The following parameters are used in a switching network shown in Figure 2 (Page 3) L- Message length in bytes B1- Data rate, in bytes per second, on link 1 B2-Data rate, in bytes per second, on link 2 P- Fixed packet size (including header), in bytes. We assume that every packet, possibly with the exception of the last packet, is filled up to full size by the message bytes H-Overhead (header) bytes per packet S- Call setup time for circuit switching in seconds Suppose the buffer in switching node S is empty before user A starts transmission and no acknowledgements are used processing and propagation delays, compute the end-to-end delays for circuit switching and datagram packet switching networks if L 4020, B 9600, B, -4800, P -1920, H -20 and S 2 Ignoring the (12 Marks)