v Network v Network Cabling v Ethernet 21

네트워크 개요 v Network의 이해 v Network Cabling v Ethernet 2_1

데이터 전송 기술 q 통신회선 접근 방식 • 경쟁(Contention) § CSMA/CD (Carrier Sense Multiple Access with Collision Detection) § CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) • 토큰패싱(Token Passing) § Token Ring § Token Bus • 요청 우선 순위(Demand Priority) • 폴링(Polling) 2_19

데이터 전송 기술 q Token Ring(IEEE 802. 5) • Arc. Net 2_21

v Network Cabling § UTP Cable의 종류를 알고 구성할 수 있다. § WAN Physical Layer의 Cable을 안다. § Interface의 구성을 안다. 주) IOS : Internetwork Operating System 2_41

Fast Ethernet Topology and Network Diameter 100 Base-T 4 100 Base-TX 5 meters Hub Hub 100 meters Network Diameter 205 meters 2_45

Ethernet Cabling and Connector Specifications 10 Base 5 10 Base. T 100 Base. TX 100 Base. FX Media 50 -ohm coax (thick) EIA/TIA Cat 3, 4, 5 UTP 2 pair EIA/TIA Cat 5 UTP 2 pair 62. 5/125 micron multimode fiber Maximum Segment Length 500 meters 100 meters 400 meters Topology Bus Star Point-to-Point Connector AUI ISO 8877 (RJ-45) Duplex mediainterface connector (MIC) ST 2_46

Straight-through Cable 10 Base. T/ 100 Base. T Straight-through Hub/Switch Pin 1 2 3 4 5 6 7 8 Label RD+ RDTD+ NC NC TDNC NC Server/Router Pin 1 2 3 4 5 6 7 8 Label TD+ TDRD+ NC NC RDNC NC Straight-through Cable 8 1 8 1 w o w b w g w br o b g br 2_48

Crossover Cable 10 Base. T/ 100 Base. T Crossover Hub/Switch Pin 1 2 3 4 5 6 7 8 Label RD+ RDTD+ NC NC TDNC NC Crossover Cable Hub/Switch Pin 1 2 3 4 5 6 7 8 Label RD+ RDTD+ NC NC TDNC NC 8 1 1 8 8 1 br w g w o w b b w br g o 8 br 1 w br w w o b bw g g o 2_49

Setting 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 Port는 RTS, CTS Pin이 없어 Flow Control을 하지 않으며, 9600의 속 도로 Modem 연결이 가능하다. 2_50

Console Connection & Rollover Cable The cable used to connect between a PC is a rollover cable with RJ-45 connectors. 1– 8 2– 7 3– 6 4– 5 5– 4 6– 3 7– 2 8– 1 2_51