cp5601t5 - length results in discarding of arriving packets...

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CP5610 tutorial 5 (from textbook chapter 7) 48. Consider the head-of-line priority system in Figure 7.42. Explain the impact on the delay and loss performance of the low-priority traffic under the following conditions: (a) The high-priority traffic consists of uniformly spaced, fixed-length packets. (b) The high-priority traffic consists of uniformly spaced, variable-length packets. (c) The high-priority traffic consists of highly bursty, variable-length packets. 49. Consider the head-of-line priority system in Figure 7.42. Suppose that each priority class is divided into several subclasses with different “drop” priorities. For each priority subclass there is a threshold that if exceeded by the queue
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Unformatted text preview: length results in discarding of arriving packets from the corresponding subclass. Explain the range of delay and loss behaviors that are experienced by the different subclasses. 50. Incorporate some form of weighted fair queueing in the head-of-line priority system in Figure 7.42 so that the low-priority traffic is guaranteed to receive r bps out of the total bit rate R of the transmission link. Explain why this may be a desirable feature. How does this impact the performance of the high-priority traffic?...
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