The comparison is in term of fiber required, average propagation delay, transmission loss, max bit rate, fault tolerance among four type topologies included bus, star, ring and dual ring.
Under the mechanism of DFPQ and HUF, the averagetransmissionrate doesn't increase any more when the system is fully loaded.
在DFPQ与HUF的机制下，当系统达到满载时，平均传输速率不再随连线数增加而上升。
3
The lightning trip-out rateof Shandong province transmission line meets the demand of ministry regulation and it is lower than the average trip-out rateoftransmission line in China.