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Net Eng
Frame-Relay 본문
■ Frame-Relay
2계층 캡슐화 프로토콜 분류
1. LAN : MAC, LLC
2. WAN :
- Circuit Switching(회선교환) : PPP, HDLC, SDLC, SLIP
→ 물리적으로 점대점 연결이 가능
- Packet Switching(패킷교환) : X.25, Frame-relay, ATM(53byte, 비동기전송모드)
→ 가상회선(VC)를 이용한 점다 다중 연결이 가능
- Leased Line(전용선)
R1
en
conf t
int s2/0
no sh
encap frame-relay
exit
int s2/0.102 point-to-point
ip addr 192.168.12.1 255.255.255.0
frame-relay interface-dlci 102
int s2/0.103 point-to-point
ip addr 192.168.13.1 255.255.255.0
frame-relay interface-dlci 103
int L0
ip addr 192.168.1.1 255.255.255.0
router rip
net 192.168.1.0
net 192.168.12.0
net 192.168.13.0
- multipoint : 3개 이상의 지점이 동일한 주소대역 사용시
- point-to-point : 2개의 지점만 동일한 주소대역 사용시
R2
en
conf t
int s2/0
no sh
encap frame-relay
exit
int s2/0.201 point-to-point
ip addr 192.168.12.2 255.255.255.0
frame-relay interface-dlci 201
int s2/0.103 point-to-point
ip addr 192.168.23.1 255.255.255.0
frame-relay interface-dlci 203
int L0
ip addr 192.168.2.1 255.255.255.0
router rip
net 192.168.2.0
net 192.168.12.0
net 192.168.23.0
R3
en
conf t
int s2/0
no sh
encap frame-relay
exit
int s2/0.301 point-to-point
ip addr 192.168.13.2 255.255.255.0
frame-relay interface-dlci 301
int s2/0.302 point-to-point
ip addr 192.168.23.2 255.255.255.0
frame-relay interface-dlci 302
int L0
ip addr 192.168.2.1 255.255.255.0
router rip
net 192.168.3.0
net 192.168.13.0
net 192.168.23.0
■ 실습파일