这是 YS-Routersim中的一个实验。但是YS-Routersim不支持帧中继。但经实践，该实验可在PacketTracer4.0中运行。

点对点帧中继配置(Point to point frame relay)

设RouterB做帧中继交换机，配置如下：
RouterB(config)#frame-relay switching
RouterB(config)#int s0/0
RouterB(config-if)#ip address 172.l6.20.2 255.255.255.0
RouterB(config-if)#encap frame-relay
RouterB(config-if)#fram-relay lmi-type cisco
RouterB(config-if)#frame-relay intf-type dce
RouterB(config-if)#frame-relay interface-dlci 16
RouterB(config-fr-dlci)#exit
RouterB(config-if)#no shutdown

RouterB(config)#int s0/1
RouterB(config-if)#ip address 172.l6.40.1 255.255.255.0
RouterB(config-if)#encap frame-relay
RouterB(config-if)#fram-relay lmi-type cisco
RouterB(config-if)#frame-relay intf-type dce
RouterB(config-if)#frame-relay interface-dlci 17
RouterB(config-fr-dlci)#exit
RouterB(config-if)#no shutdown

RouterA(config)#int s0/0
RouterA(config-if)#ip address 172.l6.20.1 255.255.255.0
RouterA(config-if)#encap frame-relay
RouterA(config-if)#fram-relay lmi-type cisco
RouterA(config-if)#frame-relay interface-dlci 16
RouterC(config-fr-dlci)#exit
RouterA(config-if)#no shutdown

RouterC(config)#int s0
RouterC(config-if)#ip address 172.l6.40.2 255.255.255.0
RouterC(config-if)#encap frame-relay
RouterC(config-if)#fram-relay lmi-type cisco
RouterC(config-if)#frame-relay interface-dlci 17
RouterC(config-fr-dlci)#exit
RouterC(config-if)#no shutdown

RouterA#sh frame map
RouterA#sh frame pvc