Consider two nodes A and B on the same ethernet segment, and suppose the propagation delay between the two nodes is 225 bit times. Suppose at time both nodes A and B begin to transmit a frame. Assume both nodes transmit a 50-bit jam signal after detecting a collision. For 107 bits per set ethernet, the time at which both nodes A and B sense an idle channel is ________ μsec.
(ANS IS 50usec)