Assume that the leftmost router in the figure is replaced with a layer 2 switch and that hosts A, B, C, D are connected to this switch using a star topology.

a)Draw a revised sketch of this network configuration showing the MAC and IP addresses that would be consistent with this new configuration.

b) Give the source and destination MAC addresses in the frame encapsulating this datagram as the frame is transmitted:

i) From A to the left router

ii) From the left router to the right router

ii)

From the right router to F

Also give the source and destination IP addresses in the IP datagram encapsulated within the frame at each of these points in time.

122.222.222.001 44:44:44:44:44:44 33.333 333.001 77:77:77:77:77:77 1.111.001 00:00:00:00:00:00 111.002 122.222 222.003 55:55:55:55:55 22:22:22:22:22:22 Router 1 Router 2 LAN LAN LAN 22.222 222.002 33:33:33:33:33:33 33.333 333.002 88:88:88:88:88:88 1.003 122 222 222.004 66:66:66 66:66:66 33.333.333.003 99:99:99:99:99:99