CCIE分解:帧中继子接口和流量整形配置

R1和R2之间的平均吞吐量较低为了节省开支，我们决定修改与服务提供商签署的合同，将约定信息速率从1.544Mbit/s降低到19.2Mbit/s

实验过程：

第一步：预配置、

R1(config)#int s3/0

R1(config-if)#encapsulation frame-relay

R1(config-if)#no frame-relay inverse-arp

R1(config-if)#no sh

R1(config-if)#end

R1(config)#int s3/0.1 point-to-point       //配置为点到点子接口

R1(config-subif)#no sh

R1(config-subif)#ip ad 192.168.12.1 255.255.255.0

R1(config-subif)#no frame-relay inverse-arp    //关闭反向ARP

R1(config-subif)#frame-relay interface-dlci 102

R1(config-subif)#exit

R1(config)#router ospf 1

R1(config-router)#net 0.0.0.0 0.0.0.0 area 0

R1(config-router)#exit

R1(config)#int s3/0.2 point-to-point

R1(config-subif)#no sh

R1(config-subif)#no frame-relay inverse-arp

R1(config-subif)#ip ad 192.168.13.1 255.255.255.0

R1(config-subif)#no sh

R1(config-subif)#frame-relay interface-dlci 103

R2(config)#int s3/0

R2(config-if)#encapsulation frame-relay

R2(config-if)#ip ad 192.168.12.2 255.255.255.0

R2(config-if)#no sh

R2(config-if)#frame-relay map ip 192.168.12.1 201 broadcast

R2(config-if)#exit

R2(config)#router ospf 1

R2(config-router)#net 0.0.0.0 0.0.0.0 area 0

R2(config-router)#exit

R2(config)#int s3/0

R2(config-if)#ip ospf network point-to-point

R3(config)#int s3/0

R3(config-if)#no sh

R3(config-if)#encapsulation frame-relay

R3(config-if)#no frame-relay inverse-arp

R3(config-if)#ip ad 192.168.13.3 255.255.255.0

R3(config-if)#no sh

R3(config-if)#frame-relay map ip 192.168.13.1 301 b

R3(config-if)#exit

R3(config)#router ospf 1

R3(config-router)#net 0.0.0.0 0.0.0.0 area 0

R3(config-router)#exit

R3(config)#int s3/0

R3(config-if)#ip ospf network point-to-point

实验过程：

第一步在R1 进行流量整形

R1(config)#map-class frame-relay CIR

R1(config-map-class)#frame-relay traffic-rate 19200

R1(config-map-class)#exit

R1(config)#int s3/0

R1(config-if)#frame-relay traffic-shaping

R1(config-if)#int s3/0.1

R1(config-subif)#frame-relay class CIR

R1(config-subif)#int s3/0.2

R1(config-subif)#frame-relay class CIR

第二步：在R2上进行流量整形。

R2(config)#map-class frame-relay CIR

R2(config-map-class)#frame-relay traffic-rate 19200

R2(config-map-class)#exit

R2(config)#int s3/0

R2(config-if)#frame-relay class CIR

第三步：查看更为详细的流量整流的统计结果

R1#show frame pvc 102

PVC Statistics for interface Serial3/0 (Frame Relay DTE)

DLCI = 102, DLCI USAGE = LOCAL, PVC STATUS = INACTIVE, INTERFACE = Serial3/0.1

  input pkts 0             output pkts 0            in bytes 0        

  out bytes 0              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        

  5 minute input rate 0 bits/sec, 0 packets/sec

  5 minute output rate 0 bits/sec, 0 packets/sec

  pvc create time 00:50:40, last time pvc status changed 00:50:40

  cir 19200     bc 19200     be 0         byte limit 300    interval 125

  mincir 9600      byte increment 300   Adaptive Shaping none

  pkts 0         bytes 0         pkts delayed 0         bytes delayed 0       

  shaping inactive   

  traffic shaping drops 0

  Queueing strategy: fifo

  Output queue 0/40, 0 drop, 0 dequeued

R2#show frame pvc 201

PVC Statistics for interface Serial3/0 (Frame Relay DTE)

DLCI = 201, DLCI USAGE = LOCAL, PVC STATUS = DELETED, INTERFACE = Serial3/0

  input pkts 0             output pkts 0            in bytes 0        

  out bytes 0              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        

  5 minute input rate 0 bits/sec, 0 packets/sec

  5 minute output rate 0 bits/sec, 0 packets/sec

  pvc create time 00:49:50, last time pvc status changed 00:49:37