Suppose a router has three input flows and one output. It receives the packets listed in Table 6.1 all at about the same time, in the order listed, during a period in which the output port is busy but all queues are otherwise empty. Give the order in which the packets are transmitted, assuming (a) Fair queuing. (b) Weighted fair queuing, with flow 2 having weight 4, and the other two flows having weight 1. Table 6.1 Packets for Exercise 10 Packet 1 2 3 4 5 6 7 8 Size 100 100 100 100 190 200 110 50 Flow 1 1 1 2 2 3

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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10. Suppose a router has three input flows and one output. It receives
the packets listed in Table 6.1 all at about the same time, in the
order listed, during a period in which the output port is busy but
all queues are otherwise empty. Give the order in which the
packets are transmitted, assuming
(a) Fair queuing.
(b) Weighted fair queuing, with flow 2 having weight 4, and the
other two flows having weight 1.
Table 6.1 Packets for Exercise 10
Packet
1
2
3
4
5
6
7
8
Size
100
100
100
100
190
200
110
50
Flow
1
1
1
1
2
2
3
3
Transcribed Image Text:10. Suppose a router has three input flows and one output. It receives the packets listed in Table 6.1 all at about the same time, in the order listed, during a period in which the output port is busy but all queues are otherwise empty. Give the order in which the packets are transmitted, assuming (a) Fair queuing. (b) Weighted fair queuing, with flow 2 having weight 4, and the other two flows having weight 1. Table 6.1 Packets for Exercise 10 Packet 1 2 3 4 5 6 7 8 Size 100 100 100 100 190 200 110 50 Flow 1 1 1 1 2 2 3 3
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