Send 3 data packets from Host A to Host B. Each of the first two packets contains 1,500 bytes, while the third packet contains 900 bytes, all including packet headers. As shown in Figure 1, there are three links and two switches supporting the store-and-forward packet switching between A and B. The links are uncongested with no other traffic. The three links, from Link 1 to Link 3, have capacities of 4.8 Mbps, 1.2 Mbps, and 2.4 Mbps, respectively. Ignore propagation delay on all the links and processing delay on all the nodes. Calculate the minimum overall delay for sending all the three packets from Host A to Host B Link 1 Link 2 Link 3 S1 S2 Figure l (12 Marks)