Consider a scenario in which H

Consider a scenario in which Host A and Host B want to send messages to Host C. Hosts A and C are connected by a channel that can lose and corrupt(but not reorder)messages. Hosts B and c are connected by another channel(independent of the channel connecting A and C)with the same properties. The transport layer at Host C should alternate in delivering messages from A and b to the layer above(that is, it should first deliver the data from a packet from A, then the data from a packet from B, and so on). Design a stop-and-wait-like error-control protocol for reliably transferring packets from A and B to C, with alternating delivery at C as described above. Give FSM descriptions of A and C (Hint: The FSM for B should be essentially the same as for A.) Also, give a description of the packet format(s) used.