Chapter 9 Communications Circuits Packetized messages can be sent through the network in one of three ways SVC P182 If two packet nodes communicate frequently, a PvC, similar to a leased line, may be established Datagram service www.gxmu.edu.cnPacketized messages can be sent through the network in one of three ways. ➢ SVC P182 ➢ If two packet nodes communicate frequently, a PVC, similar to a leased line, may be established. ➢ Datagram service www.gxmu.edu.cn Chapter 9 Communications Circuits