CP multiplexing and demultiplexing. Consider the figure below, with 6 sockets shown across the etwork, and the corresponding Python code at each host. There are four TCP segments in flight. mySocket = socket (AF_INET, SOCK_STREAM) mySocket.bind (myaddr, 3200) #sockets to clients created via #later calls to mySocket.accept() mySocket = socket (AF_INET, SOCK_STREAM) mySocket.bind (myaddr, 6515) P1 transport network link physical B source port: ? dest port: ? Segment B destination port # Segment A destination port # Segment C destination port # Segment C source port # P4 Segment B source port # Segment D destination port # Segment D source port # Segment A source port # A source port: ? dest port: ? Ka P5 transport etwork link physical P6 mySocket1 = socket (AF_INET, SOCK_STREAM) mySocket1.bind (myaddr, 6287 ); mySocket2 = socket (AF_INET, SOCK_STREAM) mySocket2.bind (myaddr, 5313 ); D source port: ? dest port: ? source port: ? dest port: ? P2 Which of the following source or destination port number fields in these four segments has the value of 200? P3 transport network link physical
CP multiplexing and demultiplexing. Consider the figure below, with 6 sockets shown across the etwork, and the corresponding Python code at each host. There are four TCP segments in flight. mySocket = socket (AF_INET, SOCK_STREAM) mySocket.bind (myaddr, 3200) #sockets to clients created via #later calls to mySocket.accept() mySocket = socket (AF_INET, SOCK_STREAM) mySocket.bind (myaddr, 6515) P1 transport network link physical B source port: ? dest port: ? Segment B destination port # Segment A destination port # Segment C destination port # Segment C source port # P4 Segment B source port # Segment D destination port # Segment D source port # Segment A source port # A source port: ? dest port: ? Ka P5 transport etwork link physical P6 mySocket1 = socket (AF_INET, SOCK_STREAM) mySocket1.bind (myaddr, 6287 ); mySocket2 = socket (AF_INET, SOCK_STREAM) mySocket2.bind (myaddr, 5313 ); D source port: ? dest port: ? source port: ? dest port: ? P2 Which of the following source or destination port number fields in these four segments has the value of 200? P3 transport network link physical
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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Transcribed Image Text:TCP multiplexing and demultiplexing. Consider the figure below, with 6 sockets shown across the
network, and the corresponding Python code at each host. There are four TCP segments in flight.
mySocket = socket (AF_INET, SOCK_STREAM) mySocket1 =
mySocket.bind (myaddr, 3200)
#sockets to clients created via
# later calls to mySocket.accept()
mySocket =
socket (AF_INET, SOCK_STREAM)
mySocket.bind (myaddr, 6515)
P1
transport
network
link
physical
B
source port: ?
dest port: ?
O Segment B destination port #
O Segment A destination port #
O Segment C destination port #
O Segment C source port #
O Segment B source port #
O Segment D destination port #
O Segment D source port #
O Segment A source port #
P4
A
source port: ?
dest port: ?
K
P5
transport
network
link
physical
P6
socket (AF_INET, SOCK_STREAM)
mySocket1.bind (myaddr, 6287 );
mySocket2 =
socket (AF_INET, SOCK_STREAM)
mySocket2.bind (myaddr, 5313 );
Which of the following source or destination port number fields in these four segments has the value of
3200?
D
source port: ?
dest port: ?
C
source port: ?
dest port: ?
P2
P3
transport
network
link
physical
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