1. (a) Consider two hosts A and B, connected by a single link of rate R bps. Suppose that the two hosts are separated by m meters, and the propagation speed along the link is s meters/sec. Host A is to send a packet of size L bits to Host B. Show Transcribed Text
1. (a) Consider two hosts A and B, connected by a single link of rate R bps. Suppose that the two hosts are separated by m meters, and the propagation speed along the link is s meters/sec. Host A is to send a packet of size L bits to Host B. Show Transcribed Text
Operations Research : Applications and Algorithms
4th Edition
ISBN:9780534380588
Author:Wayne L. Winston
Publisher:Wayne L. Winston
Chapter20: Queuing Theory
Section20.10: Exponential Queues In Series And Open Queuing Networks
Problem 8P
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![1.
(a)
(b)
(c)
Consider two hosts A and B, connected by a single link of rate R bps.
Suppose that the two hosts are separated by m meters, and the
propagation speed along the link is s meters/sec. Host A is to send a
packet of size L bits to Host B.
Show Transcribed Text
5. Suppose dprop is greater than dtrans. At time t = dtrans, where is the first
bit of the packet?
The bit is just leaving Host A
O The bit is in the link and has not reached Host B
O The bit has reached Host B
Show Transcribed Text
The bit is just leaving Host A
S
6. Suppose dprop is less than dtrans. At time t = dtrans, where is the first bit
of the packet?
The bit has reached Host B
The bit is in the link and has not reached Host B
Show Transcribed Text
Ć
Show Transcribed Text
3
7. Suppose s = 2.5×108, L = 120 bits, and R = 56 kbps. What is the
distance m so that dprop equals dtrans (assuming unit is km, round up to an
integer answer)?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2592e050-b71d-4ec1-ae83-993993cc28b9%2F4cf34181-80c6-4eae-98f1-754a4429d4ed%2Flarqq8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1.
(a)
(b)
(c)
Consider two hosts A and B, connected by a single link of rate R bps.
Suppose that the two hosts are separated by m meters, and the
propagation speed along the link is s meters/sec. Host A is to send a
packet of size L bits to Host B.
Show Transcribed Text
5. Suppose dprop is greater than dtrans. At time t = dtrans, where is the first
bit of the packet?
The bit is just leaving Host A
O The bit is in the link and has not reached Host B
O The bit has reached Host B
Show Transcribed Text
The bit is just leaving Host A
S
6. Suppose dprop is less than dtrans. At time t = dtrans, where is the first bit
of the packet?
The bit has reached Host B
The bit is in the link and has not reached Host B
Show Transcribed Text
Ć
Show Transcribed Text
3
7. Suppose s = 2.5×108, L = 120 bits, and R = 56 kbps. What is the
distance m so that dprop equals dtrans (assuming unit is km, round up to an
integer answer)?
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