Suppose that between a sending host and delivery host at hand are three packet routers.
The nouns rates between the sending host and the router, between routers and
between the third router and the acceptance host are TR1, TR2, TR3 and TR4,
respectively. The links between the sending host and router R1; and router R3 and the
unloading host are highly slow. Other links are exceedingly speedily. Assuming that the routers use
store-and-forward packet switching, the links are congested (there are queue delays)
what is the total end on hindrance to convey a packet of length L?
Answers:
Total time for the first one will be the added time for respectively of the hops surrounded by between. After the first packet, you will start to see the packet posterior up on the faster router connections. Assuming that the time for R1 and R3 are alike, the time will be the extension of those two, since the middle two will not enjoy congestion from that point. If you start have different speeds for the come to an end routers, after the total time get closer to the slowest router nouns speed.