Question: Suppose that the WFQ scheduling policy is applied to a buffer that supports three classes, and suppose the weights are 0.5, 0.25, and 0.25 for

Suppose that the WFQ scheduling policy is applied to a buffer that supports three classes, and suppose the weights are 0.5, 0.25, and 0.25 for the three classes.
a. Suppose that each class has a large number of packets in the buffer. In what sequence might the three classes be served in order to achieve the WFQ weights? (For round robin scheduling, a natural sequence is 123123123 ... ).
b. Suppose that classes 1 and 2 have a large number of packets in the buffer, and there are no class 3 packets in the buffer. In what sequence might the three classes be served in to achieve the \\IrQ weights?

Step by Step Solution

★★★★★

3.51 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a One possible sequence is 1 ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

899-CS-CN (688).docx

120 KBs Word File

Students Have Also Explored These Related Computer Network Questions!

This problem demonstrates that although Equation (10.2) for rate monotonic scheduling is a sufficient condition for successful scheduling, it is not a necessary condition (i.e., sometimes successful...

Let's consider what dynamic scheduling might achieve here. Assume a microarchitecture as shown in Figure 2.42. Assume that the ALUs can do all arithmetic ops (MULTD, DIVD, ADDD, ADDI, SUB) and...

An input r(t) = t.t ¥ 0, is applied to a black box with a transfer function G(s). The resulting output response, when the initial conditions are zero, is Determine G(s) for this system. 1. 4 y(r)...

[ 1 0 pt ] Suppose that the WFQ scheduling policy is applied to a buffer that supports three classes, and suppose the weights are 0 . 5 , 0 . 3 , and 0 . 2 for the three classes. a . Suppose that...

Do the "experts on chegg actually read the questions--asking the same question for the fifth time: Suppose that the WFQ scheduling policy is applied to a buffer that supports three classes (of...

Suppose that the WFQ scheduling policy is applied to a buffer that supports three classes (of priority packets), and suppose the weights are 0.25, 0.5, and 0.75 for the three classes. Further suppose...

The natural sequence for serving 3 classes ( 1 , 2 , and 3 ) at a router buffer is: 1 2 3 1 2 3 1 2 3 . . . if round robin scheduling is used. Now, let s assume Weighted Fair Queuing ( WFQ )...

1 1. It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that...

(iii) Now express your decision rule instead using only the quantities p(Ck), p(Cj ), p(x|Ck), p(x|Cj ), and relate it to the diagram above. [2 marks] (iv) If the classifier decision rule assigns...

Mr. Smith is planning to invest $10,000 in a savings account that earns a fixed interest rate of 5% per annum. He wants to know how long it will take to reach his investment goal of $20,000. Assume...

A researcher is interested in whether regular use of grammar checking in word processing programs has an effect on grammatical errors in hand-written work. On a national test of students who...

8. Which figure would you expect to be higher for most companies most of the time: net income or CFFO? Why?

During the Global Financial Crisis of 20072008, the US government included a Buy American condition as part of its stimulus package to US firms, requiring firms to purchase production inputs from...

Why certain functional dependencies are called trivial functional dependencies?

List all functional dependencies satisfied by the relation of Figure. ABC a1 a1 bi C2 a2 az | bi| C3

Use the definition of functional dependency to argue that each of Armstrongs axioms (reflexivity, augmentation, and transitivity) is sound.

a. List and discuss two (2) differences between the Know Your Client Form and the Investment Policy Statement. (4 Marks) b. Managers can select stocks either from the sector level or at the...

Please help with this whole probelm. The drop down box gives the choices of expand or abandon. Introduction to real options Consider the following statement about real options: True or False: The...

Suppose you bought a bond with a coupon rate of 7.5 percent one year ago for $898. The bond sells for $928 today. 1) Assuming a $1,000 face value, what was your total dollar return on this investment...