环境：两台路由器，由串口相连。 要求：用两台路由器来模拟帧中继环境， fr-sw 为帧中继交换机，并使用静态路由使网络联通。 
步骤一：配置帧中继及联通性 fr-sw 的配置： fr-sw (config)# frame-relay switching à 启用帧中继交换机 fr-sw (config)#interface loopback 0 fr-sw (config-if)#ip address 1.1.1.1 255.0.0.0 fr-sw (config-if)#interface serial 0 fr-sw (config-if)# encapsulation frame-relay à 封装帧中继 fr-sw (config-if)# frame-relay intf-type dce à 时钟提供端 fr-sw (config-if)#clock rate 64000 fr-sw (config-if)#ip address 10.1.1.1 255.255.255.0 fr-sw (config-if)# frame-relay map ip 10.1.1.2 102 broadcast à 启用静态映射 , 此 DLCI 号码同时也是分配给对端设备的 DLCI 。因此，要求两端的 DLCI 号码必须相同。 fr-sw (config-if)# frame-relay map ip 10.1.1.1 102 broadcast à 指向自己的目的，是为了 PING 通本路由器的接口。 fr-sw (config-if)#no shutdown r2 的配置 r2(config)#interface loopback 0 r2(config-if)#ip address 2.2.2.2 255.0.0.0 r2(config-if)#interface serial0 r2(config-if)# encapsulation frame-relay r2(config-if)#ip address 10.1.1.2 255.255.255.0 r2(config-if)# frame-relay map ip 10.1.1.1 102 broadcast à 与对端相同。 r2(config-if)# frame-relay map ip 10.1.1.2 102 broadcast à 与对端相同。 r2(config-if)#no shutdown 步骤二、配置路由 fr-sw (config)#ip route 2.2.2.0 255.255.255.0 10.1.1.2 r2(config)#ip route 1.1.1.0 255.255.255.0 10.1.1.1 步骤三、测试 fr-sw # ping ip Target IP address: 2.2.2.2 Extended commands [n]: y Source address or interface: 1.1.1.1 !!!!! r2# ping Protocol [ip]: Target IP address: 1.1.1.1 Extended commands [n]: y Source address or interface: 2.2.2.2 !!!!! 步骤四、查看状态 fr-sw 的帧中继状态 fr-sw # show frame-relay pvc à 查看 PVC 状态 PVC Statistics for interface Serial0 (Frame Relay DCE) Active Inactive Deleted Static Local 1 0 0 0 Switched 0 0 0 0 Unused 0 0 0 0 DLCI = 102, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0 input pkts 69 output pkts 49 in bytes 6074 out bytes 5052 dropped pkts 0 in pkts dropped 0 out pkts dropped 0 out bytes dropped 0 in FECN pkts 0 in BECN pkts 0 out FECN pkts 0 out BECN pkts 0 in DE pkts 0 out DE pkts 0 out bcast pkts 0 out bcast bytes 0 pvc create time 00:48:44, last time pvc status changed 00:47:23 fr-sw # show frame-relay map à 查看帧中继映射 Serial0 (up): ip 10.1.1.1 dlci 102(0x66,0x1860), static , broadcast, CISCO, status defined, active Serial0 (up): ip 10.1.1.2 dlci 102(0x66,0x1860), static , broadcast, CISCO, status defined, active r2 帧中继的状态 : r2# show frame-relay pvc à 显示 PVC 状态 PVC Statistics for interface Serial0 (Frame Relay DTE) Active Inactive Deleted Static Local 1 0 0 0 Switched 0 0 0 0 Unused 0 0 0 0 DLCI = 102, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0 input pkts 26 output pkts 35 in bytes 2660 out bytes 3137 dropped pkts 0 in pkts dropped 0 out pkts dropped 0 out bytes dropped 0 in FECN pkts 0 in BECN pkts 0 out FECN pkts 0 out BECN pkts 0 in DE pkts 0 out DE pkts 0 out bcast pkts 9 out bcast bytes 477 pvc create time 00:20:07, last time pvc status changed 00:20:07 r2# show frame-relay map à 显示帧中继映射 Serial0 (up): ip 10.1.1.1 dlci 102(0x66,0x1860), static, broadcast, CISCO, status defined, active Serial0 (up): ip 10.1.1.2 dlci 102(0x66,0x1860), static, broadcast, CISCO, status defined, active 步骤五、显示当前配置 fr-sw 的当前配置： fr-sw # show running-config hostname fr-sw ! frame-relay switching ! ! ! interface Loopback0 ip address 1.1.1.1 255.255.255.0 ! interface Serial0 ip address 10.1.1.1 255.255.255.0 encapsulation frame-relay clockrate 64000 frame-relay map ip 10.1.1.1 102 broadcast frame-relay map ip 10.1.1.2 102 broadcast frame-relay intf-type dce ! ip route 2.2.2.0 255.255.255.0 10.1.1.2 ! end r2 的当前配置： r2# show running-config hostname r2 ! ! interface Loopback0 ip address 2.2.2.2 255.255.255.0 ! interface Serial0 ip address 10.1.1.2 255.255.255.0 encapsulation frame-relay frame-relay map ip 10.1.1.1 102 broadcast frame-relay map ip 10.1.1.2 102 broadcast ! ip route 1.1.1.0 255.255.255.0 10.1.1.1 ! end |
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