We have assumed 0 queuing delay for packet switched network until now. However, that is not the case in reality. Suppose there is a 1ms queuing delay at every router when using packet switched network. Meaning, once a packet has fully arrived at a router, it must wait for 1ms before it can be transmitted on the outgoing link. For circuit switched network, there is no such queuing delay. Once the circuit has been established (5ms establishment time), the routers are able to pass through the arriving bits immediately. Now which network is faster?

You 5Mbps Your friend 1Gbps