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CNT 4004 Computer Networks

Published : 03-Sep,2021  |  Views : 10

Questions:

1. What is an expected percentage utilization for a network?

2. The protocol analyzer shows that the average frame size of data packets being delivered to and from the campus network Internet connection is 1203. Is this a reasonable average? Justify your answer.

Answers:

1.A minimum 30 percent of the network should be utilized by a network and the rest of the bandwidth should be available to the users. For wide area network the utilization percentage of the network should be 70 percent in the peak time. For the local area network the network utilization percentage should not be exceeded by 37 percentage because it may increase the collision rate and cause in degradation of the performance of the network solution (Cohen, R., Lewin-Eytan, Naor & Raz, 2014). For a network consisting of 50 base station the network utilization beyond 37 percentage can cause delay in transmission of the data packets.  

2.The average frame size limit of a data packet that should be delivered to and from the campus internet connection should be 1500 bytes and here it is 1203 and thus it can be considered as high.

This is not a reasonable average because about 80.2% is the average frame size and it is higher and thus causing a strain in the network and bandwidth utilization (An et al., 2014). The minimum frame size of a data packet is 64 bytes and from the analysis it has been found that the frame size is 1203 bytes long and it can cause collision in the network.

References

An, F. T., Hsueh, Y. L., Kim, K. S., White, I. M., & Kazovsky, L. G. (2014). A new dynamic bandwidth allocation protocol with quality of service in ethernet-based passive optical networks. arXiv preprint arXiv:1404.2413.

Cohen, R., Lewin-Eytan, L., Naor, J. S., & Raz, D. (2014, April). On the effect of forwarding table size on SDN network utilization. In INFOCOM, 2014 Proceedings IEEE (pp. 1734-1742). IEEE.

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