config t
　　1
　　frame-relay switching
　　!
　　interface Serial0
　　no ip address
　　no keepalive
　　encapsulation frame-relay
　　clockrate 64000
　　frame-relay intf-type dce
　　! In the config below, the 102 is the DLCI that will be
　　! presented to the router connected to this - S0 -
　　! interface. 201 is the DLCI that is mapped to S1
　　frame-relay route 102 interface Serial1 201
　　frame-relay route 103 interface Serial2 301
　　interface Serial1
　　no ip address
　　no keepalive
　　encapsulation frame-relay
　　clockrate 64000
　　frame-relay intf-type dce
　　frame-relay route 201 interface Serial0 102
　　frame-relay route 203 interface Serial2 302
　　
　　interface Serial2
　　no ip address
　　no keepalive
　　encapsulation frame-relay
　　clockrate 64000
　　frame-relay intf-type dce
　　frame-relay route 301 interface Serial0 103
　　frame-relay route 302 interface Serial1 203
　　
　　
　　源码:--------------------------------------------------------------------------------
　　 ________ ______
　　 FR SW _S2______S0_ R3
　　 _______ ______
　　 S0 / S1
　　 / / S0 __/___ __S0__
　　 R1 R2
　　 _____ _______
　　
　　--------------------------------------------------------------------------------
　　R1 S0, R2 S0 and R3 S0 will be on the same subnet. You can treat it as p2mp.
　　I put all the DCE ends of the cables on the Frame Switch, so clock rate is
　　defined there. However, this is not a requirement. The FR Switch router
　　does not need to have the DCE end. Regardless of the gender of the cable,
　　however, the "frame-relay intf-type dce" is required. I defined the DLCIs
　　as Source Router + 0 + Destination Router. So if the circuit goes from
　　R1 to R3 it's DLCI 103. From R3 to R1 it's DLCI 301.