Consider a path from host A to host B through a router X as follows:
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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![1. Consider a path from host A to host B through a router X as follows:
A-
-X-B
The capacity of the link AX is denoted Ra, while the capacity of the link XB is denoted Rb
in units of [bits/s]. Assume that Ra < Rb. Suppose host A sends a pair of packets to Host
B and there is no other traffic on the path. Assume each packet is of size L [bits] and both
links have the same propagation delay dprop-
(a) What is the packet inter-arrival time at the destination?
(b) Now assume that Ra > Ri. Is it possible that the second packet queues at input queue of
the second link? Explain. Now suppose that host A sends the second packet T seconds
after sending the first packet. How large must T be to ensure no queueing before the
second link? Explain.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa80eb220-b198-4f3d-81bb-2cbd72fe9990%2Fb7d278e8-cf13-4f54-ac75-047c9ec2e556%2Fvg5aeqk_processed.png&w=3840&q=75)
Transcribed Image Text:1. Consider a path from host A to host B through a router X as follows:
A-
-X-B
The capacity of the link AX is denoted Ra, while the capacity of the link XB is denoted Rb
in units of [bits/s]. Assume that Ra < Rb. Suppose host A sends a pair of packets to Host
B and there is no other traffic on the path. Assume each packet is of size L [bits] and both
links have the same propagation delay dprop-
(a) What is the packet inter-arrival time at the destination?
(b) Now assume that Ra > Ri. Is it possible that the second packet queues at input queue of
the second link? Explain. Now suppose that host A sends the second packet T seconds
after sending the first packet. How large must T be to ensure no queueing before the
second link? Explain.
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