Dr. Tim Lin ECE Department Cal Poly Pomona2/15/10 CS499 Dr. Lin on Networking Fundamentals...
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2/15/10 Dr. Tim Lin ECE Department Cal Poly Pomona EXIT >
Transcript of Dr. Tim Lin ECE Department Cal Poly Pomona2/15/10 CS499 Dr. Lin on Networking Fundamentals...
2/15/10
Dr. Tim Lin ECE Department Cal Poly Pomona
EXIT >
Agenda • What is Computer Network • ISO / OSI model • Internet Organizations • IP Addresses
– v4 • Classful • Classless
– V6 • IP Protocol
– Header • ICMP Protocol • ARP Protocol
• UDP Protocol • TCP Protocol
– Header – TCP Connection – Flow Control – Error Control – Congestion Control
• FTP Protocol • HTTP Protocol • SMTP Protocol • Network Commands • Technology (LAN) • What’s not covered
Figure 14.1 Position of UDP in the TCP/IP protocol suite
Figure 14.2 User datagram format
Figure 13.1 Network layer versus transport layer
Figure 13.2 Port numbers
Figure 13.3 IP addresses versus port numbers
DayTime Port Java Run
DayTime Result
Port 13 for DayTime
DayTime Server
Figure 13.4 ICANN ranges
See TCP / UDP ports in PDF file
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Transport Layer Controls
• Flow Control • Error Control
Figure 13.8 Pushing or pulling
Figure 13.9 Flow control at the transport layer
Figure 13.10 Error control at the transport layer
Packets
Error Control
Figure 13.11 Sliding window in circular format
Figure 13.12 Sliding window in linear format
Figure 13.13 Connectionless service
Figure 13.14 Connection-oriented service
Figure 13.16 Simple protocol
Figure 13.19 Stop-and-wait protocol
Figure 13.21 Example 13.4
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Figure 13.22 Go-Back-N protocol
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Figure 13.23 Send window for Go-Back-N
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Figure 13.24 Sliding the send window
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Figure 13.25 Receive window for Go-Back-N
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Figure 13.27 Send window size for Go-Back-N
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Figure 13.28 Example 13.7
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Figure 15.1 TCP/IP protocol suite
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Figure 15.3 Sending and receiving buffers
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Figure 15.4 TCP segments
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Figure 15.5 TCP segment format
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Figure 15.6 Control field
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Figure 15.7 Pseudoheader added to the TCP segment
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Figure 15.8 Encapsulation
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Figure 15.9 Connection establishment using three-way handshake
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Figure 15.10 Data Transfer
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Figure 15.15 Time-line diagram for Figure 15.14
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Figure 15.22 Send window in TCP
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Figure 15.23 Receive window in TCP
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Figure 15.29 Normal operation
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Figure 15.30 Lost segment
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Figure 15.35 Congestion avoidance, additive increase
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Figure 15.37 Congestion example
