Minimum frame size in CSMA/CD

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May I ask, why the minimum frame size = bandwith * round trip time? Why could it not be smaller than the bandwith * rtt?

Thenk you very much

1 Answers

If the frame size is any smaller than bandwidth*RTT, the frame may have already been finished transmitting by the time the collision warning reaches the transmitting node, so the frame cannot be retransmitted. Hope that makes sense! :)

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