Consider a packet flowing through the Internet over 2 hops (source-> router 1 -> destination). Assume that it takes the router 1 msec to process a packet and determine the outgoing link. The simplified network is shown below: 1,000 Km 1 Mb/s 5,000 Km 20 Mb/s Given a propagation speed of 2.5 x 108 m/s (slightly under the speed of light) and a packet data size of 1000 bytes, what is the end-to-end delay for a packet assuming no other traffic at the router? What effect would other traffic at the router have? Question 2 - Packet switching and Circuit switching - from K&R Suppose that all of the network sources send data at a constant bit rate. Would packet-switching or circuit- switching be more desireable in this case? Why?