Computer Network)
LAN (Local Area Network)
MAN (Metropolitan Area Network)
WAN(Wide Area Network)
LAN (Local Area Network)
MAN (Metropolitan...
•
•
•
•
•
•
Peer to Peer
Client Server• Peer to Peer Network
Peer)
Client Server
Peer to Peer
Workgroup) Windows 98/Me XP
• Client-Ser...
1. Ethernet/ Fast Ethernet/ Gigabit Ethernet
2. Wireless LAN
Ethernet / Fast Ethernet / Gigabit Ethernet LAN
LAN
Gbps
UTP ...
Wireless
• IEEE 802.11 GHz
Mbps
• IEEE 802.11b GHz
Mbps / 22Mbps
• IEEE 802.11a GHz, 5.47~
5.725GHz Mbps
• IEEE 802.11g GH...
• Ad-Hoc)
Access Point
•
Access Point)
Access Point
Protocol)
• Syntax Format) Structure)
address)
syntax
• Semantics
syntax
• Timing
Mbps
Mbps
Standard)
International Organization for Standardization (ISO)
• physical layer)
• data link layer)
node) 2
• network layer)
• transport layer)
• session layer)
-
-
module)
• presentati...
•
TCP/IP, FTP, HTTP HTTPs
TCP/IP (Transmission Control
Protocol/Internet Protocol)
ARPANET
TCP/IP
•
•
-
TCP/IP
Header Header
Encapsulate
Header
Demultiplexing
Encapsulation/Demultiplexing
TCP/IP
- Host-to-network)
IP
The
Internet Layer)
packet-switching network)
Connectionless)
Packet)
Protocol (TCP)
connection-oriented) Byte stream
message
message TCP
UDP (User
Datagram Protocol) connectionless)
client/se...
FTP (File Transfer Protocal)
FTP
• FTP
USER) User Interface
FTP FTP
PI (Protocol Interpreter module)
DT (Data Transfer
HTTP(Hyper Text
Transport Protocol)
•
HTTP
end-user)
HTTPs(Hypertext Transfer
Protocol Security )
• HTTP protocol
server client
Netscape
- -
Network Topology)
Network Topology)
point-to-pointConnection)
multipoint Connection)
point-to-point)
multipoint)
Bus Topology
backbone coaxial
terminator
-
Bus
•
–
– Star
–
•
–
– Terminator
–
Ring-Topology
•
Star-Topology
HUB)
• Star
•
•
Bus
hub switch
•
• Transmission Media)
• Hardware)
•
Software)
Router)
•
LAN
WAN
Switch
•
• Bandwidth 10/100/1000 Mbps
•
Hub
•
• Bandwidth 10/100/1000 Mbps
•
Hub
Switch
• Hub Hub
Hub Switch
Switch
Hub
– Hub Repeater)
Switch
Ethernet Card
•
Switch Hub
• Bandwidth 10/100/1000 Mbps
Ethernet Card
• LNK LINK
• MB/s
MB/s
• ACT (Activity) -
Modem
•
• Bandwidth 56 Kbp
Access Point
•
wireless)
• Bandwidth 11/54 Mbps
Wireless Card
•
• Bandwidth 11/54 Mbps
UTP (Unshielded Twist Pair)
•
Ethernet Switch Hub
• Bandwidth 10/100/1000 Mbps
•
UTP RJ-45
• UTP Ethernet Lan
RJ-45
• UTP
RJ-45
• A (Standard 568A)
•
•
•
•
•
•
•
• B (Standard 568B)
•
•
•
•
•
•
•
UTP RJ-
45
• UTP Straight Cable)
Hub Switch
A B
• UTP Cross-over Cable)
Hub Switch
Router (
UTP Straight Cable)
UTP Cross-over Cable
STP (Shielded Twisted Pair)
• UTP
UTP
• UTP
Fiber Optic
•
• Bandwidth 10/100/1000 Mbps
• m – 2Km
Duplex
• Half Duplex
Ethernet BaseT (10Mbps)
• Full Duplex
Fast Ethernet
(100Mbps) Gigabit Ethernet (1000Mbps)
•
•
digital
•
•
•
•
•
•
WIRELESS LAN)
•
• Wireless LAN WLAN)
•
• Mobility)
•
•
•
• PC
Notebook Pocket PC
PCMCIA
•
Cisco, Orinoco, Toshiba, 3Com, Linksys
• Access Point) :
LAN
• Ad-Hoc)
Access point)
• Infrastructure)
Access
point)
• WPAN (Wireless Personal Area Network)
IR (Infra-Red) Bluetooth
• WLAN (Wireless Local Area Network)
• FireWall)
•
• User
Name and Password)
• ipconfig ->
• Ping ->
• Nslookup ->
• Traceroute ->
.6/1
( คิง ) หน่วยที่ 1ความหมายและความสำคัญ
( คิง ) หน่วยที่ 1ความหมายและความสำคัญ
( คิง ) หน่วยที่ 1ความหมายและความสำคัญ
( คิง ) หน่วยที่ 1ความหมายและความสำคัญ
( คิง ) หน่วยที่ 1ความหมายและความสำคัญ
( คิง ) หน่วยที่ 1ความหมายและความสำคัญ
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( คิง ) หน่วยที่ 1ความหมายและความสำคัญ

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( คิง ) หน่วยที่ 1ความหมายและความสำคัญ

  1. 1. Computer Network)
  2. 2. LAN (Local Area Network) MAN (Metropolitan Area Network) WAN(Wide Area Network) LAN (Local Area Network) MAN (Metropolitan Area Network) WAN (Wide Area Network) World wide dial up/ Leased Line/ ISDN)
  3. 3. • • • • • •
  4. 4. Peer to Peer Client Server• Peer to Peer Network Peer) Client Server Peer to Peer Workgroup) Windows 98/Me XP • Client-Server - peer to peer client-server server
  5. 5. 1. Ethernet/ Fast Ethernet/ Gigabit Ethernet 2. Wireless LAN Ethernet / Fast Ethernet / Gigabit Ethernet LAN LAN Gbps UTP Fiber optic Wireless LAN
  6. 6. Wireless • IEEE 802.11 GHz Mbps • IEEE 802.11b GHz Mbps / 22Mbps • IEEE 802.11a GHz, 5.47~ 5.725GHz Mbps • IEEE 802.11g GHz Mbps • IEEE 802.11n GHz / 5GHz Mbps
  7. 7. • Ad-Hoc) Access Point
  8. 8. • Access Point) Access Point
  9. 9. Protocol)
  10. 10. • Syntax Format) Structure) address) syntax • Semantics syntax • Timing Mbps Mbps
  11. 11. Standard) International Organization for Standardization (ISO)
  12. 12. • physical layer) • data link layer) node) 2 • network layer) • transport layer) • session layer) - - module) • presentation layer)
  13. 13. • TCP/IP, FTP, HTTP HTTPs
  14. 14. TCP/IP (Transmission Control Protocol/Internet Protocol) ARPANET TCP/IP • • -
  15. 15. TCP/IP Header Header Encapsulate Header Demultiplexing
  16. 16. Encapsulation/Demultiplexing TCP/IP
  17. 17. - Host-to-network) IP The Internet Layer) packet-switching network) Connectionless) Packet)
  18. 18. Protocol (TCP) connection-oriented) Byte stream message message TCP UDP (User Datagram Protocol) connectionless) client/server system) request/reply) voice) Application Layer) TELNET FTP SMTP
  19. 19. FTP (File Transfer Protocal) FTP • FTP USER) User Interface FTP FTP PI (Protocol Interpreter module) DT (Data Transfer
  20. 20. HTTP(Hyper Text Transport Protocol) • HTTP end-user)
  21. 21. HTTPs(Hypertext Transfer Protocol Security ) • HTTP protocol server client Netscape - -
  22. 22. Network Topology)
  23. 23. Network Topology)
  24. 24. point-to-pointConnection) multipoint Connection) point-to-point) multipoint)
  25. 25. Bus Topology backbone coaxial terminator -
  26. 26. Bus • – – Star – • – – Terminator –
  27. 27. Ring-Topology •
  28. 28. Star-Topology HUB) • Star • • Bus hub switch
  29. 29. • • Transmission Media) • Hardware) • Software)
  30. 30. Router) • LAN WAN
  31. 31. Switch • • Bandwidth 10/100/1000 Mbps •
  32. 32. Hub • • Bandwidth 10/100/1000 Mbps •
  33. 33. Hub Switch • Hub Hub Hub Switch Switch Hub – Hub Repeater) Switch
  34. 34. Ethernet Card • Switch Hub • Bandwidth 10/100/1000 Mbps
  35. 35. Ethernet Card • LNK LINK • MB/s MB/s • ACT (Activity) -
  36. 36. Modem • • Bandwidth 56 Kbp
  37. 37. Access Point • wireless) • Bandwidth 11/54 Mbps
  38. 38. Wireless Card • • Bandwidth 11/54 Mbps
  39. 39. UTP (Unshielded Twist Pair) • Ethernet Switch Hub • Bandwidth 10/100/1000 Mbps •
  40. 40. UTP RJ-45 • UTP Ethernet Lan RJ-45 • UTP
  41. 41. RJ-45 • A (Standard 568A) • • • • • • •
  42. 42. • B (Standard 568B) • • • • • • •
  43. 43. UTP RJ- 45 • UTP Straight Cable) Hub Switch A B • UTP Cross-over Cable) Hub Switch Router (
  44. 44. UTP Straight Cable)
  45. 45. UTP Cross-over Cable
  46. 46. STP (Shielded Twisted Pair) • UTP UTP • UTP
  47. 47. Fiber Optic • • Bandwidth 10/100/1000 Mbps • m – 2Km
  48. 48. Duplex • Half Duplex Ethernet BaseT (10Mbps) • Full Duplex Fast Ethernet (100Mbps) Gigabit Ethernet (1000Mbps)
  49. 49. • • digital • • •
  50. 50. • • •
  51. 51. WIRELESS LAN) • • Wireless LAN WLAN)
  52. 52. • • Mobility) • • •
  53. 53. • PC Notebook Pocket PC PCMCIA • Cisco, Orinoco, Toshiba, 3Com, Linksys • Access Point) : LAN
  54. 54. • Ad-Hoc) Access point) • Infrastructure) Access point)
  55. 55. • WPAN (Wireless Personal Area Network) IR (Infra-Red) Bluetooth • WLAN (Wireless Local Area Network)
  56. 56. • FireWall) • • User Name and Password)
  57. 57. • ipconfig -> • Ping -> • Nslookup -> • Traceroute ->
  58. 58. .6/1

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