EBK COMPUTER NETWORKING
7th Edition
ISBN: 8220102955479
Author: Ross
Publisher: PEARSON
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Expert Solution & Answer
Chapter 3, Problem R1RQ
a)
Explanation of Solution
Step-by-step process of designing the simplest possible transport-layer protocol:
The STP (Simple Transport Protocol) takes for the process. The protocol takes the data not exceeding 1196 bytes at the sender side.
- The protocol accepts the four byte destination port number, host address, and a destination port address as a chunk which is not exceeding 1196 bytes.
- STP adds a four-byte header to each chunk and puts the port number of the destination in this header.
- The protocol then gives the destination host address and the resulting segment to the network layer.
- After receiving the address and segment, the network layer send the segment to STP at the destination host.
- STP then examines the segment and observes its port number and then the protocol extracts the data from the segment.
- The extracted data passes to the process of identified port number.
b)
Explanation of Solution
Modification:
Consider the segment has two header fields: one is “source port field” and another one is “destination port field”.
- At the source side, STP accepts the chunk of data which is not exceeding 1192 bytes. The data has destination host address, source port number, and a destination port number.
- Then, STP creates a segment which has application data, source port number, and destination port number.
- After creating segment, STP gives the two values to the network layer. They are: segment and destination port number.
- Then the STP receives host address and provides the process the source port number and the application data.
c)
Explanation of Solution
“No”, the transport layer does not do anything in the core of the
Explanation:
The reason is that the transport layer “lives” in the end systems.
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Students have asked these similar questions
Suppose the network layer provides the following service. The network layer in the
source host accepts a segment of maximum size 1,200 bytes and a destination host
address from the transport layer. The network layer then guarantees to deliver the
segment to the transport layer at the destination host. Suppose many network
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a) Design the simplest possible transport-layer protocol that will get application
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Suppose the network layer provides the following service. The network layer in the
source host accepts a segment of maximum size 1,200 bytes and a destination host
address from the transport layer. The network layer then guarantees to deliver the
segment to the transport layer at the destination host. Suppose many network
application processes can be running at the destination host.
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data to the desired process at the destination host. Assume the operating system
in the destination host has assigned a 4-byte port number to each running
application process.
b) Modify this protocol so that it provides a “return address” to the destination
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Chapter 3 Solutions
EBK COMPUTER NETWORKING
Ch. 3 - Prob. R1RQCh. 3 - Prob. R2RQCh. 3 - Consider a TCP connection between Host A and Host...Ch. 3 - Prob. R4RQCh. 3 - Prob. R5RQCh. 3 - Prob. R6RQCh. 3 - Suppose a process in Host C has a UDP socket with...Ch. 3 - Prob. R8RQCh. 3 - Prob. R9RQCh. 3 - In our rdt protocols, why did we need to introduce...
Ch. 3 - Prob. R11RQCh. 3 - Prob. R12RQCh. 3 - Prob. R13RQCh. 3 - Prob. R14RQCh. 3 - Suppose Host A sends two TCP segments back to back...Ch. 3 - Prob. R16RQCh. 3 - Prob. R17RQCh. 3 - Prob. R18RQCh. 3 - Prob. R19RQCh. 3 - Prob. P1PCh. 3 - Prob. P2PCh. 3 - UDP and TCP use 1s complement for their checksums....Ch. 3 - Prob. P4PCh. 3 - Prob. P5PCh. 3 - Prob. P6PCh. 3 - Prob. P7PCh. 3 - Prob. P8PCh. 3 - Prob. P9PCh. 3 - Prob. P10PCh. 3 - Prob. P11PCh. 3 - Prob. P12PCh. 3 - Prob. P13PCh. 3 - Prob. P14PCh. 3 - Prob. P15PCh. 3 - Prob. P16PCh. 3 - Prob. P17PCh. 3 - Prob. P21PCh. 3 - Prob. P22PCh. 3 - Prob. P25PCh. 3 - Prob. P26PCh. 3 - Prob. P27PCh. 3 - Host A and B are directly connected with a 100...Ch. 3 - Prob. P29PCh. 3 - Prob. P30PCh. 3 - Prob. P31PCh. 3 - Prob. P33PCh. 3 - Prob. P34PCh. 3 - Prob. P35PCh. 3 - Prob. P37PCh. 3 - Prob. P38PCh. 3 - Prob. P39PCh. 3 - Prob. P41PCh. 3 - Prob. P42PCh. 3 - Prob. P43PCh. 3 - Prob. P44PCh. 3 - Prob. P45PCh. 3 - Prob. P46PCh. 3 - Prob. P47PCh. 3 - Prob. P48PCh. 3 - Prob. P49PCh. 3 - Prob. P51PCh. 3 - Prob. P53PCh. 3 - Prob. P55P
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