Frame Relay Back-to-Back

Configuration Frame relay simple en back to back avec une liaison serial

• R1 est DTE
• R2 est DCE (clock rate)

Remarque :

dans cette configuration, en l’absence de nuage FrameRelay, l’envoie de paquets LMI doit être désactivé « no keepalive »
Un DLCI est utilisé entre R1 et R2, un autre entre R2 et R1 ( mais un seul DLCI aurait pu être utilisé)

Configuration

R1#show run int s0/1

interface Serial0/1
 ip address 200.1.1.1 255.255.255.0
 encapsulation frame-relay
 no keepalive
 frame-relay map ip 200.1.1.3 303
 frame-relay interface-dlci 113
end

R3#show run int s1/2

interface Serial1/2
 ip address 200.1.1.3 255.255.255.0
 encapsulation frame-relay
 no keepalive
 clock rate 64000
 frame-relay map ip 200.1.1.1 113
 frame-relay interface-dlci 303
end

Vérifications

R3#sh frame map
Serial1/2 (up): ip 200.1.1.1 dlci 113(0x71,0x1C10), static,
              CISCO

R3#debug frame-relay packet
Frame Relay packet debugging is on

*Mar  6 08:30:16.911: Serial1/2(i): dlci 303(0x48F1), pkt type 0x800, datagramsize 104
*Mar  6 08:30:16.911: Serial1/2(o): dlci 113(0x1C11), pkt type 0x800(IP), datagramsize 104
*Mar  6 08:30:16.943: Serial1/2(i): dlci 303(0x48F1), pkt type 0x800, datagramsize 104
*Mar  6 08:30:16.943: Serial1/2(o): dlci 113(0x1C11), pkt type 0x800(IP), datagramsize 104
*Mar  6 08:30:16.975: Serial1/2(i): dlci 303(0x48F1), pkt type 0x800, datagramsize 104
*Mar  6 08:30:16.975: Serial1/2(o): dlci 113(0x1C11), pkt type 0x800(IP), datagramsize 104
*Mar  6 08:30:17.007: Serial1/2(i): dlci 303(0x48F1), pkt type 0x800, datagramsize 104
*Mar  6 08:30:17.011: Serial1/2(o): dlci 113(0x1C11), pkt type 0x800(IP), datagramsize 104
*Mar  6 08:30:17.043: Serial1/2(i): dlci 303(0x48F1), pkt type 0x800, datagramsize 104
*Mar  6 08:30:17.043: Serial1/2(o): dlci 113(0x1C11), pkt type 0x800(IP), datagramsize 104
*Mar  6 08:30:27.651: Serial1/2(i): dlci 303(0x48F1), pkt type 0x800, datagramsize 104
*Mar  6 08:30:27.651: Serial1/2(o): dlci 113(0x1C11), pkt type 0x800(IP), datagramsize 104
*Mar  6 08:30:27.683: Serial1/2(i): dlci 303(0x48F1), pkt type 0x800, datagramsize 104