Title: Network? ??
1???? ??
- Network? ??
- Network Cabling
- Ethernet
2 Network? ??
- Network? ????? ??.
- ????? ????? ??.
- ??? ???? ? Topology? ??.
- Network ??? ??? ??.
- Cisco 3 Layer? ????.
3????? ??
- ??? ????
- ??? ?? ?? ??
- ??? ?????? ?? ?? ???
- ?????
- ?? ???(Hosts) ?? ??
- ???? ??
- LAN(Local Area Network)
- WAN(Wide Area Network)
- MAN(Metropolitan Aera Network)
4????? ??
????? ??? ??? ?? ??
5???? ????
- ????
- ???? ??? (NIC) ???, ??
- ???? Wire, Wireless ? ???
- ?? ???? Hub, ??? ? ????
- ?????
- ????(Protocol) ?? ??
- ????? ?????
- ??? ????
- ?? ??? ?? ????
6????? ??
- LAN(Local Area Network)
- ??, ???, ??? ?? ??(?? ? Km)?? ??? ??? ???? ??? ?
- LAN? ?? ??? Ethernet(10 Mbps), Token-Ring(16
Mbps), FDDI(100 Mbps) - MAN(Metropolitan Area Network)
- ??, ??? ?? ??(?? ? ? Km)?? ??? ????
??? ? - LAN? ?? ??? ??
- WAN(Wide Area Network)
- ??? ??, ??? ??? ???? ??? ?
- ?????
- ? Kbps ? Mbps
7?? ??? ?? ??
- ????? ??
- ?? ?? (???)
- ?? ?? (???)
- ?? ??? ??? ??
- ???? ??
- ??? ??
8?? ??? ?? ??
- ???? ??
- ???-??? ?? ??
- ?????-???? ?? ??
- ??
- ??? ?? ???? ??? ??
- ???? ?? ??? ??? ??
- ??? ?? ??? ??(FDM Frequency Division
Multiplexing) - ??? ??
- ????? ??
- DSU(Digital Service Unit)
- ???????(PCM Pulse Code Modulation)
9?? ??? ?? ??
- ??(Switching)
- ?? ??? ?? ?, ??? ??? ??? 1 ? 1? ??? ???
10?? ??? ?? ??
?? ??
??(Store)?? ??
11?? ??? ?? ??
- ????
- ?? ?? ???? ?? ? ??? ?? ????? ??
- ???? ?? ?
12?? ??? ?? ??
- ???? ??
- ??? ??
- ??? ?? ??(store and forward)? ??
13?? ??? ?? ??
- ???? ??
- ?? ??
- ? ??? ?? ????? ??(datagram)
14??? ?? ??
- ?? ??(Transmission mode)
- ??? ?? ???? ?? ?? ??? ??
15??? ?? ??
- ?? ??(Transmission mode)
- ???(Simplex)
- ?? ??(???, ???)
- ???(Half-Duplex)
- ? ??? ?/??? ???? ??? ?/??? ???
- ???(Full-Duplex)
- ? ??? ??? ?/??? ??
16??? ?? ??
??? ?? ??(39?)
17??? ?? ??
- ???(Half-Duplex)
- ?? ??? ???
18??? ?? ??
- ???(Full-Duplex)
- ?? ??? ??
19??? ?? ??
- ???? ?? ??
- ??(Contention)
- CSMA/CD (Carrier Sense Multiple Access with
Collision Detection) - CSMA/CA (Carrier Sense Multiple Access with
Collision Avoidance) - ????(Token Passing)
- Token Ring
- Token Bus
- ?? ?? ??(Demand Priority)
- ??(Polling)
20??? ?? ??
- ????(Token Passing)
- ?? ??? ??? ???? ???? ???? ?? ??? ??? ??
- ??? ?? ??? ??
- ???? ???? ?? ???? ??? ??? ??? ?
- ??? ??? ??? ?? ??
- Token Ring
- Token Bus
21??? ?? ??
- Token Ring(IEEE 802.5)
- ArcNet
22??? ?? ??
- Token Bus (IEEE 802.4)
- ???-???
- ???-?? ??
- ?? ?? ??(Demand Priority)
- ??? ??? ?? ??
- QoS
- ??
- 100VG-AnyLAN
- ??(Polling)
- ?? ???? ??? ??? ??-?? ???
- IBM? SNA
23???? ?? ? ????
- ???? ??(Categories of topology)
24???? ?? ? ????
- Bus ?
- ??? ??
- ??(Backbone)? ???? ?? ??? ??
- ??? drop lines? taps? ?? ?? ???? ????
- ???(drop line)
- ? ???? ??? ???? ?
- ?(tap)
- ? ???? ?? ??? ??? ???? ???? ?? ???? ??? ??? ??
- ?? ??(Terminator, Cable end)
- ?? ?? ??
25???? ?? ? ????
?? ????(55?)
26???? ?? ? ????
- Bus ?
- ??
- ??? ??(?? ???? ???? ?? ??)
- ????? ??? ??? ??? ??? ?? ??
- ??
- ?? ??? ?? ??? ???(?? ???)
- ???? ?? ??(fault isolation)? ???
- ?? ??? ??? ?? ??? ????? ??
27???? ?? ? ????
- Ring ?
- ? ??? ???? ??? ?-?-? ??? ???
- ??
- ???? ??? ?? ?
- ??? ??? ???? ??.
- ??? ???? ??? ???? ????? ??? ???? ??
- ??
- ????? ???
- ?? ??? ???? ?? ????? ??? ???
- dual ring?? ??
28???? ?? ? ????
? ????(56?)
29???? ?? ? ????
- Star ?
- ? ??? ??(hub)?? ?? ???? ?-?-? ??? ???
??? ??? ?? ????(57?)
30???? ?? ? ????
- Star ?
- ??
- ? ??? ??? ??? ??? I/O ??? ??? ??? ??? ???? ??
- ???
- ??? ??? ??? ???? ?? ??? ??? ???
- ??
- ??? ??? ??? ??? ???? ???.
- ??? ??? ??(100M)
31???? ?? ? ????
- Star Bus ????(Tree ?)
- ???? ??
- ???? hub(?? hub) active
- ???? ?? ??? ?? ??? ???? ???? ??? ???(repeater)?
?? - ???? hub passive
- ??? ???? ??? ??? ??? ??
32???? ?? ? ????
?? ?? ???? ????(59?)
33???? ?? ? ????
- Star Bus ????(Tree ?)
- ?? ??
- ????? ???? ??
- ?? ? Cable TV ??
- Star Ring ????
- ???-??
- ???-?
- ??-??? ??
- ??-???? ??
34???? ?? ? ????
- Mesh ?
- ?? ??? ?? ??? ?? ?-?-? ??? ???
- N ?? ??? ?? ??? ????? n(n-1)/2 ?? ??? ???
35???? ?? ? ????
?? ????(61?)
36???? ?? ? ????
- Mesh ?
- ??
- ?? ??
- ???
- ?????? ??
- ?-?-? ??? ?? ??? ??? ??
- ??
- ????? I/O ???? ??
- ?? ??? ?? ??? ?? ?? ??? ??? ???? ???
- ??? ??? ?? ??? ???? ? ? ??(??, ?, ?? ?)
- ? ?? ??? ??? ????? ??? ????
37???? ?? ? ????
38???? ???? ??
- ??? ??? ?? ??
- ??? ??(synchronous transmission)
- ? ??? ?? ??? ??? ?? ??? ??(?? ?? ??)
- ??/?? ?? ?? ??? ??
- ?? ??(speed)
39???? ???? ??
- ??? ??? ?? ??
- ??? ??(Asynchronous Transmission)
- ? ???? ??? ???? ??? ?? ??(0)? ?? ?? ? ??? ??
??(1) ??
40???? ???? ??
- ??? ??(Asynchronous Transmission)
- ?? ?? ???(Connection Oriented Services)
- ???? ???? ??? ??? ? ??
- ????(Ack), TCP
- ??? ?? ???(Connectionless Oriented Services)
- ??? ??? ?? ?? ????? ??
- ???
- ???? ??, UDP
- ?? ???
- QoS
41 Network Cabling
- UTP Cable? ??? ?? ??? ? ??.
- WAN Physical Layer? Cable? ??.
- Interface? ??? ??.
?) IOS Internetwork Operating System
42UTP Cable ????
- ?? ??(Attenuation)
- ????(Cross Talk)
- Near End Crosstalk Twisted Pair Cable? ? ???
???? ?? ????. - Far End CrossTalk Pair?? ???? ??????.
- Noise TP(Twisted Pair) Cable? ??? ?? Cable(??
?)? ?? ???? ?? ????. - ????(Propagation Delay) UTP Cable? Pair?? ???
??? ??? Pair ?? ?? ?? ??? ??? ??? 4 Pair ??? ???
???? ??? ?????? ??.
43Baseband Broadband
Baseband
- ? ???? ?? ????? ??? ??? ???? ???? ????? ????.
- ??? Duplex ???? ????.
- ?? ??? Repeater ????.
Broadband
- ? ???? ?? ????? ??? ???? ? ???? ?? ?? ??? ???
??? ? ??.?, ? ???? ?? ?? ??? ??? ? ? ??. - ? ??? ? ?? ??(Simplex) ????.
- ?? ???? ??? ??? ???? ?? ??? Amplifier ????.
44UTP ??? ??
- Category 1 ??? ????? ?? ???? ????.
- Category 2 4Mbps ???? ???? Data ???? ????
???. - Category 3 ???? ???? ???? ???? 16Mbps? ????
???? 10Mbps Ethernet? ????. - Category 4 20Mbps??? ??? ?? ??? ???? 10Mbps
Ethernet? ????. - Category 5 10Mbps,100Mbps,1Gbps Ethernet?
????. - Category 5 Enhanced Fast Ethernet ? 155M ATM?
????. - Category 6 7 Gigabit Ethernet? ????.
45Fast Ethernet Topology and Network Diameter
46Ethernet Cabling and Connector Specifications
100BaseTX
10Base5
10BaseT
100BaseFX
EIA/TIA Cat 3, 4, 5 UTP 2 pair
EIA/TIA Cat 5 UTP 2 pair
62.5/125 micron multi-mode fiber
50-ohm coax (thick)
Media
Maximum Segment Length
500 meters
100 meters
400 meters
100 meters
Bus
Star
Star
Topology
Point-to-Point
Duplex media- interface connector (MIC) ST
ISO 8877 (RJ-45)
ISO 8877 (RJ-45)
AUI
Connector
47UTP Implementation
48Straight-through Cable
Cable 10BaseT/100BaseT Straight-through
Straight-through Cable
8
1
Hub/Switch
Server/Router
8
1
Pin Label 1 TD 2 TD- 3 RD 4 NC 5 NC 6 RD- 7 NC
8 NC
Pin Label 1 RD 2 RD- 3 TD 4 NC 5 NC 6 TD- 7 NC
8 NC
8
1
8
1
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49Crossover Cable
Cable 10BaseT/100BaseT Crossover
Crossover Cable
Hub/Switch
Hub/Switch
8
1
Pin Label 1 RD 2 RD- 3 TD 4 NC 5 NC 6 TD- 7 NC
8 NC
Pin Label 1 RD 2 RD- 3 TD 4 NC 5 NC 6 TD- 7 NC
8 NC
1
8
8
1
8
1
wg
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50Setting up a Console Connection
Device with console
- PCs require an RJ-45 to DB-9 or RJ-45 to DB-25
adapter - COM port settings are 9600 bps, 8 data bits, no
parity, 1 stop bit, no flow control - This provides out-of-band console access
- AUX switch port may be used for modem-connected
console - Console Port? RTS, CTS Pin? ?? Flow Control? ??
???, 9600? ??? Modem ??? ????.
51Console Connection Rollover Cable
The cable used to connect between a PC is a
rollover cable with RJ-45 connectors. 18 27 36
45 54 63 72 81