Frame-Relay

■ 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)

Frame-Relay 토폴로지

 

Frame-Realy 설정

 

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

frame-relay.pkt

0.04MB