computer networks 1 (mạng máy tính 1)ptvu/net1/oldslides/mmt1-lec1.pdf · 3 course outline (1)...
TRANSCRIPT
![Page 1: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/1.jpg)
Computer Networks 1
(Mạng Máy Tính 1)
Lectured by: Dr. Phạm Trần Vũ
![Page 2: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/2.jpg)
2
Course details
� Number of credits: 4
� Study time allocation per week:
� 3 lecture hours for theory
� 2 lecture hours for exercises and lab work
� 8 hours for self-study
� Website:
� http://www.cse.hcmut.edu.vn/~ptvu/net1/
![Page 3: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/3.jpg)
3
Course outline (1)
� Fundamental concepts in the design and implementation of computer networks
� Protocols, standards and applications
� Introduction to network programming.
![Page 4: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/4.jpg)
4
Course outline (2)
� The topics to be covered include:
� Introduction to network architecture, OSI and the TCP/IP reference models.
� Network technologies, especially LAN technologies (Ethernet, wireless networks and Bluetooth).
� Issues related to routing and internetworking, Internet addressing and routing.
� Internet transport protocols (UDP and TCP)
� Network-programming interface
� Application layer protocols and applications such as DNS, E-mail, and WWW.
![Page 5: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/5.jpg)
5
References
� “Computer Networks”, Andrew S. Tanenbaum, 4th
Edition, Prentice Hall, 2003.
� “TCP/IP Protocol Suite”, B. A. Forouzan, Mc Graw-
Hill, 1st ed., 2000.
![Page 6: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/6.jpg)
6
Assessment
� Assignment 20%
� Two assignments, 10% each
� Midterm exam: 20%
� Final exam: 60%
� Laboratory work is compulsory
� No lab work = No assignment mark
![Page 7: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/7.jpg)
Lecture 1: Introduction to Computer
Networks
Reference:
Chapter 1 - “Computer Networks”,
Andrew S. Tanenbaum, 4th Edition, Prentice Hall, 2003.
![Page 8: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/8.jpg)
8
Uses of Computer Networks
� Business Applications
� Scientific Applications
� Home Applications
� Mobile Users
![Page 9: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/9.jpg)
9
Business Applications of Networks (1)
� A network with two clients and one server.
![Page 10: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/10.jpg)
10
Business Applications of Networks (2)
� The client-server model involves requests
and replies.
![Page 11: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/11.jpg)
11
Scientific Applications
� Grid computing infrastructure to support scientific
research
![Page 12: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/12.jpg)
12
Home Network Applications (1)
� Access to remote information
� Person-to-person communication
� Interactive entertainment
� Electronic commerce
![Page 13: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/13.jpg)
13
Home Network Applications (2)
� In peer-to-peer system there are no fixed
clients and servers.
![Page 14: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/14.jpg)
14
Home Network Applications (3)
� Some forms of e-commerce.
![Page 15: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/15.jpg)
15
Mobile Network Users
� Combinations of wireless networks and
mobile computing.
![Page 16: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/16.jpg)
16
Network Hardware
� Local Area Networks
� Metropolitan Area Networks
� Wide Area Networks
� Wireless Networks
� Home Networks
� Internetworks
![Page 17: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/17.jpg)
17
Local Area Networks
� Two broadcast networks
� (a) Bus
� (b) Ring
![Page 18: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/18.jpg)
18
Metropolitan Area Networks
� A metropolitan area network based on cable
TV.
![Page 19: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/19.jpg)
19
Wide Area Networks (1)
� Relation between hosts on LANs and the
subnet.
![Page 20: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/20.jpg)
20
Wide Area Networks (2)
� A stream of packets from sender to receiver.
![Page 21: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/21.jpg)
21
Wireless Networks (1)
� Categories of Wireless Networks
� System interconnections
� Wireless LANs
� Wireless WANs
![Page 22: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/22.jpg)
22
Wireless Networks (2)
� (a) Bluetooth configuration
� (b) Wireless LAN
![Page 23: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/23.jpg)
23
Wireless Networks (3)
� (a) Individual mobile computers
� (b) A flying LAN
![Page 24: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/24.jpg)
24
Home Network Categories
� Computers: desktop PC, PDA, shared peripherals
� Entertainment: TV, DVD, VCR, camera, MP3
� Telecomm: telephone, cell phone, intercom, fax
� Appliances: microwave, fridge, clock, aircon
� Telemetry: utility meter, burglar alarm, babycam
![Page 25: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/25.jpg)
25
Network Software
� Protocol Hierarchies
� Design Issues for the Layers
� Connection-Oriented and Connectionless
Services
� Service Primitives
� The Relationship of Services to Protocols
![Page 26: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/26.jpg)
26
Network SoftwareProtocol Hierarchies
� Layers, protocols, and interfaces.
![Page 27: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/27.jpg)
27
Protocol Hierarchies (2)
� The philosopher-translator-secretary architecture.
I like rabbits
Location A
3
2
1
3
2
1
Location B
Message Philosopher
Translator
Secretary
Information for the remote translator
Information for the remote secretary
L: Dutch
Ik vind
konijnen
leuk
Fax #---
L: Dutch
Ik vind
konijnen
leuk
J'aime bien les
lapins
L: Dutch
Ik vind
konijnen
leuk
Fax #---
L: Dutch
Ik vind
konijnen
leuk
![Page 28: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/28.jpg)
28
Protocol Hierarchies (3)
� Example information flow supporting virtual
communication in layer 5.
![Page 29: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/29.jpg)
29
Design Issues for the Layers
� Addressing
� Error Control
� Flow Control
� Multiplexing
� Routing
![Page 30: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/30.jpg)
30
Connection-Oriented and Connectionless
Services
� Six different types of service.
![Page 31: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/31.jpg)
31
Service Primitives
� Five service primitives for
implementing a simple connection-
oriented service.
![Page 32: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/32.jpg)
32
Service Primitives (2)
� Packets sent in a simple client-server
interaction on a connection-oriented
network.
![Page 33: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/33.jpg)
33
Services to Protocols Relationship
� The relationship between a service and a
protocol.
![Page 34: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/34.jpg)
34
Reference Models
� The OSI Reference Model
� The TCP/IP Reference Model
� A Comparison of OSI and TCP/IP
� A Critique of the OSI Model and Protocols
� A Critique of the TCP/IP Reference Model
![Page 35: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/35.jpg)
35
OSI Reference Model
The OSI
reference
model.
![Page 36: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/36.jpg)
36
TCP/IP Reference Models (1)
� The TCP/IP reference model.
![Page 37: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/37.jpg)
37
TCP/IP Reference Model (2)
� Protocols and networks in the TCP/IP model
initially.
![Page 38: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/38.jpg)
38
Comparing OSI and TCP/IP
Models
� Concepts central to the OSI model
� Services
� Interfaces
� Protocols
![Page 39: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/39.jpg)
39
A Critique of the OSI Model and
Protocols
� Why OSI did not take over the world
� Bad timing
� Bad technology
� Bad implementations
� Bad politics
![Page 40: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/40.jpg)
40
Bad Timing
� The apocalypse of the two elephants.
![Page 41: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/41.jpg)
41
A Critique of the TCP/IP Reference
Model
� Problems:
� Service, interface, and protocol not distinguished
� Not a general model
� Host-to-network “layer” not really a layer
� No mention of physical and data link layers
� Minor protocols deeply entrenched, hard to
replace
![Page 42: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/42.jpg)
42
Hybrid Model
� The hybrid reference model to be used in
this book.
![Page 43: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/43.jpg)
43
Example Networks
� The Internet
� Connection-Oriented Networks:
X.25, Frame Relay, and ATM
� Ethernet
� Wireless LANs: 802:11
![Page 44: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/44.jpg)
44
The ARPANET (1)
� (a) Structure of the telephone system.
� (b) Baran’s proposed distributed switching system.
![Page 45: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/45.jpg)
45
The ARPANET (2)
� The original ARPANET design.
![Page 46: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/46.jpg)
46
The ARPANET (3)
� Growth of the ARPANET (a) December 1969. (b) July 1970.
� (c) March 1971. (d) April 1972. (e) September 1972.
![Page 47: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/47.jpg)
47
NSFNET
� The NSFNET backbone in 1988.
![Page 48: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/48.jpg)
48
Internet Usage
� Traditional applications (1970 – 1990)
� News
� Remote login
� File transfer
![Page 49: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/49.jpg)
49
Architecture of the Internet
� Overview of the Internet.
![Page 50: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/50.jpg)
50
ATM Virtual Circuits
� A virtual circuit.
![Page 51: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/51.jpg)
51
Ethernet
� Architecture of the original Ethernet.
![Page 52: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/52.jpg)
52
Wireless LANs (1)
� (a) Wireless networking with a base station.
� (b) Ad hoc networking.
![Page 53: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/53.jpg)
53
Wireless LANs (2)
� The range of a single radio may not cover
the entire system.
![Page 54: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/54.jpg)
54
Wireless LANs (3)
� A multicell 802.11 network.
![Page 55: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/55.jpg)
55
Network Standardization
� Who’s Who in the Telecommunications World
� Who’s Who in the International Standards
World
� Who’s Who in the Internet Standards World
![Page 56: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/56.jpg)
56
ITU
� Main sectors
• Radiocommunications
• Telecommunications Standardization
• Development
� Classes of Members
• National governments
• Sector members
• Associate members
• Regulatory agencies
![Page 57: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/57.jpg)
57
IEEE 802 Standards
The 802 working groups. The important ones are marked
with *. The ones marked with � are hibernating. The one
marked with † gave up.
![Page 58: Computer Networks 1 (Mạng Máy Tính 1)ptvu/net1/oldslides/MMT1-Lec1.pdf · 3 Course outline (1) Fundamental concepts in the design and implementation of computer networks Protocols,](https://reader030.vdocument.in/reader030/viewer/2022040422/5e11526a6c07b5186620b9f8/html5/thumbnails/58.jpg)
58
Metric Units
� The principal metric prefixes.