  Contrast {connectionless}, {packet
        switching}.