Configuration d’un switch frame-relay

Dans cette architecture nous avons trois routeurs dont un qui à le role de switch Frame-Relay.

 

Configuration du swith frame-relay

Pour cela il est necessaire d’activer le frame-relay switching :

frame-relay switching.

Ensuite il faut définir quel port sera attaché à tel routeur avec les bon DLCI. Dans notre exemple, nous aurons la configuration suivante :

 R1 |-DLCI 104 ---------------se0/0-| FR1 |-se0/1---------------DLCI 401-| R4  

Configuration de FR1 :

interface Serial0/0
 no ip address
 encapsulation frame-relay
 serial restart-delay 0
 frame-relay intf-type dce
 frame-relay route 104 interface Serial0/1 401
!
interface Serial0/1
 no ip address
 encapsulation frame-relay
 serial restart-delay 0
 frame-relay intf-type dce
 frame-relay route 401 interface Serial0/0 104
!

Configuration des interfaces series de R1 et R4 :

R1#sh run int se1/0
Building configuration...

Current configuration : 212 bytes
!
interface Serial1/0
 ip address 192.168.1.1 255.255.255.0
 encapsulation frame-relay
 serial restart-delay 0
 frame-relay map ip 192.168.1.4 104
 frame-relay interface-dlci 104
 no frame-relay inverse-arp

interface Serial0/0
 ip address 192.168.1.4 255.255.255.0
 encapsulation frame-relay
 serial restart-delay 0
 frame-relay map ip 192.168.1.1 401
 frame-relay interface-dlci 401
 no frame-relay inverse-arp

Vérification

FR1#sh frame-relay route
Input Intf      Input Dlci      Output Intf     Output Dlci     Status
Serial0/0       104             Serial0/1       401             active
Serial0/1       401             Serial0/0       104             active
!
FR1#sh frame-relay pvc | inc DLCI
DLCI = 104, DLCI USAGE = SWITCHED, PVC STATUS = ACTIVE, INTERFACE = Serial0/0
DLCI = 401, DLCI USAGE = SWITCHED, PVC STATUS = ACTIVE, INTERFACE = Serial0/1

R1#sh frame map
Serial1/0 (up): ip 192.168.1.4 dlci 104(0x68,0x1880), static,
              CISCO, status defined, active
R1#sh frame pvc | inc DLCI
DLCI = 104, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0

R4#sh frame map
Serial0/0 (up): ip 192.168.1.1 dlci 401(0x191,0x6410), static,
              CISCO, status defined, active
R4#sh frame pvc | inc DLCI
DLCI = 401, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0

R1#p 192.168.1.4 re 50

Type escape sequence to abort.
Sending 50, 100-byte ICMP Echos to 192.168.1.4, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (50/50), round-trip min/avg/max = 4/14/72 ms