Circuit vs packet switching Advantages of packet switching Efficient for bursty data Easy to provide bandwidth on demand with variable rates Disadvantages of packet switching Variable delays Difficult to provide Qos assurances(Best-effort service) Packets can arrive out-of-order Switching Technique Network service Circuit switching g Synchronous(e.g, voice) Packet switching Asynchronous(e.g, Data Ⅴ irtual circuits Connection oriented Datagram ConnectionlessEytan Modiano Slide 16 Circuit vs packet switching • Advantages of packet switching – Efficient for bursty data – Easy to provide bandwidth on demand with variable rates • Disadvantages of packet switching – Variable delays – Difficult to provide QoS assurances (Best-effort service) – Packets can arrive out-of-order Switching Technique Network service Circuit switching => Synchronous (e.g., voice) Packet switching => Asynchronous (e.g., Data) Virtual circuits => Connection oriented Datagram => Connectionless