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Consider the network shown in Scenario 2 in Section 3.6.1 . Suppose both sending hosts A and B have some fixed timeout values. a. Argue that increasing the size of the finite buffer of the router might possibly decrease the throughput (? ). b. Now suppose both hosts dynamically adjust their timeout values (like what TCP does) based on the buffering delay at the router. Would increasing the buffer size help to increase the throughput? Why?

Consider the network shown in Scenario 2 in Section 3.6.1 . Suppose both sending hosts A and B have some fixed timeout values. a. Argue that increasing the size of the finite buffer of the router might possibly decrease the throughput (? ). b. Now suppose both hosts dynamically adjust their timeout values (like what TCP does) based on the buffering delay at the router. Would increasing the buffer size help to increase the throughput? Why?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Consider the network shown in Scenario 2 in Section 3.6.1 . Suppose both sending hosts A and B have some fixed timeout values.
a. Argue that increasing the size of the finite buffer of the router might possibly decrease the throughput (? ).
b. Now suppose both hosts dynamically adjust their timeout values (like what TCP does) based on the buffering delay at the router. Would increasing the buffer size help to increase the throughput? Why?

Ain: original data Nin: original data, plus retransmitted data Mout Host A Host B Host C Host D Finite shared output link buffers Figure 3.45 • Scenario 2: Two hosts (with retransmissions) and a router with finite buffers
Transcribed Image Text:Ain: original data Nin: original data, plus retransmitted data Mout Host A Host B Host C Host D Finite shared output link buffers Figure 3.45 • Scenario 2: Two hosts (with retransmissions) and a router with finite buffers
RI2 RI2 RI2- RI3 RI4 RI2 RI2 RI2 N'in N'in N'in а. b. c. Figure 3.46 • Scenario 2 performance with finite buffers
Transcribed Image Text:RI2 RI2 RI2- RI3 RI4 RI2 RI2 RI2 N'in N'in N'in а. b. c. Figure 3.46 • Scenario 2 performance with finite buffers
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