问题如下：
A bus topology with two station a distance 1km apart, a data rate of 10Mbps, and a packet size 256 bits with 80bits of overhead. Each packet is acknowledged with an 88-bite packet before the next is sent. The propagation speed on the bus is 200m/s. Consider the transfer of a file containing one million 8-bit characters from one station to another. What is the total elapsed time and effective throughput for the above case? A bus topology with two station a dis
