Calculate the minimum length of packet size required to detect collision section in an ethernet section having following specifications: Link Capacity: 150 Mbps Maximum Distance: 200 Meters

1. Propagation delay = 150 meters / (2310^8/3) =0.25 us
2. Round Trip time=2* Propagation Delay =0.5 us
3. minimum frame size=bandwidthdelay(round trip time)
4. minimum frame size=150Mbps0.5 us=75 bits
5. I have done this way, plz check