Chapter 9 Communications Circuits 9.6 CIRCUIT SWITCHIING Circuit swithing means that there is a dedicated communication line between two nodes but only for the duration of a connection。 www.gxmu.edu.cn9.6 CIRCUIT SWITCHING Circuit swithing means that there is a dedicated communication line between two nodes, but only for the duration of a connection. www.gxmu.edu.cn Chapter 9 Communications Circuits