????(Network topology)

1
? ? ? ?(?)
??????? ???
2
????

• ??????
• ?????
• ???????
• ????

3
??????

• ????
• ????(Network topology)
• ????(Cable type)
• ??????(Protocol)
• ????

4
????

• ????(LANLocal Area Network)
• ????(WANWide Area Network)
• ????(MANMetropolitan Area Network)

5
????

• Bus (???)
• Ring (IBM)
• Star (???LAN)
• Mesh (??WAN,?????????)

6
????

• ????(Coaxial)
• ???(Twisted-pair)
• ???(UTP, Unshielded twisted-pair)
• ??(STP, Shielded twisted-pair)
• ??(Fiber-optic)

7
??????
OSI??????
Application Layer
Presentation Layer
Session Layer
Transport Layer
Network Layer
Data Link Layer
Physical Layer
8
??????(?)

• TCP/IP (UNIX, Internet)
• IPX/SPX (Novell) -gt NWLink
• NetBUEI (Microsoft)
• APPLE TALK (Apple)

9
TCP/IP
Application Layer
FTP
Telnet
Http
Presentation Layer
Session Layer
Transport Layer
TCP
Network Layer
IP
LAN drivers
Data Link Layer
Media Access Control
Physical Layer
Physical
10
????

• ADSL(Asymmetric Digital Subscriber Line)
• ???? HiBuiding
• Cable TV

11
?????
?? -gt ?? -gt ??? -gt ???
12
?????(?)
13
?????(?)
14
?????(?)
15
?????(?)
16
?????(?)
17
?????(?)
18
????
???? -gt ????
19
????(?)
20
????(?)
21
????(?)
22
????(?)
23
????(?)
24
????(?)
25
????(?)
26
????(?)
27
??????
?? -gt ?? -gt ??? -gt ??
28
??????(?)
29
??????(?)
30
??????(?)
31
??????(?)
32
??????(?)
33
????

• ??????????
• ????????TCP/IP
• Ping 127.0.0.1
• ?????????
• Winipcfg (95/98)
• Ipconfig /all (NT)

34
winipcfg (??)
35
winipcfg (LAN)
36
????(?)

• ?????????
• Ping localhost
• Ping default gateway
• ex ping 140.129.79.254
• Ping remote computers
• ex ping 168.95.1.83
• ping www.hinet.net