Suppose A and B nodes are on the same 10 Mbps broadcast and the propagation delay is 325 bit times between the two nodes. Suppose for this channel CSMA/CD and Ethernet packets are used. Suppose node A begins sends a frame and node B starts sending a frame until it is over. Can Afinish transmitting B until it is detected? Why not? Why or why not? If so, then A incorrectly insists that his frame was transmitted safely without a crash. Hint: Suppose t = 0 bits at the moment, A begins sends the frame. In the worst case, a minimum frame of 512 + 64 bit times is transmitted. So A would end the frame at t = 512 + 64 bit times. The . response is no, if the signal B crosses t = 512 + 64 bits before bit time. In the worst scenario, when does B hit A?
Suppose A and B nodes are on the same 10 Mbps broadcast and the propagation delay is 325 bit times between the two nodes. Suppose for this channel CSMA/CD and Ethernet packets are used. Suppose node A begins sends a frame and node B starts sending a frame until it is over. Can Afinish
transmitting B until it is detected? Why not? Why or why not? If so, then A incorrectly insists that his frame was transmitted safely without a crash. Hint: Suppose t = 0 bits at the moment, A begins sends the frame. In the worst case, a minimum frame of 512 + 64 bit times is transmitted. So A would end the frame at t = 512 + 64 bit times. The . response is no, if the signal B crosses t = 512 + 64 bits before bit time. In the worst scenario, when does B hit A?
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